Tuomas Savolainen

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Tuomas Savolainen

Docent, Dr.

 https://orcid.org/0000-0001-6214-1085
  • Phone+358294424855 , +358503083696

  • Maarintie 8, Room 2147

    02150 Espoo

  • Metsahovi Radio Observatory Metsahovintie 114

20012023

Research activity per year

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Search results

  • 2023

    A ring-like accretion structure in M87 connecting its black hole and jet

    Lu, R. S., Asada, K., Krichbaum, T. P., Park, J., Tazaki, F., Pu, H. Y., Nakamura, M., Lobanov, A., Hada, K., Akiyama, K., Kim, J. Y., Marti-Vidal, I., Gómez, J. L., Kawashima, T., Yuan, F., Ros, E., Alef, W., Britzen, S., Bremer, M., Broderick, A. E., & 101 othersDoi, A., Giovannini, G., Giroletti, M., Ho, P. T. P., Honma, M., Hughes, D. H., Inoue, M., Jiang, W., Kino, M., Koyama, S., Lindqvist, M., Liu, J., Marscher, A. P., Matsushita, S., Nagai, H., Rottmann, H., Savolainen, T., Schuster, K. F., Shen, Z. Q., de Vicente, P., Walker, R. C., Yang, H., Zensus, J. A., Algaba, J. C., Allardi, A., Bach, U., Berthold, R., Bintley, D., Byun, D. Y., Casadio, C., Chang, S. H., Chang, C. C., Chang, S. C., Chen, C. C., Chen, M. T., Chilson, R., Chuter, T. C., Conway, J., Crew, G. B., Dempsey, J. T., Dornbusch, S., Faber, A., Friberg, P., García, J. G., Garrido, M. G., Han, C. C., Han, K. C., Hasegawa, Y., Herrero-Illana, R., Huang, Y. D., Huang, C. W. L., Impellizzeri, V., Jiang, H., Jinchi, H., Jung, T., Kallunki, J., Kirves, P., Kimura, K., Koay, J. Y., Koch, P. M., Kramer, C., Kraus, A., Kubo, D., Kuo, C. Y., Li, C. T., Lin, L. C. C., Liu, C. T., Liu, K. Y., Lo, W. P., Lu, L. M., MacDonald, N., Martin-Cocher, P., Messias, H., Meyer-Zhao, Z., Minter, A., Nair, D. G., Nishioka, H., Norton, T. J., Nystrom, G., Ogawa, H., Oshiro, P., Patel, N. A., Pen, U. L., Pidopryhora, Y., Pradel, N., Raffin, P. A., Rao, R., Ruiz, I., Sanchez, S., Shaw, P., Snow, W., Sridharan, T. K., Srinivasan, R., Tercero, B., Torne, P., Traianou, E., Wagner, J., Walther, C., Wei, T. S., Yang, J. & Yu, C. Y., 1 Apr 2023, In: Nature. 616, 7958, p. 686-690 5 p.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    9 Citations (Scopus)
    8 Downloads (Pure)

  • Baseline Vector Repeatability at the Sub-Millimeter Level Enabled by Radio Interferometer Phase Delays of Intra-Site Baselines

    Xu, M. H., Savolainen, T., Bolotin, S., Bernhart, S., Plötz, C., Haas, R., Varenius, E., Wang, G., McCallum, J., Heinkelmann, R., Lunz, S., Schuh, H., Zubko, N. & Kareinen, N., Mar 2023, In: JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH. 128, 3, e2022JB025198.

    Research output: Contribution to journal › Article › Scientific › peer-review

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  • Comparison of Polarized Radiative Transfer Codes Used by the EHT Collaboration

    Ramakrishnan, V., Savolainen, T. & Event Horizon Telescope Collaboration, 1 Jun 2023, In: Astrophysical Journal. 950, 1, 35.

    Research output: Contribution to journal › Article › Scientific › peer-review

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  • Current Status of the EU-VGOS Project

    Albentosa, E., Alef, W., Bernhardt, S., Böhm, J., Bolano Gonzalez, R., Choi, Y., Gansmoe, T., Garcia Espada, S., Garcia Niro, C., Girdiuk, A., Gonzalz Garcia, J., Groøslie Wennesland, A. S., Gruber, J., Haas, R., Hammargren, R., Heinkelmann, R., Jaron, F., Kareinen, N. P., Kirkvik, A-S., Krasna, H., & 19 othersMartinez, E., Marti-Vidal, I., Meldahl, A., Melnikov, A., Modiri, S., Neidhardt, A., Nothnagel, A., Panzenböck, O., Perez, V., Petrov, L., Plötz, C., Rottmann, H., Savolainen, T., Schartner, M., Schuh, H., Soja, B., Varenius, E., de Vicente, P. & Wagner, J., Jan 2023, International VLBI Service for Geodesy and Astrometry 2022 General Meeting Proceedings. NASA - National Aeronautics and Space Administration, 5 p. (NASA/CP; no. 20220018789).

