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

Sort by:

Investigating the Blazar TXS 0506+056 through Sharp Multiwavelength Eyes During 2017-2019 (2022)

Astrophysical Journal
Acciari VA, Aniello T, Ansoldi S, Antonelli LA, Engels AA, Artero M, Asano K, Baack D, Babic A, Baquero A, de Almeida UB, Barrio JA, Batkovic I, Gonzalez JB, Bednarek W, Bernardini E, Bernardos M, Berti A, Besenrieder J, Bhattacharyya W, Bigongiari C, Biland A, Blanch O, Bokenkamp H, Bonnoli G, Bosnjak Z, Busetto G, Carosi R, Ceribella G, Cerruti M, Chai Y, Chilingarian A, Cikota S, Colombo E, Contreras JL, Cortina J, Covino S, D'Amico G, D'Elia V, Da Vela P, Dazzi F, De Angelis A, De Lotto B, Del Popolo A, Delfino M, Delgado J, Mendez CD, Depaoli D, Di Pierro F, Di Venere L, Espineira ED, Prester DD, Donini A, Dorner D, Doro M, Elsaesser D, Ramazani VF, Farina L, Fattorini A, Font L, Fruck C, Fukami S, Fukazawa Y, Lopez RJG, Garczarczyk M, Gasparyan S, Gaug M, Giglietto N, Giordano F, Gliwny P, Godinovic N, Green JG, Green D, Hadasch D, Hahn A, Hassan T, Heckmann L, Herrera J, Hoang J, Hrupec D, Hutten M, Inada T, Iotov R, Ishio K, Iwamura Y, Martinez IJ, Jormanainen J, Jouvin L, Kerszberg D, Kobayashi Y, Kubo H, Kushida J, Lamastra A, Lelas D, Leone F, Lindfors E, Linhoff L, Lombardi S, Longo F, Lopez-Coto R, Lopez-Moya M, Lopez-Oramas A, Loporchio S, Fraga BMD, Maggio C, Majumdar P, Makariev M, Mallamaci M, Maneva G, Manganaro M, Mannheim K, Mariotti M, Martinez M, Aguilar AM, Mazin D, Menchiari S, Mender S, Micanovic S, Miceli D, Miener T, Miranda JM, Mirzoyan R, Molina E, Moralejo A, Morcuende D, Moreno V, Moretti E, Nakamori T, Nava L, Neustroev V, Rosillo MN, Nigro C, Nilsson K, Nishijima K, Noda K, Nozaki S, Ohtani Y, Oka T, Otero-Santos J, Paiano S, Palatiello M, Paneque D, Paoletti R, Paredes JM, Pavletic L, Penil P, Persic M, Pihet M, Moroni PGP, Prandini E, Priyadarshi C, Puljak I, Rhode W, Ribo M, Rico J, Righi C, Rugliancich A, Sahakyan N, Saito T, Sakurai S, Satalecka K, Saturni FG, Schleicher B, Schmidt K, Schmuckermaier F, Schweizer T, Sitarek J, Snidaric I, Sobczynska D, Spolon A, Stamerra A, Striskovic J, Strom D, Strzys M, Suda Y, Suric T, Takahashi M, Takeishi R, Tavecchio F, Temnikov P, Terzic T, Teshima M, Tosti L, Truzzi S, Tutone A, Ubach S, van Scherpenberg J, Vanzo G, Acosta MV, Ventura S, Verguilov V, Viale I, Vigorito CF, Vitale V, Vovk I, Will M, Wunderlich C, Yamamoto T, Zaric D, Hodges M, Hovatta T, Kiehlmann S, Liodakis I, Max-Moerbeck W, Pearson TJ, Readhead ACS, Reeves RA, Lahteenmaki A, Tornikoski M, Tammi J, D'Ammando F, Marchini A
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

The Baikal-GVD neutrino telescope: search for high-energy cascades (2022)

International Cosmic Ray Conference, POS Proceedings of Science
Allakhverdyan V.A., Avrorin A.D., Avrorin A.V., Aynutdinov V.M., Bannasch R., Bardаčová Z., Belolaptikov I.A., Borina I.V., Brudanin V.B., Budnev N.M., Dik V.Y., Domogatsky G.V., Doroshenko A.A., Dvornický R., Dyachok A.N., Dzhilkibaev Z.A.M., Eckerová E., Elzhov T.V., Fajt L., Fialkovsky S.V., Gafarov A.R., Golubkov K.V., Gorshkov N.S., Gress T.I., Katulin M.S., Kebkal K.G., Kebkal O.G., Khramov E.V., Kolbin M.M., Konischev K.V., Kopański K.A., Korobchenko A.V., Koshechkin A.P., Kozhin V.A., Kruglov M.V., Kryukov M.K., Kulepov V.F., Malecki P., Malyshkin Y.M., Milenin M.B., Mirgazov R.R., Naumov D.V., Nazari V., Noga W., Petukhov D.P., Pliskovsky E.N., Rozanov M.I., Rushay V.D., Ryabov E.V., Safronov G.B., Shaybonov B.A., Shelepov M.D., Šimkovic F., Sirenko A.E., Skurikhin A.V., Solovjev A.G., Sorokovikov M.N., Štekl I., Stromakov A.P., Sushenok E.O., Suvorova O.V., Tabolenko V.A., Tarashansky B.A., Yablokova Y.V., Yakovlev S., Zaborov D.N., Kovalev Y.A., Kovalev Y.Y., Plavin A.V., Troitsky S.V., Erkenov A.K., Mufakharov T.V., Sotnikova Y.V., Hovatta T., Kiehlmann S., Readhead A.C.S.
(Vertaisarvioitu artikkeli konferenssijulkaisussa (A4))

