Talvikki Hovatta
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.
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.
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.
Publications
- 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
(A1 Refereed original research article in a scientific journal)
- ALMA/NICER observations of GRS 1915+105 indicate a return to a hard state (2021)
- Astronomy and Astrophysics
Koljonen Karri, Hovatta Talvikki
(A1 Refereed original research article in a scientific journal)
- Association of IceCube neutrinos with radio sources observed at Owens Valley and Metsahovi Radio Observatories (2021)
- Astronomy and Astrophysics
Hovatta T., Lindfors E., Kiehlmann S., Max-Moerbeck W., Hodges M., Liodakis I., Lähteemäki A., Pearson T. J., Readhead A. C. S., Reeves R. A., Suutarinen S., Tammi J., Tornikoski M.
(A1 Refereed original research article in a scientific journal)
- Identifying changing jets through their radio variability (2021)
- Astronomy and Astrophysics
Liodakis Yannis, Hovatta Talvikki, Aller Margo F, Aller Hugh D, Gurwell MA, Lähteenmäki Anne, Tornikoski Merja
(A1 Refereed original research article in a scientific journal)
- MOJAVE. XIX. Brightness Temperatures and Intrinsic Properties of Blazar Jets (2021) Homan DC, Cohen MH, Hovatta T, Kellermann KI, Kovalev YY, Lister ML, Popkov AV, Pushkarev AB, Ros E, Savolainen T
(A1 Refereed original research article in a scientific journal)
- Optical and near-infrared observations of PKS 0735+178 #15136 (2021) Astronomer's Telegram Lindfors Elina, Hovatta Talvikki, Pursimo Tapio, Pinter Viktoria, Warren Stephen, Andradi-Brown Thomas, Xie Zhang-Liang, Banados Eduardo, Fugazza Dino, Molinari Emilio
(D2 Article in a professional compilation book)
- RoboPol: AGN polarimetric monitoring data (2021)
- Monthly Notices of the Royal Astronomical Society
Blinov D., Kiehlmann S., Pavlidou V., Panopoulou G. V., Skalidis R., Angelakis E., Casadio C., Einoder E. N., Hovatta T., Kokolakis K., Kougentakis A., Kus A., Kylafis N., Kyritsis E., Lalakos11 A., Liodakis I., Maharana12 S., Makrydopoulou E., Mandarakas N., Maragkakis G. M., Papadakis I. Myserlis,I., Paterakis G., Pearson T. J., Ramaprakash A. N., Readhead A. C. S., Reig P., Słowikowska A., Tassis K., Xexakis K., Żejmo M., Zensus J. A.
(A1 Refereed original research article in a scientific journal)
- Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation (2021)
- Journal of Cosmology and Astroparticle Physics
Abdalla H., Abe H., Acero F., Acharyya A., Adam R., Agudo I., Aguirre-Santaella A., Alfaro R., Alfaro J., Alispach C., Aloisio R., Alves Batista R., Amati L., Amato E., Ambrosi G., Angüner E. O., Araudo A., Armstrong T., Arqueros F., Arrabito L., Asano K., Ascasíbar Y., Ashley M., Backes M., Balazs C., Balbo M., Balmaverde B., Baquero Larriva A., Barbosa Martins V., Barkov M., Baroncelli L., Barres de Almeida U., Barrio J. A., Batista P. -I., Becerra González J., Becherini