Teppo Heikkilä - UTU Research Portal

Teppo Heikkilä

- Doctoral Researcher,
Tuorla Observatory (Department of Physics and Astronomy)

ttheik@utu.fi

: https://orcid.org/0000-0002-7845-8965

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A study in scarlet. II. Spectroscopic properties of a sample of intermediate-luminosity red transients (2025)
- Astronomy and AstrophysicsPublications of the Astronomical Society of Australia
Valerin, G.; Pastorello, A.; Mason, E.; Reguitti, A.; Benetti, S.; Cai, Y.-Z.; Chen, T.-W.; Eappachen, D.; Elias-Rosa, N.; Fraser, M.; Gangopadhyay, A.; Hsiao, E.; Howell, D.; Inserra, C.; Izzo, L.; Jencson, J.; Kankare, E.; Kotak, R.; Lundqvist, P.; Mazzali, P.; Misra, K.; Pignata, G.; Prentice, S.; Sand, D.; Smartt, S.; Stritzinger, M.; Tartaglia, L.; Valenti, S.; Anderson, J.; Andrews, J.; Amaro, R.; Barbarino, C.; Brennan, S.; Bufano, F.; Callis, E.; Cappellaro, E.; Dastidar, R.; Della, Valle; Fiore, A.; Fulton, M.; Galbany, L.; Gromadzki, M.; Heikkilä, T.; Hiramatsu, D.; Karamehmetoglu, E.; Kuncarayakti, H.; Leloudas, G.; Limongi, M.; Lundquist, M.; McCully, C.; Müller-Bravo, T.; Nicholl, M.; Ochner, P.; Padilla, Gonzalez; Paraskeva, E.; Pellegrino, C.; Rau, A.; Reichart, D.; Reynolds, T.; Roy, R.; Salmaso, I.; Shahbandeh, M.; Singh, M.; Sollerman, J.; Turatto, M.; Tomasella, L.; Wyatt, S.; Young, D.
A study in scarlet I. Photometric properties of a sample of intermediate-luminosity red transients (2025)
- Astronomy and Astrophysics
Valerin, G.; Pastorello, A.; Reguitti, A.; Benetti, S.; Cai, Y.-Z.; Chen, T.-W.; Eappachen, D.; Elias-Rosa, N.; Fraser, M.; Gangopadhyay, A.; Hsiao E., Y.; Howell D., A.; Inserra, C.; Izzo, L.; Jencson, J.; Kankare, E.; Kotak, R.; Mazzali P., A.; Misra, K.; Pignata, G.; Prentice S., J.; Sand D., J.; Smartt S., J.; Stritzinger M., D.; Tartaglia, L.; Valenti, S.; Anderson J., P.; Andrews J., E.; Amaro R., C.; Brennan, S.; Bufano, F.; Callis, E.; Cappellaro, E.; Dastidar, R.; Della Valle, M.; Fiore, A.; Fulton M., D.; Galbany, L.; Heikkilä, T.; Hiramatsu, D.; Karamehmetoglu, E.; Kuncarayakti, H.; Leloudas, G.; Lundquist, M.; McCully, C.; Müller-Bravo T., E.; Nicholl, M.; Ochner, P.; Padilla Gonzalez, E.; Paraskeva, E.; Pellegrino, C.; Rau, A.; Reichart D., E.; Reynolds T., M.; Roy, R.; Salmaso, I.; Singh, M.; Turatto, M.; Tomasella, L.; Wyatt, S.; Young D., R.
GRB 230911A: The First Discovery of a Fermi GRB Optical Counterpart with the Gravitational-wave Optical Transient Observer (GOTO) (2024)
- Research Notes of the AAS
Belkin, S.; Gompertz, B. P.; Kumar, A.; Ackley, K.; Galloway, D. K.; Jiménez-Ibarra, F.; Killestein, T. L.; O’Neill, D.; Wiersema, K.; Malesani, D. B.; Levan, A. J.; Lyman, J.; Dyer, M. J.; Ulaczyk, K.; Steeghs, D.; Dhillon, V. S.; O’Brien, P.; Ramsay, G.; Noysena, K.; Kotak, R.; Breton, R. P.; Nuttall, L. K.; Pallé, E.; Pollacco, D.; Awiphan, S.; Burhanudin, U.; Chote, P.; Chrimes, A.; Daw, E.; Duffy, C.; Eyles-Ferris, R.; Godson, B.; Heikkilä, T.; Irawati, P.; Kelsey, L.; Kennedy, M. R.; Littlefair, S.; Makrygianni, L.; Marsh, T.; Mata Sánchez, D.; Mattila, S.; Maund, J.; McCormac, J.; Mkrtichian, D.; Mullaney, J.; Patel, M.; Rana, J.; Rol, E.; Sawangwit, U.; Stanway, E.; Starling, R.; Strøm, P. A.; Warwick, B.
