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| Paper: |
New Progress on the Short-Period Algol-type Binaries (SpABs) |
| Volume: |
482, 10th Pacific Rim Conference on Stellar Astrophysics |
| Page: |
135 |
| Authors: |
Yang, Y.-G. |
| Abstract: |
During the past three years, we preformed new photometry of seven
short-period Algol-type binaries (SpABs), using several small
telescopes at the Xinglong station of National Astronomical
Observatories of China (NAOC). Light-curves analyses and orbital
period studies are preformed. For the classic Algol-type binary XZ
And, the orbital period may be undergoing a secular period increase
with a cyclic oscillation. It is discovered that FR Ori is a
near-contact oEA-type binary with a radial pulsating primary
component. The dominant pulsation period is Ppuls=37.3 minutes.
Based on 56 semi-detached oEA stars, we determined the relation
between orbital and pulsation periods, which implies that the
pulsating frequency increases when the orbital period decreases. |
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