NGC 4065 Group

The NGC 4065 Group is a group of galaxies[1][2][3][15] located about 330 Mly (100 Mpc)[1][3] in the constellation Coma Berenices.[10][16] The group's brightest member is NGC 4065[4][15][17][18] and located in the Coma Supercluster.[3][7][15][19][20][21][22][23]

NGC 4065 Group
SDSS image of the NGC 4065 Group. The two subclusters surrounding the galaxy pair NGC 4061 and NGC 4065 (lower right) and NGC 4095 (upper left) can be seen.
Observation data (Epoch J2000)
Constellation(s)Coma Berenices
Right ascension12h 04m 09.5s[1][2]
Declination20° 13′ 18″[1][2]
Brightest memberNGC 4065
Number of galaxies74[3][4][5]
Velocity dispersion416 ± 35 km/s[3][4][5]
Redshift0.023500 (7045 km/s)[1]
Distance
(co-moving)		100 Mpc (326.2 Mly)[1][3]
X-ray luminosity0.05×1042.64 erg/s[4][6]
Other designations
GH 98,[2][3][4][7][8] N79-299a, N79-299b,[1][2][7][8][9] WBL 374,[8][10] ZW 1202.0+2028,[8][9] USGC U451,[4][11][12] NRGb 177,[5][13] RASSCALS NRGb 177[3][4][14]

The group is dominated by mostly elliptical galaxies[10][19] with only 15 to 31 percent of the members being spiral galaxies.[4][15]

X-ray emission

The NGC 4065 Group exhibits bimodal X-ray emission with one peak on the galaxies NGC 4061 and NGC 4065 and the other on NGC 4066.[4]

Structure

The NGC 4065 Group appears to consist of two subgroups known as UZC-CG 156 and UZC-CG 157[3][4] which are indistinguishable by velocity.[3]

However, White et al. suggests that the group contains three subgroups[8] with subgroups A and C[8] being centered on NGC 4065 and NGC 4095 respectively,[10] and subgroup B which consists of the galaxies NGC 4086 and NGC 4090.[8]

At the center of the group lie the elliptical galaxies NGC 4061 and NGC 4065.[4]

Nearby groups

The NGC 4065 Group is located near the Leo Cluster[3][15] and is part of a bridge of galaxies that connects the Leo Cluster to the Coma Cluster.[15][17][24]

