NGC 4293

NGC 4293
NGC 4293
	NGC 4293的不完整照片，由哈勃太空望遠鏡拍攝
觀測資料（J2000 曆元）
星座	後髮座
赤經	12h 21m 12.891s
赤緯	+18° 22′ 56.64″
紅移	0.002977
徑向速度	893
距離	54 Mly（16.5 Mpc）
屬於	室女座星系團
視星等 (V)	10.4
特徵
類型	(R)SB(s)0/a
角直徑 (V)	5.293′ × 1.800′
其他名稱
	2MASX J12211289+1822566, IRAS 12186+1839, LEDA 39907, UGC 7405, UZC J122112.6+182256, Z 99-23, VCC 460.
	參見：星系、星系列表

NGC 4293 是一個位於後發座北部的透鏡狀星系，由英國天文學家威廉·赫歇爾於1787年3月14日發現。他將這個星系形容為「大而長，可分辨，長度為6-7角分」。這個星系位於五諸侯增六的西北偏北方向，是室女座星系團的一員。^[5] 其和室女座星系團與地球的距離可能大致相同，約為5400萬光年。^[4]該星系的尺寸約為5.3×3.1角分。^[5]

該星系的型態類型為(R)SB(s)0/a，類型編號中的SB0/a表明該星系含有可勉強分辨的蜿蜒旋臂且其核球為棒狀。而「(s)」標記則表明這個星系在其核球周圍沒有環狀結構。^[6]^[8] 該星系的恆星形成區域僅限於星系中心附近。^[9]此外，該星系的星盤外側存在擾動，表明其與其他天體發生了引力相互作用^[10]。

該星系屬於一種名為低電離星系核的常見活躍星系，意味著該星系的視覺光譜主要由處於低能電離態的氣體發射線組成。這可能是由於一個位於星系核球的超大質量黑洞正以較低的速率累積物質，該黑洞的質量約為7007590000000000000♠5.9×10⁷ M_⊙。^[11]由於該星系距地球較近，人類探測到了該星係由於熱能活動而產生的無線電波。^[12]

圖集

由哈勃太空望遠鏡拍攝

參考文獻

^ ^1.0 ^1.1 ^1.2 Skrutskie, Michael F.; et al, The Two Micron All Sky Survey (2MASS), The Astronomical Journal, 1 February 2006, 131 (2): 1163–1183, Bibcode:2006AJ....131.1163S, ISSN 0004-6256, S2CID 18913331, doi:10.1086/498708 .
^ Kochanek, C. S.; et al, The K-Band Galaxy Luminosity Function, The Astrophysical Journal, October 2001, 560 (2): 566–579, Bibcode:2001ApJ...560..566K, S2CID 119420446, arXiv:astro-ph/0011456 , doi:10.1086/322488.
^ Crook, Aidan C.; et al, Groups of Galaxies in the Two Micron All Sky Redshift Survey, The Astrophysical Journal, February 2007, 655 (2): 790–813, Bibcode:2007ApJ...655..790C, S2CID 11672751, arXiv:astro-ph/0610732 , doi:10.1086/510201.
^ ^4.0 ^4.1 Cappellari, Michele; et al, The ATLAS^3D project - I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria, Monthly Notices of the Royal Astronomical Society, May 2011, 413 (2): 813–836, Bibcode:2011MNRAS.413..813C, S2CID 15391206, arXiv:1012.1551 , doi:10.1111/j.1365-2966.2010.18174.x .
^ ^5.0 ^5.1 ^5.2 O'Meara, Stephen James, Deep-Sky Companions: The Secret Deep 4, Cambridge University Press: 230–231, 2011, ISBN 978-1-139-50007-4.
^ ^6.0 ^6.1 de Vaucouleurs, G.; et al, Third reference catalogue of bright galaxies, version 9, The Astronomical Journal, 1991, 108: 2128 [2015-11-25], Bibcode:1994AJ....108.2128C, doi:10.1086/117225, （原始內容存檔於2019-08-11）.
^ NGC 4293. SIMBAD. 斯特拉斯堡天文資料中心.
^ Keel, William C., Galaxy Classification, 阿拉巴馬大學, January 2015 [2015-11-25], （原始內容存檔於2006-09-01）.
^ Falcón-Barroso, J.; et al, Galaxy Evolution: Emerging Insights and Future Challenges ASP Conference Series, Jogee, S.; Marinova, I.; Hao, L.; et al (編), Galactic Bulges: the SAURON Perspective 419, Society of the Pacific, 2009: 131, December 2009, Bibcode:2009ASPC..419..131F.
^ Cortés, J. R.; et al, XI IAU Regional Latin American Meeting of Astronomy, Infante, L.; Rubio, M. (編), Stellar and Ionized Gas Kinematics of Peculiar Virgo Cluster Galaxies 26, Revista Mexicana de Astronomía y Astrofísica: 189, June 2006, Bibcode:2006RMxAC..26Q.189C, arXiv:astro-ph/0602627 .
^ Chiaberge, Marco; et al, The Hubble Space Telescope View of LINER Nuclei: Evidence for a Dual Population?, The Astrophysical Journal, June 2005, 625 (2): 716–726, Bibcode:2005ApJ...625..716C, S2CID 6676560, arXiv:astro-ph/0501461 , doi:10.1086/429612.
^ Filho, M. E.; Barthel, P. D.; Ho, L. C., A radio census of nuclear activity in nearby galaxies, Astronomy and Astrophysics, May 2006, 451 (1): 71–83, Bibcode:2006A&A...451...71F, S2CID 16640767, arXiv:astro-ph/0601080 , doi:10.1051/0004-6361:20054510.

