Abell 2111 BCG

Abell 2111 BCG
SDSS image of Abell 2111 BCG
Observation data (J2000.0 epoch)
ConstellationCorona Borealis
Right ascension15h 39m 40.51s[1]
Declination+34° 25′ 26.89″[1]
Redshift0.228001[1]
Heliocentric radial velocity68,353 ± 18 km/s[1]
Distance3,306.1 ± 231.4 Mly (1,013.67 ± 70.96 Mpc)[1]
Group or clusterAbell 2111
magnitude (J)14.96[1]
Characteristics
TypeE;BrClG[1]
Size~494,000 ly (151.6 kpc) (estimated)[1]
Other designations
2MASX J15394049+3425276, Abell 2111:[BHB2008] BCG, GMBCG J234.91873+34.42424 BCG, PKB2009] 03, LEDA 2048987, SDSS 153940.49+342527.2, WHL J153940.5+342527 BCG[1]

Abell 2111 BCG (Short for Abell 2111 Brightest Cluster Galaxy) is a massive elliptical galaxy residing as the brightest cluster galaxy of Abell 2111, a rich Butcher-Oemler galaxy cluster,[2] located in the constellation of Corona Borealis. The redshift of the galaxy is estimated to be (z) 0.228.[1]

Description

Abell 2111 BCG is an elliptical galaxy. The Gunn-r absolute magnitude for this galaxy is estimated to be -22.67 and the effective surface brightness of its bulge is 22.02 magnitude per square arcsecond, with the effective radius of the bulge being 0.992 arcseconds. The position angles of both the bulge and disk are 174.27° and 41.05° respectively.[3]

The total ultraviolet star formation for the BCG is estimated to be 2.17 M☉ per year, while the total stellar mass is 0.39 × 1012 M☉.[4][5] The core of the BCG has a red color appearance based on its inner color profile shape, with the BCG itself having a best fit surface brightness profile parameter profile of 26.42+0.56−0.31 kiloparsecs.[6] The stellar population is made up of intermediate aged stars greater than one billion years.[7]

A study published in 2015 found the BCG is a weak radio source, with its radio core displaying a flux density of less than 0.21 mJy in total and less than 0.18 mJy when observed at 10 GHz frequencies.[8] In addition, its optical spectrum also lacks any emission lines.[8][9] The total radio power is less than 23.55 W Hz−1 at 1.4 GHz, while the radio luminosity is less than 21.1 × 1038 keV s−1 Hz−1.[10][11]

References

  1. 1 2 3 4 5 6 7 8 9 10 "NED Search results for Abell 2111 BCG". NASA/IPAC Extragalactic Database. Retrieved 2026-05-31.
  2. ↑ Miller, Neal A.; Oegerle, William R.; Hill, John M. (May 2006). "Abell 2111: An Optical and Radio Study of the Richest Butcher-Oemler Cluster". The Astronomical Journal. 131 (5): 2426–2441. arXiv:astro-ph/0602080. Bibcode:2006AJ....131.2426M. doi:10.1086/503254. ISSN 0004-6256.
  3. ↑ Ascaso, B.; Aguerri, J. a. L.; Moles, M.; Sánchez-Janssen, R.; Bettoni, D. (2009-07-02). "The bright galaxy population of five medium redshift clusters". Astronomy & Astrophysics. 506 (3): 1071–1082. arXiv:0907.0479v1. doi:10.1051/0004-6361/200811601.
  4. ↑ Hoffer, Aaron S.; Donahue, Megan; Hicks, Amalia; Barthelemy, R. S. (2012-03-01). "Infrared and Ultraviolet Star Formation in Brightest Cluster Galaxies in the Accept Sample". The Astrophysical Journal Supplement Series. 199 (1): 23. arXiv:1201.3373. Bibcode:2012ApJS..199...23H. doi:10.1088/0067-0049/199/1/23. ISSN 0067-0049.
  5. ↑ Lidman, C.; Suherli, J.; Muzzin, A.; Wilson, G.; Demarco, R.; Brough, S.; Rettura, A.; Cox, J.; DeGroot, A.; Yee, H. K. C.; Gilbank, D.; Hoekstra, H.; Balogh, M.; Ellingson, E.; Hicks, A. (2012-11-01). "Evidence for significant growth in the stellar mass of brightest cluster galaxies over the past 10 billion years". Monthly Notices of the Royal Astronomical Society. 427 (1): 550–568. arXiv:1208.5143. Bibcode:2012MNRAS.427..550L. doi:10.1111/j.1365-2966.2012.21984.x. ISSN 0035-8711.
  6. ↑ Bildfell, Chris; Hoekstra, Henk; Babul, Arif; Mahdavi, Andisheh (2008-08-26). "Resurrecting the red from the dead: optical properties of BCGs in X-ray luminous clusters". Monthly Notices of the Royal Astronomical Society. 389 (4): 1637–1654. arXiv:0802.2712. Bibcode:2008MNRAS.389.1637B. doi:10.1111/j.1365-2966.2008.13699.x. ISSN 0035-8711.
  7. ↑ Pipino, A.; Kaviraj, S.; Bildfell, C.; Babul, A.; Hoekstra, H.; Silk, J. (2009-05-01). "Evidence for recent star formation in BCGs: a correspondence between blue cores and UV excess". Monthly Notices of the Royal Astronomical Society. 395 (1): 462–471. arXiv:0807.2760. Bibcode:2009MNRAS.395..462P. doi:10.1111/j.1365-2966.2009.14534.x. ISSN 0035-8711.
  8. 1 2 Hogan, M. T.; Edge, A. C.; Hlavacek-Larrondo, J.; Grainge, K. J. B.; Hamer, S. L.; Mahony, E. K.; Russell, H. R.; Fabian, A. C.; McNamara, B. R.; Wilman, R. J. (2015-10-21). "A Comprehensive Study of the Radio Properties of Brightest Cluster Galaxies". Monthly Notices of the Royal Astronomical Society. 453 (2): 1201–1222. arXiv:1507.03019. doi:10.1093/mnras/stv1517. ISSN 0035-8711.
  9. ↑ Crawford, C. S.; Allen, S. W.; Ebeling, H.; Edge, A. C.; Fabian, A. C. (1999-07-11). "The ROSAT Brightest Cluster Sample -- III. Optical spectra of the central cluster galaxies". Monthly Notices of the Royal Astronomical Society. 306 (4): 857–896. arXiv:astro-ph/9903057. Bibcode:1999MNRAS.306..857C. doi:10.1046/j.1365-8711.1999.02583.x. ISSN 0035-8711.
  10. ↑ Kale, Ruta; Venturi, Tiziana; Cassano, Rossella; Giacintucci, Simona; Bardelli, sandro; Dallacasa, Daniele; Zucca, Elena (September 2015). "Brightest Cluster Galaxies in the Extended GMRT radio halo cluster sample. Radio properties and cluster dynamics". Astronomy & Astrophysics. 581: A23. arXiv:1506.05612. Bibcode:2015A&A...581A..23K. doi:10.1051/0004-6361/201526341. ISSN 0004-6361.
  11. ↑ Iqbal, Asif; Kale, Ruta; Nath, Biman B; Majumdar, Subhabrata (2018-07-11). "Correlations of the feedback energy and BCG radio luminosity in galaxy clusters". Monthly Notices of the Royal Astronomical Society: Letters. 480 (1): L68–L73. arXiv:1802.00454. doi:10.1093/mnrasl/sly129. ISSN 1745-3925.
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