格利泽3323

格利泽3323 (GJ 3323, 也称为LHS 1723) 位于波江座的一颗单星[8]。 它肉眼不可见,视星等为12.20[2]视差测量给出的距离估计为距太阳17.5光年[1]。它正以 +42.3公里/秒的径向速度漂移得更远[2]。大约104,000年前,这颗恒星被认为位于距太阳系7.34光年的范围内[9]

Gliese 3323
观测资料
历元 J2000
星座 波江座
星官
赤经 05h 01m 57.42611s[1]
赤纬 −06° 56′ 46.3718″[1]
视星等(V) 12.20[2]
特性
光谱分类M4.0Ve[3]
B−V 色指数+1.72[2]
天体测定
径向速度 (Rv)42.309±0.0809[2] km/s
自行 (μ) 赤经:−551.722±0.099[1] mas/yr
赤纬:−533.936±0.083[1] mas/yr
视差 (π)186.0466 ± 0.0277[4] mas
距离17.531 ± 0.003 ly
(5.3750 ± 0.0008 pc)
绝对星等 (MV)13.57[3]
详细资料 [5]
质量0.1705±0.0044 M
半径0.1862±0.0059 R
表面重力 (log g)5.07±0.07
亮度0.003654±0.000052 L
温度3,288±51 K
金属量 [Fe/H]+0.01±0.16 dex
自转88.50 d[6]
自转速度 (v sin i)1.0±0.8[3] km/s
其他命名
GJ 3323、​LHS 1723、​NLTT 14393、​2MASS J05015746-0656459[7]
参考资料库
SIMBAD资料
Gliese 3323 is located in the constellation Eridanus
Gliese 3323 is located in the constellation Eridanus

Gliese 3323
格利泽3323在波江座的位置

格利泽3323的恒星分类为M4.0Ve[3]。这颗恒星的质量是太阳的17%,半径是太阳的19%,光度只有太阳的0.4%[5]

行星系统

2017年3月15日,高精度径向速度行星搜索器探测到两颗围绕格利泽3323运行的行星,尽管发现团队认为格利泽3323 c是候选行星[8]。内行星格利泽3323 b可能在其恒星的星周宜居带内运行[10]

格利泽3323的行星系
成员
(依恒星距离)
质量 半长轴
(AU)
轨道周期
()
离心率 倾角 半径
b 2.02+0.26
−0.25
 M
0.03282+0.00054
−0.00056
5.3636±0.0007 0.23±0.11 ~1.3 R
c 2.31+0.50
−0.49
 M
0.1264+0.0021
−0.0022
40.54+0.21
−0.19
0.17+0.21
−0.12

参考资料

  1. ^ 1.0 1.1 1.2 1.3 1.4 Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; et al. Gaia Data Release 2. Summary of the contents and survey properties. Astronomy & Astrophysics. 2018. Bibcode:2018A&A...616A...1G. arXiv:1804.09365 . doi:10.1051/0004-6361/201833051.  VizieR中此天体在盖亚望远镜第二批数据发布的记录
  2. ^ 2.0 2.1 2.2 2.3 2.4 Soubiran, C.; et al. Gaia Data Release 2. The catalogue of radial velocity standard stars. Astronomy and Astrophysics. 2018, 616: A7. Bibcode:2018A&A...616A...7S. S2CID 52952408. arXiv:1804.09370 . doi:10.1051/0004-6361/201832795. 
  3. ^ 3.0 3.1 3.2 3.3 Davison, Cassy L.; et al. A 3D Search for Companions to 12 Nearby M-Dwarfs. The Astronomical Journal. 2015, 149 (3): 106. Bibcode:2015AJ....149..106D. S2CID 9719725. arXiv:1501.05012 . doi:10.1088/0004-6256/149/3/106. 
  4. ^ 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.
  5. ^ 5.0 5.1 Schweitzer, A.; et al. The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars. Astronomy & Astrophysics. May 2019, 625: 16. Bibcode:2019A&A...625A..68S. S2CID 102351979. arXiv:1904.03231 . doi:10.1051/0004-6361/201834965. A68. 
  6. ^ Wright, Nicholas J.; et al. The stellar rotation-activity relationship in fully convective M dwarfs. Monthly Notices of the Royal Astronomical Society. September 2018, 479 (2): 2351–2360. Bibcode:2018MNRAS.479.2351W. arXiv:1807.03304 . doi:10.1093/mnras/sty1670. 
  7. ^ LP 656-38. SIMBAD. 斯特拉斯堡天文资料中心. 
  8. ^ 8.0 8.1 Astudillo-Defru, Nicola; Forveille, Thierry; Bonfils, Xavier; Ségransan, Damien; Bouchy, François; Delfosse, Xavier; et al. The HARPS search for southern extra-solar planets. XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293. Astronomy and Astrophysics. 2017, 602. A88 [2023-03-21]. Bibcode:2017A&A...602A..88A. S2CID 119418595. arXiv:1703.05386 . doi:10.1051/0004-6361/201630153. (原始内容存档于2022-09-28). 
  9. ^ Bobylev, V. V. Stars outside the Hipparcos list closely encountering the Solar system. Astronomy Letters. November 2010, 36 (11): 816–822. Bibcode:2010AstL...36..816B. S2CID 118512652. arXiv:1009.4856 . doi:10.1134/S1063773710110071. 
  10. ^ Méndez, Abel; Rivera-Valentín, Edgard G. The Equilibrium Temperature of Planets in Elliptical Orbits. The Astrophysical Journal. 2017-02-23, 837 (1): L1. Bibcode:2017ApJ...837L...1M. ISSN 2041-8213. S2CID 119193237. arXiv:1702.07314 . doi:10.3847/2041-8213/aa5f13.