RESOLVING THE DELTA ANDROMEDAE SPECTROSCOPIC BINARY WITH DIRECT IMAGING

被引：7

作者：

Bottom, Michael ^{[1
]}

Kuhn, Jonas ^{[2
,3
]}

Mennesson, Bertrand ^{[2
]}

Mawet, Dimitri ^{[1
]}

Shelton, Jean C. ^{[2
]}

Wallace, J. Kent ^{[2
]}

Serabyn, Eugene ^{[2
]}

机构：

[1] CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[3] ETH, Inst Astron, CH-8093 Zurich, Switzerland

来源：

ASTROPHYSICAL JOURNAL | 2015年 / 809卷 / 01期

关键词：

binaries: spectroscopic; instrumentation: adaptive optics; instrumentation: high angular resolution; stars: imaging; ADAPTIVE OPTICS; HIPPARCOS; ASTROMETRY;

D O I：

10.1088/0004-637X/809/1/11

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a direct image of the innermost companion to the red giant delta Andromedae using the Stellar Double Coronagraph at the Palomar Observatory. We use a Markov Chain Monte Carlo based algorithm to simultaneously reduce the data and perform astrometry and photometry of the companion. We determine that the companion is most likely a main sequence K-type star and is certainly not the previously hypothesized white dwarf.

引用

页数：4

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