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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Insights into the broadband emission of the TeV blazar Mrk 501 during the first X-ray polarization measurements (2024)

Astronomy and Astrophysics
Abe S., Abhir J., Acciari V.A., Aguasca-Cabot A., Agudo I., Aniello T., Ansoldi S., Antonelli L.A., Arbet Engels A., Arcaro C., Asano K., Babić A., Baquero A., Barres De Almeida U., Barrio J.A., Batković I., Bautista A., Baxter J., Becerra González J., Bednarek W., Bernardini E., Bernardos M., Bernete J., Berti A., Besenrieder J., Bigongiari C., Biland A., Blanch O., Bonnoli G., Bošnjak , Burelli I., Busetto G., Campoy-Ordaz A., Carosi A., Carosi R., Carretero-Castrillo M., Castro-Tirado A.J., Ceribella G., Chai Y., Cifuentes A., Colombo E., Contreras J.L., Cortina J., Covino S., D'Amico G., D'Elia V., Da Vela P., Dazzi F., De Angelis A., De Lotto B., De Menezes R., Del Popolo A., Delfino M., Delgado J., Delgado Mendez C., Di Pierro F., Di Venere L., Dominis Prester D., Donini A., Dorner D., Doro M., Elsaesser D., Emery G., Escudero J., Fariña L., Fattorini A., Foffano L., Font L., Fröse S., Fukazawa Y., García López R.J., Garczarczyk M., Gasparyan S., Gaug M., Giesbrecht Paiva J.G., Giglietto N., Giordano F., Gliwny P., Godinović N., Gradetzke T., Grau R., Green D., Green J.G., Günther P., Hadasch D., Hahn A., Hassan T., Heckmann L., Herrera J., Hrupec D., Hütten M., Imazawa R., Ishio K., Jiménez Martínez I., Kayanoki T., Kerszberg D., Kluge G.W., Kobayashi Y., Kouch P.M., Kubo H., Kushida J., Láinez Lezáun M., Lamastra A., Leone F., Lindfors E., Linhoff L., Lombardi S., Longo F., López-Coto R., López-Moya M., López-Oramas A., Loporchio S., Lorini A., Lyard E., MacHado De Oliveira Fraga B., Majumdar P., Makariev M., Maneva G., Mang N., Manganaro M., Mangano S., Mannheim K., Mariotti M., Martínez M., Martínez-Chicharro M., Mas-Aguilar A., Mazin D., Menchiari S., Mender S., Miceli D., Miener T., Miranda J.M., Mirzoyan R., Molero González M., Molina E., Mondal H.A., Moralejo A., Morcuende D., Nakamori T., Nanci C., Neustroev V., Nigro C., Nikolić L., Nilsson K., Nishijima K., Njoh Ekoume T., Noda K., Nozaki S., Ohtani Y., Okumura A., Otero-Santos J., Paiano S., Palatiello M., Paneque D., Paoletti R., Paredes J.M., Peresano M., Persic M., Pihet M., Pirola G., Podobnik F., Prada Moroni P.G., Prandini E., Principe G., Priyadarshi C., Rhode W., Ribó M., Rico J., Righi C., Sahakyan N., Saito T., Satalecka K., Saturni F.G., Schleicher B., Schmidt K., Schmuckermaier F., Schubert J.L., Schweizer T., Sciaccaluga A., Silvestri G., Sitarek J., Sobczynska D., Spolon A., Stamerra A., Strišković J., Strom D., Suda Y., Suutarinen S., Tajima H., Takahashi M., Takeishi R., Tavecchio F., Temnikov P., Terauchi K., Terzić T., Teshima M., Tosti L., Truzzi S., Tutone A., Ubach S., Van Scherpenberg J., Ventura S., Viale I., Vigorito C.F., Vitale V., Vovk I., Walter R., Will M., Wunderlich C., Yamamoto T., Liodakis I., Aceituno F.J., Agís-González B., Akitaya H., Bernardos M.I., Blinov D., Bourbah I.G., Casadio C., Casanova V., D'Ammando F., Fallah Ramazani V., Fernández-García E., Fukazawa Y., García-Comas M., Gau E., Gokus A., Gurwell M., Hakala P., Hovatta T., Hu Y.D., Husillos C., Jormanainen J., Jorstad S.G., Kawabata K.S., Keating G.K., Kiehlmann S., Kontopodis E., Krawczynski H., Lähteenmäki A., Leto C., Lisalda L., Mandarakas N., Marchini A., Marscher A.P., Max-Moerbeck W., Middei R., Mizuno T., Myserlis I., Nakaoka T., Perri M., Puccetti S., Rao R., Readhead A.C.S., Reeves R., Rodriguez Cavero N., Salomé Q., Sasada M., Skalidis R., Sota A., Syrjärinne I., Tornikoski M., Uemura M., Verrecchia F., Vervelaki A.
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Searches for Neutrinos in the Direction of Radio-bright Blazars with the ANTARES Telescope (2024)