Y., Beck G., Becker Tjus J., Belmont R., Benbow W., Bernardini E., Berti A., Berton M., Bertucci B., Beshley V., Bi B., Biasuzzi B., Biland A., Bissaldi E., Biteau J., Blanch O., Bocchino F., Boisson C., Bolmont J., Bonanno G., Bonneau Arbeletche L., Bonnoli G., Bordas P., Bottacini E., Böttcher M., Bozhilov V., Bregeon J., Brill A., Brown A. M., Bruno P., Bruno A., Bulgarelli A., Burton M., Buscemi M., Caccianiga A., Cameron R., Capasso M., Caprai M., Caproni A., Capuzzo-Dolcetta R., Caraveo P., Carosi R., Carosi A., Casanova S., Cascone E., Cauz D., Cerny K., Cerruti M., Chadwick P., Chaty S., Chen A., Chernyakova M., Chiaro G., Chiavassa A., Chytka L., Conforti V., Conte F., Contreras J. L., Coronado-Blazquez J., Cortina J., Costa A., Costantini H., Covino S., Cristofari P., Cuevas O., D'Ammando F., Daniel M. K., Davies J., Dazzi F., De Angelis A., de Bony de Lavergne M., De Caprio V., de Cássia dos Anjos R., de Gouveia Dal Pino E. M., De Lotto B., De Martino D., de Naurois M., de Oña Wilhelmi E., De Palma F., de Souza V., Delgado C., Della Ceca R., della Volpe D., Depaoli D., Di Girolamo T., Di Pierro F., Díaz C., Díaz-Bahamondes C., Diebold S., Djannati-Ataï A., Dmytriiev A., Domínguez A., Donini A., Dorner D., Doro M., Dournaux J., Dwarkadas V. V., Ebr J., Eckner C., Einecke S., Ekoume T., R. N., Elsässer D., Emery G., Evoli C., Fairbairn M., Falceta-Goncalves D., Fegan S., Feng Q., Ferrand G., Fiandrini E., Fiasson A., Fioretti V., Foffano L., Fonseca M. V., Font L., Fontaine G., Franco F. J., Freixas Coromina L., Fukami S., Fukazawa Y., Fukui Y., Gaggero D., Galanti G., Gammaldi V., Garcia E., Garczarczyk M., Gascon D., Gaug M., Gent A., Ghalumyan A., Ghirlanda G., Gianotti F., Giarrusso M., Giavitto G., Giglietto N., Giordano F., Glicenstein J., Goldoni P., González J. M., Gourgouliatos K., Grabarczyk T., Grandi P., Granot J., Grasso D., Green J., Grube J., Gueta O., Gunji S., Halim A., Harvey M., Hassan Collado T., Hayashi K., Heller M., Hernández Cadena S., Hervet O., Hinton J., Hiroshima N., Hnatyk B., Hnatyk R., Hoffmann D., Hofmann W., Holder J., Horan D., Hörandel J., Horvath P., Hovatta T., Hrabovsky M., Hrupec D., Hughes G., Hütten M., Iarlori M., Inada T., Inoue S., Insolia A., Ionica M., Iori M., Jacquemont M., Jamrozy M., Janecek P., Jiménez Martínez I., Jin W., Jung-Richardt I., Jurysek J., Kaaret P., Karas V., Karkar S., Kawanaka N., Kerszberg D., Khélifi B., Kissmann R., Knödlseder J., Kobayashi Y., Kohri K., Komin N., Kong A., Kosack K., Kubo H., La Palombara N., Lamanna G., Lang R. G., Lapington J., Laporte P., Lefaucheur J., Lemoine-Goumard M., Lenain J., Leone F., Leto G., Leuschner F., Lindfors E., Lloyd S., Lohse T., Lombardi S., Longo F., Lopez A., López M., López-Coto R., Loporchio S., Lucarelli F., Luque-Escamilla P. L., Lyard E., Maggio C., Majczyna A., Makariev M., Mallamaci M., Mandat D., Maneva G., Manganaro M., Manicò G., Marcowith A., Marculewicz M., Markoff