Light-curve Structure and Hα Line Formation in the Tidal Disruption Event AT 2019azh (2024)
- Astrophysical Journal
Faris, Sara; Arcavi, Iair; Makrygianni, Lydia; Hiramatsu, Daichi; Terreran, Giacomo; Farah, Joseph; Howell, D. Andrew; McCully, Curtis; Newsome, Megan; Padilla Gonzalez, Estefania; Pellegrino, Craig; Bostroem, K. Azalee; Abojanb, Wiam; Lam, Marco C.; Tomasella, Lina; Brink, Thomas G.; Filippenko, Alexei V.; French, K. Decker; Clark, Peter; Graur, Or; Leloudas, Giorgos; Gromadzki, Mariusz; Anderson, Joseph P.; Nicholl, Matt; Gutiérrez, Claudia P.; Kankare, Erkki; Inserra, Cosimo; Galbany, Lluís; Reynolds, Thomas; Mattila, Seppo; Heikkilä, Teppo; Wang, Yanan; Onori, Francesca; Wevers, Thomas; Coughlin, Eric R.; Charalampopoulos, Panos; Johansson, Joel
Self-supervised clustering on image-subtracted data with deep-embedded self-organizing map (2023)
- Monthly Notices of the Royal Astronomical Society
Mong Y-L, Ackley K, Killestein T L, Galloway D K, Vassallo C, 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 P, Heikkilä T, Irawati P, Kennedy M, Levan A, Littlefair S, Makrygianni L, Marsh T, Mata Sánchez D, Mattila S, Maund J R, McCormac J, Mkrtichian D, Mullaney J, Rol E, Sawangwit U, Stanway E, Starling R, Strøm P, Tooke S, Wiersema K
The Gravitational-wave Optical Transient Observer (GOTO): Prototype performance and prospects for transient science (2022)
- Monthly Notices of the Royal Astronomical Society
Steeghs D., Galloway D.K., Ackley K., Dyer M.J., Lyman J., Ulaczyk K., Cutter R., Mong Y.L., Dhillon V., O'Brien P., Ramsay G., Poshyachinda S., Kotak Rubina., Nuttall L.K., Pallé E., Breton R.P., Pollacco D., Thrane E., Aukkaravittayapun S., Awiphan S., Burhanudin U., Chote P., Chrimes A., Daw E., Duffy C., Eyles-Ferris R., Gompertz B., Heikkilä Teppo, Irawati P., Kennedy M.R., Killestein T., Kuncarayakti Hanindyo, Levan A.J., Littlefair S., Makrygianni L., Marsh T., Mata-Sanchez D., Mattila Seppo, Maund J., McCormac J., Mkrtichian D., Mullaney J., Noysena K., Patel M., Rol E., Sawangwit U., Stanway E.R., Starling R., Strøm P., Tooke S., West R., White D.J., Wiersema K.
Light-curve classification with recurrent neural networks for GOTO: dealing with imbalanced data (2021)
- Monthly Notices of the Royal Astronomical Society
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
Processing GOTO data with the Rubin Observatory LSST Science Pipelines I: Production of coadded frames (2021)
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)
- Publications of the Astronomical Society of Australia
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
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.