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Professional

    Open Access

  • Filamentary structures as the origin of blazar jet radio variability

    Fuentes, A., Gómez, J. L., Martí, J. M., Perucho, M., Zhao, G. Y., Lico, R., Lobanov, A. P., Bruni, G., Kovalev, Y. Y., Chael, A., Akiyama, K., Bouman, K. L., Sun, H., Cho, I., Traianou, E., Toscano, T., Dahale, R., Foschi, M., Gurvits, L. I., Jorstad, S., & 5 othersKim, J. Y., Marscher, A. P., Mizuno, Y., Ros, E. & Savolainen, T., 2023, (E-pub ahead of print) In: Nature Astronomy.

    Research output: Contribution to journal › Article › Scientific › peer-review

    Open Access
    1 Citation (Scopus)

  • MOJAVE – XX. Persistent linear polarization structure in parsec-scale AGN jets

    Pushkarev, A. B., Aller, H. D., Aller, M. F., Homan, D. C., Kovalev, Y. Y., Lister, M. L., Pashchenko, I. N., Savolainen, T. & Zobnina, D. I., 1 Apr 2023, In: Monthly Notices of the Royal Astronomical Society. 520, 4, p. 6053-6069 17 p.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    4 Citations (Scopus)
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  • MOJAVE - XXI. Decade-long linear polarization variability in AGN jets at parsec scales

    Zobnina, D. I., Aller, H. D., Aller, M. F., Homan, D. C., Kovalev, Y. Y., Lister, M. L., Pashchenko, I. N., Pushkarev, A. B. & Savolainen, T., 1 Aug 2023, In: Monthly Notices of the Royal Astronomical Society. 523, 3, p. 3615-3628 14 p.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    1 Citation (Scopus)
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  • RadioAstron discovery of a mini-cocoon around the restarted parsec-scale jet in 3C 84

    Savolainen, T., Giovannini, G., Kovalev, Y. Y., Perucho, M., Anderson, J. M., Bruni, G., Edwards, P. G., Fuentes, A., Giroletti, M., Gomez, J. L., Hada, K., Lee, S. S., Lisakov, M. M., Lobanov, A. P., Lopez-Miralles, J., Orienti, M., Petrov, L., Plavin, A. V., Sohn, B. W., Sokolovsky, K. V., & 2 othersVoitsik, P. A. & Zensus, J. A., 1 Aug 2023, In: Astronomy and Astrophysics. 676, A114.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    1 Citation (Scopus)
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  • RadioAstron Space VLBI Imaging of the Jet in M87. I. Detection of High Brightness Temperature at 22 GHz

    Kim, J. Y., Savolainen, T., Voitsik, P., Kravchenko, E. V., Lisakov, M. M., Kovalev, Y. Y., Müller, H., Lobanov, A. P., Sokolovsky, K. V., Bruni, G., Edwards, P. G., Reynolds, C., Bach, U., Gurvits, L. I., Krichbaum, T. P., Hada, K., Giroletti, M., Orienti, M., Anderson, J. M., Lee, S. S., & 2 othersSohn, B. W. & Zensus, J. A., 1 Jul 2023, In: Astrophysical Journal. 952, 1, 34.

    Research output: Contribution to journal › Article › Scientific › peer-review

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  • The Event Horizon Telescope Image of the Quasar NRAO 530

    Jorstad, S., Wielgus, M., Lico, R., Issaoun, S., Broderick, A. E., Pesce, D. W., Liu, J., Zhao, G. Y., Krichbaum, T. P., Blackburn, L., Chan, C. K., Janssen, M., Ramakrishnan, V., Akiyama, K., Alberdi, A., Algaba, J. C., Bouman, K. L., Cho, I., Fuentes, A., Gómez, J. L., & 2 othersGurwell, M. & Event Horizon Telescope Collaboration, 1 Feb 2023, In: Astrophysical Journal. 943, 2, 19 p., 170.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    3 Citations (Scopus)
    19 Downloads (Pure)

  • Time variability of the core-shift effect in the blazar 3C 454.3

    Chamani, W., Savolainen, T., Ros, E., Kovalev, Y. Y., Wiik, K., Lähteenmäki, A., Tornikoski, M. & Tammi, J., 1 Apr 2023, In: Astronomy and Astrophysics. 672, A130.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    2 Citations (Scopus)
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  • 2022

    A decade of joint MOJAVE-Fermi AGN monitoring: localization of the gamma-ray emission region

    Kramarenko, I. G., Pushkarev, A. B., Kovalev, Y. Y., Lister, M. L., Hovatta, T. & Savolainen, T., Feb 2022, In: Monthly Notices of the Royal Astronomical Society. 510, 1, p. 469-480 12 p.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    8 Citations (Scopus)
    108 Downloads (Pure)

  • A Universal Power-law Prescription for Variability from Synthetic Images of Black Hole Accretion Flows

