维基百科

NGC 4065星系群

NGC 4065星系群是一个位于后发座的星系群[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]。

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

结构

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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 4061和NGC 4065[4]。

附近星系群

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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和后发座星系团之间[15][16][18]。

另见

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参考

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  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 Your NED Search Results. ned.ipac.caltech.edu. [2019-02-15]. （原始内容存档于2019-02-20）. 
  2. ^ 2.0 2.1 2.2 2.3 2.4 NGC 4065 GROUP. sim-id. [2019-02-17]. （原始内容存档于2019-02-20）. 
  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  . doi:10.1111/j.1365-2966.2010.17379.x  . 
  4. ^ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 Freeland, E.; Stilp, A.; Wilcots, E. H I Observations of Five Groups of Galaxies. The Astronomical Journal. 2009-07-01, 138 (1): 295–304. Bibcode:2009AJ....138..295F. ISSN 0004-6256. S2CID 15714969. arXiv:0905.3907  . doi:10.1088/0004-6256/138/1/295. 
  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  . doi:10.1086/383458  . 
  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  . 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  . doi:10.1086/301103  . 
  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  . doi:10.1086/118023. 
  10. ^ 10.0 10.1 10.2 10.3 Webb Deep-Sky Society: Galaxy of the Month for April 2018. www.webbdeepsky.com. [2019-02-16]. （原始内容存档于2019-02-20）. 
  11. ^ Your NED Search Results. ned.ipac.caltech.edu. [2019-02-20]. （原始内容存档于2019-02-20）. 
  12. ^ Ramella, Massimo; Geller, Margaret J.; Pisani, Armando; da Costa, Luiz N. The UZC-SSRS2 Group Catalog. The Astronomical Journal. 2002-06-01, 123 (6): 2976–2984. Bibcode:2002AJ....123.2976R. ISSN 0004-6256. arXiv:astro-ph/0202326  . doi:10.1086/340357  . 
  13. ^ ALFALFA: The Arecibo Legacy Fast ALFA Survey The 2010 January Undergraduate Workshop (PDF). Undergraduate ALFALFA Workshop. 11–13 January 2010. （原始内容存档 (PDF)于2010-07-11）. 
  14. ^ Your NED Search Results. ned.ipac.caltech.edu. [2019-02-20]. （原始内容存档于2019-02-20）. 
  15. ^ 15.0 15.1 15.2 15.3 15.4 15.5 Gregory, S. A.; Thompson, L. A. The Coma/A1367 supercluster and its environs. The Astrophysical Journal. June 1978, 222: 784 [2022-06-29]. Bibcode:1978ApJ...222..784G. ISSN 0004-637X. doi:10.1086/156198. （原始内容存档于2017-09-23） （英语）. 
  16. ^ 16.0 16.1 Venkatesan, T. C. A.; Batuski, David J.; Hanisch, Robert J.; Burns, Jack O. Why do head-tail sources exist in poor clusters of galaxies?. The Astrophysical Journal. 1994-11-01, 436: 67–78. Bibcode:1994ApJ...436...67V. ISSN 0004-637X. doi:10.1086/174881. 
  17. ^ 17.0 17.1 Tifft, W. G.; Gregory, S. A. Band theory applied to the Coma/A1367 supercluster. The Astrophysical Journal. 1979-07-01, 231: 23–27. Bibcode:1979ApJ...231...23T. ISSN 0004-637X. doi:10.1086/157158. 
  18. ^ Doe, Stephen M.; Ledlow, Michael J.; Burns, Jack O.; White, Richard A. ROSAT Observations of Five Poor Galaxy Clusters with Extended Radio Sources. The Astronomical Journal. July 1995, 110: 46. Bibcode:1995AJ....110...46D. doi:10.1086/117496. 

外部链接

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检索自“https://zh.wikipedia.org/w/index.php?title=NGC_4065星系群&oldid=79406460”