SN 2020jfo

Supernova 2020jfo is the bright star inside the Messier 61 galaxy.
Type II (peculiar)
Date	May 06, 2020
Constellation	Virgo
Right ascension	4h 28m 54.05s
Declination	12° 21′ 50.480″
Epoch	J2000
Distance	0.00502 redshift
Host	Messier 61
Notable features	Detailed data on progenitor star in archives
Peak apparent magnitude	+16.01
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SN 2020jfo was a type II supernova in the Messier 61 galaxy, first observed on 6 May 2020 with an apparent magnitude of 16.01. It was one of the first supernovae for which independent, multi-instrument data was collected before, during, and after the explosion.^[1] Large astronomical surveys like Transiting Exoplanet Survey Satellite (TESS) and Pan-STARRS have played a role in data collection before and after these events.^[2][3][4]

1. ^ Dvorsky, George (October 22, 2021). "Observations of Exploding Star in 'Real Time' Deemed a Major Step Towards Predicting Supernovas". Gizmodo.
2. ^ Sollerman, J. (July 30, 2021). "The Type II supernova SN 2020jfo in M 61, implications for progenitor system, and explosion dynamics". Astronomy & Astrophysics. 655: A105. arXiv:2107.14503. Bibcode:2021A&A...655A.105S. doi:10.1051/0004-6361/202141374. S2CID 239388865.
3. ^ Vallely, P.J.; Kocanek, CS; Stanek, KZ; Fausnaugh, M; Shappee, BJ (February 2021). "High-cadence, early-time observations of core-collapse supernovae from the TESS prime mission". Monthly Notices of the Royal Astronomical Society. 500 (4): 5639–5656. arXiv:2010.06596. doi:10.1093/mnras/staa3675.
4. ^ Jones, DO (2021). "The Young Supernova Experiment: Survey Goals, Overview, and Operations". The Astrophysical Journal. 908 (143): 143. arXiv:2010.09724. Bibcode:2021ApJ...908..143J. doi:10.3847/1538-4357/abd7f5. S2CID 224803297.
5. ^ Ailawadhi, B.; Dastidar, R.; Misra, K.; Roy, R.; Hiramatsu, D.; Howell, D. A.; Brink, T. G.; Zheng, W.; Galbany, L.; Shahbandeh, M.; Arcavi, I.; Ashall, C.; Bostroem, K. A.; Burke, J.; Chapman, T.; Dimple; Filippenko, A. V.; Gangopadhyay, A.; Ghosh, A.; Hoffman, A. M.; Hosseinzadeh, G.; Jennings, C.; Jha, V. K.; Kumar, A.; Karamehmetoglu, E.; McCully, C.; McGinness, E.; Muller-Bravo, T. E.; Murakami, Y. S.; Pandey, S. B.; Pellegrino, C.; Piscarreta, L.; Rho, J.; Stritzinger, M.; Sunseri, J.; Van Dyk, S. D.; Yadav, L. (February 2023). "Photometric and spectroscopic analysis of the Type II SN 2020jfo with a short plateau". Monthly Notices of the Royal Astronomical Society. 519 (1): 248-270. arXiv:2211.02823. doi:10.1093/mnras/stac3234.

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