Research output
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2019
First M87 Event Horizon Telescope Results. III. Data Processing and Calibration
Savolainen, T. & Event Horizon Telescope Collaboration, 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 32 p., 3.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile689 Citations (Web of Science)193 Downloads (Pure) -
First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
Savolainen, T. & Event Horizon Telescope Collaboration, 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 52 p., 4.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile988 Citations (Web of Science)209 Downloads (Pure) -
First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
Savolainen, T. & Event Horizon Telescope Collaboration, 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 31 p., 5.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile986 Citations (Web of Science)205 Downloads (Pure) -
First M87 Event Horizon Telescope Results. VI. the Shadow and Mass of the Central Black Hole
Savolainen, T. & Event Horizon Telescope Collaboration, 10 Apr 2019, In: Astrophysical Journal Letters. 875, 1, 44 p., 6.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1267 Citations (Scopus)198 Downloads (Pure) -
Flare Activity of Blazar AO 0235+164
Volvach, A. E., Volvach, L. N., Larionov, M. G., Lähteenmäki, A., Tornikoski, M., Tammi, J., Järvelä, E., Vera, R. J. C., Chamani, W. & Enestam, S., 1 Mar 2019, In: Cosmic Research. 57, 2, p. 85-90 6 p.Research output: Contribution to journal › Article › Scientific › peer-review
3 Citations (Web of Science) -
Investigating the multiwavelength behaviour of the flat spectrum radio quasar CTA 102 during 2013-2017
Lähteenmäki, A., Tammi, J., Tornikoski, M., Hovatta, T., WEBT Collaboration & OVRO Team, Dec 2019, In: Monthly Notices of the Royal Astronomical Society. 490, 4, p. 5300-5316 17 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile26 Citations (Scopus)73 Downloads (Pure) -
Long term variability and correlation study of the blazar 3C 454.3 in radio, NIR and optical wavebands
Sarkar, A., Chitnis, V. R., Gupta, A. C., Gaur, H., Patel, S. R., Wiita, P. J., Volvach, A. E., Tornikoski, M., Chamani, W., Enestam, S., Lähteenmäki, A., Tammi, J., Vera Rodríguez, R. & Volvach, L. N., 20 Dec 2019, In: The Astrophysical Journal. 887, 2, 185.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile33 Citations (Scopus)169 Downloads (Pure) -
Luminous red novae : Stellar mergers or giant eruptions?
Pastorello, A., Mason, E., Taubenberger, S., Fraser, M., Cortini, G., Tomasella, L., Botticella, M. T., Elias-Rosa, N., Kotak, R., Smartt, S. J., Benetti, S., Cappellaro, E., Turatto, M., Tartaglia, L., Djorgovski, S. G., Drake, A. J., Berton, M., Briganti, F., Brimacombe, J. & Bufano, F. & 19 others, , 24 Sept 2019, In: Astronomy & Astrophysics. 630, 30 p., 75.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile111 Citations (Web of Science)89 Downloads (Pure) -
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.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile34 Citations (Web of Science)183 Downloads (Pure) -
Mapping the narrow-line Seyfert 1 galaxy 1H 0323+342
Foschini, L., Ciroi, S., Berton, M., Vercellone, S., Romano, P. & Braito, V., 14 Sept 2019, In: Universe. 5, 9, 199.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile9 Citations (Scopus)154 Downloads (Pure) -
Modelling the compact jet in MAXI J1836-194 with disc-driven shocks
Peault, M., Malzac, J., Coriat, M., Russell, T. D., Koljonen, K. I. I., Belmont, R., Corbel, S., Drappeau, S., Ferreira, J., Petrucci, P. O., Rodriguez, J. & Russell, D. M., 11 Jan 2019, In: Monthly Notices of the Royal Astronomical Society. 482, 2, p. 2447-2458 12 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile16 Citations (Scopus)179 Downloads (Pure) -