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
GRB 200303A: GOTO observations upper limit (2020) GCN circular Mong Y-L, Ackley K, Galloway DK, Steeghs D, Dhillon V, O'Brien P, Ramsay G, Pollacco D, Thrane E, Poshyachinda S, Kotak R, Nuttall L, Pallé E, Ulaczyk K, Lyman J, Cutter R, Levan A, Marsh T, West R, Stanway E, Gompertz B, Wiersema K, Killestein T, Casey A, Brown M, Muller B, Dyer M, Mullaney J, Daw E, Littlefair S, Maund J, Makrygianni L, Burhanudin U, Starling R, Eyles R, Tooke S, Aukkaravittayapun S, Sawangwit U, Awiphan S, Mkrtichian D, Irawati P, Mattila S, Heikkil"a T, Rol E; Goto Collaboration
GRB 200306C: GOTO upper limits (2020) GCN circular Ackley K., Wiersema K., Mong Y. -L., Galloway D. K., Steeghs D., Dhillon V., O'Brien P., Ramsay G., Pollacco D., Thrane E., Poshyachinda S., Kotak R., Nuttall L., Pallé E., Ulaczyk K., Lyman J., Cutter R., Levan A., Marsh T., West R., Stanway E., Gompertz B., Killestein T., Casey A., Brown M., Muller B., Dyer M., Mullaney J., Daw E., Littlefair S., Maund J., Makrygianni L., Burhanudin U., Starling R., Eyles R., Tooke S., Aukkaravittayapun S., Sawangwit U., Awiphan S., Mkrtichian D., Irawati P., Mattila S., Heikkilä T., Rol E., GOTO Collaboration
GRB 200723A: GOTO candidate afterglow and host galaxy (2020) GCN Circular Gompertz B, Wiersema K, Galloway DK, Starling R, Lyman J, Ackley K, Mong Y-L, Steeghs D, Dhillon V, O'Brien P, Ramsay G, Pollacco D, Thrane E, Poshyachinda S, Kotak R, Nuttall L, Palle E, Ulaczyk K, Cutter R, Levan A, Marsh T, West R, Stanway E, Killestein T, Casey A, Brown M, Muller B, Dyer M, Mullaney J, Daw E, Littlefair S, Maund J, Makrygianni L, Burhanudin U, Eyles R, Tooke S, Aukkaravittayapun S, Sawangwit U, Awiphan S, Mkrtichian D, Irawati P, Mattila S, Heikkilä T, Rol E; GOTO Collaboration
LIGO/Virgo S200213t: No notable candidates in GOTO imaging (2020) GCN circular Cutter R, Ackley K, Gompertz BP, Lyman J, Ramsay G, Ulaczyk K, Galloway DK, Stanway E, Killestein T, Wiersema K, Kennedy M, Steeghs D, Dyer M, Dhillon V, O'Brien P, Pollacco D, Thrane E, Poshyachinda S, Mattila S, Nuttall L, Palle E, Levan A, Marsh T, West R, Mong Y-, Casey A, Brown M, Muller B, Mullaney J, Daw E, Littlefair S, Maund J, Makrygianni L, Starling R, Eyles R, Tooke S, Aukkaravittayapun S, Sawangwit U, Awiphan S, Mkrtichian D, Irawati P, Kotak R, Heikkila T, Rol E; Goto Collaboration
LIGO/Virgo S200225q: No notable candidates in GOTO imaging (2020) GCN circular Ackley K, Mong Y-L, Galloway DK, Steeghs D, Dhillon V, O'Brien P, Ramsay G, Pollacco D, Thrane E, Poshyachinda S, Kotak R, Nuttall L, Pallé E, Ulaczyk K, Lyman J, Cutter R, Levan A, Marsh T, West R, Stanway E, Gompertz B, Wiersema K, Killestein T, Casey A, Brown M, Muller B, Dyer M, Mullaney J, Daw E, Littlefair S, Maund J, Makrygianni L, Burhanudin U, Starling R, Eyles R, Tooke S, Aukkaravittayapun S, Sawangwit U, Awiphan S, Mkrtichian D, Irawati P, Mattila S, Heikkilä T, Rol E; GOTO Collaboration
