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HD 283572

天球赤道座标星图 04h 21m 58.8483s, +28° 18′ 06.5119″
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HD 283572

结合y通道(近红外)和可见光的金牛座V987光变曲线,改编自斯特拉斯迈尔(Strassmeier)和赖斯(Rice)(1998)[1]
观测资料
历元 J2000
星座 金牛座
星官
赤经 04h 21m 58.8483s[2]
赤纬 +28° 18′ 06.5119″[2]
视星等(V)
特性
演化阶段主序前星[3]
光谱分类G5[4]
视星等 (B)9.80[2]
视星等 (g)8.80[5]
视星等 (R)9.14[2]
视星等 (J)7.414[2]
变星类型T Tau[4]
天体测定
径向速度 (Rv)15.0+1.5
[4] km/s
自行 (μ) 赤经:8.84+0.03
mas/yr
赤纬:-26.426+0.017
mas/yr
视差 (π)7.8735 ± 0.0190[5] mas
距离414.2 ± 1.0 ly
(127.0 ± 0.3 pc)
详细资料 [4]
质量1.6 M
半径2.2 R
亮度5.5 L
温度5770 K
金属量 [Fe/H]0.7+0.2
[3] dex
自转1.55 d[3]
自转速度 (v sin i)78[3] km/s
年龄9 Myr
其他命名
HDE 283572、2MASS J04215884+2818066、BD+27 657、GSC 01828-00481、HIP 20388、TYC 1828-481-1、V987 Tauri、Gaia DR2 164536250037820160
参考数据库
SIMBAD资料

HD 283572是位于金牛座的一颗年轻金牛座T型主序前星,属于金牛座分子云,距离约414 光年[3]。它已经剥离了它的胎衣英语birth shroud,是一颗演化相当成熟的原恒星[4]。这颗恒星发出非常高的X射线,通量为1031ergs/s。与磁活动相关的辐射通量导致了3kEv的高日冕温度和规则的耀斑[6]。当HD 283572最终成为主序星时,将演化为A型主序星[3]。它不再吸积质量,并与原行星盘的残余物磁性解耦[3],属于盘面演化第三阶段的终端[7]

原行星系统

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HD 283572被少量(<0.0004 M)和倾斜不确定的微弱原行星盘包围。不同的仪器量测出圆盘相对于天空平面的倾斜度在35度到60度之间[7]。对行星凌日进行了搜索,但截至2019年没有发现行星[8]

参考资料

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  1. ^ Strassmeier, K. G.; Rice, J. B. Doppler imaging of stellar surface structure. IX. A high-resolution image of the weak-lined T Tauri star HDE 283572 = V987 Tauri. Astronomy and Astrophysics. November 1998, 339: 497–506 [8 April 2022]. Bibcode:1998A&A...339..497S. (原始内容存档于2022-04-08). 
  2. ^ 2.0 2.1 2.2 2.3 2.4 HD 283572. SIMBAD. 斯特拉斯堡天文资料中心. 
  3. ^ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Scelsi, L.; Maggio, A.; Peres, G.; Pallavicini, R., Coronal properties of G-type stars in different evolutionary phases, Astronomy & Astrophysics, 2005, 432 (2): 671–685, Bibcode:2005A&A...432..671S, S2CID 15298988, arXiv:astro-ph/0501631可免费查阅, doi:10.1051/0004-6361:20041739 
  4. ^ 4.0 4.1 4.2 4.3 4.4 Torres, Rosa M.; Loinard, Laurent; Mioduszewski, Amy J.; Rodriguez, Luis F., VLBA Determination of the Distance to Nearby Star‐forming Regions. II. Hubble 4 and HDE 283572 in Taurus, The Astrophysical Journal, 2007, 671 (2): 1813–1819, Bibcode:2007ApJ...671.1813T, S2CID 16357104, arXiv:0708.4403可免费查阅, doi:10.1086/522924 
  5. ^ 5.0 5.1 Brown, A. G. A.; et al. Gaia Early Data Release 3: Summary of the contents and survey properties. Astronomy & Astrophysics. 2021, 649: A1. Bibcode:2021A&A...649A...1G. S2CID 227254300. arXiv:2012.01533可免费查阅. doi:10.1051/0004-6361/202039657可免费查阅.  已忽略未知参数|collaboration= (帮助) (勘误: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  6. ^ Favata, F.; Micela, G.; Sciortino, S., X-ray spectroscopy of the weak-lined T Tauri star HD 283572, Astronomy and Astrophysics, 1998, 336: 413–420, Bibcode:1998A&A...337..413F 
  7. ^ 7.0 7.1 Yasui, Chikako; Hamano, Satoshi; Fukue, Kei; Kondo, Sohei; Sameshima, Hiroaki; Takenaka, Keiichi; Matsunaga, Noriyuki; Ikeda, Yuji; Kawakita, Hideyo; Otsubo, Shogo; Watase, Ayaka; Taniguchi, Daisuke; Mizumoto, Misaki; Izumi, Natsuko; Kobayashi, Naoto, Possible Progression of Mass-flow Processes around Young Intermediate-mass Stars Based on High-resolution Near-infrared Spectroscopy. I. Taurus, The Astrophysical Journal, 2019, 886 (2): 115, Bibcode:2019ApJ...886..115Y, S2CID 202718804, arXiv:1909.09850可免费查阅, doi:10.3847/1538-4357/ab45ee 
  8. ^ Hambálek, Ľ.; Vaňko, M.; Paunzen, E.; Smalley, B., T Tauri stars in the SuperWASP and NSVS surveys, Monthly Notices of the Royal Astronomical Society, 2019, 483 (2): 1642–1654, Bibcode:2019MNRAS.483.1642H, arXiv:1811.08655可免费查阅, doi:10.1093/mnras/sty3151