Seppo Mattila - UTU Research Portal

Seppo Mattila

- Professor,
Tuorla Observatory (Department of Physics and Astronomy)

Department of Physics and Astronomy

sepmat@utu.fi

+358 29 450 4518

+358 50 412 5859

Vesilinnantie 5

Turku

: https://orcid.org/0000-0001-7497-2994

I received my PhD degree from Imperial College, Univ. of London in 2002. After this I held postdoctoral positions at Stockholm University, Helsinki University of Technology (now Aalto University) and Queen's University Belfast. I moved back to Finland in 2007 with an Academy of Finland Research Fellowship to work at Tuorla Observatory at University of Turku. Between 2012 and 2015 I worked at the Finnish Centre for Astronomy with ESO (FINCA) as a University Researcher. I was appointed as a Professor of Astronomy at the Department of Physics and Astronomy at University of Turku in 2015. After 2010 I have made extended research visits to Stockholm University (18 months) and to University of Cambridge, UK (10 months). I have been the Finnish delegate in the European Southern Observatory (ESO) Council since 2020 and in the International Scientific Committee (CCI) of the Roque de los Muchachos and Teide observatories since 2019. Since 2022 I have also served as the President of the CCI. I am currently also the President of the Finnish National Committee for Astronomy and a member of the Nordic Optical Telescope (NOT) Council and the board of FINCA, and a vice member of the board of the Univ. of Turku Faculty of Science. In 2022 I was invited as a member of the Finnish Academy of Science and Letters.

My main research interests focus on observational work on extragalactic astrophysical transients, including supernovae, tidal disruption events, and kilonovae. For more details on my research and information on the research group please see https://sites.utu.fi/sne/. For a complete list of my refereed journal papers see ADS (in chronological order) or ADS (ordered by number of citations).

Selected recent papers:

Kool et al. (incl. Mattila) 2023, Nature: A radio-detected type Ia supernova with helium-rich circumstellar material

Pasham et al. (incl. Mattila) 2023, Nature Astronomy: The Birth of a Relativistic Jet Following the Disruption of a Star by a Cosmological Black Hole

Nagao, Mattila et al. 2023, A&A: Spectropolarimetry of Type II supernovae. I. Sample, observational data, and interstellar polarization

Reynolds, Mattila et al. 2022, A&A: Energetic nuclear transients in luminous and ultraluminous infrared galaxies

Perez-Torres, Mattila et al. 2021, The Astronomy and Astrophysics Review: Star formation and nuclear activity in luminous infrared galaxies: An infrared through radio review

Kool, Reynolds, Mattila et al. 2020, MNRAS: AT2017gbl: a dust obscured TDE candidate in a luminous infrared galaxy

Ackley et al. (incl. Mattila) 2020, A&A: Observational constraints on the optical and near-infrared emission from the neutron star-black hole binary merger S190814bv

Reynolds, Fraser, Mattila et al. 2020, MNRAS: SN 2016gsd: An unusually luminous and linear type II supernova with high velocities

Mattila et al. 2018, Science: A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger

Smartt et al. (incl. Mattila) 2017, Nature: A kilonova as the electromagnetic counterpart to a gravitational-wave source

Abbott et al. (imcl. Mattila) 2017, ApJ: Multi-messenger Observations of a Binary Neutron Star Merger

Kankare, Kotak, Mattila et al. 2017, Nature Astronomy: A population of highly energetic transient events in the centres of active galaxies

Kangas, Blagorodnova, Mattila et al. 2017, MNRAS: Gaia 16apd - a link between fast- and slowly-declining superluminous supernovae

Kangas, Portinari, Mattila et al. 2017, A&A: Core-collapse supernova progenitor constraints using the spatial distribution of massive stars in local galaxies

I have taught several courses in astronomy, astrophysics and signal and image processing at the Univ. of Turku. In particular, I initiated two new observational astronomy courses currently offered at national level for students from Turku, Helsinki, Oulu and the Aalto University. These courses offer hands-on experience on the use of the Nordic Optical Telescope (NOT) remotely from Univ. of Turku (Observational Techniques Using the Nordic Optical Telescope) and on the science exploitation of data from the European Southern Observatory (ESO; Data Processing Techniques for Astronomy with ESO Instrumentation). Currently I teach also the BSc course on observational astronomy and the MSc courses Spectroscopic Diagnostics in Astrophysics and Signal and Image Processing. In my teaching I always try to make use of examples from the latest research in order to offer a motivating learning experience for the students.