See also

References
  1. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2019-02-15.
  2. "NGC 4065 GROUP". sim-id. Retrieved 2019-02-17.
  3. Freeland, E.; Sengupta, C.; Croston, J. H. (2010-12-01). "Quantifying the importance of ram-pressure stripping in a galaxy group at 100 Mpc". Monthly Notices of the Royal Astronomical Society. 409 (4): 1518–1524. arXiv:1007.3286. Bibcode:2010MNRAS.409.1518F. doi:10.1111/j.1365-2966.2010.17379.x. ISSN 0035-8711.
  4. Freeland, E.; Stilp, A.; Wilcots, E. (2009-07-01). "H I Observations of Five Groups of Galaxies". The Astronomical Journal. 138 (1): 295–304. arXiv:0905.3907. Bibcode:2009AJ....138..295F. doi:10.1088/0004-6256/138/1/295. ISSN 0004-6256. S2CID 15714969.
  5. Mahdavi, Andisheh; Geller, Margaret J. (2004-05-01). "A Redshift Survey of Nearby Galaxy Groups: The Shape of the Mass Density Profile". The Astrophysical Journal. 607 (1): 202–219. arXiv:astro-ph/0402161. Bibcode:2004ApJ...607..202M. doi:10.1086/383458. ISSN 0004-637X.
  6. Osmond, John P. F.; Ponman, Trevor J. (June 2004). "The GEMS project: X-ray analysis and statistical properties of the group sample". Monthly Notices of the Royal Astronomical Society. 350 (4): 1511–1535. arXiv:astro-ph/0402439. Bibcode:2004MNRAS.350.1511O. doi:10.1111/j.1365-2966.2004.07742.x. S2CID 18337755.
  7. Burns, Jack O.; Hanisch, Robert J.; White, Richard A.; Nelson, Eric R.; Morrisette, Kim A.; Moody, J. Ward (1987-09-01). "A VLA 20 CM survey of poor groups of galaxies". The Astronomical Journal. 94: 587–617. Bibcode:1987AJ.....94..587B. doi:10.1086/114494. ISSN 0004-6256.
  8. White, Richard A.; Bliton, Mark; Bhavsar, Suketu P.; Bornmann, Patricia; Burns, Jack O.; Ledlow, Michael J.; Loken, Christen (1999-11-01). "A Catalog of Nearby Poor Clusters of Galaxies". The Astronomical Journal. 118 (5): 2014–2037. arXiv:astro-ph/9907283. Bibcode:1999AJ....118.2014W. doi:10.1086/301103. ISSN 0004-6256.
  9. Ledlow, Michael J.; Loken, Chris; Burns, Jack O.; Hill, John M.; White, Richard A. (1996-08-01). "Redshift and Optical Properties for S Statistically Complete Sample of Poor Galaxy Clusters". The Astronomical Journal. 112: 388. arXiv:astro-ph/9607012. Bibcode:1996AJ....112..388L. doi:10.1086/118023. ISSN 0004-6256.
  10. "Webb Deep-Sky Society: Galaxy of the Month for April 2018". www.webbdeepsky.com. Retrieved 2019-02-16.
  11. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2019-02-20.
  12. Ramella, Massimo; Geller, Margaret J.; Pisani, Armando; da Costa, Luiz N. (2002-06-01). "The UZC-SSRS2 Group Catalog". The Astronomical Journal. 123 (6): 2976–2984. arXiv:astro-ph/0202326. Bibcode:2002AJ....123.2976R. doi:10.1086/340357. ISSN 0004-6256.
  13. "ALFALFA: The Arecibo Legacy Fast ALFA Survey The 2010 January Undergraduate Workshop" (PDF). Undergraduate ALFALFA Workshop. 11–13 January 2010.
  14. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2019-02-20.
  15. Gregory, S. A.; Thompson, L. A. (June 1978). "The Coma/A1367 supercluster and its environs". The Astrophysical Journal. 222: 784. Bibcode:1978ApJ...222..784G. doi:10.1086/156198. ISSN 0004-637X.
  16. "NGC 4065 Galaxy Group". www.kopernik.org. Retrieved 2019-02-16.
  17. Venkatesan, T. C. A.; Batuski, David J.; Hanisch, Robert J.; Burns, Jack O. (1994-11-01). "Why do head-tail sources exist in poor clusters of galaxies?". The Astrophysical Journal. 436: 67–78. Bibcode:1994ApJ...436...67V. doi:10.1086/174881. ISSN 0004-637X.
  18. Gottlieb, Steve. "Astronomy-Mall: Adventures In Deep Space NGC objects 4001-4999". Astronomy-Mall. Retrieved 2019-02-02.
  19. Tifft, W. G.; Gregory, S. A. (1979-07-01). "Band theory applied to the Coma/A1367 supercluster". The Astrophysical Journal. 231: 23–27. Bibcode:1979ApJ...231...23T. doi:10.1086/157158. ISSN 0004-637X.
  20. Chincarini, G. L.; Giovanelli, R.; Haynes, M. P. (1983-05-01). "The geometry of two superclusters Coma-A1367 and Perseus-Pisces". Astronomy and Astrophysics. 121: 5–9. Bibcode:1983A&A...121....5C. ISSN 0004-6361.
  21. Jaffe, W.; Gavazzi, G.; Valentijn, E. (1986-02-01). "Radio continuum survey of the Coma/A1367 supercluster. I - 610 MHz observations of CGCG galaxies in four groups". The Astronomical Journal. 91: 199–203. Bibcode:1986AJ.....91..199J. doi:10.1086/114000. ISSN 0004-6256.
  22. Galli, R.; Carrasco, L.; Gavazzi, G. (1999-04-01). "The 3-D structure of the Coma–A 1367 supercluster: Optical spectroscopy of 102 galaxies". Astronomy and Astrophysics Supplement Series. 136 (2): 227–235. Bibcode:1999A&AS..136..227G. doi:10.1051/aas:1999209. ISSN 0365-0138.
  23. Gavazzi, Giuseppe; Fumagalli, Mattia; Cucciati, Olga; Boselli, Alessandro (July 2010). "A snapshot on galaxy evolution occurring in the Great Wall: the role of Nurture at z=0". Astronomy and Astrophysics. 517: A73. arXiv:1003.3795. Bibcode:2010A&A...517A..73G. doi:10.1051/0004-6361/201014153. ISSN 0004-6361.
  24. Doe, Stephen M.; Ledlow, Michael J.; Burns, Jack O.; White, Richard A. (July 1995). "ROSAT Observations of Five Poor Galaxy Clusters with Extended Radio Sources". The Astronomical Journal. 110: 46. Bibcode:1995AJ....110...46D. doi:10.1086/117496.
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