Talvikki Hovatta profile picture
Talvikki
Hovatta
Docent, Department of Physics and Astronomy
Academy Research Fellow, Finnish Centre for Astronomy with ESO

Contact

Vesilinnantie 5
20500
Turku

Areas of expertise

astrophysics
radio astronomy
active galaxies
relativistic jets

Biography

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.

Teaching

I teach in two Master level courses "Radio Astronomy" and "Active Galactic Nuclei". I also advice B.Sc., M.Sc., and Post graduate students.

Research

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.

Publications

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Investigating the multiwavelength behaviour of the flat spectrum radio quasar CTA 102 during 2013-2017 (2019)

Monthly Notices of the Royal Astronomical Society
F D’Ammando, C M Raiteri, M Villata, J A Acosta-Pulido, I Agudo, A A Arkharov, R Bachev, G V Baida, E Benítez, G A Borman, W Boschin, V Bozhilov, M S Butuzova, P Calcidese, M I Carnerero, D Carosati, C Casadio, N Castro-Segura, W-P Chen, G Damljanovic, A Di Paola, J Echevarría, N V Efimova, Sh A Ehgamberdiev, C Espinosa, A Fuentes, A Giunta, J L Gómez, T S Grishina, M A Gurwell, D Hiriart, H Jermak, B Jordan, S G Jorstad, M Joshi, G N Kimeridze, E N Kopatskaya, K Kuratov, O M Kurtanidze, S O Kurtanidze, A Lähteenmäki, V M Larionov, E G Larionova, L V Larionova, C Lázaro, C S Lin, M P Malmrose, A P Marscher, K Matsumoto, B McBreen, R Michel, B Mihov, M Minev, D O Mirzaqulov, S N Molina, J W Moody, D A Morozova, S V Nazarov, A A Nikiforova, M G Nikolashvili, J M Ohlert, N Okhmat, E Ovcharov, F Pinna, T A Polakis, C Protasio, T Pursimo, F J Redondo-Lorenzo, N Rizzi, G Rodriguez-Coira, K Sadakane, A C Sadun, M R Samal, S S Savchenko, E Semkov, L Sigua, B A Skiff, L Slavcheva-Mihova, P S Smith, I A Steele, A Strigachev, J Tammi, C Thum, M Tornikoski, Yu V Troitskaya, I S Troitsky, A A Vasilyev, O Vince, T Hovatta, S Kiehlmann, W Max-Moerbeck, A C S Readhead, R Reeves, T J Pearson, T Mufakharov, Yu V Sotnikova, M G Mingaliev
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Introduction to CTA Science (2019)

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
(Vertaisarvioitu artikkeli kokoomateoksessa (A3))

The high brightness temperature of B0529+483 revealed by RadioAstron and implications for interstellar scattering (2018)

Monthly Notices of the Royal Astronomical Society
S. V. Pilipenko, Y. Y. Kovalev, A. S. Andrianov, U. Bach, S. Buttaccio, P. Cassaro, G. Cim`o, P. G. Edwards, M. P. Gawro´nski, L. I. Gurvits, T. Hovatta, D. L. Jauncey, M. D. Johnson, Yu. A. Kovalev, A. M. Kutkin, M. M. Lisakov, A. E. Melnikov, A. Orlati, A. G. Rudnitskiy, K. V. Sokolovsky, C. Stanghellini,P. de Vicente, P. A. Voitsik,P. Wolak, G. V. Zhekanis
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )

Detection of the blazar S4 0954+65 at very-high-energy with the MAGIC telescopes during an exceptionally high optical state (2018)