    Georgiev, B., Pesce, D. W., Broderick, A. E., Wong, G. N., Dhruv, V., Wielgus, M., Gammie, C. F., Chan, C. K., Chatterjee, K., Emami, R., Mizuno, Y., Gold, R., Fromm, C. M., Ricarte, A., Yoon, D., Joshi, A. V., Prather, B., Cruz-Osorio, A., Johnson, M. D., Porth, O., & 31 othersOlivares, H., Younsi, Z., Rezzolla, L., Vos, J., Qiu, R., Nathanail, A., Narayan, R., Chael, A., Anantua, R., Moscibrodzka, M., Akiyama, K., Alberdi, A., Alef, W., Algaba, J. C., Asada, K., Azulay, R., Bach, U., Baczko, A. K., Ball, D., Baloković, M., Barrett, J., Bauböck, M., Benson, B. A., Bintley, D., Blackburn, L., Blundell, R., Kim, D. J., Ramakrishnan, V., Savolainen, T., Wagner, J. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, p. 1-32 32 p., L20.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    14 Citations (Scopus)
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  • Characterizing and Mitigating Intraday Variability: Reconstructing Source Structure in Accreting Black Holes with mm-VLBI

    Broderick, A. E., Gold, R., Georgiev, B., Pesce, D. W., Tiede, P., Ni, C., Moriyama, K., Akiyama, K., Alberdi, A., Alef, W., Algaba, J. C., Anantua, R., Asada, K., Azulay, R., Bach, U., Baczko, A. K., Ball, D., Baloković, M., Barrett, J., Bauböck, M., & 31 othersBenson, B. A., Bintley, D., Blackburn, L., Blundell, R., Bouman, K. L., Bower, G. C., Boyce, H., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., Broguiere, D., Bronzwaer, T., Bustamante, S., Byun, D. Y., Carlstrom, J. E., Ceccobello, C., Chael, A., Chan, C. K., Chatterjee, K., Chatterjee, S., Chen, M. T., Chen, Y., Cheng, X., Cho, I., Christian, P., Kim, D. J., Ramakrishnan, V., Savolainen, T., Wagner, J. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, p. 1-30 30 p., L21.

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    16 Citations (Scopus)
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  • Collimation of the Relativistic Jet in the Quasar 3C 273

    Okino, H., Akiyama, K., Asada, K., Gómez, J. L., Hada, K., Honma, M., Krichbaum, T. P., Kino, M., Nagai, H., Bach, U., Blackburn, L., Bouman, K. L., Chael, A., Crew, G. B., Doeleman, S. S., Fish, V. L., Goddi, C., Issaoun, S., Johnson, M. D., Jorstad, S., & 15 othersKoyama, S., Lonsdale, C. J., Lu, R. S., Martí-Vidal, I., Matthews, L. D., Mizuno, Y., Moriyama, K., Nakamura, M., Pu, H. Y., Ros, E., Savolainen, T., Tazaki, F., Wagner, J., Wielgus, M. & Zensus, A., 1 Nov 2022, In: Astrophysical Journal. 940, 1, 65.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    2 Citations (Scopus)
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  • First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

    Ramakrishnan, V., Savolainen, T. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, L12.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    390 Citations (Scopus)
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  • First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multiwavelength Observations, Data Processing, and Calibration

    Ramakrishnan, V., Savolainen, T. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, 31 p., L13.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    88 Citations (Scopus)
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  • First Sagittarius A* Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole

    Ramakrishnan, V., Savolainen, T. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, L14.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    109 Citations (Scopus)
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  • First Sagittarius A* Event Horizon Telescope Results. IV. Variability, Morphology, and Black Hole Mass

    Ramakrishnan, V., Savolainen, T. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, L15.

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    81 Citations (Scopus)
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  • First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole

    Ramakrishnan, V., Savolainen, T. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, L16.

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    119 Citations (Scopus)
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  • First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric

    Ramakrishnan, V., Savolainen, T. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, L17.

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    145 Citations (Scopus)
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  • Impact of the image alignment over frequency for the VLBI Global Observing System

    Xu, M. H., Savolainen, T., Anderson, J. M., Kareinen, N., Zubko, N., Lunz, S. & Schuh, H., 18 Jul 2022, In: Astronomy & Astrophysics. 663, 10 p., 83.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    4 Citations (Scopus)
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  • Millimeter Light Curves of Sagittarius A* Observed during the 2017 Event Horizon Telescope Campaign

    Wielgus, M., Marchili, N., Martí-Vidal, I., Keating, G. K., Ramakrishnan, V., Tiede, P., Fomalont, E., Issaoun, S., Neilsen, J., Nowak, M. A., Blackburn, L., Gammie, C. F., Goddi, C., Haggard, D., Lee, D., Moscibrodzka, M., Tetarenko, A. J., Bower, G. C., Chan, C. K., Chatterjee, K., & 31 othersChesler, P. M., Dexter, J., Doeleman, S. S., Georgiev, B., Gurwell, M., Johnson, M. D., Marrone, D. P., Mus, A., Psaltis, D., Ripperda, B., Witzel, G., Akiyama, K., Alberdi, A., Alef, W., Algaba, J. C., Anantua, R., Asada, K., Azulay, R., Bach, U., Baczko, A. K., Ball, D., Baloković, M., Barrett, J., Bauböck, M., Benson, B. A., Bintley, D., Blundell, R., Kim, D. J., Savolainen, T., Wagner, J. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, p. 1-32 32 p., L19.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    35 Citations (Scopus)
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  • Probing the Innermost Regions of AGN Jets and Their Magnetic Fields with RadioAstron. V. Space and Ground Millimeter-VLBI Imaging of OJ 287

