ZwCl 3179 BCG

ZwCl 3179 BCG
SDSS image of ZwCl 3179 BCG
Observation data (J2000.0 epoch)
ConstellationLeo
Right ascension10h 25m 57.96s[1]
Declination+12° 41′ 08.51″[1]
Redshift0.142000[1]
Heliocentric radial velocity42,571 ± 5 km/s[1]
Distance2,061.0 ± 144.3 Mly (631.90 ± 44.23 Mpc)[1]
Group or clusterZwCl 3179
magnitude (J)13.21[1]
Characteristics
TypeBrClG[1]
Size~663,000 ly (203.2 kpc) (estimated)[1]
Other designations
2MASX J10255796+1241086, 2CXO J102557.9+124109, eRASS1 J102557.9+124108 BCG, HeCS J102557.99+124108.4, LEDA 93940, MJV 00493, NVSS J102557+124107, RX J1025.9+1241:[AEF92], TXS 1023+129[1]

ZwCl 3179 BCG (Short for Zwicky Cluster 3179 Brightest Cluster Galaxy) is a massive elliptical galaxy located in the constellation of Leo. The redshift of the galaxy is (z) 0.142[1] and it is the brightest cluster galaxy of the X-ray galaxy cluster ZwCl 3179.[2]

Description

ZwCl 3179 BCG is classified as a central cluster galaxy (CCG) of ZwCl 3179. The optical spectrum of the BCG displays both blue and red emission lines of nitrogen, sulfur, and oxygen, with the total hydrogen-alpha luminosity 40.92 erg s−1. A spiral galaxy is located in the foreground in the northwest direction from the BCG separated by 110 arcseconds.[3]

The total stellar mass of the BCG is 12.36 ± 0.09 M☉, while the stellar velocity dispersion is 353 ± 14 kilometers per seconds.[4] There is an emission line nebula within the BCG displaying quiescent gas, with the lines displaying a full width at half maximum (FWHM) of 482 ± 82 kilometers per second.[5]

The BCG is a radio galaxy containing a compact radio source based on mJy imaging made with the Very Long Baseline Array (VLBA).[6] The radio core has a total flux density of 24.6 mJy, while the non-core component at 1 GHz frequencies has a flux density of 146.6 ± 38.9 mJy with a flat spectral index of 0.2.[7] The radio emission is also mainly core-dominated, with the total radio flux estimated as 94 mJy at 1.4 GHz.[8]

The BCG is also an X-ray galaxy with a bright X-ray source shown to coincide with its position.[9] The total X-ray luminosity of the source is 3.14 × 1044 erg s−1.[10]

References

  1. 1 2 3 4 5 6 7 8 9 10 "NED Search results for ZwCl 3179 BCG". NASA/IPAC Extragalactic Database. Retrieved 2026-05-31.
  2. ↑ Allen, S. W.; Edge, A. C.; Fabian, A. C.; Bohringer, H.; Crawford, C. S.; Ebeling, H.; Johnstone, R. M.; Naylor, T.; Schwarz, R. A. (1992-11-01). "Optical spectroscopy of the ROSAT X-ray brightest clusters". Monthly Notices of the Royal Astronomical Society. 259 (1): 67–81. doi:10.1093/mnras/259.1.67. ISSN 0035-8711.
  3. ↑ 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.
  4. ↑ Sohn, Jubee; Geller, Margaret J.; Diaferio, Antonaldo; Rines, Kenneth J. (2020-03-10). "Velocity Dispersions of Brightest Cluster Galaxies and Their Host Clusters". The Astrophysical Journal. 891 (2): 129. arXiv:1910.11192. Bibcode:2020ApJ...891..129S. doi:10.3847/1538-4357/ab6e6a. ISSN 0004-637X.
  5. ↑ Hamer, S. L.; Edge, A. C.; Swinbank, A. M.; Wilman, R. J.; Combes, F.; Salomé, P.; Fabian, A. C.; Crawford, C. S.; Russell, H. R.; Hlavacek-Larrondo, J.; McNamara, B. R.; Bremer, M. N. (2016-05-06). "Optical emission line nebulae in galaxy cluster cores 1: the morphological, kinematic and spectral properties of the sample". Monthly Notices of the Royal Astronomical Society. 460 (2): 1758–1789. arXiv:1603.03047. doi:10.1093/mnras/stw1054. ISSN 0035-8711.
  6. ↑ Deller, A. T.; Middelberg, E. (2013-12-06). "mJIVE-20: A SURVEY FOR COMPACT mJy RADIO OBJECTS WITH THE VERY LONG BASELINE ARRAY". The Astronomical Journal. 147 (1): 14. arXiv:1310.8191. doi:10.1088/0004-6256/147/1/14. ISSN 0004-6256.
  7. ↑ 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.
  8. ↑ Dutson, K. L.; White, R. J.; Edge, A. C.; Hinton, J. A.; Hogan, M. T. (2012-12-22). "A stacked analysis of brightest cluster galaxies observed with the Fermi Large Area Telescope". Monthly Notices of the Royal Astronomical Society. 429 (3): 2069–2079. arXiv:1211.6344. doi:10.1093/mnras/sts477. ISSN 1365-2966.
  9. ↑ Yang, Hui; Hare, Jeremy; Kargaltsev, Oleg (2024-08-01). "A Multiwavelength Machine-learning Approach to Classifying X-ray Sources in the Fields of Unidentified 4FGL-DR4 sources". The Astrophysical Journal. 971 (2): 180. arXiv:2403.05068. Bibcode:2024ApJ...971..180Y. doi:10.3847/1538-4357/ad543e. ISSN 0004-637X.
  10. ↑ Quillen, Alice C.; Zufelt, Nicholas; Park, Jaehong; O'Dea, Christopher P.; Baum, Stefi A.; Privon, George; Noel-Storr, Jacob; Edge, Alastair; Russell, Helen; Fabian, Andy; Donahue, Megan; Bregman, Joel N.; McNamara, Brian R.; Sarazin, Craig L. (May 2008). "An Infrared Survey of Brightest Cluster Galaxies. I." The Astrophysical Journal Supplement Series. 176 (1): 39–58. arXiv:0711.1118. Bibcode:2008ApJS..176...39Q. doi:10.1086/525560. ISSN 0067-0049.
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