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LHS 1140 - 版本历史
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<p><b>新页面</b></p><div>{{Starbox begin<br />
| name = LHS 1140<br />
}}<br />
{{Starbox image<br />
| image = [[File:Artist’s impression of the super-Earth exoplanet LHS 1140b.jpg|250px]]<br />
| caption = LHS 1140與其行星LHS 1140b想像圖<br />
}}<br />
{{Starbox observe<br />
| epoch = J2000.0<br />
| constell = [[鯨魚座]]<br />
| ra = {{RA|00|44|59.31}}<ref name=2MASS>{{cite journal|title=2MASS All-Sky Catalog of Point Sources|date=2003|journal=VizieR On-line Data Catalog|author=Cutri, R. M.|volume = 2246|display-authors=etal|bibcode=2003yCat.2246....0C}}</ref><br />
| dec = {{DEC|-15|16|16.7}}<ref name=2MASS/><br />
| appmag_v = 14.18<ref name="NAT-20170419"/><br />
}}<br />
{{Starbox character<br />
| type = [[紅矮星]]<br />
| class = M4.5V<ref name="NAT-20170419"/><br />
}}<br />
{{Starbox astrometry<br />
| radial_v = -13.23 ± 0.60<ref name="NAT-20170419"/><br />
| prop_mo_ra = 317<ref name=Salim>{{cite journal|bibcode=2003ApJ...582.1011S|doi=10.1086/344822|arxiv=astro-ph/0206318|title=Improved Astrometry and Photometry for the Luyten Catalog. II. Faint Stars and the Revised Catalog|url=https://archive.org/details/sim_astrophysical-journal_2003-01-10_582_2/page/1010|journal=The Astrophysical Journal|volume=582|issue=2|pages=1011|year=2003|last1=Salim|first1=Samir|last2=Gould|first2=Andrew}}</ref><br />
| prop_mo_dec = -589<ref name=Salim/><br />
| dist_ly = 40.67 ± 1.37<br />
| dist_pc = 12.47 ± 0.42<ref name="NAT-20170419"/><br />
}}<br />
{{Starbox detail<br />
| source = <ref name="NAT-20170419"/><br />
| mass = 0.146 ± 0.009<br />
| radius = 0.186 ± 0.013<br />
| luminosity = 0.002981 ± 0.00021<br />
| temperature = 3131 ± 100<br />
| metal_fe = -0.24 ± 0.10<br />
| rotation = 131 d<br />
| age_gyr = >5<br />
}}<br />
{{Starbox catalog<br />
| names = [[格利泽近星星表|GJ]] 3053, G 270-58, G2 268-38, [[2微米全天巡天|2MASS]] J00445930-1516166.<br />
}}<br />
{{Starbox reference<br />
| Simbad = LHS+1140<br />
| ARICNS = 02969<br />
}}<br />
{{Starbox end}}<br />
'''LHS 1140'''是一颗位于[[鲸鱼座]]的[[红矮星]]，有2颗行星围绕其公转，分別是[[超级地球]][[LHS 1140 b]]、[[LHS 1140c]] 和一顆未確認的[[LHS 1140d]] 。「LHS」是Luyten Half-Second星表的縮寫，該星表收錄每年[[自行]]量超過半個角秒的恆星<ref>Luyten, Willem Jacob, Catalogue of stars with proper motions exceeding 0"5 annually, University of Minnesota, 1979</ref>。<br />
<br />
LHS 1140b这颗超级地球位于[[適居帶]]，质量约为地球的6.7±1.8倍，半径约为地球的1.4±0.1倍<ref name="NAT-20170419">{{cite journal|doi=10.1038/nature22055|title=A temperate rocky super-Earth transiting a nearby cool star|journal=Nature|volume=544|issue=7650|pages=333|year=2017|last1=Dittmann|first1=Jason A.|last2=Irwin|first2=Jonathan M.|last3=Charbonneau|first3=David|last4=Bonfils|first4=Xavier|last5=Astudillo-Defru|first5=Nicola|last6=Haywood|first6=Raphaëlle D.|last7=Berta-Thompson|first7=Zachory K.|last8=Newton|first8=Elisabeth R.|last9=Rodriguez|first9=Joseph E.|last10=Winters|first10=Jennifer G.|last11=Tan|first11=Thiam-Guan|last12=Almenara|first12=Jose-Manuel|last13=Bouchy|first13=François|last14=Delfosse|first14=Xavier|last15=Forveille|first15=Thierry|last16=Lovis|first16=Christophe|last17=Murgas|first17=Felipe|last18=Pepe|first18=Francesco|last19=Santos|first19=Nuno C.