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: The Astrophysical Journal. 874, 1, 19 p., 43.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile224 Citations (Scopus)306 Downloads (Pure) -
Observatory science with eXTP
in ’t Zand, J. J. M., Bozzo, E., Qu, J. L., Li, X. D., Amati, L., Chen, Y., Donnarumma, I., Doroshenko, V., Drake, S. A., Hernanz, M., Jenke, P. A., Maccarone, T. J., Mahmoodifar, S., de Martino, D., De Rosa, A., Rossi, E. M., Rowlinson, A., Sala, G., Stratta, G. & Tauris, T. M. & 30 others, , 1 Feb 2019, In: Science China: Physics, Mechanics and Astronomy. 62, 2, 42 p., 029506.Research output: Contribution to journal › Review Article › peer-review
Open AccessFile76 Citations (Scopus)122 Downloads (Pure) -
Photoionization Emission Models for the Cyg X-3 X-Ray Spectrum
Kallman, T., McCollough, M., Koljonen, K., Liedahl, D., Miller, J., Paerels, F., Pooley, G., Sako, M., Schulz, N., Trushkin, S. & Corrales, L., 20 Mar 2019, In: The Astrophysical Journal. 874, 1, 24 p., 51.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile26 Citations (Scopus)206 Downloads (Pure) -
Relativistic Jets of Blazars
Hovatta, T. & Lindfors, E., 2019, In: New Astronomy Reviews. 87, 29 p., 101541.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile91 Citations (Web of Science)354 Downloads (Pure) -
RoboPol: A four-channel optical imaging polarimeter
Ramaprakash, A. N., Rajarshi, C. V., Das, H. K., Khodade, P., Modi, D., Panopoulou, G., Maharana, S., Blinov, D., Angelakis, E., Casadio, C., Fuhrmann, L., Hovatta, T., Kiehlmann, S., King, O. G., Kylafis, N., Kougentakis, A., Kus, A., Mahabal, A., Marecki, A. & Myserlis, I. & 13 others, , May 2019, In: Monthly Notices of the Royal Astronomical Society. 485, 2, p. 2355-2366 12 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile59 Citations (Web of Science)127 Downloads (Pure) -
Science with the Cherenkov Telescope Array
Tornikoski, M. & The CTA Consortium, 2019, World Scientific. 364 p.Research output: Book/Report › Anthology › Scientific › peer-review
Open Access -
SN 2017gmr: An Energetic Type II-P Supernova with Asymmetries
Andrews, J. E., Sand, D. J., Valenti, S., Smith, N., Dastidar, R., Sahu, D. K., Misra, K., Singh, A., Hiramatsu, D., Brown, P. J., Hosseinzadeh, G., Wyatt, S., Vinko, J., Anupama, G. C., Arcavi, I., Ashall, C., Benetti, S., Berton, M., Bostroem, K. A. & Bulla, M. & 60 others, , 1 Nov 2019, In: The Astrophysical Journal. 885, 1, 43.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile58 Citations (Scopus)100 Downloads (Pure) -
Studying Black Holes on Horizon Scales with VLBI Ground Arrays
Blackburn, L., Doeleman, S., Dexter, J., Gómez, J. L., Johnson, M. D., Palumbo, D. C., Weintroub, J., Farah, J. R., Fish, V., Loinard, L., Lonsdale, C., Narayanan, G., Patel, N. A., Pesce, D. W., Raymond, A., Tilanus, R., Wielgus, M., Akiyama, K., Bower, G. & Broderick, A. & 16 others, , Sept 2019, arXiv.org.Research output: Working paper › Scientific
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The beamed jet and quasar core of the distant blazar 4C 71.07
Raiteri, C. M., Villata, M., Carnerero, M., Acosta-Pulido, J. A., Mirzaqulov, D. O., Larionov, V. M., Romano, P., Vercellone, S., Agudo, I., Arkharov, A. A., Bach, U., Bachev, R., Baitieri, S., Borman, G. A., Boschin, W., Bozhilov, V., Butuzova, M. S., Calcidese, P., Carosati, D. & Casadio, C. & 44 others, , Oct 2019, In: Monthly Notices of the Royal Astronomical Society. 489, 2, p. 1837-1849 13 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile10 Citations (Web of Science)116 Downloads (Pure) -
The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project
Savolainen, T. & Event Horizon Telescope Collaboration, Aug 2019, In: Astrophysical Journal Supplement Series. 243, 2, 40 p., 26.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile272 Citations (Web of Science)211 Downloads (Pure) -
The evolution of luminous red nova at 2017jfs in NGC4470?
