Search results

  • 2021

    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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    23 Citations (Scopus)
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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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    4 Citations (Scopus)
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  • Constraints on black-hole charges with the 2017 EHT observations of M87∗

    Event Horizon Telescope Collaboration, 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. & 31 others, Barrett, 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., 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., 20 May 2021, In: Physical Review D. 103, 10, 18 p., 104047.

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    11 Citations (Scopus)
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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

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

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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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    17 Citations (Scopus)
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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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    3 Citations (Scopus)
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  • Active galactic nuclei imaging programs of the RadioAstron mission

    Bruni, G., Savolainen, T., Gómez, J. L., Lobanov, A. P. & Kovalev, Y. Y., 15 Jan 2020, In: Advances in Space Research. 65, 2, p. 712-719 8 p.

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    4 Citations (Scopus)
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  • A Decade of Multiwavelength Observations of the TeV Blazar 1ES 1215+303: Extreme Shift of the Synchrotron Peak Frequency and Long-term Optical–Gamma-Ray Flux Increase

    Fermi Large Area Telescope Collaboration, VERITAS Collaboration, Ramazani, V. F., Hovatta, T., Savolainen, T., Lähteenmäki, A. & Tornikoski, M., 10 Mar 2020, In: Astrophysical Journal. 891, 2, 25 p., 170.

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    8 Citations (Scopus)
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  • Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution

    Kim, J. Y., Krichbaum, T. P., Broderick, A. E., Wielgus, M., Blackburn, L., Gómez, J. L., Johnson, M. D., Bouman, K. L., Chael, A., Akiyama, K., Jorstad, S., Marscher, A. P., Issaoun, S., Janssen, M., Chan, C. K., Savolainen, T., Pesce, D. W., Özel, F., Alberdi, A., Alef, W. & 331 others, Asada, K., Azulay, R., Baczko, A. K., Ball, D., Baloković, M., Barrett, J., Bintley, D., Boland, W., Bower, G. C., Bremer, M., Brinkerink, C. D., Brissenden, R., Britzen, S., Broguiere, D., Bronzwaer, T., Byun, D. Y., Carlstrom, J. E., Chatterjee, S., Chatterjee, K., Chen, M. T., Chen, Y., Cho, I., Christian, P., Conway, J. E., Cordes, J. M., Crew, G. B., Cui, Y., Davelaar, J., De Laurentis, M., Deane, R., Dempsey, J., Desvignes, G., Dexter, J., Doeleman, S. S., Eatough, R. P., Falcke, H., Fish, V. L., Fomalont, E., Fraga-Encinas, R., Friberg, P., Fromm, C. M., Galison, P., Gammie, C. F., García, R., Gentaz, O., Georgiev, B., Goddi, C., Gold, R., Gómez-Ruiz, A. I., Gu, M., Gurwell, M., Hada, K., Hecht, M. H., Hesper, R., Ho, L. C., Ho, P., Honma, M., Huang, C. W. L., Lei, H., Hughes, D. H., Ikeda, S., Inoue, M., James, D. J., Jannuzi, B. T., Jeter, B., Wu, J., Jimenez-Rosales, A., Jung, T., Karami, M., Karuppusamy, R., Kawashima, T., Keating, G. K., Kettenis, M., Kim, J., Kim, J., Kino, M., Koay, J. Y., Koch, P. M., Koyama, S., Kramer, M., Kramer, C., Kuo, C. Y., Lauer, T. R., Lee, S. S., Li, Y. R., Li, Z., Lindqvist, M., Lico, R., Kuo, L., Liuzzo, E., Lo, W. P., Lobanov, A. P., Loinard, L., Lonsdale, C., Lu, R. S., Macdonald, N. R., Mao, J., Markoff, S., Marrone, D. P., Martí-Vidal, I., Matsushita, S., Matthews, L. D., Medeiros, L., Menten, K. M., Mizuno, Y., Mizuno, I., Moran, J. M., Moriyama, K., Moscibrodzka, M., Musoke, G., Müller, C., Nagai, H., Nagar, N. M., Nakamura, M., Narayan, R., Narayanan, G., Natarajan, I., Neri, R., Ni, C., Noutsos, A., Okino, H., Olivares, H., Ortiz-León, G. N., Oyama, T., Palumbo, D. C. M., Park, J., Patel, N., Pen, U. L., Piétu, V., Plambeck, R., Popstefanija, A., Porth, O., Ben, P., 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., Ryan, B. R., Rygl, K. L. J., Sánchez, S., Sánchez-Arguelles, D., Sasada, M., Schloerb, F. P., Schuster, K. F., Shao, L., Shen, Z., Small, D., Sohn, B. W., Soohoo, J., Tazaki, F., Tiede, P., Tilanus, R. P. J., Titus, M., Toma, K., Torne, P., Trent, T., Traianou, E., Trippe, S., Tsuda, S., Van Bemmel, I., Van Langevelde, H. J., Van Rossum, D. R., Jan, W., Wardle, J., Ward-Thompson, D., Weintroub, J., Wex, N., Wharton, R., Wong, G. N., Wu, Q., Yoon, D., Young, A., Young, K., Younsi, Z., Feng, Y., Yuan, Y. F., Zensus, J. A., Zhao, G., Zhao, S. S., Zhu, Z., Algaba, J. C., Allardi, A., Amestica, R., Anczarski, J., Bach, U., Baganoff, F. K., Beaudoin, C., Benson, B. A., Berthold, R., Blanchard, J. M., Blundell, R., Bustamente, S., Cappallo, R., Castillo-Domínguez, E., Chang, C. C., Chang, S. H., Chang, S. C., Chen, C. C., Chilson, R., Chuter, T. C., Rosado, R. C., Coulson, I. M., Crowley, J., Derome, M., Dexter, M., Dornbusch, S., Dudevoir, K. A., Dzib, S. A., Eckart, A., Eckert, C., Erickson, N. R., Everett, W. B., Faber, A., Farah, J. R., Fath, V., Folkers, T. W., Forbes, D. C., Freund, R., Gale, D. M., Feng, G., Geertsema, G., Graham, D. A., Greer, C. H., Grosslein, R., Gueth, F., Haggard, D., Halverson, N. W., Han, C. C., Han, K. C., Hao, J., Hasegawa, Y., Henning, J. W., Hernández-Gómez, A., Herrero-Illana, R., Heyminck, S., Hirota, A., Hoge, J., Huang, Y. D., Violette Impellizzeri, C. M., Jiang, H., John, D., Kamble, A., Keisler, R., Kimura, K., Kono, Y., Kubo, D., Kuroda, J., Lacasse, R., Laing, R. A., Leitch, E. M., Li, C. T., Lin, L. C. C., Liu, C. T., Liu, K. Y., Lu, L. M., Marson, R. G., Martin-Cocher, P. L., Massingill, K. D., Matulonis, C., Mccoll, M. P., Mcwhirter, S. R., Messias, H., Zheng, M. Z., Michalik, D., Montaña, A., Montgomerie, W., Mora-Klein, M., Muders, D., Nadolski, A., Navarro, S., Neilsen, J., Nguyen, C. H., Nishioka, H., Norton, T., Nowak, M. A., Nystrom, G., Ogawa, H., Oshiro, P., Parsons, H., Juan, P., Phillips, N. M., Poirier, M., Pradel, N., Primiani, R. A., Raffin, P. A., Rahlin, A. S., Reiland, G., Risacher, C., Ruiz, I., Sáez-Madaín, A. F., Sassella, R., Schellart, P., Shaw, P., Silva, K. M., Shiokawa, H., Smith, D. R., Snow, W., Souccar, K., Sousa, D., Sridharan, T. K., Srinivasan, R., Stahm, W., Stark, A. A., Story, K., Timmer, S. T., Vertatschitsch, L., Walther, C., Wei, T. S., Whitehorn, N., Whitney, A. R., Woody, D. P., Wouterloot, J. G. A., Wright, M., Yamaguchi, P., Yu, C. Y., Zeballos, M., Zhang, S. & Ziurys, L., 1 Aug 2020, In: Astronomy and Astrophysics. 640, 21 p., 69.

