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NGC 4065星系群

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NGC 4065星系群
SDSS拍摄的NGC 4065星系群
观测数据(历元J2000
星座后发座
赤经12h 04m 09.5s[1][2]
赤纬20° 13′ 18″[1][2]
最亮的成员NGC 4065
星系的数量74[3][4][5]
离散速度416 ± 35 km/s[3][4][5]
红移0.023500 (7045 km/s)[1]
同移距离100 Mpc(326.2 Mly[1][3]
X射线光度0.05×1042.64 erg/s[4][6]
其它名称
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]
参见:星系群星系团星系团列表

NGC 4065星系群是一个位于后发座星系群[1][2][15],距离地球3.3亿光年[3][10],最亮的星系是NGC 4065[4][15][16],属于后发座超星系团[7][15][17]。星系群内椭圆星系居多[10][17],百分之15到31的星系是螺旋星系[4][15]

结构

NGC 4065星系群由UZC-CG 156和UZC-CG 157两个子群组成,它们的速度十分接近,无法区分[3][4]。但是,怀特等人认为星系群由三个子群组成[8][10]。星系群的中央是椭圆星系NGC 4061NGC 4065[4]

附近星系群

NGC 4065星系群位于狮子座星系团附近[3][15],一部分位于狮子座星系团后发座星系团之间[15][16][18]

另见

参考

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  3. ^ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Freeland, E.; Sengupta, C.; Croston, J. H. Quantifying the importance of ram-pressure stripping in a galaxy group at 100 Mpc. Monthly Notices of the Royal Astronomical Society. 2010-12-01, 409 (4): 1518–1524. Bibcode:2010MNRAS.409.1518F. ISSN 0035-8711. arXiv:1007.3286可免费查阅. doi:10.1111/j.1365-2966.2010.17379.x可免费查阅. 
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  5. ^ 5.0 5.1 5.2 Mahdavi, Andisheh; Geller, Margaret J. A Redshift Survey of Nearby Galaxy Groups: The Shape of the Mass Density Profile. The Astrophysical Journal. 2004-05-01, 607 (1): 202–219. Bibcode:2004ApJ...607..202M. ISSN 0004-637X. arXiv:astro-ph/0402161可免费查阅. doi:10.1086/383458可免费查阅. 
  6. ^ Osmond, John P. F.; Ponman, Trevor J. The GEMS project: X-ray analysis and statistical properties of the group sample. Monthly Notices of the Royal Astronomical Society. June 2004, 350 (4): 1511–1535. Bibcode:2004MNRAS.350.1511O. S2CID 18337755. arXiv:astro-ph/0402439可免费查阅. doi:10.1111/j.1365-2966.2004.07742.x. 
  7. ^ 7.0 7.1 7.2 Burns, Jack O.; Hanisch, Robert J.; White, Richard A.; Nelson, Eric R.; Morrisette, Kim A.; Moody, J. Ward. A VLA 20 CM survey of poor groups of galaxies. The Astronomical Journal. 1987-09-01, 94: 587–617. Bibcode:1987AJ.....94..587B. ISSN 0004-6256. doi:10.1086/114494. 
  8. ^ 8.0 8.1 8.2 8.3 8.4 White, Richard A.; Bliton, Mark; Bhavsar, Suketu P.; Bornmann, Patricia; Burns, Jack O.; Ledlow, Michael J.; Loken, Christen. A Catalog of Nearby Poor Clusters of Galaxies. The Astronomical Journal. 1999-11-01, 118 (5): 2014–2037. Bibcode:1999AJ....118.2014W. ISSN 0004-6256. arXiv:astro-ph/9907283可免费查阅. doi:10.1086/301103可免费查阅. 
  9. ^ 9.0 9.1 Ledlow, Michael J.; Loken, Chris; Burns, Jack O.; Hill, John M.; White, Richard A. Redshift and Optical Properties for S Statistically Complete Sample of Poor Galaxy Clusters. The Astronomical Journal. 1996-08-01, 112: 388. Bibcode:1996AJ....112..388L. ISSN 0004-6256. arXiv:astro-ph/9607012可免费查阅. doi:10.1086/118023. 
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