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Erratum: Low luminosity Type II supernovae - III. SN 2018hwm, a faint event with an unusually long plateau (vol 501, pg 1059, 2021) (2021)
- Monthly Notices of the Royal Astronomical Society
Reguitti A, Pumo ML, Mazzali PA, Pastorello A, Pignata G, Elias-Rosa N, Prentice SJ, Reynolds T, Benetti S, Mattila S, Kuncarayakti H, Rodriguez O
How low can you go? SN 2018zd as a low-mass Fe core-collapse supernova (2021)
- arXiv.org
Callis E., Fraser M., Pastorello A., Dong Subo, Brennan S. J., Chen P., Bose S., Reynolds T., Salmon L., Jonker P., Benetti S., Berton M., Cannizzaro G., Cappellaro E., Congiu E., Dyrbye S., Eappachen D., Elias-Rosa N., Gromadzki M., Gutiérrez C. P., Holmbo S., Holoien T. W. S., Itagaki K., Kankare E., Mattila S., Mutel R., Ochner P., Post R. S., Prieto J., Reguitti A., Roth T., Ryon J., Sagués-Carracedo A., Shappee B. J., Siviero A., Stassun K. G., Stritzinger M., Tomasella L., Villanueva S. Jr., Wevers T., Wiggins P.
Light-curve classification with recurrent neural networks for GOTO: dealing with imbalanced data (2021)
- Monthly Notices of the Royal Astronomical SocietyPublications of the Astronomical Society of Australia
Burhanudin UF, Maund JR, Killestein T, Ackley K, Dyer MJ, Lyman J, Ulaczyk K, Cutter R, Mong YL, Steeghs D, Galloway DK, Dhillon V, O'Brien P, Ramsay G, Noysena K, Kotak R, Breton RP, Nuttall L, Palle E, Pollacco D, Thrane E, Awiphan S, Chote P, Chrimes A, Daw E, Duffy C, Eyles-Ferris R, Gompertz B, Heikkila T, Irawati P, Kennedy MR, Levan A, Littlefair S, Makrygianni L, Mata-Sanchez D, Mattila S, McCormac J, Mkrtichian D, Mullaney J, Sawangwit U, Stanway E, Starling R, Strom P, Tooke S, Wiersema K
Low-luminosity Type II supernovae - III. SN 2018hwm, a faint event with an unusually long plateau (2021)
- Monthly Notices of the Royal Astronomical Society
Reguitti A, Pumo ML, Mazzali PA, Pastorello A, Pignata G, Elias-Rosa N, Prentice SJ, Reynolds T, Benetti S, Rodrìguez O, Mattila S, Kuncarayakti H
Processing GOTO data with the Rubin Observatory LSST Science Pipelines I: Production of coadded frames (2021)
- Publications of the Astronomical Society of Australia
Mullaney J. R., Makrygianni L., Dhillon V., Littlefair S., Ackley K., Dyer M., Lyman J., Ulaczyk K., Cutter R., Mong Y.-L., Steeghs D., Galloway D. K., O’Brien P., Ramsay G., Poshyachinda S., Kotak R., Nuttall L., Pallé E., Pollacco D., Thrane E., Aukkaravittayapun S., Awiphan S., Breton R., Burhanudin U., Chote P., Chrimes A., Daw E., Duffy C., Eyles-Ferris R., Gompertz B., Heikkilä T., Irawati P., Kennedy M., Killestein T., Levan A., Marsh T., Mata-Sanchez D., Mattila S., Maund J., McCormac J., Mkrtichian D., Rol E., Sawangwit U., Stanway E., Starling R., Tooke S., Wiersema K.
Processing GOTO survey data with the Rubin Observatory LSST Science Pinelines II: Forced Photometry and lightcurves (2021)