Pastorello, A., Chen, T. W., Cai, Y. Z., Morales-Garoffolo, A., Cano, Z., Mason, E., Barsukova, E. A., Benetti, S., Berton, M., Bose, S., Bufano, F., Callis, E., Cannizzaro, G., Cartier, R., Chen, P., Dong, S., Dyrbye, S., Elias-Rosa, N., Flörs, A. & Fraser, M. & 26 others, , 1 Jan 2019, In: Astronomy & Astrophysics. 625, 201935511.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile28 Citations (Scopus)137 Downloads (Pure) -
The Interacting Late-type Host Galaxy of the Radio-loud Narrow-line Seyfert 1 IRAS 20181-2244
Berton, M., Congiu, E., Ciroi, S., Komossa, S., Frezzato, M., Mille, F. D., Antón, S., Antonucci, R., Caccianiga, A., Coppi, P., Jarvela, E., Kotilainen, J., Lahteenmaki, A., Mathur, S., Chen, S., Cracco, V., Mura, G. L. & Rafanelli, P., 1 Feb 2019, In: Astronomical Journal. 157, 2, 7 p., 48.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile25 Citations (Scopus)204 Downloads (Pure) -
The magnetic field structure in CTA 102 from high-resolution mm-VLBI observations during the flaring state in 2016-2017
Casadio, C., Marscher, A. P., Jorstad, S. G., Blinov, D. A., Macdonald, N. R., Krichbaum, T. P., Boccardi, B., Traianou, E., Gomez, J. L., Agudo, I., Sohn, B. W., Bremer, M., Hodgson, J., Kallunki, J., Kim, J. Y., Williamson, K. E. & Zensus, J. A., 13 Feb 2019, In: Astronomy & Astrophysics. 622, 12 p., 158.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile29 Citations (Web of Science)163 Downloads (Pure) -
The presence of interstellar scintillation in the 15 GHz interday variability of 1158 OVRO-monitored blazars
Koay, J. Y., Jauncey, D. L., Hovatta, T., Kiehlmann, S., Bignall, H. E., Max-Moerbeck, W., Pearson, T. J., Readhead, A. C. S., Reeves, R., Reynolds, C. & Vedantham, H., Nov 2019, In: Monthly Notices of the Royal Astronomical Society. 489, 4, p. 5365-5380 16 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile10 Citations (Scopus)146 Downloads (Pure) -
The Radio/X-Ray Correlation in X-Ray Binaries - Insights from a Hard X-Ray Perspective
Koljonen, K. I. I. & Russell, D. M., 20 Jan 2019, In: The Astrophysical Journal. 871, 1, 8 p., 26.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile24 Citations (Web of Science)243 Downloads (Pure) -
The Solar Radius at 37 GHz through Cycles 22 to 24
Selhorst, C. L., Kallunki, J., Gimènez de Castro, C. G., Valio, A. & Costa, J. E. R., 1 Nov 2019, In: Solar Physics. 294, 12, 175.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access5 Citations (Scopus) -
2018
A catalog of narrow-line Seyfert 1 galaxies in the southern hemisphere
Chen, S., Berton, M., la Mura, G., Congiu, E., Cracco, V., Foschini, L., Fan, J. H., Ciroi, S., Rafanelli, P. & Bastieri, D., 1 Jan 2018, In: POS Proceedings of Science. 328Research output: Contribution to journal › Conference article › Scientific › peer-review
Open AccessFile102 Downloads (Pure) -
A wide and collimated radio jet in 3C84 on the scale of a few hundred gravitational radii
Giovannini, G., Savolainen, T., Orienti, M., Nakamura, M., Nagai, H., Kino, M., Giroletti, M., Hada, K., Bruni, G., Kovalev, Y. Y., Anderson, J. M., D'Ammando, F., Hodgson, J., Honma, M., Krichbaum, T. P., Lee, S. S., Lico, R., Lisakov, M. M., Lobanov, A. P. & Petrov, L. & 5 others, , 1 Jun 2018, In: Nature Astronomy. 2, 6, p. 472-477 6 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile138 Citations (Scopus)182 Downloads (Pure) -
A Wildly Flickering Jet in the Black Hole X-Ray Binary MAXI J1535-571