S., Marquez P., Martí J., Martinez O., Martínez M., Martínez G., Martínez-Huerta H., Maurin G., Mazin D., Mbarubucyeye J. D., Medina Miranda D., Meyer M., Micanovic S., Miener T., Minev M., Miranda J. M., Mitchell A., Mizuno T., Mode B., Moderski R., Mohrmann L., Molina E., Montaruli T., Moralejo A., Morales Merino J., Morcuende-Parrilla D., Morselli A., Mukherjee R., Mundell C., Murach T., Muraishi H., Nagai A., Nakamori T., Nemmen R., Niemiec J., Nieto D., Nievas M., Nikolajuk M., Nishijima K., Noda K., Nosek D., Nozaki S., O'Brien P., Ohira Y., Ohishi M., Oka T., Ong R. A., Orienti M., Orito R., Orlandini M., Orlando E., Osborne J. P., Ostrowski M., Oya I., Pagliaro A., Palatka M., Paneque D., Pantaleo F. R., Paredes J. M., Parmiggiani N., Patricelli B., Pavletić L., Pe'er A., Pech M., Pecimotika M., Peresano M., Persic M., Petruk O., Pfrang K., Piatteli P., Pietropaolo E., Pillera R., Pilszyk B., Pimentel D., Pintore F., Pita S., Pohl M., Poireau V., Polo M., Prado R. R., Prast J., Principe G., Produit N., Prokoph H., Prouza M., Przybilski H., Pueschel E., Pühlhofer G., Pumo M. L., Punch M., Queiroz F., Quirrenbach A., Rando R., Razzaque S., Rebert E., Recchia S., Reichherzer P., Reimer O., Reimer A., Renier Y., Reposeur T., Rhode W., Ribeiro D., Ribó M., Richtler T., Rico J., Rieger F., Rizi V., Rodriguez J., Rodriguez Fernandez G., Rodriguez Ramirez J. C., Rodríguez Vázquez J. J., Romano P., Romeo G., Roncadelli M., Rosado J., Rosales de Leon A., Rowell G., Rudak B., Rujopakarn W., Russo F., Sadeh I., Saha L., Saito T., Salesa Greus F., Sanchez D., Sánchez-Conde M., Sangiorgi P., Sano H., Santander M., Santos E. M., Sanuy A., Sarkar S., Saturni F. G., Sawangwit U., Scherer A., Schleicher B., Schovanek P., Schussler F., Schwanke U., Sciacca E., Scuderi S., Seglar Arroyo M., Sergijenko O., Servillat M., Seweryn K., Shalchi A., Sharma P., Shellard R. C., Siejkowski H., Sinha A., Sliusar V., Slowikowska A., Sokolenko A., Sol H., Specovius A., Spencer S., Spiga D., Stamerra A., Stanič S., Starling R., Stolarczyk T., Straumann U., Strišković J., Suda Y., Świerk P., Tagliaferri G., Takahashi H., Takahashi M., Tavecchio F., Taylor L., Tejedor L. A., Temnikov P., Terrier R., Terzic T., Testa V., Tian W., Tibaldo L., Tonev D., Torres D. F., Torresi E., Tosti L., Tothill N., Tovmassian G., Travnicek P., Truzzi S., Tuossenel F., Umana G., Vacula M., Vagelli V., Valentino M., Vallage B., Vallania P., van Eldik C., Varner G. S., Vassiliev V., Vázquez Acosta M., Vecchi M., Veh J., Vercellone S., Vergani S., Verguilov V., Vettolani G. P., Viana A., Vigorito C. F., Vitale V., Vorobiov S., Vovk I., Vuillaume T., Wagner S. J., Walter R., Watson J., White M., White R., Wiemann R., Wierzcholska A., Will M., Williams D. A., Wischnewski R., Wolter A., Yamazaki R., Yanagita S., Yang L., Yoshikoshi T., Zacharias M., Zaharijas G., Zaric D., Zavrtanik M., Zavrtanik D., Zdziarski A. A., Zech A., Zechlin H., Zhdanov V. I., Živec M.
