NGC 4065星系群
NGC 4065星系群是一個位於后髮座的星系群[1][2][15],距離地球3.3億光年[3][10],最亮的星系是NGC 4065[4][15][16],屬於后髮座超星系團[7][15][17]。星系群內橢圓星系居多[10][17],百分之15到31的星系是螺旋星系[4][15]。
NGC 4065星系群 | |
---|---|
觀測數據(曆元J2000) | |
星座 | 后髮座 |
赤經 | 12h 04m 09.5s[1][2] |
赤緯 | 20° 13′ 18″[1][2] |
最亮的成員 | NGC 4065 |
星系的數量 | 74[3][4][5] |
離散速度 | 416 ± 35 km/s[3][4][5] |
紅移 | 0.023500 (7045 km/s)[1] |
同移距離 | 100 Mpc(326.2 Mly)[1][3] |
X射線光度 | ×1042.64 0.05erg/s[4][6] |
其它名稱 | |
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] | |
參見:星系群、星系團、星系團列表 |
結構
編輯NGC 4065星系群由UZC-CG 156和UZC-CG 157兩個子群組成,它們的速度十分接近,無法區分[3][4]。但是,懷特等人認為星系群由三個子群組成[8][10]。星系群的中央是橢圓星系NGC 4061和NGC 4065[4]。
附近星系群
編輯NGC 4065星系群位於獅子座星系團附近[3][15],一部分位於獅子座星系團和后髮座星系團之間[15][16][18]。
另見
編輯參考
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- ^ 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 .
- ^ 4.00 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.
- ^ 5.0 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 .
- ^ 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.
- ^ 7.0 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.
- ^ 8.0 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 .
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- ^ Your NED Search Results. ned.ipac.caltech.edu. [2019-02-20]. (原始內容存檔於2019-02-20).
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- ^ ALFALFA: The Arecibo Legacy Fast ALFA Survey The 2010 January Undergraduate Workshop (PDF). Undergraduate ALFALFA Workshop. 11–13 January 2010. (原始內容存檔 (PDF)於2010-07-11).
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