跳转到内容

NGC 6051

天球赤道座标星图 16h 04m 56.6s, +23° 55′ 57.7″
维基百科,自由的百科全书
NGC 6051
SDSS的NGC 6051影像
观测资料(J2000 历元
星座巨蛇座
赤经16h 04m 56.6s
赤纬+23° 55′ 57.7″
红移0.031404
径向速度9,415 Km/s
距离453 Mly (138.8 Mpc)
属于AWM 4
视星等 (V)0.19
视星等 (B)0.26
特征
类型cD; E
大小250,000 ly (大约76.65 kpc)
角直径 (V)1.3' x 0.9'
其他名称
PGC 57006、UGC 10178、4C +24.36、MCG +04-38-021, GIN 487
参见:星系星系列表

NGC 6051是位于巨蛇座的一个巨大椭圆星系,距离地球4.53亿光年,这意味着,考虑到其表观尺寸,该星系的直径约为250,000光年[1]。它是名为AWM 4的化石系统中一个松弛的贫穷星系团内最亮的团星系[2]。这个星系团由至少30个星系成员组成[3]

观测的历史

[编辑]

NGC 6051是让·玛里·爱德华·史提芬在1881年6月20日发现的。根据约翰·路易·埃米尔·德雷耳的说法,他将其描述为一个微弱的小圆形物体,中间有一个明亮的核,东南方有一颗10等的恒星[4]SIMBAD里昂-默登外星系数据库英语Lyon-Meudon Extragalactic Database(英语:Lyon-Meudon Extragalactic Database,HyperLEDA]]将NGC 6051登录为IC 4588[5][6],但根据哈罗德·科温的说法,这是两个独立的星系[7]。奥沙利文及其同事(2011)将它们视为独立的实体,NGC 6051是星系团中心的主导星系[8]

特征

[编辑]

NGC 6051是一个cD型星系[9]。与AWM 4中的其它星系相比,它的亮度要高得多[10],具有低面亮度轮廓[3],但没有恒星包层[11]

NGC 6051中的核心被认为是活跃星系,它是一个电波星系[12]。它被归类为法纳罗夫-莱利分类英语Fanaroff-Riley I型和II型混合的过渡型。聚集著广角尾的强力电波源[13][14],NGC 6051包含两个反射对称的摆动电波喷流和从其电波核心出现约80Kpc的巨大电波瓣[15]。对于这种活动星系核(AGN)活动,最被接受的理论是存在一个超大质量黑洞。基于MBH-MK相关性。NGC 6051中心黑洞的质量估计为9.57 ± 0.02 M[16]

根据射流与反射流的亮度比率,NGC 6051的中心约10kpc喷流区域可能更靠近天空平面。根据对逐渐变陡的光谱指数的分析,喷流和波瓣的寿命估计为1.6亿年,这表明NGC 6051的来源很古老[15][13]

一项研究在NGC 6051中心区域产生的夹带气体中发现了的痕迹,其质量约为1.4 x 106 M。当能量量为〜4.5 x 1057 erg时,气体可能被星系的喷流从星系中输送出来,在一定程度上丰富了星系团内介质[14]

相关条目

[编辑]

外部链接

[编辑]