(A1 Refereed original research article in a scientific journal)
- Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre (2021)
- Journal of Cosmology and Astroparticle Physics
Acharyya A, Adam R, Adams C, Agudo I, Aguirre-Santaella A, Alfaro R, Alfaro J, Alispach C, Aloisio R, Batista RA, Amati L, Ambrosi G, Anguner EO, Antonelli LA, Aramo C, Araudo A, Armstrong T, Arqueros F, Asano K, Ascasibar Y, Ashley M, Balazs C, Ballester O, Larriva AB, Martins VB, Barkov M, de Almeida UB, Barrio JA, Bastieri D, Becerra J, Beck G, Tjus JB, Benbow W, Benito M, Berge D, Bernardini E, Bernlohr K, Berti A, Bertucci B, Beshley V, Biasuzzi B, Biland A, Bissaldi E, Biteau J, Blanch O, Blazek J, Bocchino F, Boisson C, Arbeletche LB, Bordas P, Bosnjak Z, Bottacini E, Bozhilov V, Bregeon J, Brill A, Bringmann T, Brown AM, Brun P, Brun F, Bruno P, Bulgarelli A, Burton M, Burtovoi A, Buscemi M, Cameron R, Capasso M, Caproni A, Capuzzo-Dolcetta R, Caraveo P, Carosi R, Carosi A, Casanova S, Cascone E, Cassol F, Catalani F, Cauz D, Cerruti M, Chadwick P, Chaty S, Chen A, Chernyakova M, Chiaro G, Chiavassa A, Chikawa M, Chudoba J, Colak M, Conforti V, Coniglione R, Conte F, Contreras JL, Coronado-Blazquez J, Costa A, Costantini H, Cotter G, Cristofari P, D'Ai A, D'Ammando A, Damone LA, Daniel MK, Dazzi F, De Angelis A, De Caprio V, dos Anjos RD, Dal Pino EMD, De Lotto B, De Martino D, Wilhelmi ED, De Palma F, de Souza V, Delgado C, Giler AGD, della Volpe D, Depaoli D, Di Girolamo T, Di Pierro F, Di Venere L, Diebold S, Dmytriiev A, Dominguez A, Donini A, Doro M, Ebr J, Eckner C, Edwards TDP, Ekoume TRN, Elsasser D, Evoli C, Falceta-Goncalves D, Fedorova E, Fegan S, Feng Q, Ferrand G, Ferrara G, Fiandrini E, Fiasson A, Filipovic M, Fioretti V, Fiori M, Foffano L, Fontaine G, Fornieri O, Franco FJ, Fukami S, Fukui Y, Gaggero D, Galaz G, Gammaldi V, Garcia E, Garczarczyk M, Gascon D, Gent A, Ghalumyan A, Gianotti F, Giarrusso M, Giavitto G, Giglietto N, Giordano F, Giuliani A, Glicenstein J, Gnatyk R, Goldoni P, Gonzalez MM, Gourgouliatos K, Granot J, Grasso D, Green J, Grillo A, Gueta O, Gunji S, Halim A, Hassan T, Heller M, Cadena SH, Hiroshima N, Hnatyk B, Hofmann W, Holder J, Horan D, Horandel J, Horvath P, Hovatta T, Hrabovsky M, Hrupec D, Hughes G, Humensky TB, Hutten M, Iarlori M, Inada T, Inoue S, Iocco F, Iori M, Jamrozy M, Janecek P, Jin W, Jouvin L, Jurysek J, Karukes E, Katarzynski K, Kazanas D, Kerszberg D, Kherlakian MC, Kissmann R, Knodlseder J, Kobayashi Y, Kohri K, Komin N, Kubo H, Kushida J, Lamanna G, Lapington J, Laporte P, de Oliveira MAL, Lenain J, Leone F, Leto G, Lindfors E, Lohse T, Lombardi S, Longo F, Lopez A, Lopez M, Lopez-Coto R, Loporchio S, Luque-Escamilla PL, Mach E, Maggio C, Maier G, Mallamaci M, de Almeida RMN, Mandat D, Manganaro M, Mangano S, Manico G, Marculewicz M, Mariotti M, Markoff S, Marquez P, Marti J, Martinez