Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2010-10-14
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
submitted to IAU Symposium 272
Scientific paper
Binary/multiple status can affect stars at all stages of their lifetimes: evolution onto the main sequence, properties on the main sequence, and subsequent evolution. 5 $M_\odot$ stars have provided a wealth of information about the binary properties fairly massive stars. The combination of cool evolved primaries and hot secondaries in Cepheids (geriatric B stars) have yielded detailed information about the distribution of mass ratios. and have also provided a surprisingly high fraction of triple systems. Ground-based radial velocity orbits combined with satellite data from Hubble, FUSE, IUE, and Chandra are needed to provide full information about the systems, including the masses. As a recent example, X-ray observations can identify low mass companions which are young enough to be physical companions. Typically binary status and properties (separation, eccentricity, mass ratio) determine whether any stage of evolution takes an exotic form.
No associations
LandOfFree
Multiplicity in 5 Msun Stars 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 Multiplicity in 5 Msun Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiplicity in 5 Msun Stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-285972