Makrygianni L, Mullaney J, Dhillon V, Littlefair S, Ackley K, Dyer MJ, Lyman J, Ulaczyk K, Cutter R, Mong YL, Steeghs D, Galloway DK, O'Brien P, Ramsay G, Poshyachinda S, Kotak R, Nuttall L, Palle E, Pollacco D, Thrane E, Aukkaravittayapun S, Awiphan S, Breton RP, Burhanudin U, Chote P, Chrimes A, Daw E, Duffy C, Eyles-Ferris R, Gompertz B, Heikkila T, Irawati P, Kennedy M, Killestein T, Levan A, Marsh T, Mata-Sanchez D, Mattila S, Maund J, McCormac J, Mkrtichian D, Rol E, Sawangwit U, Stanway E, Starling R, Strom PA, Tooke S, Wiersema K
Radio detection of the TDE AT 2021sdu at 5.1 GHz with e-MERLIN #15097 (2021) Astronomer's Telegram Moldon Javier, Perez-Torres Miguel, Kool Erik, Mattila Seppo, Reynolds Thomas
Revisiting the progenitor of the low-luminosity type II-plateau supernova, SN 2008bk (2021)
- Astronomy and Astrophysics
O'Neill D., Kotak R., Fraser M., Mattila S., Pietrzyński G., Prieto J. L.
Searching for Fermi GRB optical counterparts with the prototype Gravitational-wave Optical Transient Observer (GOTO) (2021)
- Monthly Notices of the Royal Astronomical Society
Mong Y.L., Ackley K., Galloway D.K., Dyer M., Cutter R., Brown M.J.I., Lyman J., Ulaczyk K., Steeghs D., Dhillon V., O'Brien P., Ramsay G., Noysena K., Kotak R., Breton R., Nuttall L., Pallé E., Pollacco D., Thrane E., Awiphan S., Burhanudin U., Chote P., Chrimes A., Daw E., Duffy C., Eyles-Ferris R., Gompertz B., Heikkilä T., Irawati P., Kennedy M., Killestein T., Levan A., Littlefair S., Makrygianni L., Marsh T., Mata-Sanchez D., Mattila S., Maund J., McCormac J., Mkrtichian D., Mullaney J., Rol E., Sawangwit U., Stanway E., Starling R., Strøm P., Tooke S., Wiersema K.
SN 2013ai: A Link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae (2021)
- Astrophysical Journal
Davis S, Pessi PJ, Fraser M, Ertini K, Martinez L, Hoeflich P, Hsiao EY, Folatelli G, Ashall C, Phillips MM, Anderson JP, Bersten M, Englert B, Fisher A, Benetti S, Bunzel A, Burns C, Chen TW, Contreras C, Elias-Rosa N, Falco E, Galbany L, Kirshner RP, Kumar S, Lu J, Lyman JD, Marion GH, Mattila S, Maund J, Morrell N, Seron J, Stritzinger M, Shahbandeh M, Sullivan M, Suntzeff NB, Young DR
Star formation and nuclear activity in luminous infrared galaxies: an infrared through radio review (2021)
- Astronomy and Astrophysics Review
Pérez-Torres Miguel, Mattila Seppo, Alonso-Herrero Almudena, Aalto Susanne, Efstathiou Andreas
The double-peaked Type Ic supernova 2019cad: another SN 2005bf-like object (2021)
- Monthly Notices of the Royal Astronomical Society
Gutierrez CP, Bersten MC, Orellana M, Pastorello A, Ertini K, Folatelli G, Pignata G, Anderson JP, Smartt S, Sullivan M, Pursiainen M, Inserra C, Elias-Rosa N, Fraser M, Kankare E, Moran S, Reguitti A, Reynolds TM, Stritzinger M, Burke J, Frohmaier C, Galbany L, Hiramatsu D, Howell DA, Kuncarayakti H, Mattila S, Muller-Bravo T, Pellegrino C, Smith M