    Gómez, J. L., Traianou, E., Krichbaum, T. P., Lobanov, A. P., Fuentes, A., Lico, R., Zhao, G-Y., Bruni, G., Kovalev, Y. Y., Lähteenmäki, A., Voitsik, P. A., Lisakov, M. M., Angelakis, E., Bach, U., Casadio, C., Cho, I., Dey, L., Gopakumar, A., Gurvits, L. I., Jorstad, S., & 10 othersKovalev, Y. A., Lister, M. L., Marscher, A. P., Myserlis, I., Pushkarev, A. B., Ros, E., Savolainen, T., Tornikoski, M., Valtonen, M. J. & Zensus, A., Jan 2022, In: The Astrophysical Journal. 924, 2, 16 p., 122.

    Research output: Contribution to journal › Article › Scientific › peer-review

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    18 Citations (Scopus)
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  • Resolving the Inner Parsec of the Blazar J1924-2914 with the Event Horizon Telescope

    Issaoun, S., Wielgus, M., Jorstad, S., Krichbaum, T. P., Blackburn, L., Janssen, M., Chan, C., Pesce, D. W., Gomez, J. L., Akiyama, K., Moscibrodzka, M., Marti-Vidal, I., Chael, A., Lico, R., Liu, J., Ramakrishnan, V., Lisakov, M., Fuentes, A., Zhao, G-Y., Moriyama, K., & 31 othersBroderick, A. E., Tiede, P., MacDonald, N. R., Mizuno, Y., Traianou, E., Loinard, L., Davelaar, J., Gurwell, M., Lu, R-S., Alberdi, A., Alef, W., Algaba, J. C., Anantua, R., Asada, K., Azulay, R., Bach, U., Baczko, A-K., Ball, D., Balokovic, M., Barrett, J., Baubock, M., Benson, B. A., Bintley, D., Blundell, R., Boland, W., Bouman, K. L., Bower, G. C., Kim, D-J., Savolainen, T., Wagner, J. & Event Horizon Telescope Collaboration, 1 Aug 2022, In: The Astrophysical Journal. 934, 2, 21 p., 145.

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  • Selective Dynamical Imaging of Interferometric Data

    Farah, J., Galison, P., Akiyama, K., Bouman, K. L., Bower, G. C., Chael, A., Fuentes, A., Gómez, J. L., Honma, M., Johnson, M. D., Kofuji, Y., Marrone, D. P., Moriyama, K., Narayan, R., Pesce, D. W., Tiede, P., Wielgus, M., Zhao, G. Y., Alberdi, A., Alef, W., & 31 othersAlgaba, J. C., Anantua, R., Asada, K., Azulay, R., Baczko, A. K., Ball, D., Baloković, M., Barrett, J., Benson, B. A., Bintley, D., Blackburn, L., Blundell, R., Boland, W., Boyce, H., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., Broderick, A. E., Broguiere, D., Bronzwaer, T., Bustamente, S., Byun, D. Y., Carlstrom, J. E., Chan, C. K., Chatterjee, K., Kim, D. J., Ramakrishnan, V., Savolainen, T., Wagner, J. & Event Horizon Telescope Collaboration, 1 May 2022, In: Astrophysical Journal Letters. 930, 2, p. 1-21 21 p., L18.

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  • The science case and challenges of space-borne sub-millimeter interferometry

    Gurvits, L. I., Paragi, Z., Amils, R. I., van Bemmel, I., Boven, P., Casasola, V., Conway, J., Davelaar, J., Díez-González, M. C., Falcke, H., Fender, R., Frey, S., Fromm, C. M., Gallego-Puyol, J. D., García-Miró, C., Garrett, M. A., Giroletti, M., Goddi, C., Gómez, J. L., van der Gucht, J., & 34 othersGuirado, J. C., Haiman, Z., Helmich, F., Hudson, B., Humphreys, E., Impellizzeri, V., Janssen, M., Johnson, M. D., Kovalev, Y. Y., Kramer, M., Lindqvist, M., Linz, H., Liuzzo, E., Lobanov, A. P., López-Fernández, I., Malo-Gómez, I., Masania, K., Mizuno, Y., Plavin, A. V., Rajan, R. T., Rezzolla, L., Roelofs, F., Ros, E., Rygl, K. L. J., Savolainen, T., Schuster, K., Venturi, T., Verkouter, M., de Vicente, P., Visser, P. N. A. M., Wiedner, M. C., Wielgus, M., Wiik, K. & Zensus, J. A., Jul 2022, In: Acta Astronautica. 196, p. 314-333 20 p.

