IC 1262
| IC 1262 | |
|---|---|
SDSS image of IC 1262. | |
| Observation data (J2000 epoch) | |
| Constellation | Hercules |
| Right ascension | 17h 33m 02.04s[1] |
| Declination | +43° 45′ 34.88″[1] |
| Redshift | 0.032649[1] |
| Heliocentric radial velocity | 9,788 km/s ± 23[1] |
| Distance | 451 Mly (138.33 Mpc)[1] |
| Apparent magnitude (V) | 13.7[2] |
| Characteristics | |
| Type | cD;E[1] |
| Size | ~230,000 ly (70 kpc) (estimated)[1] |
| Other designations | |
| 4C +43.46, 2MASX J17330202+4345345, CGCG 226-025, GIN 639, PGC 60479, UGC 10900[1] | |
IC 1262 is an elliptical galaxy located in the constellation of Hercules. The redshift of the galaxy is (z) 0.032[1] and it was first discovered by the American astronomer, Lewis Swift in June 1890, who described it as a 14th magnitude galaxy.[3] it is the brightest cluster galaxy of a small galaxy group named after it, with at least 31 members and such is classified as a type cD galaxy.[4][5][6]
Description
IC 1262 is categorized as an early-type galaxy.[4][7] When observed it is found to have a presence of an arc-feature located east suggested as a recent galaxy merger, with a high surface brightness and such also classified to be a bright source of radio emission. There is also a region area that is located northwards from the arc-feature which it is further separated into other regions, namely the high and low surface brightness region.[8] The star formation of this galaxy has found to be only around 4.35 x 10-2 Mʘ per year.[9] It is also found offset from its X-ray peak.[10]
The nucleus of the galaxy is active and it has been classified as a radio galaxy with an ultra steep radio spectrum. When observed, it has two extended radio lobes located in both north and south directions, with measured spectral indexes of -2.23 and -19.4. The flux density of the northern lobe at 325 MHz is estimated to be 341.2 ± 0.25 mJy whereas the southern radio lobe at 325 MHz is estimated to be around 855.1 ± 0.25 mJy. There is also presence of radio emission that found extending by more than 200 kiloparsecs over a wide area. Two inner X-ray cavities have been located north and south from the galaxy's center, with further confirmation of a much larger X-ray cavity on the outer side.[9][11]
A filamentary structure has been detected in IC 1262. When observed, the feature is shown to have a sharp and narrow appearance and running from north to south direction. A loop feature is also found north of IC 1262 with a measured length of 20 kiloparsecs.[5] Evidence also found the galaxy is surrounded by a halo of hot gas with a symmetric and smooth appearance.[12]
References
- ^ a b c d e f g h i "NED Search results for IC 1262". NASA/IPAC Extragalactic Database. Retrieved 2026-01-31.
- ^ "Revised IC Data for IC 1262". spider.seds.org. Retrieved 30 March 2024.
- ^ "Index Catalog Objects: IC 1250 - 1299". cseligman.com. Retrieved 2026-01-31.
- ^ a b Trinchieri, G.; Saporiti, C. (2004). "The Turmoil in IC1262". Proceedings of the Riddle of Cooling Flows in Galaxies and Clusters of Galaxies, Held in Charlottesville, VA, May 31 - June 4, 2003: 107. Bibcode:2004rcfg.proc..107T.
- ^ a b Trinchieri, G.; Breitschwerdt, D.; Pietsch, W.; Sulentic, J.; Wolter, A. (2007-02-01). "Evidence of unrelaxed IGM around IC 1262" (PDF). Astronomy & Astrophysics. 463 (1): 153–164. doi:10.1051/0004-6361:20066156. ISSN 0004-6361.
- ^ Hudson, Daniel S.; Henriksen, Mark J.; Colafrancesco, Sergio (February 2003). "A BeppoSAX Observation of the IC 1262 Galaxy Cluster". The Astrophysical Journal. 583 (2): 706–711. arXiv:astro-ph/0212308. Bibcode:2003ApJ...583..706H. doi:10.1086/345492. ISSN 0004-637X.
- ^ Trinchieri, Ginevra (January 2000). "Peculiar X-ray features in bright early-type galaxies". International Astronomical Union Colloquium. 174: 197–201. doi:10.1017/S0252921100054981. ISSN 0252-9211.
- ^ Trinchieri, G.; Pietsch, W. (2000). "Peculiar X-ray features in bright early-type galaxies". Astronomy and Astrophysics. 353: 487–497. arXiv:astro-ph/9911125. Bibcode:2000A&A...353..487T.
- ^ a b Pandge, M. B.; Sonkamble, S. S.; Parekh, Viral; Dabhade, Pratik; Parmar, Avni; Patil, M. K.; Raychaudhury, Somak (2019-01-08). "AGN Feedback in Galaxy Groups: A Detailed Study of X-Ray Features and Diffuse Radio Emission in IC 1262". The Astrophysical Journal. 870 (2): 62. arXiv:1811.05647. Bibcode:2019ApJ...870...62P. doi:10.3847/1538-4357/aaf105. ISSN 0004-637X.
- ^ Hudson, Daniel S.; Henriksen, Mark J. (2003-08-07), "Diffuse Nonthermal X-Ray Emission: Evidence of Cosmic-Ray Acceleration at the Shock Front in IC 1262", The Astrophysical Journal, 595 (1): L1–L4, arXiv:astro-ph/0308109, Bibcode:2003ApJ...595L...1H, doi:10.1086/378844, arXiv:astro-ph/0308109
- ^ Ubertosi, Francesco; Schellenberger, Gerrit; O’Sullivan, Ewan; Vrtilek, Jan; Giacintucci, Simona; David, Laurence P.; Forman, William; Gitti, Myriam; Venturi, Tiziana; Jones, Christine; Brighenti, Fabrizio (2024-01-01). "Jet Reorientation in Central Galaxies of Clusters and Groups: Insights from VLBA and Chandra Data". The Astrophysical Journal. 961 (1): 134. arXiv:2312.02283. Bibcode:2024ApJ...961..134U. doi:10.3847/1538-4357/ad11d8. ISSN 0004-637X.
- ^ Kim, Dong-Woo; Anderson, Craig; Burke, Douglas; D’Abrusco, Raffaele; Fabbiano, Giuseppina; Fruscione, Antonella; Lauer, Jennifer; McCollough, Michael; Morgan, Douglas; Mossman, Amy; O’Sullivan, Ewan; Paggi, Alessandro; Vrtilek, Saeqa; Trinchieri, Ginevra (2019-04-16). "Chandra Early-type Galaxy Atlas". The Astrophysical Journal Supplement Series. 241 (2): 36. arXiv:1812.02718. Bibcode:2019ApJS..241...36K. doi:10.3847/1538-4365/ab0ca4. ISSN 1538-4365.
External links
- IC 1262 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images