The Unanticipated Phenomenology of the Blazar PKS 2131-021: A Unique Supermassive Black Hole Binary Candidate (2022)

Astrophysical Journal Letters
O'Neill S, Kiehlmann S, Readhead ACS, Aller MF, Blandford RD, Liodakis I, Lister ML, Mroz P, O'Dea CP, Pearson TJ, Ravi V, Vallisneri M, Cleary KA, Graham MJ, Grainge KJB, Hodges MW, Hovatta T, Lahteenmaki A, Lamb JW, Lazio TJW, Max-Moerbeck W, Pavlidou V, Prince TA, Reeves RA, Tornikoski M, de la Parra PV, Zensus JA
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Locating the γ-ray emitting region in the quasar 4C +01.28 (2022)

European VLBI Network Mini-Symposium and Users' Meeting, POS Proceedings of Science
Rösch F., Kadler M., Ros E., Gurwell M., Hovatta T., Kreter M., MacDonald N.R., Readhead A.C.S.
(Vertaisarvioitu artikkeli konferenssijulkaisussa (A4))

Multiwavelength Variability Power Spectrum Analysis of the Blazars 3C 279 and PKS 1510-089 on Multiple Timescales (2022)

Astrophysical Journal
Goyal Arti, Soida Marian, Stawarz Łukasz, Wiita Paul J., Nilsson Kari, Jorstad Svetlana, Marscher Alan P., Aller Margo F., Aller Hugh D., Lähteenmäki Anne, Hovatta Talvikki, Zoła Staszek, Nalewajko Krzysztof, Tornikoski Merja, Tammi Joni, Hodges Mark, Kiehlmann Sebastian, Readhead Anthony C. S., Max-Moerbeck Walter, Lindfors Elina, Ramazani Vandad Fallah, Reichart D. E., Caton D. B., Valverde Janeth, Horan Deirdre, Ojha Roopesh, van Zyl Pfesesani
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Multiwavelength study of the gravitationally lensed blazar QSO B0218+357 between 2016 and 2020 (2022)

Monthly Notices of the Royal Astronomical Society
Acciari VA, Ansoldi S, Antonelli LA, Engels AA, Artero M, Asano K, Baack D, Babic A, Baquero A, de Almeida UB, Barrio JA, Batkovic I, Gonzalez JB, Bednarek W, Bellizzi L, Bernardini E, Bernardos M, 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, Colombo E, Contreras JL, Cortina J, Covino S, D'Amico G, D'Elia V, Da Vela P, Dazzi F, De Angelis A, De Lotto B, Delfino M, Delgado J, Mendez CD, 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, 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 JG, Green D, Hadasch D, Hahn A, Heckmann L, Herrera J, Hoang J, Hrupec D, Hutten M, Inada T, Inoue S, Ishio K, Iwamura Y, Jimenez I, Jormanainen J, Jouvin L, Kajiwara Y, Karjalainen M, Kerszberg D, Kobayashi Y, Kubo H, Kushida J, Lamastra A, Lelas D, Leone F, Lindfors E, Lombardi S, Longo F, Lopez-Coto R, Lopez-Moya M, 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, Menchiari S, Mender S, Micanovic S, Miceli D, Miener T, Minev M, Miranda JM, Mirzoyan R, Molina E, Moralejo A, Morcuende D, Moreno V, Moretti E, Neustroev V, Nigro C, Nilsson K, Nishijima K, Noda K, Nozaki S, Ohtani Y, Oka T, Otero-Santos J, Paiano S, Palatiello M, Paneque D, Paoletti R, Paredes JM, Pavletic L, Penil P, Perennes C, Persic M, Moroni PGP, Prandini E, Priyadarshi C, Puljak I, Rhode W, Ribo M, Rico J, Righi C, Rugliancich A, Saha L, Sahakyan N, Saito T, Sakurai S, Satalecka K, Saturni FG, 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, Tosti L, Truzzi S, Tutone A, Ubach S, van Scherpenberg J, Vanzo G, Acosta MV, Ventura S, Verguilov V, Vigorito CF, Vitale V, Vovk I, Will M, Wunderlich C, Zaric D, de Palma F, D'Ammando F, Barnacka A, Sahu DK, Hodges M, Hovatta T, Kiehlmann S, Max-Moerbeck W, Readhead ACS, Reeves R, Pearson TJ, Lahteenmaki A, Bjorklund I, Tornikoski M, Tammi J, Suutarinen S, Hada K, Niinuma K
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))