外部連結

維基共享資源上的相關多媒體資源：NGC 4293

[ApJ131_1163-1] 1.0 ^1.1 ^1.2 Skrutskie, Michael F.; et al, The Two Micron All Sky Survey (2MASS), The Astronomical Journal, 1 February 2006, 131 (2): 1163–1183, Bibcode:2006AJ....131.1163S, ISSN 0004-6256, S2CID 18913331, doi:10.1086/498708 .

[apj560_2_566-2] Kochanek, C. S.; et al, The K-Band Galaxy Luminosity Function, The Astrophysical Journal, October 2001, 560 (2): 566–579, Bibcode:2001ApJ...560..566K, S2CID 119420446, arXiv:astro-ph/0011456 , doi:10.1086/322488.

[Crook2007-3] Crook, Aidan C.; et al, Groups of Galaxies in the Two Micron All Sky Redshift Survey, The Astrophysical Journal, February 2007, 655 (2): 790–813, Bibcode:2007ApJ...655..790C, S2CID 11672751, arXiv:astro-ph/0610732 , doi:10.1086/510201.

[MNRAS413_2_813-4] 4.0 ^4.1 Cappellari, Michele; et al, The ATLAS^3D project - I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria, Monthly Notices of the Royal Astronomical Society, May 2011, 413 (2): 813–836, Bibcode:2011MNRAS.413..813C, S2CID 15391206, arXiv:1012.1551 , doi:10.1111/j.1365-2966.2010.18174.x .

[omeara2011-5] 5.0 ^5.1 ^5.2 O'Meara, Stephen James, Deep-Sky Companions: The Secret Deep 4, Cambridge University Press: 230–231, 2011, ISBN 978-1-139-50007-4.

[vaucoulerus1991-6] 6.0 ^6.1 de Vaucouleurs, G.; et al, Third reference catalogue of bright galaxies, version 9, The Astronomical Journal, 1991, 108: 2128 [2015-11-25], Bibcode:1994AJ....108.2128C, doi:10.1086/117225, （原始內容存檔於2019-08-11）.

[SIMBAD-7] NGC 4293. SIMBAD. 斯特拉斯堡天文資料中心.

[keel2015-8] Keel, William C., Galaxy Classification, 阿拉巴馬大學, January 2015 [2015-11-25], （原始內容存檔於2006-09-01）.

[pasp2009-9] Falcón-Barroso, J.; et al, Galaxy Evolution: Emerging Insights and Future Challenges ASP Conference Series, Jogee, S.; Marinova, I.; Hao, L.; et al (編), Galactic Bulges: the SAURON Perspective 419, Society of the Pacific, 2009: 131, December 2009, Bibcode:2009ASPC..419..131F.

[rmaa2006-10] Cortés, J. R.; et al, XI IAU Regional Latin American Meeting of Astronomy, Infante, L.; Rubio, M. (編), Stellar and Ionized Gas Kinematics of Peculiar Virgo Cluster Galaxies 26, Revista Mexicana de Astronomía y Astrofísica: 189, June 2006, Bibcode:2006RMxAC..26Q.189C, arXiv:astro-ph/0602627 .

[chiaberge2005-11] Chiaberge, Marco; et al, The Hubble Space Telescope View of LINER Nuclei: Evidence for a Dual Population?, The Astrophysical Journal, June 2005, 625 (2): 716–726, Bibcode:2005ApJ...625..716C, S2CID 6676560, arXiv:astro-ph/0501461 , doi:10.1086/429612.

[aa451_1_71-12] Filho, M. E.; Barthel, P. D.; Ho, L. C., A radio census of nuclear activity in nearby galaxies, Astronomy and Astrophysics, May 2006, 451 (1): 71–83, Bibcode:2006A&A...451...71F, S2CID 16640767, arXiv:astro-ph/0601080 , doi:10.1051/0004-6361:20054510.

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