Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987baicz..38...52h&link_type=abstract
Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 38, Jan. 1987, p. 52-58.
Astronomy and Astrophysics
Astronomy
7
Binary Stars, Luminosity, Pulsars, Radial Velocity, Stellar Evolution, Supergiant Stars, Mass Ratios, Orbits, Stellar Mass, Stellar Temperature, Tables (Data), Velocity Distribution
Scientific paper
Simple arguments are presented to show that the interpretation of the observed semi-periodic light or radial-velocity variations of supergiants in terms of non-radial pulsations of the objects in question is not as straightforward as often believed. It is demonstrated that the observed semi-period-luminosity-colour relation can also be derived under the assumption of rotational modulation or orbital motion in a binary system. Both these alternatives are investigated in some detail. A working hypothesis that at least some of the variable supergiants are in fact contact or nearly contact more massive components of unrecognized binary systems of low mass ratio seems to be worthy of further study.
No associations
LandOfFree
Non-canonical insights into the evolution of stars. II - Are variable supergiants indeed pulsating? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Non-canonical insights into the evolution of stars. II - Are variable supergiants indeed pulsating?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-canonical insights into the evolution of stars. II - Are variable supergiants indeed pulsating? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1623403