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  • Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole

    Event Horizon Telescope Collaboration, 1 Oct 2020, In: Physical Review Letters. 125, 14, 9 p., 141104.

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    58 Citations (Scopus)
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  • Joint XMM-Newton and NuSTAR observations of the reflection spectrum of III Zw 2

    Chamani, W., Koljonen, K. & Savolainen, T., 30 Mar 2020, In: Astronomy and Astrophysics. 635, 11 p., A172.

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  • Monitoring the Morphology of M87* in 2009-2017 with the Event Horizon Telescope

    Event Horizon Telescope Collaboration, 20 Sep 2020, In: Astrophysical Journal. 901, 1, 28 p., 67.

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    12 Citations (Scopus)
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  • Multiband RadioAstron space VLBI imaging of the jet in quasar S5 0836+710

    Vega-García, L., Lobanov, A. P., Perucho, M., Bruni, G., Ros, E., Anderson, J. M., Agudo, I., Davis, R., Gómez, J. L., Kovalev, Y. Y., Krichbaum, T. P., Lisakov, M. M., Savolainen, T., Schinzel, F. K. & Zensus, J. A., 1 Sep 2020, In: Astronomy & Astrophysics. 641, 16 p., A40.

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  • SYMBA: An end-to-end VLBI synthetic data generation pipeline: Simulating Event Horizon Telescope observations of M 87

    Event Horizon Telescope Collaboration, Ramakrishnan, V., Savolainen, T. & Zhao, S., 1 Apr 2020, In: Astronomy and Astrophysics. 636, 19 p., 5.