Cristina Baglio, M., Russell, D. M., Casella, P., Al Noori, H., Al Yazeedi, A., Belloni, T., Buckley, D. A. H., Cadolle Bel, M., Ceccobello, C., Corbel, S., Coti Zelati, F., Díaz Trigo, M., Fender, R. P., Gallo, E., Gandhi, P., Homan, J., Koljonen, K. I. I., Lewis, F., Maccarone, T. J. & Malzac, J. & 12 others, , 10 Nov 2018, In: The Astrophysical Journal. 867, 2, 114.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile32 Citations (Scopus)161 Downloads (Pure) -
Characteristics of the Flare Phenomenon in Blazar AO0235+164 in Gamma, Optical, and Radio Bands
Bychkova, V. S., Volvach, A. E., Volvach, L. N., Kardashev, N. S., Larionov, M. G., Vlasyuk, V. V., Spiridonova, O. I., Lähteenmäki, A., Tornikoski, M., Tammi, J., Järvelä, E., Vera, R. J. C., Chamani, W. & Enestam, S., 1 Jul 2018, In: Astrophysical Bulletin. 73, 3, p. 293-297 5 p.Research output: Contribution to journal › Article › Scientific › peer-review
2 Citations (Scopus) -
Constraints on Particles and Fields from Full Stokes Observations of AGN
Homan, D. C., Hovatta, T., Kovalev, Y. Y., Lister, M. L., Pushkarev, A. B. & Savolainen, T., 29 Jan 2018, In: Galaxies. 6, 1, 8 p., 17.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile6 Citations (Scopus)209 Downloads (Pure) -
Detection of persistent VHE gamma-ray emission from PKS 1510-089 by the MAGIC telescopes during low states between 2012 and 2017
Tornikoski, M., Lähteenmäki, A., Tammi, J., Ramakrishnan, V., MAGIC Collaboration & Fermi Large Area Telescope Collaboration, 2018, In: Astronomy & Astrophysics. 619, 12 p., A159.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile40 Citations (Scopus)114 Downloads (Pure) -
Detection of the blazar S4 0954+65 at very-high-energy with the MAGIC telescopes during an exceptionally high optical state
MAGIC Collaboration & Fermi Large Area Telescope Collaboration, 1 Sept 2018, In: Astronomy & Astrophysics. 617, A30.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile20 Citations (Web of Science)137 Downloads (Pure) -
Extreme HBL behavior of Markarian 501 during 2012
MAGIC Collaboration & VERITAS Collaboration, 1 Dec 2018, In: Astronomy & Astrophysics. 620, A181.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile74 Citations (Scopus)185 Downloads (Pure) -
Far-infrared photometry of OJ 287 with the Herschel Space Observatory
Kidger, M., Zola, S., Valtonen, M., Lähteenmäki, A., Järvelä, E., Tornikoski, M., Tammi, J., Liakos, A. & Poyner, G., 1 Feb 2018, In: Astronomy & Astrophysics. 610, 7 p., 74.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile7 Citations (Scopus)226 Downloads (Pure) -
Fe II velocity shifts in optical spectra of type 1 AGN
Bon, E., Marziani, P., Berton, M., Bon, N., Antonucci, R., Gaskell, M. & Ferland, G., 1 Jan 2018, In: POS Proceedings of Science. 328Research output: Contribution to journal › Conference article › Scientific › peer-review
Open AccessFile87 Downloads (Pure) -
Forty years of solar radio observations at Metsähovi Radio Observatory
Kallunki, J., Tornikoski, M., Tammi, J., Kinnunen, E., Korhonen, K., Kesäläinen, S. & Arkko, O., 1 Feb 2018, In: Astronomische Nachrichten. 339, 2-3, p. 204-211 8 p.Research output: Contribution to journal › Article › Scientific › peer-review
13 Citations (Scopus) -
Host galaxies of jetted narrow-line Seyfert 1 galaxies
Järvelä, E., Lähteenmäki, A. & Berton, M., 1 Jan 2018, In: POS Proceedings of Science. 328Research output: Contribution to journal › Conference article › Scientific › peer-review
Open AccessFile105 Downloads (Pure) -
Long-term optical monitoring of TeV emitting blazars: I. Data analysis
Nilsson, K., Lindfors, E., Takalo, L. O., Reinthal, R., Berdyugin, A., Sillanpää, A., Ciprini, S., Halkola, A., Heinämäki, P., Hovatta, T., Kadenius, V., Nurmi, P., Ostorero, L., Pasanen, M., Rekola, R., Saarinen, J., Sainio, J., Tuominen, T., Villforth, C. & Vornanen, T. & 1 others, , 1 Dec 2018, In: Astronomy & Astrophysics. 620, A185.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile138 Citations (Scopus)180 Downloads (Pure) -
