Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Radial velocity measurements of the chromospherically-active stars. i. BD + 25°2511 (1993)
    Springer
    Astrophysics and space science 200 (1993), S. 195-199 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper is the first of a series on radial velocities measures of the chromospherically-active and suspected stars. The chromospherically-active star BD + 25°2511 = HZ Com is found to be double-lined spectroscopic binary with an orbital period of3.558317 days and an eccentricity of0.013 ± 0.006. The orbital period does not differ substantially from the previously determined photometric period. If the photometric period is correct, this system is rotating synchronously and imposes important constraints on theories of synchronization and circularization of binary systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00627130
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Radial velocity measurements of the chromospherically-active stars (II) (1994)
    Springer
    Astrophysics and space science 220 (1994), S. 97-105 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract From two sets of the spectroscopic observations covering a ten year period we have obtained 59 radial velocities of the chromospherically-active star HD 28591 = V492 Per. It is a G9III single-lined spectroscopic binary with a period of 21.2910 days and a circular orbit. Thev sini of 24.6 km s−1, results in a minimum radius 10.3R ⊙. We estimate a distance of 165 ± 40 pc and an orbital inclination of 65 ± 25 degrees. The secondary is probably a mid to late-type K dwarf. The star is brighter than the limiting magnitude of theBright Star Catalogue. The mean photometric and the orbital periods are identical within their uncertainties. Since the star fills a significant fraction of its Roche lobe, about 62%, the photometric light curve may be the result of starspots and a modest ellipticity effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00628080
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...