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Abell 267 BCG

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Abell 267 BCG
SDSS image of Abell 267 BCG
Observation data (J2000.0 epoch)
ConstellationCetus
Right ascension01h 52m 41.98s[1]
Declination+01° 00′ 25.83″[1]
Redshift0.229731[1]
Heliocentric radial velocity68,871 ± 12 km/s[1]
Distance3,315.3 ± 232.1 Mly (1,016.47 ± 71.15 Mpc)
Group or clusterAbell 267
magnitude (J)14.52[1]
magnitude (H)13.60[1]
Characteristics
TypeBrCIG[1]
Size~736,000 ly (225.7 kpc) (estimated)[1]
Other designations
2MASX J01524199+0100257, Abell 0267:[BHB2008] BCG, ASK 034321.0, LEDA 1181685, MaxBCG J028.17484+01.00710 BCG, RX J0152.7+0100:[BEV98] 001, SDSS J015241.95+010025.5[1]

Abell 267 BCG (Short for Abell 267 Brightest Cluster Galaxy) is a massive type-cD galaxy residing as the brightest cluster galaxy in the fossil galaxy cluster, Abell 267.[2][3] The redshift of the galaxy is (z) 0.229[1] and it was first discovered in January 1993 by astronomers.[4]

Description

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Abell 267 BCG is a central dominant galaxy. When observed with the Very Large Array (VLA) at six centimeters, it is found to display no signs of any associated radio emission, making this BCG technically radio-quiet.[4] The total radio power estimated is found to be less than 23.55 W Hz-1.[3] The BCG also displays the absence of emission lines in its own optical spectrum.[5] No radio flux was detected based on optical follow-up studies.[6]

The core of the BCG has a red appearance based on its inner color profile shape. The BCG's projected offset in respect to the X-ray emission peak of the cluster has been estimated as 77.5 kiloparsecs.[7] A study published in 2012, found it belongs to a fossil galaxy cluster and has an R-band magnitude of 15.72. The effective surface brightness of the BCG is estimated to be 19.50 ± 0.12 magnitudes per arcsecond square.[8] The supermassive black hole lying in the center of the BCG is estimated to have a mass of 2.11 × 109 Mʘ.[9] The rotation of the BCG is estimated to be 0.05 ± 0.06 Vmax with a central velocity dispersion of 321 ± 8 kilometers per seconds.[10]

Evidence suggests the BCG has an unresolved radio source based on VLA observations at 1.4 GHz frequencies. with the total radio luminosity calculated as less than 21.3 × 1038 keV s-1 Hz-1.[11][12] The radio core imaged at 10 GHz, is estimated to have an upper limit of less than 0.18 mJy with a flat normalization of 0.29.[13] A study published in 2016, found the BCG has an intermediate stellar population of stars that are mainly aged 4,070 ± 130 and 4,010 ± 200 million years respectively.[14] A total stellar mass of 12.42+0.01-0.02 Mʘ has been calculated for the BCG with a stellar velocity dispersion of 297 ± 16 kilometers per seconds.[15] The total ultraviolet star formation rate is estimated to be 2.86 Mʘ per year.[16]

References

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  1. ^ a b c d e f g h i j "NED Search results for Abell 267 BCG (LEDA 1181685)". NASA/IPAC Extragalactic Database. Retrieved 2026-05-17.
  2. ^ Pratt, G. W.; Pointecouteau, E.; Arnaud, M.; van der Burg, R. F. J. (2016-04-27). "The hot gas content of fossil galaxy clusters". Astronomy and Astrophysics. 590: L1. arXiv:1604.08223v1. Bibcode:2016A&A...590L...1P. doi:10.1051/0004-6361/201628462.
  3. ^ a b 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.
  4. ^ a b Ball, Rayford; Burns, Jack O.; Loken, Chris (January 1993). "The radio properties of cD galaxies in Abell clusters. II - The VLA sample". The Astronomical Journal. 105: 53. Bibcode:1993AJ....105...53B. doi:10.1086/116409. ISSN 0004-6256.
  5. ^ 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.
  6. ^ Crawford, C. S.; Edge, A. C.; Fabian, A. C.; Allen, S. W.; Böhringer, H.; Ebeling, H.; McMahon, R. G.; Voges, W. (May 1995). "Optical spectroscopy of the ROSAT X-ray brightest clusters - II". Monthly Notices of the Royal Astronomical Society. 274 (1): 75–84. doi:10.1093/mnras/274.1.75. ISSN 0035-8711.
  7. ^ Bildfell, C.; Hoekstra, H.; Babul, A.; Mahdavi, A. (2008-10-01). "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.
  8. ^ Méndez-Abreu, J.; Aguerri, J. a. L.; Barrena, R.; Sánchez-Janssen, R.; Boschin, W.; Castro-Rodriguez, N.; Corsini, E. M.; Burgo, C. del; D’Onghia, E.; Girardi, M.; Iglesias-Páramo, J.; Napolitano, N.; Vilchez, J. M.; Zarattini, S. (2012-01-01). "Fossil group origins - II. Unveiling the formation of the brightest group galaxies through their scaling relations" (PDF). Astronomy & Astrophysics. 537: A25. arXiv:1110.0465. Bibcode:2012A&A...537A..25M. doi:10.1051/0004-6361/201117755. ISSN 0004-6361.
  9. ^ Loubser, S I; Babul, A; Hoekstra, H; Bahé, Y M; O’Sullivan, E; Donahue, M (2020-06-12). "Dynamical masses of brightest cluster galaxies I: stellar velocity anisotropy and mass-to-light ratios". Monthly Notices of the Royal Astronomical Society. 496 (2): 1857–1880. doi:10.1093/mnras/staa1682. ISSN 0035-8711.
  10. ^ Loubser, S I; Hoekstra, H; Babul, A; O'Sullivan, E (2018-02-23). "Diversity in the stellar velocity dispersion profiles of a large sample of brightest cluster galaxies z ≤ 0.3". Monthly Notices of the Royal Astronomical Society. 477 (1): 335–358. arXiv:1802.07745. doi:10.1093/mnras/sty498. ISSN 0035-8711.
  11. ^ Hess, Kelley M.; Wilcots, Eric M.; Hartwick, Victoria L. (2012-08-01). "Fresh Activity in Old Systems: Radio AGN in Fossil Groups of Galaxies". The Astronomical Journal. 144 (2): 48. arXiv:1206.2679. Bibcode:2012AJ....144...48H. doi:10.1088/0004-6256/144/2/48. ISSN 0004-6256.
  12. ^ 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. doi:10.1093/mnrasl/sly129. ISSN 1745-3925.
  13. ^ 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.
  14. ^ Loubser, S. I.; Babul, A.; Hoekstra, H.; Mahdavi, A.; Donahue, M.; Bildfell, C.; Voit, G. M. (2015-12-22). "The regulation of star formation in cool-core clusters: imprints on the stellar populations of brightest cluster galaxies". Monthly Notices of the Royal Astronomical Society. 456 (2): 1565–1578. doi:10.1093/mnras/stv2784. ISSN 0035-8711.
  15. ^ Kim, Jae-Woo; Ko, Jongwan; Hwang, Ho Seong; Edge, Alastair C.; Lee, Joon Hyeop; Lee, Jong Chul; Jeong, Hyunjin (2017-02-10). "The Dependence of Cluster Galaxy Properties on the Central Entropy of Their Host Cluster". The Astrophysical Journal. 836 (1): 105. arXiv:1703.02234. Bibcode:2017ApJ...836..105K. doi:10.3847/1538-4357/aa5b8e. ISSN 0004-637X.
  16. ^ 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.
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