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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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
Acciari VA, Ansoldi S, Antonelli LA, Engels AA, Baack D, Babic A, Banerjee B, de Almeida UB, Barrio JA, Gonzalez JB, Bednarek W, Bellizzi LK, Bernardini E, Berti A, Besenrieder J, Bhattacharyya W, Bigongiari C, Biland A, Blanch O, Bonnoli G, Bosnjak Z, Busetto G, Carosi R, Ceribella G, Cerruti M, Chai Y, Chilingarian A, Cikota S, Colak SM, Colin U, Colombo E, Contreras JL, Cortina J, Covino S, D'Elia V, Da Vela P, Dazzi F, De Angelis A, De Lotto B, Del Puppo F, Delfino M, Delgado J, Depaoli D, Di Pierro F, Di Venere L, Espineira ED, Prester DD, Donini A, Dorner D, Doro M, Elsaesser D, Ramazani VF, Fattorini A, Ferrara G, Foffano L, Fonseca MV, Font L, Fruck C, Fukami S, Lopez RJG, Garczarczyk M, Gasparyan S, Gaug M, Giglietto N, Giordano F, Gliwny P, Godinovic N, Green D, Hadasch D, Hahn A, Hassan T, Herrera J, Hoang J, Hrupec D, Hutten M, Inada T, Inoue S, Ishio K, Iwamura Y, Jouvin L, Kajiwara Y, Kerszberg D, Kobayashi Y, Kubo H, Kushida J, Lamastra A, Lelas D, Leone F, Lindfors E, Lombardi S, Longo F, Lopez M, Lopez-Coto R, Lopez-Oramas A, Loporchio S, Fraga BMD, Maggio C, Majumdar P, Makariev M, Mallamaci M, Maneva G, Manganaro M, Mannheim K, Maraschi L, Mariotti M, Martinez M, Mazin D, Mender S, Micanovic S, Miceli D, Miener T, Minev M, Miranda JM, Mirzoyan R, Molina E, Moralejo A, Morcuende D, Moreno V, Moretti E, Munar-Adrover P, Neustroev V, Nigro C, Nilsson K, Ninci D, Nishijima K, Noda K, Nogues L, Nozaki S, Ohtani Y, Oka T, Otero-Santos J, Palatiello M, Paneque D, Paoletti R, Paredes JM, Pavletic L, Penil P, Peresano M, Persic M, Moroni PGP, Prandini E, Puljak I, Rhode W, Ribo M, Rico J, Righi C, Rugliancich A, Saha L, Sahakyan N, Saito T, Sakurai S, Satalecka K, Schleicher B, Schmidt K, Schweizer T, Sitarek J, Snidaric I, Sobczynska D, Spolon A, Stamerra A, Strom D, Strzys M, Suda Y, Suric T, Takahashi M, Tavecchio F, Temnikov P, Terzic T, Teshima M, Torres-Alba N, Tosti L, van Scherpenberg J, Vanzo G, Acosta MV, Ventura S, Verguilov V, Vigorito CF, Vitale V, Vovk I, Will M, Zaric D, Petropoulou M, Finke J, D'Ammando F, Balokovi M, Madejskic G, Mori K, Puccetti S, Leto C, Perri M, Verrecchia F, Villata M, Raiteri CM, Agudo I, Bachev R, Berdyugin A, Blinov DA, Chanishvili R, Chen WP, Chigladze R, Damljanovic G, Eswaraiah C, Grishina TS, Ibryamov S, Jordan B, Jorstad SG, Joshi M, Kopatskaya EN, Kurtanidze OM, Kurtanidze SO, Larionova EG, Larionova LV, Larionov VM, Latev G, Lin HC, Marscher AP, Mokrushina AA, Morozova DA, Nikolashvili MG, Semkov E, Smith PS, Strigachev A, Troitskaya YV, Troitsky IS, Vince O, Barnes J, Guver T, Moody JW, Sadun AC, Hovatta T, Richards JL, Max-Moerbeck W, Readhead ACS, Lahteenmaki A, Tornikoski M, Tammi J, Ramakrishnan V, Reinthal R, Reinthal R, Ramakrishnan V, Tammi J, Tornikoski M, Lahteenmaki A, Readhead ACS, Max-Moerbeck W, Richards JL, Hovatta T, Sadun AC, Moody JW, Guver T, Barnes J, Vince O
(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))

