Volume 405, Number 1, July I 2003
|Page(s)||231 - 236|
|Section||Stellar structure and evolution|
|Published online||16 June 2003|
Search for A–F Spectral type pulsating components in Algol-type eclipsing binary systems*
Korea Astronomy Observatory, Daejeon, 305-348, Korea
2 Department of Astronomy and Space Science, Chungbuk National University, Cheongju, 361-763, Korea
3 Astronomical Observatory, Odessa National University, Shevchenko Park, Odessa, 65014, Ukraine
4 Astrophysical Research Center for the Structure and Evolution of the Cosmos, Sejong University, Seoul, 143-747, Korea
5 Department of Earth Science Education, Chonbuk National University, Chonju, 561-756, Korea
Corresponding author: S.-L. Kim, email@example.com
Accepted: 2 April 2003
We present the results of a systematic search for pulsating components in Algol-type eclipsing binary systems. A total number of 14 eclipsing binaries with A–F spectral type primary components were observed for 22 nights. We confirmed small-amplitude oscillating features of a recently detected pulsator TW Dra, which has a pulsating period of 0.053 day and a semi-amplitude of about 5 mmag in B-passband. We discovered new pulsating components in two eclipsing binaries of RX Hya and AB Per. The primary component of RX Hya is pulsating with a dominant period of 0.052 day and a semi-amplitude of about 7 mmag. AB Per has also a pulsating component with a period of 0.196 day and a semi-amplitude of about 10 mmag in B-passband. We suggest that these two new pulsators are members of the newly introduced group of mass-accreting pulsating stars in semi-detached Algol-type eclipsing binary systems.
Key words: stars: binaries: eclipsing / stars: variables: δ Sct / stars: individual: TW Dra, RX Hya, AB Per
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.