Astrophysical Journal
Albert A., Alves S., Andre M., Ardid M., Ardid S., Aubert J. -J., Aublin J., Baret B., Basa S., Becherini Y., Belhorma B., Bendahman M., Benfenati F., Bertin V., Biagi S., Bissinger M., Boumaaza J., Bouta M., Bouwhuis M. C., Branzas H., Bruijn R., Brunner J., Busto J., Caiffi B., Calvo D., Campion S., Capone A., Caramete L., Carenini F., Carr J., Carretero V., Celli S., Cerisy L., Chabab M., El Moursli R. Cherkaoui, Chiarusi T., Circella M., Coelho J. A. B., Coleiro A., Coniglione R., Coyle P., Creusot A., Cruz A. S. M., Diaz A. F., De Martino B., Distefano C., Di Palma I., Domi A., Donzaud C., Dornic D., Drouhin D., Eberl T., van Eeden T., van Eijk D., El Hedri S., El Khayati N., Enzenhofer A., Fermani P., Ferrara G., Filippini F., Fusco L., Gagliardini S., Garcia J., Oliver C. Gatius, Gay P., Geisselbrecht N., Glotin H., Gozzini R., Ruiz R. Gracia, Graf K., Guidi C., Haegel L., Hallmann S., Van Haren H., Heijboer A. J., Hello Y., Hernandez-Rey J. J., Hoessl J., Hofestaedt J., Huang F., Illuminati G., James C. W., Jisse-Jung B., de Jong M., de Jong P., Kadler M., Kalekin O., Katz U., Kouchner A., Kovalev Y. A., Kovalev Y. Y., Kreykenbohm I., Kulikovskiy V., Lahmann R., Lamoureux M., Lazo A., Lefevre D., Leonora E., Levi G., Le Stum S., Lopez-Coto D., Loucatos S., Maderer L., Manczak J., Marcelin M., Margiotta A., Marinelli A., Martinez-Mora J. A., Migliozzi P., Moussa A., Muller R., Navas S., Nezri E., Fearraigh B. O., Oukacha E., Paun A., Pavalas G. E., Pena-Martinez S., Perrin-Terrin M., Pestel V., Piattelli P., Plavin A., Poire C., Popa V., Pradier T., Pushkarev A., Randazzo N., Real D., Reck S., Riccobene G., Romanov A., Sanchez-Losa A., Saina A., Salesa Greus F., Samtleben D. F. E., Sanguineti M., Sapienza P., Schnabel J., Schumann J., Schussler F., Seneca J., Spurio M., Stolarczyk Th., Taiuti M., Tayalati Y., Tingay S. J., Troitsky S., Vallage B., Vannoye G., Van Elewyck V., Viola S., Vivolo D., Wilms J., Zavatarelli S., Zegarelli A., Zornoza J. D., Zuniga J., Hovatta T., Kiehlmann S., Liodakis I., Pavlidou V., Readhead A. C. S.
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Multi-year characterisation of the broad-band emission from the intermittent extreme BL Lac 1ES 2344+514 (2024)

