Talvikki Hovatta
talvikki.hovatta@utu.fi Vesilinnantie 5 Turku ORCID identifier: https://orcid.org/0000-0002-2024-8199 |
astrophysics; radio astronomy; active galaxies; relativistic jets
I started as a researcher in the Turku Collegium of Science and Medicine in September 2016. I obtained my PhD in 2009 from Helsinki University of Technology (now Aalto University) on the topic Radio variability of active galactic nuclei: analysis of long-term multifrequency data. I then worked as a postdoctoral research at Purdue University USA (2009-2011) and California Institute of Technology USA (2011-2014). I moved back to Finland in 2014 to work as Academy of Finland postdoctoral fellow at Aalto University, from where I moved to Tuorla Observatory when starting in the collegium researcher position. Since September 2018 I have been working as an Academy of Finland Research Fellow at the Finnish Centre for Astronomy with ESO.
My main research interest is in active galaxies and their relativistic plasma jets. In my research, I use observations at all wavelengths from radio to very-high-energy gamma rays. At the moment I'm especially interested in magnetic fields in the plasma jets, and how they affect the jet formation and radiation. I use polarization observations in the radio and optical wavelengths to study the magnetic field structures in the jets. For example, I have studied the magnetic fields around jets using millimeter-wavelength observations from the ALMA observatory. I'm also involved in several international research projects where the jets of active galaxies are studied in multiple wavelengths. Recently, I expanded my research to multimessenger astrophysics by studying the connection between the radio emission of active galaxies and the arrival times of high-energy neutrinos.
I teach in two Master level courses "Radio Astronomy" and "Active Galactic Nuclei". I also advice B.Sc., M.Sc., and Post graduate students.
- The Great Markarian 421 Flare of 2010 February: Multiwavelength Variability and Correlation Studies (2020)
- Astrophysical Journal
(A1 Refereed original research article in a scientific journal) - Unraveling the Complex Behavior of Mrk 421 with Simultaneous X-Ray and VHE Observations during an Extreme Flaring Activity in 2013 April* (2020)
- Astrophysical Journal Supplement
(A1 Refereed original research article in a scientific journal) - A fast, very-high-energy gamma-ray flare from BL Lacertae during a period of multi-wavelength activity in June 2015 (2019)
- Astronomy and Astrophysics
(A1 Refereed original research article in a scientific journal) - Introduction to CTA Science (2019) Science with the Cherenkov Telescope Array Acharya BS, Agudo I, Al Samarai I, Alfaro R, Alfaro J, Alispach C, Batista RA, Amans JP, Amato E, Ambrosi G, Antolini E, Antonelli LA, Aramo C, Araya M, Armstrong T, Arqueros F, Arrabito L, Asano K, Ashley M, Backes M, Balazs C, Balbo M, Ballester O, Ballet J, Bamba A, Barkov M, de Almeida UB, Barrio JA, Bastieri D, Becherini Y, Belfiore A, Benbow W, Berge D, Bernardini E, Bernardini MG, Bernardos M, Bernlohr K, Bertucci B, Biasuzzi B, Bigongiari C, Biland A, Bissaldi E, Biteau J, Blanch O, Blazek J, Boisson C, Bolmont J, Bonanno G, Bonardi A, Bonavolonta C, Bonnoli G, Bosnjak Z, Bottcher M, Braiding C, Bregeon J, Brill A, Brown AM, Brun P, Brunetti G, Buanes T, Buckley J, Bugaev V, Buhler R, Bulgarelli A, Bulik T, Burton M, Burtovoi A, Busetto G, Canestrari R, Capalbi M, Capitanio F, Caproni