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  • The Variability of the Black Hole Image in M87 at the Dynamical Timescale

    Satapathy, K., Psaltis, D., Ozel, F., Medeiros, L., Dougall, S. T., Chan, C-K., Wielgus, M., Prather, B. S., Wong, G. N., Gammie, C. F., Akiyama, K., Alberdi, A., Alef, W., Algaba, J. C., Anantua, R., Asada, K., Azulay, R., Baczko, A-K., Ball, D., Balokovic, M., & 217 othersBarrett, J., Benson, B. A., Bintley, D., Blackburn, L., Blundell, R., Boland, W., Bouman, K. L., Bower, G. C., Boyce, H., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., Broderick, A. E., Broguiere, D., Bronzwaer, T., Bustamente, S., Byun, D-Y., Carlstrom, J. E., Chael, A., Chatterjee, K., Chatterjee, S., Chen, M-T., Chen, Y., Cho, I., Christian, P., Conway, J. E., Cordes, J. M., Crawford, T. M., Crew, G. B., Cruz-Osorio, A., Cui, Y., Davelaar, J., De Laurentis, M., Deane, R., Dempsey, J., Desvignes, G., Dexter, J., Doeleman, S. S., Eatough, R. P., Falcke, H., Farah, J., Fish, V. L., Fomalont, E., Ford, H. A., Fraga-Encinas, R., Friberg, P., Fromm, C. M., Fuentes, A., Galison, P., Garcia, R., Gentaz, O., Georgiev, B., Goddi, C., Gold, R., Gomez-Ruiz, A., Gomez, J. L., Gu, M., Gurwell, M., Hada, K., Haggard, D., Hecht, M. H., Hesper, R., Ho, P., Honma, M., Huang, C-W. L., Huang, L., Hughes, D. H., Ikeda, S., Inoue, M., Issaoun, S., James, D. J., Jannuzi, B. T., Janssen, M., Jeter, B., Jiang, W., Jimenez-Rosales, A., Johnson, M. D., Jorstad, S., Jung, T., Karami, M., Karuppusamy, R., Kawashima, T., Keating, G. K., Kettenis, M., Kim, D-J., Kim, J-Y., Kim, J., Kim, J., Kino, M., Koay, J. Y., Kofuji, Y., Koch, P. M., Koyama, S., Kramer, C., Kramer, M., Krichbaum, T. P., Kuo, C-Y., Lauer, T. R., Lee, S-S., Levis, A., Li, Y-R., Li, Z., Lindqvist, M., Lico, R., Lindahl, G., Liu, J., Liu, K., Liuzzo, E., Lo, W-P., Lobanov, A. P., Loinard, L., Lonsdale, C., Lu, R-S., MacDonald, N. R., Mao, J., Marchili, N., Markoff, S., Marrone, D. P., Marscher, A. P., Marti-Vidal, I., Matsushita, S., Matthews, L. D., Menten, K. M., Mizuno, I., Mizuno, Y., Moran, J. M., Moriyama, K., Moscibrodzka, M., Mueller, C., Mejias, A. M., Musoke, G., Nagai, H., Nagar, N. M., Nakamura, M., Narayan, R., Narayanan, G., Natarajan, I., Nathanail, A., Neilsen, J., Neri, R., Ni, C., Noutsos, A., Nowak, M. A., Okino, H., Olivares, H., Ortiz-Leon, G. N., Oyama, T., Palumbo, D. C. M., Park, J., Patel, N., Pen, U-L., Pesce, D. W., Pietu, V., Plambeck, R., PopStefanija, A., Porth, O., Potzl, F. M., Preciado-Lopez, J. A., Pu, H-Y., Ramakrishnan, V., Rao, R., Rawlings, M. G., Raymond, A. W., Rezzolla, L., Ripperda, B., Roelofs, F., Rogers, A., Ros, E., Rose, M., Roshanineshat, A., Rottmann, H., Roy, A. L., Ruszczyk, C., Rygl, K. L. J., Sanchez, S., Sanchez-Arguelles, D., Sasada, M., Savolainen, T., Schloerb, F. P., Schuster, K-F., Shao, L., Shen, Z., Small, D., Sohn, B. W., SooHoo, J., Sun, H., Tazaki, F., Tetarenko, A. J., Tiede, P., Tilanus, R. P. J., Titus, M., Toma, K., Torne, P., Traianou, E., Trent, T., Trippe, S., van Bemmel, I., van Langevelde, H. J., van Rossum, D. R., Wagner, J., Ward-Thompson, D., Wardle, J., Weintroub, J., Wex, N., Wharton, R., Wiik, K., Wu, Q., Yoon, D., Young, A., Young, K., Younsi, Z., Yuan, F., Yuan, Y-F., Zensus, J. A., Zhao, G-Y. & Zhao, S-S., 1 Jan 2022, In: The Astrophysical Journal. 925, 1, 19 p., 13.

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  • Unraveling the Innermost Jet Structure of OJ 287 with the First GMVA + ALMA Observations

    Zhao, G. Y., Gómez, J. L., Fuentes, A., Krichbaum, T. P., Traianou, E., Lico, R., Cho, I., Ros, E., Komossa, S., Akiyama, K., Asada, K., Blackburn, L., Britzen, S., Bruni, G., Crew, G. B., Dahale, R., Dey, L., Gold, R., Gopakumar, A., Issaoun, S., & 16 othersJanssen, M., Jorstad, S., Kim, J. Y., Koay, J. Y., Kovalev, Y. Y., Koyama, S., Lobanov, A. P., Loinard, L., Lu, R. S., Markoff, S., Marscher, A. P., Martí-Vidal, I., Mizuno, Y., Park, J., Savolainen, T. & Toscano, T., 1 Jun 2022, In: The Astrophysical Journal. 932, 1, 12 p., 72.