参考文献

[编辑]
  1. ^ NED Search Results for NGC 6051. ned.ipac.caltech.edu. [2024-09-07]. (原始内容存档于2024-12-02). 
  2. ^ Zibetti, Stefano; Pierini, Daniele; Pratt, Gabriel W. Are fossil groups a challenge of the cold dark matter paradigm?. Monthly Notices of the Royal Astronomical Society. 2009-01-11, 392 (2): 525–536. Bibcode:2009MNRAS.392..525Z. ISSN 0035-8711. arXiv:0809.2036可免费查阅. doi:10.1111/j.1365-2966.2008.14098.x可免费查阅. 
  3. ^ 3.0 3.1 O'Sullivan, E.; Vrtilek, J. M.; Kempner, J. C.; David, L. P.; Houck, J. C. AWM 4 - an isothermal cluster observed with XMM-Newton. Monthly Notices of the Royal Astronomical Society. 2005-03-11, 357 (4): 1134–1150. Bibcode:2005MNRAS.357.1134O. ISSN 0035-8711. arXiv:astro-ph/0412430可免费查阅. doi:10.1111/j.1365-2966.2005.08749.x可免费查阅. 
  4. ^ New General Catalog Objects: NGC 6050 - 6099. cseligman.com. [2024-09-07]. (原始内容存档于2022-09-20). 
  5. ^ NGC 6051. simbad.u-strasbg.fr. [2024-09-07]. (原始内容存档于2025-02-24). 
  6. ^ Hyperleda results for NGC 6051. archive.wikiwix.com. [2024-09-07]. (原始内容存档于2025-02-24). 
  7. ^ Corwin's description on IC 4588. www.darkerview.com. [2024-09-07]. (原始内容存档于2025-02-24). 
  8. ^ O'Sullivan, Ewan; et al. A deep Chandra observation of the poor cluster AWM 4 - II. The role of the radio jets in enriching the intracluster medium. Monthly Notices of the Royal Astronomical Society. March 2011, 411 (3): 1833–1842. Bibcode:2011MNRAS.411.1833O. arXiv:1010.0610可免费查阅. doi:10.1111/j.1365-2966.2010.17812.x可免费查阅. 
  9. ^ Rebusco, P.; Churazov, E.; Bohringer, H.; Forman, W. Effect of turbulent diffusion on iron abundance profiles. Monthly Notices of the Royal Astronomical Society. 2006-11-11, 372 (4): 1840–1850. Bibcode:2006MNRAS.372.1840R. ISSN 0035-8711. arXiv:astro-ph/0608491可免费查阅. doi:10.1111/j.1365-2966.2006.10977.x可免费查阅. 
  10. ^ Gastaldello, Fabio; Buote, David A.; Brighenti, Fabrizio; Mathews, William G.; Temi, Pasquale; Ettori, Stefano; Heinz, Sebastian; Wilcots, Eric. AGN Feedback in Galaxy Groups: The Two Interesting Cases of AWM 4 and NGC 5044. AIP Conference Proceedings (AIP). 2009, 1201: 237–240. Bibcode:2009AIPC.1201..237G. arXiv:0909.0600可免费查阅. doi:10.1063/1.3293045. 
  11. ^ Schombert, James M. The structure of brightest cluster members. II - Mergers. The Astrophysical Journal Supplement Series. August 1987, 64: 643. Bibcode:1987ApJS...64..643S. ISSN 0067-0049. doi:10.1086/191212. 
  12. ^ Velzen, Sjoert van; Falcke, Heino; Schellart, Pim; Nierstenhöfer, Nils; Kampert, Karl-Heinz. Radio galaxies of the local universe - All-sky catalog, luminosity functions, and clustering. Astronomy & Astrophysics. 2012-08-01, 544: A18. Bibcode:2012A&A...544A..18V. ISSN 0004-6361. arXiv:1206.0031可免费查阅. doi:10.1051/0004-6361/201219389. 
  13. ^ 13.0 13.1 Giacintucci, Simona; Vrtilek, Jan M.; Murgia, Matteo; Raychaudhury, Somak; O'Sullivan, Ewan J.; Venturi, Tiziana; David, Laurence P.; Mazzotta, Pasquale; Clarke, Tracy E.; Athreya, Ramana M. A Giant Metrewave Radio Telescope Multifrequency Radio Study of the Isothermal Core of the Poor Galaxy Cluster AWM 4. The Astrophysical Journal. 2008-07-01, 682 (1): 186–198. Bibcode:2008ApJ...682..186G. ISSN 0004-637X. arXiv:0804.1906可免费查阅. doi:10.1086/589280. 
  14. ^ 14.0 14.1 O’Sullivan, Ewan; Giacintucci, Simona; David, Laurence P.; Vrtilek, Jan M.; Raychaudhury, Somak. A deep Chandra observation of the poor cluster AWM 4 - II. The role of the radio jets in enriching the intracluster medium. Monthly Notices of the Royal Astronomical Society. 2010-11-17, 411 (3): 1833–1842. Bibcode:2011MNRAS.411.1833O. ISSN 0035-8711. arXiv:1010.0610可免费查阅. doi:10.1111/j.1365-2966.2010.17812.x可免费查阅. 
  15. ^ 15.0 15.1 Giacintucci, Simona; O’Sullivan, Ewan; Vrtilek, Jan; David, Laurence P.; Raychaudhury, Somak; Venturi, Tiziana; Athreya, Ramana M.; Clarke, Tracy E.; Murgia, Matteo; Mazzotta, Pasquale; Gitti, Myriam; Ponman, Trevor; Ishwara-Chandra, C. H.; Jones, Christine; Forman, William R. A COMBINED LOW-RADIO FREQUENCY/X-RAY STUDY OF GALAXY GROUPS. I. GIANT METREWAVE RADIO TELESCOPE OBSERVATIONS AT 235 MHz AND 610 MHz. The Astrophysical Journal. 2011-04-21, 732 (2): 95. Bibcode:2011ApJ...732...95G. ISSN 0004-637X. arXiv:1103.1364可免费查阅. doi:10.1088/0004-637x/732/2/95. 
  16. ^ Mezcua, M.; Hlavacek-Larrondo, J.; Lucey, J. R.; Hogan, M. T.; Edge, A. C.; McNamara, B. R. The most massive black holes on the Fundamental Plane of black hole accretion. Monthly Notices of the Royal Astronomical Society. 2017-10-30, 474 (1): 1342–1360. ISSN 0035-8711. arXiv:1710.10268可免费查阅. doi:10.1093/mnras/stx2812可免费查阅.