A, Caraveo P, Cardenas V, Carlile C, Carosi R, Carquin E, Carr J, Casanova S, Cascone E, Catalani F, Catalano O, Cauz D, Cerruti M, Chadwick P, Chaty S, Chaves RCG, Chen A, Chen X, Chernyakova M, Chikawa M, Christov A, Chudoba J, Cieslar M, Coco V, Colafrancesco S, Colin P, Conforti V, Connaughton V, Conrad J, Contreras JL, Cortina J, Costa A, Costantini H, Cotter G, Covino S, Crocker R, Cuadra J, Cuevas O, Cumani P, D'Ai A, D'Ammando F, D'Avanzo P, D'Urso D, Daniel M, Davids I, Dawson B, Dazzi F, De Angelis A, dos Anjos RD, De Cesare G, De Franco A, Dal Pino EMD, de la Calle I, Lopez RD, De Lotto B, De Luca A, De Lucia M, de Naurois M, Wilhelmi ED, De Palma F, De Persio F, de Souza V, Deil C, Del Santo M, Delgado C, della Volpe D, Di Girolamo T, Di Pierro F, Di Venere L, Diaz C, Dib C, Diebold S, Djannati-Atai A, Dominguez A, Prester DD, Dorner D, Doro M, Drass H, Dravins D, Dubus G, Dwarkadas VV, Ebr J, Eckner C, Egberts K, Einecke S, Ekoume TRN, Elsasser D, Ernenwein JP, Espinoza C, Evoli C, Fairbairn M, Falceta-Goncalves D, Falcone A, Farnier C, Fasola G, Fedorova E, Fegan S, Fernandez-Alonso M, Fernandez-Barral A, Ferrand G, Fesquet M, Filipovic M, Fioretti V, Fontaine G, Fornasa M, Fortson L, Coromina LF, Fruck C, Fujita Y, Fukazawa Y, Funk S, Fussling M, Gabici S, Gadola A, Gallant Y, Garcia B, Lopez RG, Garczarczyk M, Gaskins J, Gasparetto T, Gaug M, Gerard L, Giavitto G, Giglietto N, Giommi P, Giordano F, Giro E, Giroletti M, Giuliani A, Glicenstein JF, Gnatyk R, Godinovic N, Goldoni P, Gomez-Vargas G, Gonzalez MM, Gonzalez JM, Gotz D, Graham J, Grandi P, Granot J, Green AJ, Greenshaw T, Griffiths S, Gunji S, Hadasch D, Hara S, Hardcastle MJ, Hassan T, Hayashi K, Hayashida M, Heller M, Helo JC, Hermann G, Hinton J, Hnatyk B, Hofmann W, Holder J, Horan D, Horandel J, Horns D, Horvath P, Hovatta T, Hrabovsky M, Hrupec D, Humensky TB, Hutten M, Iarlori M, Inada T, Inome Y, Inoue S, Inoue T, Inoue Y, Iocco F, Ioka K, Iori M, Ishio K, Iwamura Y, Jamrozy M, Janecek P, Jankowsky D, Jean P, Jung-Richardt I, Jurysek J, Kaaret P, Karkar S, Katagiri H, Katz U, Kawanaka N, Kazanas D, Khelifi B, Kieda DB, Kimeswenger S, Kimura S, Kisaka S, Knapp J, Knodlseder J, Koch B, Kohri K, Komin N, Kosack K, Kraus M, Krause M, Krauss F, Kubo H, Mezek GK, Kuroda H, Kushida J, La Palombara N, Lamanna G, Lang RG, Lapington J, Le Blanc O, Leach S, Lees JP, Lefaucheur J, de Oliveira MAL, Lenain JP, Lico R, Limon M, Lindfors E, Lohse T, Lombardi S, Longo F, Lopez M, Lopez-Coto R, Lu CC, Lucarelli F, Luque-Escamilla PL, Lyard E, Maccarone MC, Maier G, Majumdar P, Malaguti G, Mandat D, Maneva G, Manganaro M, Mangano S, Marcowith A, Marin J, Markoff S, Marti J, Martin P, Martinez M, Martinez G, Masetti N, Masuda S, Maurin G, Maxted N, Mazin D, Medina C, Melandri A, Mereghetti S, Meyer M, Minaya IA, Mirabal N, Mirzoyan R, Mitchell A, Mizuno T, Moderski R, Mohammed M, Mohrmann L, Montaruli T, Moralejo A, Morcuende-Parrilla D, Mori K, Morlino G, Morris P, Morselli A, Moulin E, Mukherjee R, Mundell C, Murach T, Muraishi H, Murase K, Nagai A, Nagataki S, Nagayoshi T, Naito T, Nakamori T, Nakamura Y, Niemiec J, Nieto D, Nikolajuk M, Nishijima K, Noda K, Nosek D, Novosyadlyj B, Nozaki S, O'Brien P, Oakes L, Ohira Y, Ohishi M, Ohm S, Okazaki N, Okumura A, Ong RA, Orienti M, Orito R, Osborne JP, Ostrowski M, Otte N, Oya I, Padovani M, Paizis A, Palatiello M, Palatka M, Paoletti R, Paredes JM, Pareschi G, Parsons RD, Pe'er A, Pech M, Pedaletti G, Perri