LIGO/Virgo S200302c: No notable candidates in GOTO imaging (2020) GCN circular Mong Y-L, Ackley K, Galloway DK, Steeghs D, Dhillon V, O'Brien P, Ramsay G, Pollacco D, Thrane E, Poshyachinda S, Kotak R, Nuttall L, Pallé E, Ulaczyk K, Lyman J, Cutter R, Levan A, Marsh T, West R, Stanway E, Gompertz B, Wiersema K, Killestein T, Casey A, Brown M, Muller B, Dyer M, Mullaney J, Daw E, Littlefair S, Maund J, Makrygianni L, Burhanudin U, Starling R, Eyles R, Tooke S, Aukkaravittayapun S, Sawangwit U, Awiphan S, Mkrtichian D, Irawati P, Mattila S, Heikkilä T, Rol E; GOTO Collaboration
Machine learning for transient recognition in difference imaging with minimum sampling effort (2020)
- Monthly Notices of the Royal Astronomical Society
Mong YL, Ackley K, Galloway DK, Killestein T, Lyman J, Steeghs D, Dhillon V, O'Brien PT, Ramsay G, Poshyachinda S, Kotak R, Nuttall L, Palle E, Pollacco D, Thrane E, Dyer MJ, Ulaczyk K, Cutter R, McCormac J, Chote P, Levan AJ, Marsh T, Stanway E, Gompertz B, Wiersema K, Chrimes A, Obradovic A, Mullaney J, Daw E, Littlefair S, Maund J, Makrygianni L, Burhanudin U, Starling RLC, Eyles-Ferris RAJ, Tooke S, Duffy C, Aukkaravittayapun S, Sawangwit U, Awiphan S, Mkrtichian D, Irawati P, Mattila S, Heikkila T, Breton R, Kennedy M, Sanchez DM, Rol E
Observational constraints on the optical and near-infrared emission from the neutron star-black hole binary merger candidate S190814bv (2020)
- Astronomy and Astrophysics
Ackley K., Amati L., Barbieri C., Bauer F. E., Benetti S., Bernardini M. G., Bhirombhakdi K., Botticella M. T., Branchesi M., Brocato E., Bruun S. H., Bulla M., Campana S., Cappellaro E., Castro-Tirado A. J., Chambers K. C., Chaty S., Chen T. -W., Ciolfi R., Coleiro A. Copperwheat C. M., Covino S., Cutter R., D'Ammando F., D'Avanzo P., De Cesare G., D'Elia V., Della Valle M., Denneau L., De Pasquale M., Dhillon V. S., Dyer M. J., Elias-Rosa N., Evans P. A., Eyles-Ferris R. A. J., Fiore A., Fraser M., Fruchter A. S., Fynbo J. P. U., Galbany L., Gall C., Galloway D. K., Getman F. I., Ghirlanda G., Gillanders J. H., Gomboc A., Gompertz B. P., González-Fernández C., González-Gaitán S., Grado A., Greco G., Gromadzki M., Groot P. J., Gutiérrez C. P., Heikkilä T., Heintz K. E., Hjorth J., Hu Y. -D., Huber M. E., Inserra C., Izzo L., Japelj J., Jerkstrand A., Jin Z. P., Jonker P. G., Kankare E., Kann D. A., Kennedy M., Kim S., Klose S., Kool E. C., Kotak R., Kuncarayakti H., Lamb G. P., Leloudas G., Levan A. J., Longo F., Lowe T. B., Lyman J. D., Magnier E., Maguire K., Maiorano E., Mandel I., Mapelli M., Mattila S., McBrien O. R., Melandri A., Michałowski M. J., Milvang-Jensen B., Moran S., Nicastro L., Nicholl M., Nicuesa Guelbenzu A., Nuttal L., Oates S. R., O'Brien P. T., Onori F., Palazzi E., Patricelli B., Perego A., Torres M. A. P., Perley D. A., Pian E., Pignata G., Piranomonte S., Poshyachinda S., Possenti A., Pumo M. L., Quirola-Vásquez J., Ragosta F., Ramsay G., Rau A., Rest A., Reynolds T. M., Rosetti S. S., Rossi A., Rosswog S., Sabha N. B., Sagués Carracedo A., Salafia O. S., Salmon L., Salvaterra R., Savaglio S., Sbordone L., Schady P., Schipani P., Schultz A. S. B., Schweyer T., Smartt S. J., Smith K. W., Smith M., Sollerman J., Srivastav S., Stanway E. R., Starling R. L. C., Steeghs D., Stratta G., Stubbs C. W., Tanvir N. R., Testa V., Thrane E., Tonry J. L., Turatto M., Ulaczyk K., van der Horst A. J., Vergani S. D., Walton N. A., Watson D., Wiersema K., Wiik K., Wyrzykowski Ł., Yang S., Yi S. -X., Young D. R.