首页     开始     To Survive in the Universe    
Inhabited Sky
    News@Sky     天文图片     收集     论坛     Blog New!     常见问题     新闻     登录  

HD 59411


目录

图像

上传图像

DSS Images   Other Images


相关文章

Tertiary companions to close spectroscopic binaries
We have surveyed a sample of 165 solar-type spectroscopic binaries (SB)with periods from 1 to 30 days for higher-order multiplicity. Asubsample of 62 targets were observed with the NACO adaptive opticssystem and 13 new physical tertiary companions were detected. Anadditional 12 new wide companions (5 still tentative) were found usingthe 2MASS all-sky survey. The binaries belong to 161 stellar systems; ofthese 64 are triple, 11 quadruple and 7 quintuple. After correction forincompleteness, the fraction of SBs with additional companions is foundto be 63% ± 5%. We find that this fraction is a strong functionof the SB period P, reaching 96% for P<3d and dropping to34% for P>12^d. Period distributions of SBs with and withouttertiaries are significantly different, but their mass ratiodistributions are identical. The statistical data on the multiplicity ofclose SBs presented in this paper indicates that the periods and massratios of SBs were established very early, but the periods of SB systemswith triples were further shortened by angular momentum exchange withcompanions.

提交文章


相关链接

  • - 没有找到链接 -
提交链接


下列团体成员


观测天体数据

星座:船尾座
右阿森松:07h28m41.08s
赤纬:-29°07'07.2"
视星:6.685
距离:112.74 天文距离
右阿森松适当运动:58.6
赤纬适当运动:-21.4
B-T magnitude:8.136
V-T magnitude:6.805

目录:
适当名称   (Edit)
HD 1989HD 59411
TYCHO-2 2000TYC 6550-1674-1
USNO-A2.0USNO-A2 0600-06312047
HIPHIP 36328

→ 要求更多目录从vizier