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  • 2021

    An Oversized Magnetic Sheath Wrapping around the Parsec-scale Jet in 3C 273

    Lisakov, M. M., Kravchenko, E. V., Pushkarev, A. B., Kovalev, Y. Y., Savolainen, T. K. & Lister, M. L., 20 Mar 2021, In: The Astrophysical Journal. 910, 1, 8 p., 35.

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    7 Citations (Scopus)

  • A transition from parabolic to conical shape as a common effect in nearby AGN jets

    Kovalev, Y. Y., Pushkarev, A. B., Nokhrina, E. E., Plavin, A. V., Beskin, V. S., Chernoglazov, A. V., Lister, M. L. & Savolainen, T., 2021, In: Monthly Notices of the Royal Astronomical Society. 495, 4, p. 3576-3591 16 p.

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  • Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

    Reynolds, M. T., Event Horizon Telescope Collaboration, Fermi Large Area Telescope Collaboration, H.E.S.S. Collaboration, MAGIC Collaboration, VERITAS Collaboration & EAVN Collaboration, 10 Apr 2021, In: Astrophysical Journal Letters. 911, 1, L11.

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  • Constraints on black-hole charges with the 2017 EHT observations of M87∗

    Kocherlakota, P., Rezzolla, L., Falcke, H., Fromm, C. M., Kramer, M., Mizuno, Y., Nathanail, A., Olivares, H., Younsi, Z., Akiyama, K., Alberdi, A., Alef, W., Algaba, J. C., Anantua, R., Asada, K., Azulay, R., Baczko, A. K., Ball, D., Baloković, M., Barrett, J., & 31 othersBenson, B. A., Bintley, D., Blackburn, L., Blundell, R., Boland, W., Bouman, K. L., Bower, G. C., Boyce, H., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., Broderick, A. E., Broguiere, D., Bronzwaer, T., Byun, D. Y., Carlstrom, J. E., Chael, A., Chan, C. K., Chatterjee, S., Chatterjee, K., Chen, M. T., Chen, Y., Chesler, P. M., Cho, I., Christian, P., Kim, D. J., Ramakrishnan, V., Savolainen, T., Wagner, J. & Event Horizon Telescope Collaboration, 20 May 2021, In: Physical Review D. 103, 10, 18 p., 104047.

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  • Event Horizon Telescope observations of the jet launching and collimation in Centaurus A

    Savolainen, T. & Event Horizon Telescope Collaboration, Oct 2021, In: Nature Astronomy. 5, 10, p. 1017-1028 12 p.

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  • Evidence of the Gaia-VLBI position differences being related to radio source structure

    Xu, M., Lunz, S., Anderson, J. M., Savolainen, T., Zubko, N. & Schuh, H., 1 Mar 2021, In: Astronomy & Astrophysics. 647, 13 p., A189.

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  • First M87 Event Horizon Telescope Results. VII. Polarization of the Ring

    Event Horizon Telescope Collaboration, 20 Mar 2021, In: Astrophysical Journal Letters. 910, 1, 48 p., 12.

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  • First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near the Event Horizon

    Savolainen, T. & Event Horizon Telescope Collaboration, 20 Mar 2021, In: Astrophysical Journal Letters. 910, 1, 43 p., 13.

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  • Geodetic data analysis of VGOS experiments

    Alef, W., Andalsvik, Y. L., Anderson, J. M., Bernhart, S., Bohm, J., Boumann, J., Choi, Y. K., Colomer, F., Engelhardt, G., Flohrer, C., Girdiuk, A., Gonzalez, J., Gruber, J. F., Haas, R., Hammargren, R., Hohlneicher, M., Jaron, F., Jenie, O. S., Kareinen, N., Lovhoiden, L., & 23 othersMartinez, E., Marti-Vidal, I., Melnikov, A., Mueskens, A., Neidhardt, A., Nothnagel, A., Petrov, L., Plotz, C., Rottmann, H., Savolainen, T., Schartner, M., Schuh, H., Schueler, T., Small, D., Szomoru, A., Thaller, D., Ullrich, DI., Varenius, E., Verkouter, H., De Vicente, P., Wagner, J., Xu, M. & Zubko, N., 28 Aug 2021.

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  • Imaging VGOS Observations and Investigating Source Structure Effects

    Xu, M. H., Savolainen, T., Zubko, N., Poutanen, M., Lunz, S., Schuh, H. & Wang, G. L., Apr 2021, In: JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH. 126, 4, 35 p., e2020JB021238.

