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DOI | 10.1126/science.aal2879 |
Relativistic deflection of background starlight measures the mass of a nearby white dwarf star | |
Sahu, Kailash C.1; Anderson, Jay1; Casertano, Stefano1; Bond, Howard E.2; Bergeron, Pierre3; Nelan, Edmund P.1; Pueyo, Laurent1; Brown, Thomas M.1; Bellini, Andrea1; Levay, Zoltan G.1; Sokol, Joshua1; Dominik, Martin4; Calamida, Annalisa1; Kains, Noe1; Livio, Mario5 | |
2017-06-09 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 356期号:6342页码:1046-1050 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada; Scotland |
英文摘要 | Gravitational deflection of starlight around the Sun during the 1919 total solar eclipse provided measurements that confirmed Einstein's general theory of relativity. We have used the Hubble Space Telescope to measure the analogous process of astrometric microlensing caused by a nearby star, the white dwarf Stein 2051 B. As Stein 2051 B passed closely in front of a background star, the background star's position was deflected. Measurement of this deflection at multiple epochs allowed us to determine the mass of Stein 2051 B-the sixth-nearest white dwarf to the Sun-as 0.675 +/- 0.051 solar masses. This mass determination provides confirmation of the physics of degenerate matter and lends support to white dwarf evolutionary theory. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402871700047 |
WOS关键词 | HUBBLE-SPACE-TELESCOPE ; RADIUS RELATION ; MICROLENSING EVENTS ; PROPER MOTIONS ; GALACTIC HALO ; ASTROMETRY ; CATALOG ; SYSTEM ; CONSTRAINTS ; ISOCHRONES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196217 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA; 2.Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA; 3.Univ Montreal, Dept Phys, CP 6128,Succ Ctr Ville, Montreal, PQ H3C 3J7, Canada; 4.Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland; 5.Univ Nevada, Dept Phys & Astron, 4505 South Maryland Pkwy, Las Vegas, NV 89154 USA |
推荐引用方式 GB/T 7714 | Sahu, Kailash C.,Anderson, Jay,Casertano, Stefano,et al. Relativistic deflection of background starlight measures the mass of a nearby white dwarf star[J]. SCIENCE,2017,356(6342):1046-1050. |
APA | Sahu, Kailash C..,Anderson, Jay.,Casertano, Stefano.,Bond, Howard E..,Bergeron, Pierre.,...&Livio, Mario.(2017).Relativistic deflection of background starlight measures the mass of a nearby white dwarf star.SCIENCE,356(6342),1046-1050. |
MLA | Sahu, Kailash C.,et al."Relativistic deflection of background starlight measures the mass of a nearby white dwarf star".SCIENCE 356.6342(2017):1046-1050. |
条目包含的文件 | 条目无相关文件。 |
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