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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.
| IC 831 | |
|---|---|
 Sloan Digital Sky Survey of IC 831 | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12h 52m 44.10s[1] |
| Declination | +26° 28′ 13.8″[1] |
| Redshift | 0.02129 |
| Heliocentric radial velocity | 6,406 km/s |
| Distance | 300 Mly (92 Mpc) |
| Apparent magnitude (V) | 17.93 |
| Characteristics | |
| Type | E |
| Size | 60,000 ly |
| Notable features | Galaxy 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 | |
Supernova
editType 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
edit- ^ a b c "HyperLeda -object description". atlas.obs-hp.fr. Retrieved 2024-04-22.
- ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-22.
- ^ Ford, Dominic. "IC831 (Galaxy)". In-The-Sky.org. Retrieved 2024-04-22.
- ^ "Index Catalog Objects: IC 800 - 849". cseligman.com. Retrieved 2024-04-22.
- ^ "Supernova hits star, results shocking". spacedaily.com. Retrieved 2024-04-22.
- ^ 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.
- ^ "Supernova collides with its companion star". ScienceDaily. Retrieved 2024-04-22.