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

Links

ORCID

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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Detection of persistent VHE gamma-ray emission from PKS 1510-089 by the MAGIC telescopes during low states between 2012 and 2017 (2018)

Astronomy and Astrophysics
Acciari VA, Ansoldi S, Antonelli LA, Engels AA, Arcaro C, Baack D, Babic A, Banerjee B, Bangale P, de Almeida UB, Barrio JA, Bednarek W, Bernardini E, Berti A, Besenrieder J, Bhattacharyya W, Bigongiari C, Biland A, Blanch O, Bonnoli G, Carosi R, Ceribella G, Cikota S, Colak SM, Colin P, Colombo E, Contreras JL, Cortina J, Covino S, D'Elia V, Da Vela P, Dazzi F, De Angelis A, De Lotto B, Delfino M, Delgado J, Di Pierro F, Espinera ED, Dominguez A, Prester DD, Dorner D, Doro M, Einecke S, Elsaesser D, Ramazani VF, Fattorini A, Fernandez-Barral A, Ferrara G, Fidalgo D, Foffano L, Fonseca MV, Font L, Fruck C, Galindo D, Gallozzi S, Lopez RJG, Garczarczyk M, Gaug M, Giammaria P, Godinovic N, Guberman D, Hadasch D, Hahn A, Hassan T, Herrera J, Hoang J, Hrupec D, Inoue S, Ishio K, Iwamura Y, Kubo H, Kushida J, Kuvezdic D, Lamastra A, Lelas D, Leone F, Lindfors, Lombardi S, Longo F, Lopez M, Lopez-Oramas A, Maggio C, Majumdar P, Makariev M, Maneva G, Manganaro M, Mannheim K, Maraschi L, Mariotti M, Martinez M, Masuda S, Mazin D, Minev M, Miranda JM, Mirzoyan R, Molina E, Moralejo A, Moreno V, Moretti E, Munar-Adrover P, 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, Penil P, Peresano M, Persic M, Moroni PGP, Prandini E, Puljak I, Garcia JR, Rhode W, Ribo M, Rico J, Righi C, Rugliancich A, Saha L, Saito T, Satalecka K, Schweizer T, Sitarek J, Snidaric I, Sobczynska D, Somero A, Stamerra A, Strzys M, Suric T, Tavecchio F, Temnikov P, Terzic T, Teshima M, Torres-Alba N, Tsujimoto S, van Scherpenberg J, Vanzo G, Acosta MV, Vovk I, Ward JE, Will M, Zari D, Gonzalez JB, Raiteri CM, Sandrinelli A, Hovatta T, Kiehlmann S, Max-Moerbeck W, Tornikoski M, Lahteenmaki A, Tammi J, Ramakrishnan V, Thum C, Agudo I, Molina SN, Gomez JL, Fuentes A, Casadio C, Traianou E, Myserlis I, Kim JY
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

The First VHE Detection of the Blazar S4 0954+65 with the MAGIC Telescopes during an Exceptionally High Optical State (2017)

High energy gamma-ray astronomy: 6th international meeting on high energy gamma-ray astronomy, AIP Conference Proceedings
Pedaletti G, Manganaro M, Doert M, Lindfors E, Rosillo MN, Ramazani VF, Gonzalez JB, Tanakas Y, Ojha R, Finke J, Jorstad S, Marscher A, Larionov V, Borman G, Troitsky I, Lahteenmaki A, Tornikoski M, Hovatta T
(Vertaisarvioitu artikkeli konferenssijulkaisussa (A4))

PKS 1954-388: RadioAstron Detection on 80,000 km Baselines and Multiwavelength Observations (2017)

Publications of the Astronomical Society of Australia
Edwards PG, Kovalev YY, Ojha R, An H, Bignall H, Carpenter B, Hovatta T, Stevens J, Voytsik P, Andrianov AS, Dutka M, Hase H, Horiuchi S, Jauncey DL, Kadler M, Lisakov M, Lovell JEJ, McCallum J, Muller C, Phillips C, Plotz C, Quick J, Reynolds C, Schulz R, Sokolovsky KV, Tzioumis AK, Zuga V, Zuga V
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

Bimodal radio variability in OVRO-40 m-monitored blazars (2017)

Monthly Notices of the Royal Astronomical Society
I. Liodakis, V. Pavlidou, T. Hovatta, W. Max-Moerbeck, T. J. Pearson, J. L. Richards, A. C. S. Readhead
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))
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