格利泽514

格利泽514，又稱BD+11 2576或HIP 65859, 是一顆位於處女座的紅矮星，距離太陽約24.87光年。 格利泽514的金屬量Fe/H指數在很大程度上是未知的，數據的中值為-0.4至+0.18。這種差異是由於Gliese 514的恆星光譜的特殊性造成的。光譜的特殊性也會影響恆星溫度測量的準確性， 數值可低至2901 K。格利泽514的光譜顯示出發射線，但恆星本身的星斑活動很低。 截至2020年，並沒有發現任何恆星伴星。 目前計算太陽正穿過格利泽 514的奧爾特雲尾部。因此，未來穿越太陽系的星際天體可能源自格利泽 514。 自2019年以來，人們懷疑在格利泽 514周圍存在一個以軌道周期為15天運行的行星。 但是，該行星尚未得到證實。相反，在2022年，一顆名為格利泽 514 b的超級地球行星通過視向速度法在偏心140天的軌道上被發現。行星軌道部分位於母星宜居帶內，行星平衡溫度沿軌道平均為202 K。 恆星的紅外過量也表明系統中可能存在岩屑盤。 BD+11 2576. SIMBAD. 斯特拉斯堡天文資料中心.  Lindegren, Lennart; Dravins, Dainis, Astrometric radial velocities for nearby stars, Astronomy & Astrophysics, 2021, 652: A45, Bibcode:2021A&A...652A..45L, S2CID 234778154, arXiv:2105.09014 , doi:10.1051/0004-6361/202141344  Lindgren, Sara; Heiter, Ulrike, Metallicity determination of M dwarfs, Astronomy & Astrophysics, 2017, 604: A97, Bibcode:2017A&A...604A..97L, S2CID 119216828, arXiv:1705.08785 , doi:10.1051/0004-6361/201730715  Manara, C. F.; et al, PENELLOPE: The ESO data legacy program to complement the Hubble UV Legacy Library of Young Stars (ULLYSES), Astronomy & Astrophysics, 2021, 650: A196, S2CID 232320330, arXiv:2103.12446 , doi:10.1051/0004-6361/202140639  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. Ghosh, Samrat; Ghosh, Supriyo; Das, Ramkrishna; Mondal, Soumen; Khata, Dhrimadri, Understanding the physical properties of young M dwarfs: NIR spectroscopic studies, Monthly Notices of the Royal Astronomical Society, 2020, 493 (3): 4533–4550, arXiv:2002.05762 , doi:10.1093/mnras/staa427  Berger, D. H.; Gies, D. R.; McAlister, H. A.; Brummelaar, T. A. ten; Henry, T. J.; Sturmann, J.; Sturmann, L.; Turner, N. H.; Ridgway, S. T.; Aufdenberg, J. P.; Merand, A., First Results from the CHARA Array. IV. The Interferometric Radii of Low‐Mass Stars, The Astrophysical Journal, 2006, 644 (1): 475–483, Bibcode:2006ApJ...644..475B, S2CID 14966363, arXiv:astro-ph/0602105 , doi:10.1086/503318  Damasso, M.; et al, A quarter century of spectroscopic monitoring of the nearby M dwarf Gl 514, Astronomy & Astrophysics, 2022, 666: A187, S2CID 248157318, arXiv:2204.06376 , doi:10.1051/0004-6361/202243522  Olander, T.; Heiter, U.; Kochukhov, O., Comparative high-resolution spectroscopy of M dwarfs: Exploring non-LTE effects, Astronomy & Astrophysics, 2021, 649: A103, Bibcode:2021A&A...649A.103O, S2CID 231942628, arXiv:2102.08836 , doi:10.1051/0004-6361/202039747  Maldonado, J.; Micela, G.; Baratella, M.; d'Orazi, V.; Affer, L.; Biazzo, K.; Lanza, A. F.; Maggio, A.; González Hernández, J. I.; Perger, M.; Pinamonti, M.; Scandariato, G.; Sozzetti, A.; Locci, D.; Di Maio, C.; Bignamini, A.; Claudi, R.; Molinari, E.; Rebolo, R.; Ribas, I.; Toledo-Padrón, B.; Covino, E.; Desidera, S.; Herrero, E.; Morales, J. C.; Suárez-Mascareño, A.; Pagano, I.; Petralia, A.; Piotto, G.; Poretti, E. HADES RV programme with HARPS-N at TNG. XII. The abundance signature of M dwarf stars with planets. Astronomy and Astrophysics. 2020, 644: A68. Bibcode:2020A&A...644A..68M. S2CID 225094682. arXiv:2010.14867 . doi:10.1051/0004-6361/202039478.  Determinations of the parallaxes of BD +11 2576 and BD +18 683. [2023-03-24]. （原始内容存档于2023-03-07）.  Reiners, A., The narrowest M-dwarf line profiles and the rotation-activity connection at very slow rotation, Astronomy and Astrophysics, 2007, 467 (1): 259, Bibcode:2007A&A...467..259R, S2CID 8672566, arXiv:astro-ph/0702634 , doi:10.1051/0004-6361:20066991  Lamman, Claire; Baranec, Christoph; Berta-Thompson, Zachory K.; Law, Nicholas M.; Schonhut-Stasik, Jessica; Ziegler, Carl; Salama, Maïssa; Jensen-Clem, Rebecca; Duev, Dmitry A.; Riddle, Reed; Kulkarni, Shrinivas R.; Winters, Jennifer G.; Irwin, Jonathan M., Robo-AO M-dwarf Multiplicity Survey: Catalog, The Astronomical Journal, 2020, 159 (4): 139, Bibcode:2020AJ....159..139L, S2CID 210718832, arXiv:2001.05988 , doi:10.3847/1538-3881/ab6ef1  Portegies Zwart, S., Oort cloud Ecology, Astronomy & Astrophysics, 2021, 647: A136, S2CID 226976082, arXiv:2011.08257 , doi:10.1051/0004-6361/202038888  Barnes, J. R.; et al. Frequency of planets orbiting M dwarfs in the Solar neighbourhood. 2019-06-11. arXiv:1906.04644  [astro-ph.EP] （英语）.  Tanner, Angelle; Plavchan, Peter; Bryden, Geoff; Kennedy, Grant; Matrá, Luca; Cronin-Coltsmann, Patrick; Lowrance, Patrick; Henry, Todd; Riaz, Basmah; Gizis, John E.; Riedel, Adric; Choquet, Elodie, Herschel Observations of Disks around Late-type Stars, Publications of the Astronomical Society of the Pacific, 2020, 132 (1014): 084401, Bibcode:2020PASP..132h4401T, S2CID 216553868, arXiv:2004.12597 , doi:10.1088/1538-3873/ab895f