| |
 |
| Paper: |
Observation and Study of the Short-Period Algol-Type Binaries |
| Volume: |
451, 9th Pacific Rim Conference on Stellar Astrophysics |
| Page: |
39 |
| Authors: |
Yang, Y.; Wei, J. |
| Abstract: |
The Algol-type binaries with EA- or EB-type light curves, are
semi-detached interacting binary systems. The more massive component
with spectral type from \textrm{B} to \textrm{A} is a main sequence
star, while the less massive secondary component is a giant or
subgiant with spectral type of \textrm{F} or later-\textrm{G}. Many
special phenomena and physical processes make Alogls interesting
objects. Based on 434 identified Algols, the orbital periods for
one-third of sample stars are less than 1fd5, which is considered
as a principle for selecting the short-period Algol-type binaries.
Nine sample binaries have been studied. Based on 312 eclipsing
times, the period variations of AO Ser were analyzed and photometric
solution of GW Gem are deduced from new BVR observations.
Combining with the characteristics of orbital period changes, the
short-period Algols with P<1fd5 may evolve from the semidetached
configuration into the contact configuration by three possible
evolutionary scenarios. |
|
|
|
|
|