Measurements of the Quiet-Sun Level Brightness Temperature at 8 mm
Kallunki, J. & Tornikoski, M., 1 Nov 2018, In: Solar Physics. 293, 11, p. 156 156.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile17 Citations (Scopus)167 Downloads (Pure) -
Millimetri, senttimetri, desimetri, metri
Tammi, J., Apr 2018, In: Tähdet ja Avaruus. 3, p. 49-49 1 p.Translated title of the contribution :Millimetre, decimetre, centimetre, metre Research output: Contribution to journal › Article › General public
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Models of optical emission lines to investigate narrow-line Seyfert 1 galaxies in spectroscopic databases
la Mura, G., Bastieri, D., Berton, M., Chen, S., Ciroi, S., Congiu, E., Cracco, V., Fan, J. H. & Rafanelli, P., 1 Jan 2018, In: POS Proceedings of Science. 328Research output: Contribution to journal › Conference article › Scientific › peer-review
Open AccessFile67 Downloads (Pure) -
MOJAVE. XV. VLBA 15 GHz Total Intensity and Polarization Maps of 437 Parsec-scale AGN Jets from 1996 to 2017
Lister, M. L., Aller, M. F., Aller, H. D., Hodge, M. A., Homan, D. C., Kovalev, Y. Y., Pushkarev, A. B. & Savolainen, T., 1 Jan 2018, In: Astrophysical Journal Supplement Series. 234, 1, 12.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile269 Citations (Scopus)304 Downloads (Pure) -
MOJAVE XVI: Multiepoch Linear Polarization Properties of Parsec-scale AGN Jet Cores
Hodge, M. A., Lister, M. L., Aller, M. F., Aller, H. D., Kovalev, Y. Y., Pushkarev, A. B. & Savolainen, T., 1 Aug 2018, In: The Astrophysical Journal. 862, 2, 151.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile34 Citations (Web of Science)216 Downloads (Pure) -
Multi-wavelength characterization of the blazar S5 0716+714 during an unprecedented outburst phase
MAGIC Collaboration, Fermi Large Area Telescope Collaboration & MWL Collaborators , 1 Nov 2018, In: Astronomy & Astrophysics. 619, A45.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile41 Citations (Web of Science)169 Downloads (Pure) -
Multiwavelength Observations of the Blazar BL Lacertae : A New Fast TeV Gamma-Ray Flare
Abeysekara, A. U., Benbow, W., Bird, R., Brantseg, T., Brose, R., Buchovecky, M., Buckley, J. H., Bugaev, V., Connolly, M. P., Cui, W., Daniel, M. K., Falcone, A., Feng, Q., Finley, J. P., Fortson, L., Furniss, A., Gillanders, G. H., Gunawardhana, I., Hütten, M. & Hanna, D. & 58 others, , 1 Apr 2018, In: The Astrophysical Journal. 856, 2, 14 p., 95.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile37 Citations (Scopus)192 Downloads (Pure) -
Narrow-line Seyfert 1 galaxies - Observational and statistical analysis
Järvelä, E., 2018, Aalto University. 280 p.Research output: Thesis › Doctoral Thesis › Collection of Articles
Open Access -
Near-infrared morphologies of the host galaxies of narrow-line Seyfert 1 galaxies
Järvelä, E., Lähteenmäki, A. & Berton, M., 1 Nov 2018, In: Astronomy & Astrophysics. 619, A69.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile43 Citations (Scopus)421 Downloads (Pure) -
Optical Precursors to Black Hole X-Ray Binary Outbursts: An Evolving Synchrotron Jet Spectrum in Swift J1357.2-0933
Russell, D. M., Qasim, A. A., Bernardini, F., Plotkin, R. M., Lewis, F., Koljonen, K. I. I. & Yang, Y. J., 10 Jan 2018, In: The Astrophysical Journal. 852, 2, 7 p., 90.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile20 Citations (Web of Science)123 Downloads (Pure)