SN 2020fqv

SN 2020fqv

Supernova SN 2020fqv in the Butterfly Galaxy NGC 4568
Event type	SN IIb
Date	March 31, 2020
Right ascension	12h 36m 33.260s [1]
Declination	+11° 13′ 53.87″ [1]
Epoch	J2000
Galactic coordinates	NGC 4568
Redshift	0.007522
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SN 2020fqv was a type II supernova which occurred in March 2020 in the spiral galaxy NGC 4568, approximately 60 million light years from Earth. The explosion was detected by both the Zwicky Transient Facility and the Transiting Exoplanet Survey Satellite. Observations were obtained by the Hubble Space Telescope both years before and just 26 hours after it exploded, as well as many other instruments, providing the first holistic view of such an event. ^{[2] [3] [4] [5] [6]}

Light curves for SN 2020fqv in four photometric bands, adapted from Tinyanont et al. (2021)

The progenitor star is modelled to be a red supergiant with a radius of 800±100 R_☉ and a mass of 15±3  M_☉, fairly typical of type II supernova progenitors. ^[6]

References

1. "SN 2020fqv". Transient Name Server. IAU supernova working group. Retrieved 2022-02-28.
2. "The last days of a massive star before it went supernova". SYFY Official Site. 2021-10-28. Retrieved 2021-11-01.
3. Gough, Evan (2021-10-29). "Quick Action Let Hubble Watch the Earliest Stages of an Unfolding Supernova Detonation". Universe Today. Retrieved 2021-11-01.
4. "Astronomers Observe 'Rosetta Stone of Supernovae' | Sci-News.com". Breaking Science News | Sci-News.com. 2021-11-25. Retrieved 2021-10-30.
5. Howell, Elizabeth (2021-10-25). "Hubble telescope spots doomed star that is the 'Rosetta stone' of supernovas". Space.com. Retrieved 2021-10-30.
6. Tinyanont, Samaporn; Ridden-Harper, R; Foley, R J; Morozova, V; Kilpatrick, C D; Dimitriadis, G; DeMarchi, L; Gagliano, A; Jacobson-Galán, W V; Messick, A; Pierel, J D R (2021-10-26). "Progenitor and close-in Circumstellar Medium of Type II Supernova 2020fqv from high-cadence photometry and ultra-rapid UV spectroscopy". Monthly Notices of the Royal Astronomical Society. 512 (stab2887): 2777–2797. arXiv: 2110.10742 . doi: 10.1093/mnras/stab2887 . ISSN   0035-8711.