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  • THEMIS: A Parameter Estimation Framework for the Event Horizon Telescope

    Broderick, A. E., Gold, R., Karami, M., Preciado-López, J. A., Tiede, P., Pu, H. Y., Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A. K., Baloković, M., Barrett, J., Bintley, D., Blackburn, L., Boland, W., Bouman, K. L., Bower, G. C., Bremer, M. & 172 others, Brinkerink, C. D., Brissenden, R., Britzen, S., Broguiere, D., Bronzwaer, T., Byun, D. Y., Carlstrom, J. E., Chael, A., Chatterjee, S., Chatterjee, K., Chen, M. T., Chen, Y., Cho, I., Conway, J. E., Cordes, J. M., Crew, G. B., Cui, Y., Davelaar, J., De Laurentis, M., Deane, R., Dempsey, J., Desvignes, G., Doeleman, S. S., Eatough, R. P., Falcke, H., Fish, V. L., Fomalont, E., Fraga-Encinas, R., Friberg, P., Fromm, C. M., Galison, P., Gammie, C. F., García, R., Gentaz, O., Georgiev, B., Goddi, C., Gómez, J. L., Gu, M., Gurwell, M., Hada, K., Hecht, M. H., Hesper, R., Ho, L. C., Ho, P., Honma, M., Huang, C. W. L., Huang, L., Hughes, D. H., Inoue, M., Issaoun, S., James, D. J., Janssen, M., Jeter, B., Jiang, W., Jiménez-Rosales, A., Johnson, M. D., Jorstad, S., Jung, T., Karuppusamy, R., Kawashima, T., Keating, G. K., Kettenis, M., Kim, J. Y., Kim, J., Kino, M., Koay, J. Y., Koch, P. M., Koyama, S., Kramer, M., Kramer, C., Krichbaum, T. P., Kuo, C. Y., Lee, S. S., Li, Y. R., Li, Z., Lindqvist, M., Lico, R., Liu, K., Liuzzo, E., Lo, W. P., Lobanov, A. P., Loinard, L., Lonsdale, C., Lu, R. S., MacDonald, N. R., Mao, J., Marscher, A. P., Martí-Vidal, I., Matsushita, S., Matthews, L. D., Menten, K. M., Mizuno, Y., Mizuno, I., Moran, J. M., Moriyama, K., Moscibrodzka, M., Müller, C., Nagai, H., Nagar, N. M., Nakamura, M., Narayan, R., Narayanan, G., Natarajan, I., Neri, R., Ni, C., Noutsos, A., Okino, H., Olivares, H., Ortiz-León, G. N., Oyama, T., Palumbo, D. C. M., Park, J., Pen, U. L., Pesce, D. W., Piétu, V., Plambeck, R., Popstefanija, A., Porth, O., Prather, B., Ramakrishnan, V., Rao, R., Rawlings, M. G., Rezzolla, L., Ripperda, B., Roelofs, F., Rogers, A., Ros, E., Rose, M., Rottmann, H., Ruszczyk, C., Ryan, B. R., 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., Tazaki, F., Tilanus, R. P. J., Titus, M., Toma, K., Torne, P., Traianou, E., Trippe, S., Tsuda, S., Van Bemmel, I., Van Langevelde, H. J., Van Rossum, D. R., Wagner, J., 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., Zhao, S. S. & Zhu, Z., 10 Jul 2020, In: Astrophysical Journal. 897, 2, 38 p., 139.

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  • Verification of Radiative Transfer Schemes for the EHT

    Event Horizon Telescope Collaboration, 10 Jul 2020, In: Astrophysical Journal. 897, 2, 21 p., 148.

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  • 2019

    First M87 Event Horizon Telescope Results. I. the Shadow of the Supermassive Black Hole

    Event Horizon Telescope Collaboration & Savolainen, T., 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 17 p., 1.

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  • First M87 Event Horizon Telescope Results. II. Array and Instrumentation

    Event Horizon Telescope Collaboration & Savolainen, T., 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 28 p., 2.

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  • First M87 Event Horizon Telescope Results. III. Data Processing and Calibration

    Event Horizon Telescope Collaboration & Savolainen, T., 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 32 p., 3.

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  • First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole

    Event Horizon Telescope Collaboration & Savolainen, T., 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 52 p., 4.

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  • First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring

    Event Horizon Telescope Collaboration & Savolainen, T., 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 31 p., 5.

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  • First M87 Event Horizon Telescope Results. VI. the Shadow and Mass of the Central Black Hole

    Event Horizon Telescope Collaboration & Savolainen, T., 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 44 p., 6.

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  • Magnetic field at a jet base: extreme Faraday rotation in 3C 273 revealed by ALMA

    Hovatta, T., O'Sullivan, S., Marti-Vidal, I., Savolainen, T. & Tchekhovskoy, A., 1 Mar 2019, In: Astronomy & Astrophysics. 623, 9 p., A111.

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  • MOJAVE. XVII. Jet Kinematics and Parent Population Properties of Relativistically Beamed Radio-loud Blazars

    Lister, M. L., Homan, D. C., Hovatta, T., Kellermann, K., Kiehlmann, S., Kovalev, Y. Y., Max-Moerbeck, W., Pushkarev, A. B., Readhead, A. C. S., Ros, E. & Savolainen, T., 20 Mar 2019, In: Astrophysical Journal. 874, 1, 19 p., 43.

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