Home     Getting Started     To Survive in the Universe    
Inhabited Sky
    News@Sky     Astro Photo     The Collection     Forum     Blog New!     FAQ     Press     Login  

HD 59411


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

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.

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:とも座
Right ascension:07h28m41.08s
Declination:-29°07'07.2"
Apparent magnitude:6.685
Distance:112.74 parsecs
Proper motion RA:58.6
Proper motion Dec:-21.4
B-T magnitude:8.136
V-T magnitude:6.805

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 59411
TYCHO-2 2000TYC 6550-1674-1
USNO-A2.0USNO-A2 0600-06312047
HIPHIP 36328

→ Request more catalogs and designations from VizieR