M, Persic M, Petrashyk A, Petrucci P, Petruk O, Peyaud B, Pfeifer M, Piano G, Pisarski A, Pita S, Pohl M, Polo M, Pozo D, Prandini E, Prast J, Principe G, Prokhorov D, Prokoph H, Prouza M, Puhlhofer G, Punch M, Purckhauer S, Queiroz F, Quirrenbach A, Raino S, Razzaque S, Reimer O, Reimer A, Reisenegger A, Renaud M, Rezaeian AH, Rhode W, Ribeiro D, Ribo M, Richtler T, Rico J, Rieger F, Riquelme M, Rivoire S, Rizi V, Rodriguez J, Fernandez GR, Vazquez JJR, Rojas G, Romano P, Romeo G, Rosado J, Rovero AC, Rowell G, Rudak B, Rugliancich A, Rulten C, Sadeh I, Safi-Harb S, Saito T, Sakaki N, Sakurai S, Salina G, Sanchez-Conde M, Sandaker H, Sandoval A, Sangiorgi P, Sanguillon M, Sano H, Santander M, Sarkar S, Satalecka K, Saturni FG, Schioppa EJ, Schlenstedt S, Schneider M, Schoorlemmer H, Schovanek P, Schulz A, Schussler F, Schwanke U, Sciacca E, Scuderi S, Seitenzahl I, Semikoz D, Sergijenko O, Servillat M, Shalchi A, Shellard RC, Sidoli L, Siejkowski H, Sillanpaa A, Sironi G, Sitarek J, Sliusar V, Slowikowska A, Sol H, Stamerra A, Stanic S, Starling R, Stawarz L, Stefanik S, Stephan M, Stolarczyk T, Stratta G, Straumann U, Suomijarvi T, Supanitsky AD, Tagliaferri G, Tajima H, Tavani M, Tavecchio F, Tavernet JP, Tayabaly K, Tejedor LA, Temnikov P, Terada Y, Terrier R, Terzic T, Teshima M, Testa V, Thoudam S, Tian W, Tibaldo L, Tluczykont M, Peixoto CJT, Tokanai F, Tomastik J, Tonev D, Tornikoski M, Torres DF, Torresi E, Tosti G, Tothill N, Tovmassian G, Travnicek P, Trichard C, Trifoglio M, Pujadas IT, Tsujimoto S, Umana G, Vagelli V, Vagnetti F, Valentino M, Vallania P, Valore L, van Eldik C, Vandenbroucke J, Varner GS, Vasileiadis G, Vassiliev V, Acosta MV, Vecchi M, Vega A, Vercellone S, Veres P, Vergani S, Verzi V, Vettolani GP, Viana A, Vigorito C, Villanueva J, Voelk H, Vollhardt A, Vorobiov S, Vrastil M, Vuillaume T, Wagner SJ, Wagner R, Walter R, Ward JE, Warren D, Watson JJ, Werner F, White M, White R, Wierzcholska A, Wilcox P, Will M, Williams DA, Wischnewski R, Wood M, Yamamoto T, Yamazaki R, Yanagita S, Yang L, Yoshida T, Yoshiike S, Yoshikoshi T, Zacharias M, Zaharijas G, Zampieri L, Zandanel F, Zanin R, Zavrtanik M, Zavrtanik D, Zdziarski AA, Zech A, Zechlin H, Zhdanov VI, Ziegler A, Zorn J
(A3 Refereed book chapter or chapter in a compilation book) - Investigating the multiwavelength behaviour of the flat spectrum radio quasar CTA 102 during 2013-2017 (2019)
- Monthly Notices of the Royal Astronomical Society
(A1 Refereed original research article in a scientific journal) - Magnetic field at a jet base: extreme Faraday rotation in 3C 273 revealed by ALMA (2019)
- Astronomy and Astrophysics
(A1 Refereed original research article in a scientific journal) - MOJAVE. XVII. Jet Kinematics and Parent Population Properties of Relativistically Beamed Radio-loud Blazars (2019)
- Astrophysical Journal
(A1 Refereed original research article in a scientific journal) - Multifrequency study of the gamma-ray flaring BL Lacertae object PKS 2233-148 in 2009-2012 (2019)
- Monthly Notices of the Royal Astronomical Society
(A1 Refereed original research article in a scientific journal) - Neutrino candidate source FSRQ PKS 1502+106 at highest flux density at 15 GHz (2019) Astronomer’s telegram Kiehlmann S, Hovatta T, Kadler M, Max-Moerbeck W, Readhead ACS
(D2 Article in a professional compilation book) - Relativistic Jets of Blazars (2019)
- New Astronomy Reviews
(A1 Refereed original research article in a scientific journal)