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  • MOJAVE. XIX. Brightness Temperatures and Intrinsic Properties of Blazar Jets

    Homan, D. C., Cohen, M. H., Hovatta, T., Kellermann, K., Kovalev, Y. Y., Lister, M. L., Popkov, A., Pushkarev, A. B., Ros, E. & Savolainen, T., 10 Dec 2021, In: The Astrophysical Journal. 923, 1, 23 p., 67.

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  • Monitoring Of Jets in Active Galactic Nuclei with VLBA Experiments. XVIII. Kinematics and Inner Jet Evolution of Bright Radio-loud Active Galaxies

    Lister, M. L., Homan, D. C., Kellermann, K. I., Kovalev, Y. Y., Pushkarev, A. B., Ros, E. & Savolainen, T., 10 Dec 2021, In: The Astrophysical Journal. 923, 1, 19 p., 30.

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    36 Citations (Scopus)

  • Observing the Time Evolution of the Multicomponent Nucleus of 3C 84

    Punsly, B., Nagai, H., Savolainen, T. & Orienti, M., 16 Apr 2021, In: The Astrophysical Journal. 911, 1, 18 p., 19.

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  • Polarimetric Properties of Event Horizon Telescope Targets from ALMA

    Event Horizon Telescope Collaboration, 20 Mar 2021, In: Astrophysical Journal Letters. 910, 1, 54 p., 14.

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  • Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron: IV. The quasar 3C 345 at 18 cm: Magnetic field structure and brightness temperature

    Potzl, F. M., Lobanov, A. P., Ros, E., Gomez, J. L., Bruni, G., Bach, U., Fuentes, A., Gurvits, L. I., Jauncey, D. L., Kovalev, Y. Y., Kravchenko, E. V., Lisakov, M. M., Savolainen, T., Sokolovsky, K. V. & Zensus, J. A., 14 Apr 2021, In: Astronomy and Astrophysics. 648, 10 p., A82.

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  • RadioAstron reveals a spine-sheath jet structure in 3C 273

    Bruni, G., Gómez, J. L., Vega-García, L., Lobanov, A. P., Fuentes, A., Savolainen, T., Kovalev, Y. Y., Perucho, M., Martí, J. M., Anderson, J. M., Edwards, P. G., Gurvits, L. I., Lisakov, M. M., Pushkarev, A. B., Sokolovsky, K. V. & Zensus, J. A., 6 Oct 2021, In: Astronomy and Astrophysics. 654, 9 p., 27.

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  • Testing the magnetic flux paradigm for AGN radio loudness with a radio-intermediate quasar

    Chamani, W., Savolainen, T., Hada, K. & Xu, M. H., 3 Aug 2021, In: Astronomy and Astrophysics. 652, 28 p., A14.

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  • The Polarized Image of a Synchrotron-emitting Ring of Gas Orbiting a Black Hole

    Narayan, R., Palumbo, D. C. M., Johnson, M. D., Gelles, Z., Himwich, E., Chang, D. O., Ricarte, A., Dexter, J., Gammie, C. F., Chael, A. A., Akiyama, K., Alberdi, A., Alef, W., Algaba, J. C., Anantua, R., Asada, K., Azulay, R., Baczko, A. K., Ball, D., Baloković, M., & 218 othersBarrett, J., Benson, B. A., Bintley, D., Blackburn, L., Blundell, R., Boland, W., Bouman, K. L., Bower, G. C., Boyce, H., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., Broderick, A. E., Broguiere, D., Bronzwaer, T., Byun, D. Y., Carlstrom, J. E., Chan, C. K., Chatterjee, S., Chatterjee, K., Chen, M. T., Chen, Y., Chesler, P. M., Cho, I., Christian, P., Conway, J. E., Cordes, J. M., Crawford, T. M., Crew, G. B., Cruz-Osorio, A., Cui, Y., Davelaar, J., De Laurentis, M., Deane, R., Dempsey, J., Desvignes, G., Doeleman, S. S., Eatough, R. P., Falcke, H., Farah, J., Fish, V. L., Fomalont, E., Ford, H. A., Fraga-Encinas, R., Friberg, P., Fromm, C. M., Fuentes, A., Galison, P., García, R., Gentaz, O., Georgiev, B., Goddi, C., Gold, R., Gómez, J. L., Gómez-Ruiz, A. I., Gu, M., Gurwell, M., Hada, K., Haggard, D., Hecht, M. H., Hesper, R., Ho, L. C., Ho, P., Honma, M., Huang, C. W. L., Huang, L., Hughes, D. H., Ikeda, S., Inoue, M., Issaoun, S., James, D. J., Jannuzi, B. T., Janssen, M., Jeter, B., Jiang, W., Jimenez-Rosales, A., Jorstad, S., Jung, T., Karami, M., Karuppusamy, R., Kawashima, T., Keating, G. K., Kettenis, M., Kim, D. J., Kim, J. Y., Kim, J., Kim, J., Kino, M., Koay, J. Y., Kofuji, Y., Koch, P. M., Koyama, S., Kramer, M., Kramer, C., Krichbaum, T. P., Kuo, C. Y., Lauer, T. R., Lee, S. S., Levis, A., Li, Y. R., Li, Z., Lindqvist, M., Lico, R., Lindahl, G., Liu, J., Liu, K., Liuzzo, E., Lo, W. P., Lobanov, A. P., Loinard, L., Lonsdale, C., Lu, R. S., Macdonald, N. R., Mao, J., Marchili, N., Markoff, S., Marrone, D. P., Marscher, A. P., Martí-Vidal, I., Matsushita, S., Matthews, L. D., Medeiros, L., Menten, K. M., Mizuno, I., Mizuno, Y., Moran, J. M., Moriyama, K., Moscibrodzka, M., Müller, C., Musoke, G., Mejías, A. M., Nagai, H., Nagar, N. M., Nakamura, M., Natarajan, I., Nathanail, A., Neilsen, J., Neri, R., Ni, C., Noutsos, A., Nowak, M. A., Okino, H., Olivares, H., Ortiz-León, G. N., Oyama, T., Özel, F., Park, J., Patel, N., Pen, U. L., Pesce, D. W., Piétu, V., Plambeck, R., Popstefanija, A., Porth, O., Pötzl, F. M., Prather, B., Preciado-López, J. A., Psaltis, D., Pu, H. Y., Ramakrishnan, V., Rao, R., Rawlings, M. G., Raymond, A. W., Rezzolla, L., Ripperda, B., Roelofs, F., Rogers, A., Ros, E., Rose, M., Roshanineshat, A., Rottmann, H., Roy, A. L., Ruszczyk, C., Rygl, K. L. J., Sánchez, S., Sánchez-Arguelles, D., Sasada, M., Savolainen, T., Schloerb, F. P., Schuster, K. F., Shao, L., Shen, Z., Small, D., Sohn, B. W., Soohoo, J., Sun, H., Tazaki, F., Tetarenko, A. J., Tiede, P., Tilanus, R. P. J., Titus, M., Toma, K., Torne, P., Trent, T., Traianou, E., Trippe, S., Van Bemmel, I., Van Langevelde, H. J., Van Rossum, D. R., Wagner, J., Ward-Thompson, D., Wardle, J., Weintroub, J., Wex, N., Wharton, R., Wielgus, M., Wong, G. N., Wu, Q., Yoon, D., Young, A., Young, K., Younsi, Z., Yuan, F., Yuan, Y. F., Zensus, J. A., Zhao, G. Y. & Zhao, S. S., 1 May 2021, In: The Astrophysical Journal. 912, 1, 26 p., 35.