Astronomy and Astrophysics
Abe H, Abe S, Acciari V, Agudo I, Aniello T, Ansoldi S, Antonelli L, Arbet Engels A, Arcaro C, Artero M, Asano K, Baack D, Babić A, Baquero A, Barres De Almeida U, Batković I, Baxter J, Becerra González J, Bernardini E, Bernete J, Berti A, Besenrieder J, Bigongiari C, Biland A, Blanch O, Bonnoli G, Bošnjak Ž, Burelli I, Busetto G, Campoy-Ordaz A, Carosi A, Carosi R, Carretero-Castrillo M, Castro-Tirado A, Chai Y, Cifuentes A, Cikota S, Colombo E, Contreras J, Cortina J, Covino S, D'Amico G, D'Ammando F, D'Elia V, Da Vela P, Dazzi F, De Angelis A, De Lotto B, Del Popolo A, Delfino M, Delgado J, Delgado Mendez C, Depaoli D, Di Pierro F, Di Venere L, Dominis Prester D, Dorner D, Doro M, Elsaesser D, Emery G, Escudero J, Fariña L, Fattorini A, Foffano L, Font L, Fukami S, Fukazawa Y, García López R, Gasparyan S, Gaug M, Giesbrecht Paiva J, Giglietto N, Giordano F, Gliwny P, Grau R, Green J, Hadasch D, Hahn A, Heckmann L, Herrera J, Hrupec D, Hütten M, Imazawa R, Inada T, Iotov R, Ishio K, Jiménez Martínez I, Jormanainen J, Kerszberg D, Kluge G, Kobayashi Y, Kouch P, Kubo H, Kushida J, Láinez Lezáun M, Lamastra A, Leone F, Lindfors E, Linhoff L, Lombardi S, Longo F, López-Moya M, López-Oramas A, Loporchio S, Lorini A, MacHado De Oliveira Fraga B, Majumdar P, Makariev M, Maneva G, Mang N, Manganaro M, Mariotti M, Martínez M, Martínez-Chicharro M, Mas-Aguilar A, Mazin D, Menchiari S, Mender S, Miceli D, Miener T, Miranda J, Mirzoyan R, Molero González M, Molina E, Mondal H, Moralejo A, Morcuende D, Nakamori T, Nanci C, Neustroev V, Nigro C, Nikolić L, Nishijima K, Njoh Ekoume T, Noda K, Nozaki S, Ohtani Y, Okumura A, Otero-Santos J, Paiano S, Palatiello M, Paneque D, Paoletti R, Paredes J, Pavlović D, Persic M, Pihet M, Pirola G, Podobnik F, Prada Moroni P, Prandini E, Principe G, Priyadarshi C, Rhode W, Ribó M, Rico J, Righi C, Sahakyan N, Saito T, Satalecka K, Saturni F, Schleicher B, Schmidt K, Schmuckermaier F, Schubert J, Schweizer T, Sciaccaluga A, Sitarek J, Spolon A, Stamerra A, Strišković J, Strom D, Suda Y, Tajima H, Takeishi R, Tavecchio F, Temnikov P, Terauchi K, Terzić T, Teshima M, Tosti L, Truzzi S, Tutone A, Ubach S, Van Scherpenberg J, Ventura S, Verguilov V, Viale I, Vigorito C, Vitale V, Walter R, Wunderlich C, Yamamoto T, Perri M, Verrecchia F, Leto C, Das S, Chatterjee R, Raiteri C, Villata M, Semkov E, Ibryamov S, Bachev R, Strigachev A, Damljanovic G, Vince O, Jovanovic M, Stojanovic M, Larionov V, Grishina T, Kopatskaya E, Larionova E, Morozova D, Savchenko S, Troitskiy I, Troitskaya Y, Vasilyev A, Chen W, Hou W, Lin C, Tsai A, Jorstad S, Weaver Z, Acosta-Pulido J, Carnerero M, Carosati D, Kurtanidze S, Kurtanidze O, Jordan B, Ivanidze R, Gazeas K, Vrontaki K, Hovatta T, Liodakis I, Readhead A, Kiehlmann S, Zheng W, Filippenko A, Fallah Ramazani V
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

VERITAS Discovery of Very High Energy Gamma-Ray Emission from S3 1227+25 and Multiwavelength Observations (2023)

Astrophysical Journal
Acharyya A, Adams CB, Archer A, Bangale P, Benbow W, Brill A, Christiansen JL, Chromey AJ, Errando M, Falcone A, Feng Q, Finley JP, Foote GM, Fortson L, Furniss A, Gallagher G, Hanlon W, Hanna D, Hervet O, Hinrichs CE, Hoang J, Holder J, Jin W, Johnson MN, Kaaret P, Kertzman M, Kieda D, Kleiner TK, Korzoun N, Krennrich F, Lang MJ, Lundy M, Maier G, McGrath CE, Millard MJ, Millis J, Mooney CL, Moriarty P, Mukherjee R, O'Brien S, Ong RA, Pohl M, Pueschel E, Quinn J, Ragan K, Reynolds PT, Ribeiro D, Roache E, Sadeh I, Sadun AC, Saha L, Santander M, Sembroski GH, Shang R, Splettstoesser M, Talluri AK, Tucci JV, Vassiliev VV, Williams DA, Wong SL, Hovatta T, Jorstad SG, Kiehlmann S, Lahteenmaeki A, Liodakis I, Marscher AP, Max-Moerbeck W, Readhead ACS, Reeves R, Smith PS, Tornikoski M
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Milliarcsecond core size dependence of the radio variability of blazars (2023)

Monthly Notices of the Royal Astronomical Society
Hsu Po-Chih, Koay Jun Yi, Matsushita Satoki, Hwang Chorng-Yuan, Hovatta Talvikki, Kiehlmann Sebastian, Readhead Anthony, Max-Moerbeck Walter, Reeves Rodrigo
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Multiwavelength observations of the lensed quasar PKS 1830-211 during the 2019 γ-ray flare (2023)

Monthly Notices of the Royal Astronomical Society
Vercellone S, Donnarumma,, Pittori C, Capitanio F, De Rosa A, Di Gesu L, Kiehlmann S, Iacolina MN, Pellizzoni PA, Egron E, Pacciani L, Piano G, Puccetti S, Righini S, Valente G, Verrecchia F, Vittorini V, Tavani M, Brocato E, Chen AW, Hovatta Talvikki, Melis A, Max-Moerbeck W, Perrodin D, Pilia M, Pili M, Readhead ACS, Reeves R, Ridolfi A, Vitali F, Bulgarelli A, Cattaneo PW, Lucarelli F, Morselli A, Trois A
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))