Astronomy and Astrophysics
Ahnen ML, Ansoldi S, Antonelli LA, Arcaro C, Baack D, Babic A, Banerjee B, Bangale P, de Almeida UB, Barrio JA, Bednarek W, Bernardini E, Berse RC, Berti A, Bhattacharyya W, Biland A, Blanch O, Bonnoli G, Carosi R, Carosi A, Ceribella G, Chatterjee A, Colak SM, Colin P, Colombo E, Contreras JL, Cortina J, Covino S, Cumani P, Da Vela P, Dazzi F, De Angelis A, De Lotto B, Delfino M, Delgado J, Di Pierro F, Dominguez A, Prester DD, Dorner D, Doro M, Einecke S, Elsaesser D, Ramazani VF, Fernandez-Barral A, Fidalgo D, Fonseca MV, Font L, Fruck C, Galindo D, Lopez RJG, Garczarczyk M, Gaug M, Giammaria P, Godinovic N, Gora D, Guberman D, Hadasch D, Hahn A, Hassan T, Hayashida M, Herrera J, Hose J, Hrupec D, Ishio K, Konno Y, Kubo H, Kushida J, Kuvezdic D, Lelas D, Lindfors E, Lombardi S, Longo F, Lopez M, Maggio C, Majumdar P, Makariev M, Maneva G, Manganaro M, Mannheim K, Maraschi L, Mariotti M, Martinez M, Masuda S, Mazin D, Mielke K, Minev M, Miranda JM, Mirzoyan R, Moralejo A, Moreno V, Moretti E, Nagayoshi T, Neustroev V, Niedzwiecki A, Rosillo MN, Nigro C, Nilsson K, Ninci D, Nishijima K, Noda K, Nogues L, Paiano S, Palacio J, Paneque D, Paoletti R, Paredes JM, Pedaletti G, Peresano M, Persic M, Moroni PGP, Prandini E, Puljak I, Garcia JR, Reichardt I, Rhode W, Ribo M, Rico J, Righi C, Rugliancich A, Saito T, Satalecka K, Schweizer T, Sitarek J, Snidaric I, Sobczynska D, Stamerra A, Strzys M, Suric T, Takahashi M, Takalo L, Tavecchio F, Temnikov P, Terzic T, Teshima M, Torres-Alba N, Treves A, Tsujimoto S, Vanzo G, Acosta MV, Vovk I, Ward JE, Will M, Zaric D, Gonzalez JB, Tanaka Y, Ojha R, Finke J, Lahteenmaki A, Jarvela E, Tornikoski M, Ramakrishnan V, Hovatta T, Jorstad SG, Marscher AP, Larionov VM, Borman GA, Grishina TS, Kopatskaya EN, Larionova LV, Morozova DA, Savchenko SS, Troitskaya YV, Troitsky IS, Vasilyev AA, Agudo I, Molina SN, Casadio C, Gurwell M, Carnerero MI, Protasio C, Pulido JAA, Pulido JAA, Protasio C, Carnerero MI, Gurwell M, Casadio C, Molina SN, Agudo I
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Stochastic Modeling of Multiwavelength Variability of the Classical BL Lac Object OJ287 on Timescales Ranging from Decades to Hours (2018)

Astrophysical Journal
Goyal A, Stawarz L, Zola S, Marchenko V, Soida M, Nilsson K, Ciprini S, Baran A, Ostrowski M, Wiita PJ, Gopal-Krishna, Siemiginowska A, Sobolewska M, Jorstad S, Marscher A, Aller MF, Aller HD, Hovatta T, Caton DB, Reichart D, Matsumoto K, Sadakane K, Gazeas K, Kidger M, Piirola V, Jermak H, Alicavus F, Baliyan KS, Baransky A, Berdyugin A, Blay P, Boumis P, Boyd D, Bufan Y, Torrent MC, Campos F, Gomez JC, Dalessio J, Debski B, Dimitrov D, Drozdz M, Er H, Erdem A, Perez AE, Ramazani VF, Filippenko AV, Gafton E, Garcia F, Godunova V, Pinilla FG, Gopinathan M, Haislip JB, Haque S, Harmanen J, Hudec R, Hurst G, Ivarsen KM, Joshi A, Kagitani M, Karaman N, Karjalainen R, Kaur N, Koziel-Wierzbowska D, Kuligowska E, Kundera T, Kurowski S, Kvammen A, LaCluyze AP, Lee BC, Liakos A, de Haro JL, Moore JP, Mugrauer M, Nogues RN, Neely AW, Ogloza W, Okano S, Pajdosz U, Pandey JC, Perri M, Poyner G, Provencal J, Pursimo T, Raj A, Rajkumar B, Reinthal R, Reynolds T, Saario J, Sadegi S, Sakanoi T, Gonzalez JLS, Sameer, Simon AO, Siwak M, Schweyer T, Alfaro FCS, Sonbas E, Strobl J, Takalo LO, Espasa LT, Valdes JR, Vasylenko VV, Verrecchia F, Webb JR, Yoneda M, Zejmo M, Zheng W, Zielinski P, Janik J, Chavushyan V, Mohammed I, Cheung CC, Giroletti M, Giroletti M
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))