跳转到内容

VFTS 243

维基百科,自由的百科全书
VFTS 243

哈伯太空望遠鏡拍攝的VFTS 243的彩色照。
觀測資料
曆元 J2000.0 (ICRS)
星座 劍魚座
星官
赤經 05h 38m 08.407s[1]
赤緯 -69° 09′ 18.98″[1]
視星等(V) 15.26[2]
特性
演化阶段主序星 + 黑洞
光谱分类O7V(n)((f))[3]
变星类型變星[4]
天体测定
自行 (μ) 赤经:+1.722 mas/yr
赤纬:+0.603 mas/yr
视差 (π)−0.0468 ± 0.0244[1] mas
距离approx. −70,000 ly
(approx. −20,000 pc)
軌道[4]
繞行週期 (P)10.4031日
偏心率 (e)0.017
倾斜角 (i)≥ 40°
半振幅 (K1)
(primary)
81.4 km/s
詳細資料 [4]
恆星
質量25 M
半徑10.3 R
表面重力 (log g)3.7
亮度158,000 L
溫度36,000 K
自轉速度 (v sin i)181 km/s
年齡7.4 Myr
黑洞
質量10.1 M
其他命名
2MASS J05380840-6909190[5]
參考資料庫
SIMBAD资料
藝術家對VFTS 243的印象[6]

VFTS 2432MASS J05380840-6909190)是圍繞恆星質量黑洞運行的O7V型主序星恆星[7]。黑洞的質量大約是太陽的9倍,藍色恆星的質量是太陽的25倍,使恆星體積比黑洞大20萬倍。VFTS 243位於距離地球約16萬光年的大麥哲倫星雲內的蜘蛛星雲(NGC 2070)[8][5]。該聯星的軌道週期為10.4天[4]

參考資料

[编辑]
  1. ^ 1.0 1.1 1.2 Vallenari, A.; et al. Gaia Data Release 3. Summary of the content and survey properties. Astronomy & Astrophysics. 2022. arXiv:2208.00211可免费查阅. doi:10.1051/0004-6361/202243940可免费查阅.  已忽略未知参数|collaboration= (帮助) Gaia DR3 record for this source at VizieR.
  2. ^ Evans, C. J.; Taylor, W. D.; Hénault-Brunet, V.; Sana, H.; De Koter, A.; et al. The VLT-FLAMES Tarantula Survey. I. Introduction and observational overview. Astronomy & Astrophysics. June 2011, 530: A108. Bibcode:2011A&A...530A.108E. S2CID 54501763. arXiv:1103.5386可免费查阅. doi:10.1051/0004-6361/201116782. 
  3. ^ Walborn, N. R.; Sana, H.; Simón-Díaz, S.; Maíz Apellániz, J.; Taylor, W. D.; Evans, C. J.; Markova, N.; Lennon, D. J.; De Koter, A. The VLT-FLAMES Tarantula Survey. XIV. The O-type stellar content of 30 Doradus. Astronomy and Astrophysics. 2014, 564: A40. Bibcode:2014A&A...564A..40W. S2CID 119302111. arXiv:1402.6969可免费查阅. doi:10.1051/0004-6361/201323082. 
  4. ^ 4.0 4.1 4.2 4.3 Shenar, Tomer; Sana, Hugues; Mahy, Laurent; El-Badry, Kareem; Marchant, Pablo; Langer, Norbert; Hawcroft, Calum; Fabry, Matthias; Sen, Koushik; Almeida, Leonardo A.; Abdul-Masih, Michael; Bodensteiner, Julia; Crowther, Paul A.; Gieles, Mark; Gromadzki, Mariusz. An X-ray-quiet black hole born with a negligible kick in a massive binary within the Large Magellanic Cloud. Nature Astronomy. 2022-07-18, 6 (9): 1085–1092. Bibcode:2022NatAs...6.1085S. ISSN 2397-3366. S2CID 250626810. arXiv:2207.07675可免费查阅. doi:10.1038/s41550-022-01730-y (英语). 
  5. ^ 5.0 5.1 VFTS 243. SIMBAD. 斯特拉斯堡天文資料中心. 
  6. ^ 'Black hole police' discover a dormant black hole outside our galaxy. European Southern Observatory. 18 July 2022 [20 September 2022]. 
  7. ^ Stevance, H. F.; Ghodla, S.; Richards, S.; Eldridge, J. J.; Briel, M. M.; Tang, P. VFTS 243 as predicted by the BPASS fiducial models. Monthly Notices of the Royal Astronomical Society. 2023, 520 (3): 4740–4746. arXiv:2208.02258可免费查阅. doi:10.1093/mnras/stad362可免费查阅. 
  8. ^ Katie Hunt. 'Black hole police' discover dormant black hole outside our galaxy for first time. CNN. 18 July 2022 [2022-09-13].