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  • The science case and challenges of spaceborne sub-millimeter interferometry: the study case of TeraHertz Exploration and Zooming-in for Astrophysics (THEZA)

    Gurvits, L. I., Paragi, Z., Amils, R. I., van Bemmel, I., Boven, P., Casasola, V., Conway, J., Davelaar, J., Díez-González, M. C., Falcke, H., Fender, R., Frey, S., Fromm, C. M., Gallego-Puyol, J. D., García-Miró, C., Garrett, M. A., Giroletti, M., Goddi, C., Gómez, J. L., van der Gucht, J., & 34 othersGuirado, J. C., Haiman, Z., Helmich, F., Hudson, B., Humphreys, E., Impellizzeri, V., Janssen, M., Johnson, M. D., Kovalev, Y. Y., Kramer, M., Lindqvist, M., Linz, H., Liuzzo, E., Lobanov, A. P., López-Fernández, I., Malo-Gómez, I., Masania, K., Mizuno, Y., Plavin, A. V., Rajan, R. T., Rezzolla, L., Roelofs, F., Ros, E., Rygl, K. L. J., Savolainen, T., Schuster, K., Venturi, T., Verkouter, H., de Vicente, P., Visser, P. N. A. M., Wiedner, M. C., Wielgus, M., Wiik, K. & Zensus, J. A., 2021, IAF Symposium on Ongoing and Near Future Space Astronomy and Solar-System Science Missions 2021 - Held at the 72nd International Astronautical Congress, IAC 2021. International Astronautical Federation (IAF), 29 p. (Proceedings of the International Astronautical Congress).

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  • THEZA: TeraHertz Exploration and Zooming-in for Astrophysics: An ESA Voyage 2050 White Paper

    Gurvits, L. I., Paragi, Z., Casasola, V., Conway, J., Davelaar, J., Falcke, H., Fender, R., Frey, S., Fromm, C. M., Garcia Miro, C., Garrett, M. A., Giroletti, M., Goddi, C., Gaomez, J-L., van der Gucht, J., Guirado, J. C., Haiman, Z., Helmich, F., Humphreys, E., Impellizzeri, V., & 15 othersKramer, M., Lindqvist, M., Linz, H., Liuzzo, E., Lobanov, A. P., Mizuno, Y., Rezzolla, L., Roelofs, F., Ros, E., Rygl, K. L. J., Savolainen, T., Schuster, K., Venturi, T., Wiedner, M. & Zensus, J. A., Jun 2021, In: Experimental Astronomy. 51, 3, p. 559-594 36 p.

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  • 2020

    180° rotations in the polarization angle for blazars

    Cohen, M. H. & Savolainen, T., 21 Apr 2020, In: Astronomy & Astrophysics. 636, 11 p., A79.

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