|last20=Udry|first20=Stephane|last21=Wünsche|first21=Anaël|last22=Esquerdo|first22=Gilbert A.|last23=Latham|first23=David W.|last24=Dressing|first24=Courtney D.}}</ref><ref name="NYT-20170419">{{cite news |last=Overbye |first=Dennis |authorlink=丹尼斯·奧弗拜 |title=A New Exoplanet May Be Most Promising Yet in Search for Life |url=https://www.nytimes.com/2017/04/19/science/exoplanet-signs-of-life.html |date=2017-04-19 |work=[[紐約時報|New York Times]] |accessdate=2017-04-20 |archive-date=2020-11-11 |archive-url=https://web.archive.org/web/20201111202355/https://www.nytimes.com/2017/04/19/science/exoplanet-signs-of-life.html |dead-url=no }}</ref>，由此推算其密度约为地球的2.3±0.6倍。並因為該行星有[[凌 (天體)|凌星]]現象，讓天文學家得以觀測它的大氣層。<br />
<br />
LHS 1140距离地球约39光年，形成于50亿年前，质量约为[[太阳]]的15%，自转周期为130天，没有观测到[[耀斑]]现象。<ref name="ST-20170419">{{cite web|last1=Dickinson|first1=David|title=Welcome to LHS 1140b: A Super-Earth in the Habitable Zone|url=http://www.skyandtelescope.com/astronomy-news/welcome-lhs-1140b-super-earth-habitable-zone/|website=Sky & Telescope|accessdate=2017-04-19|date=2017-04-19|archive-date=2018-09-08|archive-url=https://web.archive.org/web/20180908000944/https://www.skyandtelescope.com/astronomy-news/welcome-lhs-1140b-super-earth-habitable-zone/|dead-url=no}}</ref>其行星LHS 1140b的公转半径约为0.09个[[天文单位]]，大约每25日，公转且[[凌_(天體)|通过]]LHS 1140前一次<ref name="NAT-20170419" />。<br />
<br />
LHS 1140b是由[[MEarth計劃]]發現，並以[[高精度徑向速度行星搜索器]]（HARPS）量測出徑向速度<ref name="ST-20170419" />。<br />
<br />
{{OrbitboxPlanet begin<br />
| table_ref = <ref name="NAT-20170419"/><ref name="Ment2018"/><ref name="Feng"/><ref name=Lillo-Box2020/> <ref>{{cite journal |arxiv=2011.08815|title=Hubble WFC3 Spectroscopy of the Habitable-zone Super-Earth LHS 1140 B |year=2020 |last1=Edwards |first1=Billy |last2=Changeat |first2=Quentin |last3=Mori |first3=Mayuko|last4=Anisman |first4=Lara O. |last5=Morvan|first5=Mario |author6=Kai Hou Yip |last7=Tsiaras |first7=Angelos |last8=Al-Refaie |first8=Ahmed |last9=Waldmann |first9=Ingo |last10=Tinetti |first10=Giovanna|journal=The Astronomical Journal |volume=161 |page=44 |doi=10.3847/1538-3881/abc6a5 |s2cid=226975730 }}</ref><br />
}}<br />
}}<br />
{{OrbitboxPlanet<br />
| exoplanet = [[LHS 1140 b|b]]<br />
| mass_earth = 6.65 ± 1.82<br />
| semimajor = 0.0875<br />
| period = 24.73712 ± 0.00025<br />
| eccentricity = <0.29<br />
| inclination = 89.912 ± 0.071<br />
| radius_earth = 1.43 ± 0.10<br />
}}<br />
{{OrbitboxPlanet<br />
| exoplanet = [[LHS 1140c|c]]<br />
| mass_earth = 1.77 ± 0.17<br />
| semimajor = 0.02675 ± 0.00070<br />
| period = 3.777931 ± 0.000003<br />
| eccentricity = < 0.31<br />
| inclination = 89.92<br />
| radius_earth = 1.169 ± 0.038<br />
}}<br />
{{OrbitboxPlanet hypothetical<br />
| exoplanet = d<br />
| mass_earth = 3.9 ± 1.1<br />
| semimajor = 0.210<br />
| period = 79.22{{±|0.55|0.58}}<br />
| eccentricity = <0.45<br />
| inclination =<br />
| radius_earth = 1.2–2.6<br />
}}<br />
{{Orbitbox end}}<br />
<br />
== 參見 ==<br />
* [[GJ 1132b]]<br />
* [[GJ 1214 b]]<br />
<br />
==参考资料==<br />
{{reflist}}<br />
<br />
[[Category:紅矮星]]<br />
[[Category:类地行星]]<br />
[[Category:超级地球]]<br />
[[Category:鯨魚座]]<br />
[[Category:2MASS天体|J00445930-1516166]]<br />
[[Category:格利泽和GJ天体|3053]]</div>
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