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
V. A. Acciari, S. Ansoldi, L. A. Antonelli, A. Arbet Engels, D. Baack, A. Babić, B. Banerjee, P. Bangale, U. Barres de Almeida, J. A. Barrio, J. Becerra González, W. Bednarek, E. Bernardini, A. Berti, J. Besenrieder, W. Bhattacharyya, C. Bigongiari, A. Biland, O. Blanch, G. Bonnoli, R. Carosi, G. Ceribella, S. Cikota, S. M. Colak, P. Colin, E. Colombo, J. L. Contreras, J. Cortina, S. Covino, V. D’Elia, P. Da Vela, F. Dazzi, A. De Angelis, B. De Lotto, M. Delfino, J. Delgado, F. Di Pierro, E. Do Souto Espiñera, A. Domínguez, D. Dominis Prester, D. Dorner, M. Doro, S. Einecke, D. Elsaesser, V. Fallah Ramazani, A. Fattorini, A. Fernández-Barral, G. Ferrara, D. Fidalgo, L. Foffano, M. V. Fonseca, L. Font, C. Fruck, D. Galindo, S. Gallozzi, R. J. García López, M. Garczarczyk, M. Gaug, P. Giammaria, N. Godinović, D. Guberman, D. Hadasch, A. Hahn, T. Hassan, J. Herrera, J. Hoang, D. Hrupec, S. Inoue, K. Ishio, Y. Iwamura, H. Kubo, J. Kushida, D. Kuveždić, A. Lamastra, D. Lelas, F. Leone, E. Lindfors, S. Lombardi, F. Longo, M. López, A. López-Oramas, C. Maggio, P. Majumdar, M. Makariev, G. Maneva, M. Manganaro, K. Mannheim, L. Maraschi, M. Mariotti, M. Martínez, S. Masuda, D. Mazin, M. Minev, J. M. Mirand, R. Mirzoyan, E. Molina, A. Moralejo, V. Moreno, E. Moretti, P. Munar-Adrover, V. Neustroev, A. Niedzwiecki, M. Nievas Rosillo, C. Nigro, K. Nilsson, D. Ninci, K. Nishijima, K. Noda, L. Nogués, M. Nöthe, S. Paiano, J. Palacio, D. Paneque, R. Paoletti, J. M. Paredes, G. Pedaletti, P. Peñil, M. Peresano, M. Persic, P. G. Prada Moroni, E. Prandini, I. Puljak, J. R. Garcia, W. Rhode, M. Ribó, J. Rico, C. Righi, A. Rugliancich, L. Saha, T. Saito, K. Satalecka, T. Schweizer, J. Sitarek, I. Šnidarić, D. Sobczynska, A. Somero, A. Stamerra, M. Strzys, T. Surić, F. Tavecchio, P. Temnikov, T. Terzić6, M. Teshima, N. Torres-Albà, S. Tsujimoto, J. van Scherpenberg, G. Vanzo, M. Vazquez Acosta, I. Vovk, M. Will, D. Zarić, F. D’Ammando, K. Hada, S. Jorstad, A. P. Marscher, M. Z. Mobeen, T. Hovatta, V. M. Larionov, G. A. Borman, T. S. Grishina, E. N. Kopatskaya, D. A. Morozova, A. A. Nikiforova, A. Lähteenmäki, M. Tornikoski, I. Agudo
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

RoboPol: a four-channel optical imaging polarimeter (2019)

Monthly Notices of the Royal Astronomical Society
A. N. Ramaprakash, C. V. Rajarshi, H. K. Das, P. Khodade, D. Modi, G. Panopoulou, S. Maharana, D. Blinov, E. Angelakis, C. Casadio, L. Fuhrmann, T. Hovatta, S. Kiehlmann, O. G. King, N. Kylafis, A. Kougentakis, A. Kus, A. Mahabal, A. Marecki, I. Myserlis, G. Paterakis, E. Paleologou, I. Liodakis, I. Papadakis, I. Papamastorakis, V. Pavlidou, E. Pazderski, T. J. Pearson, A. C. S. Readhead, P. Reig, A. Słowikowska, K. Tassis, J. A. Zensus
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

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))

Relativistic Jets of Blazars (2019)

New Astronomy Reviews
Talvikki Hovatta, Elina Lindfors
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))