NGC 2832

NGC 2832
NGC 2832 by Sloan Digital Sky Survey
Observation data (J2000 epoch)
ConstellationLynx
Right ascension09h 19m 46.9s[1]
Declination+33° 44′ 59″[1]
Redshift0.023006 ± 0.000003 [1]
Heliocentric radial velocity6,897 ± 1 km/s[1]
Distance289 ± 107 Mly (88.8 ± 33 Mpc)[1]
Apparent magnitude (V)11.8[2]
Characteristics
TypeE+2:;cD [1]
Apparent size (V)1.71′ × 1.18′[1]
Notable featuresBrightest cluster galaxy
Other designations
UGC 4942, Arp 315, MCG +06-21-015, PGC 26377

NGC 2832 is an elliptical galaxy in the constellation Lynx. The galaxy lies about 290 million light years away from Earth, which means, given its apparent dimensions, that NGC 2832 is approximately 250,000 light years across.[1] It was discovered by William Herschel on December 7, 1785.[3]

NGC 2832 is a type-cD galaxy and is the brightest member of Abell 779 galaxy cluster. NGC 2832 appears to interact tidally with NGC 2831, which lies about 25 arcseconds away and shares the same halo with NGC 2832. The edge-on spiral galaxy NGC 2830 lies 80 arcseconds southwest of NGC 2832. The galaxy has a strong central X-ray emission and diffuse emission around it.[4][5] The galaxy hosts a supermassive black hole whose mass is estimated to be 3.6×109 M☉.[6]

One supernova has been observed in NGC 2832, SN 2014ai, a type Ia supernova which was discovered around maximum, having an apparent magnitude of 18.1.[7]

References

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 2832. Retrieved 2024-03-26.
  2. ^ "Revised NGC Data for NGC 2832". spider.seds.org. Retrieved 30 March 2024.
  3. ^ Seligman, Courtney. "NGC 2832 (= PGC 32434, and with NGC 3395 = Arp 270)". Celestial Atlas. Retrieved 19 November 2018.
  4. ^ Dahlem, Michael; Stuhrmann, Norbert (1 April 1998). "ROSAT HRI observations of six early-type galaxies". Astronomy and Astrophysics. 332: 449–458. Bibcode:1998A&A...332..449D. ISSN 0004-6361.
  5. ^ Sreedhar, Yuvraj Harsha; Odell, Andrew P.; Rakos, Karl D.; Hensler, Gerhard; Zeilinger, Werner W. (1 March 2012). "AGES AND METALLICITIES OF CLUSTER GALAXIES IN A779 USING MODIFIED STRÖMGREN PHOTOMETRY". The Astrophysical Journal. 747 (1): 68. arXiv:1201.2373. Bibcode:2012ApJ...747...68H. doi:10.1088/0004-637X/747/1/68.
  6. ^ Schutz, Katelin; Ma, Chung-Pei (21 June 2016). "Constraints on individual supermassive black hole binaries from pulsar timing array limits on continuous gravitational waves". Monthly Notices of the Royal Astronomical Society. 459 (2): 1737–1744. arXiv:1510.08472. doi:10.1093/mnras/stw768.
  7. ^ Forbes, Duncan; Janz, J.; Norris, M. A.; Penny, S.; Romanowsky, A. J. (1 March 2014). "SN Ia in NGC 2832". The Astronomer's Telegram. 6008: 1. Bibcode:2014ATel.6008....1F.
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