SN 2023ixf

Source: Wikipedia, the free encyclopedia.
SN 2023ixf
J2000
Distance21 Mly (6.4 Mpc)[2]
HostPinwheel Galaxy (M101)
NGC 5461[3]
ProgenitorSupergiant (M=–4.66)[4]
Peak apparent magnitude10.8 (on 22 May 2023)[5][6]
  Related media on Commons
[edit on Wikidata
]

SN 2023ixf is a type II-L[7][8] (core collapse) supernova located in the Pinwheel Galaxy (M101). It was first observed on 19 May 2023 by Kōichi Itagaki and immediately classified as a type II supernova.[2] Initial magnitude at discovery was 14.9.[2] After discovery, the Zwicky Transient Facility project found a precovery image of the supernova at magnitude 15.87 two days before discovery.[9] The supernova is about 21 million light-years from Earth and is expected to have left behind either a neutron star or black hole, based on current stellar evolution models.

The supernova is located near a prominent

HII region, NGC 5461, in an outer spiral arm of the bright galaxy.[3]

By 22 May 2023 SN 2023ixf had brightened to about magnitude 11.[5][6] It could be seen in telescopes as small as 114 mm (4.5 in)[3] and remained visible with backyard telescopes for several months.[10] The last supernova this close to Earth was SN 2014J in Messier 82, roughly 12 million light-years from Earth. The supernova started to fade on around 10 June 2023.[11]

Recent supernovae as bright as SN 2023ixf
Supernova Galaxy Distance Type Peak
apmag
SN 2023ixf Pinwheel Galaxy (M101) 21 Mly (6.4 Mpc) II 10.8
SN 2014J M82 (Cigar Galaxy) 12 Mly (3.7 Mpc) Ia 10.1[12]
SN 2011fe Pinwheel Galaxy (M101) 21 Mly (6.4 Mpc) Ia 9.9[13]

Before becoming a supernova, the progenitor star is believed to have been a

near-infrared (814nm) of MF814W = –4.66.[4]

References

  1. ^ "Discovery certificate for object 2023ixf". Transient Name Server. Archived from the original on 2023-05-21. Retrieved 2023-05-22.
  2. ^ a b c d e "AstroNote 2023-119". Transient Name Server. Archived from the original on 2023-05-20. Retrieved 2023-05-20.
  3. ^ a b c Bob King (2023-05-22). "Bright Supernova Blazes in M101, the Pinwheel Galaxy". Sky & Telescope. Archived from the original on 2023-05-22. Retrieved 2023-05-23.
  4. ^
    Astronomer's Telegram. 2023-05-23. Archived
    from the original on 2023-05-24. Retrieved 2023-05-24.
  5. ^ a b David Bishop. "2023ixf (ZTF23aaklqou)". Archived from the original on 2023-05-21. Retrieved 2023-05-22.
  6. ^ a b "2023-141: Amateur Follow-up observations in bands V & B". Transient Name Server.
  7. Bibcode:2023TNSAN.213....1B
    .
  8. ^ "VSX : Detail for SN 2023ixf". www.aavso.org. Retrieved 2023-07-31.
  9. ^ "ZTF Pre-Discovery Forced Photometry of SN 2023ixf". Transient Name Server.
  10. ^ Kelly Kizer Whitt (2023-05-20). "New supernova! Closest in a decade". Earthsky. Archived from the original on 2023-05-20. Retrieved 2023-05-21.
  11. ^ "AAVSO Magnitude Plot". AAVSO. Archived from the original on 2023-06-11.
  12. ^ List of supernovae sorted by Magnitude for 2014 Archived 2023-05-30 at the Wayback Machine (David Bishop)
  13. ^ List of supernovae sorted by Magnitude for 2011 Archived 2023-05-30 at the Wayback Machine (David Bishop)

External links


Stub icon

This variable star–related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=SN_2023ixf&oldid=1219631639"