HD 283572
外观
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,距离约光年外 414 [3]。它已经剥离了它的胎衣,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
[编辑]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
[编辑]- ^ 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).
- ^ 2.0 2.1 2.2 2.3 2.4 HD 283572. SIMBAD. 斯特拉斯堡天文资料中心.
- ^ 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 , doi:10.1051/0004-6361:20041739
- ^ 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 , doi:10.1086/522924
- ^ 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 . doi:10.1051/0004-6361/202039657 . 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. - ^ 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
- ^ 7.0 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 , doi:10.3847/1538-4357/ab45ee
- ^ 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 , doi:10.1093/mnras/sty3151