O, Martinez M, Martinez G, Martinez-Huerta H, Maurin G, Mazin D, Mbarubucyeye JD, Miranda DM, Meyer M, Miceli M, Miener T, Minev M, Miranda JM, Mirzoyan R, Mizuno T, Mode B, Moderski R, Mohrmann L, Molina E, Montaruli T, Moralejo A, Morcuende-Parrilla D, Morselli A, Mukherjee R, Mundell C, Nagai A, Nakamori T, Nemmen R, Niemiec J, Nieto D, Nikolajuk M, Ninci D, Noda K, Nosek D, Nozaki S, Ohira Y, Ohishi M, Ohtani Y, Oka T, Okumura A, Ong RA, Orienti M, Orito R, Orlandini M, Orlando S, Orlando E, Ostrowski M, Oya I, Pagano I, Pagliaro A, Palatiello M, Pantaleo FR, Paredes JM, Pareschi G, Parmiggiani N, Patricelli B, Pavletic L, Pe'er A, Pecimotika M, Perez-Romero J, Persic M, Petruk O, Pfrang K, Piano G, Piatteli P, Pietropaolo E, Pillera R, Pilszyk B, Pintore F, Pohl M, Poireau V, Prado RR, Prandini E, Prast J, Principe G, Prokoph H, Prouza M, Przybilski H, Puhlhofer G, Pumo ML, Queiroz F, Quirrenbach A, Raino S, Rando R, Razzaque S, Recchia S, Reimer O, Reisenegger A, Renier Y, Rhode W, Ribeiro D, Ribo M, Richtler T, Rico J, Rieger F, Rinchiuso L, Rizi V, Rodriguez J, Fernandez GR, Ramirez JCR, Rojas G, Romano P, Romeo G, Rosado J, Rowell G, Rudak B, Russo F, Sadeh I, Hatlen ES, Safi-Harb S, Greus FS, Salina G, Sanchez D, Sanchez-Conde M, Sangiorgi P, Sano H, Santander M, Santos EM, Santos-Lima R, Sanuy A, Sarkar S, Saturni FG, Sawangwit U, Schussler F, Schwanke U, Sciacca E, Scuderi S, Seglar-Arroyo M, Sergijenko O, Servillat M, Seweryn K, Shalchi A, Sharma P, Shellard RC, Siejkowski H, Silk J, Siqueira C, Sliusar V, Sokolenko A, Sol H, Spencer S, Stamerra A, Stanic S, Starling R, Stolarczyk T, Straumann U, Striskovic J, Suda Y, Suomijarvi T, Swierk P, Tavecchio F, Taylor L, Tejedor LA, Teshima M, Testa V, Tibaldo L, Peixoto CJT, Tokanai F, Tonev D, Tosti G, Tosti L, Tothill N, Truzzi S, Travnicek P, Vagelli V, Vallage B, Vallania P, van Eldik C, Vandenbroucke J, Varner GS, Vassiliev V, Acosta MV, Vecchi M, Ventura S, Vercellone S, Vergani S, Verna G, Viana A, Vigorito CF, Vink J, Vitale V, Vorobiov S, Vovk I, Vuillaume T, Wagner SJ, Walter R, Watson J, Weniger C, White R, White M, Wiemann R, Wierzcholska A, Will M, Williams DA, Wischnewski R, Yanagita S, Yang L, Yoshikoshi T, Zacharias M, Zaharijas G, Zakaria AA, Zampieri L, Zanin R, Zaric D, Zavrtanik M, Zavrtanik D, Zdziarski AA, Zech A, Zechlin H, Zhdanov VI, Zivec M
(A1 Refereed original research article in a scientific journal)
- SMILE: Search for MIlli-LEnses (2021)
- Monthly Notices of the Royal Astronomical Society: Letters
Casadio C., Blinov D., Readhead A.C.S., Browne I.W.A., Wilkinson P.N., Hovatta T., Mandarakas N., Pavlidou V., Tassis K., Vedantham H.K., Zensus J.A., Diamantopoulos V., Dolapsaki K.E., Gkimisi K., Kalaitzidakis G., Mastorakis M., Nikolaou K., Ntormousi E., Pelgrims V., Psarras K.
(A1 Refereed original research article in a scientific journal)
