IC 831

IC 831
Sloan Digital Sky Survey of IC 831
Observation data
ConstellationComa Berenices
Right ascension193.18 degrees
Declination26.47 degrees
Redshift0.02129
Heliocentric radial velocity6,406 km/s
Distance300 Mly (92 Mpc)
Apparent magnitude (V)17.93
Characteristics
TypeE
Size60,000 ly
Notable featuresGalaxy host of supernova iPTF14atg
Other designations
PGC 43708, 2MASX J12524408+2628135, MCG+05-30-113, AGC 221803, CAIRNS J125244.02+262813.6, SDSS J125244.06+262813.4, [DFO95] 113, LEDA 43708

IC 831 is a type E-S0[1] elliptical galaxy located 300 million light-years away from the Solar System in the constellation of Coma Berenices.[2][3] It is estimated to be 60,000 light-years in diameter[2] and was first discovered on 25 February 1892 by Rudolf Spitaler, an Austrian astronomer.[4] It is not known whether it has an active galactic nucleus.

Supernova

Type Ia supernova, iPTF14atg was discovered in IC 831 on May 3, 2015, which was similar to SN 2002es that exploded prior to that, in UGC 2708, a lenticular galaxy.[5][6] The progenitor type was a white dwarf, in which when it exploded, some of the shockwaves impacted its companion star.[7] It was discovered by Intermediate Palomar Transient Factory in California.

References

  1. ^ "HyperLeda -object description". atlas.obs-hp.fr. Retrieved 2024-04-22.
  2. ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-22.
  3. ^ Ford, Dominic. "IC831 (Galaxy)". In-The-Sky.org. Retrieved 2024-04-22.
  4. ^ "Index Catalog Objects: IC 800 - 849". cseligman.com. Retrieved 2024-04-22.
  5. ^ "Supernova hits star, results shocking". spacedaily.com. Retrieved 2024-04-22.
  6. ^ Kromer, M.; Fremling, C.; Pakmor, R.; Taubenberger, S.; Amanullah, R.; Cenko, S. B.; Fransson, C.; Goobar, A.; Leloudas, G.; Taddia, F.; Roepke, F. K.; Seitenzahl, I. R.; Sim, S. A.; Sollerman, J. (2016-07-11). "The peculiar Type Ia supernova iPTF14atg: Chandrasekhar-mass explosion or violent merger?". Monthly Notices of the Royal Astronomical Society. 459 (4): 4428–4439. arXiv:1604.05730. doi:10.1093/mnras/stw962. ISSN 0035-8711.
  7. ^ "Supernova collides with its companion star". ScienceDaily. Retrieved 2024-04-22.