Transient Classification Report for 2021-05-05 #2021-1480 (2021) Transient Name Server Classification Report Moran Shane, Kotak Rubina, Mattila Seppo, Fraser Morgan
Transient-optimized real-bogus classification with Bayesian convolutional neural networks - sifting the GOTO candidate stream (2021)
- Monthly Notices of the Royal Astronomical Society
Killestein TL, Lyman J, Steeghs D, Ackley K, Dyer MJ, Ulaczyk K, Cutter R, Mong YL, Galloway DK, Dhillon V, O'Brien P, Ramsay G, Poshyachinda S, Kotak R, Breton RP, Nuttall LK, Palle E, Pollacco D, Thrane E, Aukkaravittayapun S, Awiphan S, Burhanudin U, Chote P, Chrimes A, Daw E, Duffy C, Eyles-Ferris R, Gompertz B, Heikkila T, Irawati P, Kennedy MR, Levan A, Littlefair S, Makrygianni L, Sanchez DM, Mattila S, Maund J, McCormac J, Mkrtichian D, Mullaney J, Rol E, Sawangwit U, Stanway E, Starling R, Strom PA, Tooke S, Wiersema K, Williams SC
AT 2017gbl: a dust obscured TDE candidate in a luminous infrared galaxy (2020)
- Monthly Notices of the Royal Astronomical Society
E C Kool, T M Reynolds, S Mattila, E Kankare, M A Pérez-Torres, A Efstathiou, S Ryder, C Romero-Cañizales, W Lu, T Heikkilä, G E Anderson, M Berton, J Bright, G Cannizzaro, D Eappachen, M Fraser, M Gromadzki, P G Jonker, H Kuncarayakti, P Lundqvist, K Maeda, R M McDermid, A M Medling, S Moran, A Reguitti, M Shahbandeh, S Tsygankov, V U, T Wevers
Design and development of the SOXS calibration unit (2020)
- Proceedings of SPIE : the International Society for Optical Engineering
Proceedings of SPIE: Ground-based and Airborne Instrumentation for Astronomy VIII Hanindyo Kuncarayakti, Jani Achrén, Sergio Campana, Riccardo Claudi, Pietro Schipani, Matteo Aliverti, Andrea Baruffolo, Sagi Ben-Ami, Federico Biondi, Giulio Capasso, Rosario Cosentino, Francesco D'Alessio, Paolo D'Avanzo, Ofir Hershko, Marco Landoni, Matteo Munari, Giuliano Pignata, Adam Rubin, Salvatore Scuderi, Fabrizio Vitali, David Young, José Antonio Araiza-Duran, Iair Arcavi, Anna Brucalassi, Rachel Bruch, Enrico Cappellaro, Mirko Colapietro, Massimo Della Valle, Marco De Pascale, Rosario Di Benedetto, Sergio D'Orsi, Avishay Gal-Yam, Matteo Genoni, Marcos Hernandez, Jari Kotilainen, Gianluca Li Causi, Seppo Mattila, Kalyan Radhakrishnan, Michael Rappaport, Davide Ricci, Marco Riva, Bernardo Salasnich, Stephen Smartt, Ricardo Zanmar Sanchez, Maximilian Stritzinger, Hector Ventura
Development status of the SOXS instrument control software (2020)
- Proceedings of SPIE : the International Society for Optical Engineering
