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Search for A-F Spectral type pulsating components in Algol-type eclipsing binary systems
We present the results of a systematic search for pulsating componentsin Algol-type eclipsing binary systems. A total number of 14 eclipsingbinaries with A-F spectral type primary components were observed for 22nights. We confirmed small-amplitude oscillating features of a recentlydetected pulsator TW Dra, which has a pulsating period of 0.053 day anda semi-amplitude of about 5 mmag in B-passband. We discovered newpulsating components in two eclipsing binaries of RX Hya and AB Per. Theprimary component of RX Hya is pulsating with a dominant period of 0.052day and a semi-amplitude of about 7 mmag. AB Per has also a pulsatingcomponent with a period of 0.196 day and a semi-amplitude of about 10mmag in B-passband. We suggest that these two new pulsators are membersof the newly introduced group of mass-accreting pulsating stars insemi-detached Algol-type eclipsing binary systems.Table 4 is only available in electronic form at the CDS via anonymousftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/405/231
| Discovery of Pulsations in A5(8) V Component of the Algol-type System TW Dra
Not Available
| Photometry of Comparison Stars
Not Available
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Наблюдательные данные и астрометрия
| Созвездие: | Дракон |
| Прямое восхождение: | 15h35m07.42s |
| Склонение: | +64°05'39.9" |
| Видимая звёздная величина: | 9.116 |
| Собственное движение RA: | -13.2 |
| Собственное движение Dec: | -15.4 |
| B-T magnitude: | 9.58 |
| V-T magnitude: | 9.155 |
Каталоги и обозначения:
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