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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]

SN 2020fqv
Supernova SN 2020fqv in the Butterfly Galaxy NGC 4568
Event typeSN IIb
DateMarch 31, 2020
Right ascension12h 36m 33.260s[1]
Declination+11° 13′ 53.87″[1]
EpochJ2000
Galactic coordinatesNGC 4568
Redshift0.007522
[edit on Wikidata]

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.{{cite web}}: CS1 maint: url-status (link)
  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 (stab2887). arXiv:2110.10742. doi:10.1093/mnras/stab2887. ISSN 0035-8711.

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