Proceedings Volume 11452, Software and Cyberinfrastructure for Astronomy VI Sanchez R.Z., Stritzinger M., Ventura H., Radhakrishnan K., Mattila S., Rappaport M., Riva M., Smartt S., Baruffolo A., Ricci D., De Pascale M., Salasnich B., Claudi R., Campana S., Ben-Ami S., Biondi F., Schipani P., Aliverti M., D'Alessio F., D'Avanzo P., Capasso G., Cosentino R., Landoni M., Munari M., Hershko O., Kuncarayakti H., Scuderi S., Vitali F., Pignata G., Rubin A., Arcavi I., Araiza-Durán J.A., Achrén J.M., Young D., Colapietro M., Cappellaro E., Bruch R., Brucalassi A., Gal-Yam A., D'Orsi S., Di Benedetto R., Della Valle M., Li Causi G., Kotilainen J., Hernandez M., Genoni M.
Development status of the SOXS spectrograph for the ESO-NTT telescope (2020)
- Proceedings of SPIE : the International Society for Optical Engineering
Proceedings of SPIE: Ground-based and Airborne Instrumentation for Astronomy VIII P. Schipani, S. Campana, R. Claudi, M. Aliverti, A. Baruffolo, S. Ben-Ami, F. Biondi, G. Capasso, R. Cosentino, F. D'Alessio, P. D'Avanzo, O. Hershko, H. Kuncarayakti, M. Landoni, M. Munari, G. Pignata, A. Rubin, S. Scuderi, F. Vitali, D. Young, J. Achrén, J. A. Araiza-Duran, I. Arcavi, A. Brucalassi, R. Bruch, E. Cappellaro, M. Colapietro, M. Della Valle, M. De Pascale, R. Di Benedetto, S. D'Orsi, A. Gal-Yam, M. Genoni, M. Hernandez, J. Kotilainen, G. Li Causi, S. Mattila, K. Radhakrishnan, M. Rappaport, D. Ricci, M. Riva, Bernardo. Salasnich, S. Savarese, S. Smartt, R. Zanmar Sanchez, M. Stritzinger, H. Ventura, L. Pasquini, M. Schöller, H.-U. Kaüfl, M. Accardo, L. Mehrgan, E. Pompei
Development status of the UV-VIS detector system of SOXS for the ESO-NTT telescope (2020)
- Proceedings of SPIE : the International Society for Optical Engineering
Proceedings of SPIE: Ground-based and Airborne Instrumentation for Astronomy VIII Rosario Cosentino, Marcos Hernandez, Hector Ventura, Sergio Campana, Riccardo Claudi, Pietro Schipani, Matteo Aliverti, Andrea Baruffolo, Sagi Ben-Ami, Federico Biondi, Giulio Capasso, Francesco D'Alessio, Paolo D'Avanzo, Ofir Hershko, Hanindyo Kuncarayakti, Marco Landoni, Matteo Munari, Giuliano Pignata, Adam Rubin, Salvatore Scuderi, Fabrizio Vitali, David Young, Jani Achrén, José Antonio Araiza-Durán, Iair Arcavi, Anna Brucalassi, Rachel Bruch, Enrico Cappellaro, Mirko Colapietro, Massimo Della Valle, Marco De Pascale, Rosario Di Benedetto, Sergio D'Orsi, Avishay Gal-Yam, Matteo Genoni, Jari Kotilainen, Gianluca Li Causi, Seppo Mattila, Michael Rappaport, Kalyan Radhakrishnan, Davide Ricci, Marco Riva, Bernardo Salasnich, Stephen Smartt, Ricardo Zanmar Sanchez, Maximilian Stritzinger, Matteo Accardo, Leander H. Mehrgan, Derek Ives, Josh Hopgood
Direct Evidence of Two-component Ejecta in Supernova 2016gkg from Nebular Spectroscopy* (2020)
- Astrophysical Journal
Kuncarayakti H, Folatelli G, Maeda K, Dessart L, Jerkstrand A, Anderson JP, Aoki K, Bersten MC, Ferrari L, Galbany L, Garcia F, Gutierrez CP, Hattori T, Kawabata KS, Kravtsov T, Lyman JD, Mattila S, Olivares EF, Sanchez SF, Van Dyk SD