A search for variable subdwarf B stars in TESS Full Frame Images III. An update on variable targets in both ecliptic hemispheres contamination analysis and new sdB pulsators

0568513 - ASÚ 2024 RIV GB eng J - Článek v odborném periodiku
Sahoo, S. K. - Baran, A.S. - Worters, H. L. - Németh, Péter - Kilkenny, D.
A search for variable subdwarf B stars in TESS Full Frame Images III. An update on variable targets in both ecliptic hemispheres contamination analysis and new sdB pulsators.
Monthly Notices of the Royal Astronomical Society. Roč. 519, č. 2 (2023), s. 2486-2499. ISSN 0035-8711. E-ISSN 1365-2966
Grant CEP: GA ČR(CZ) GA22-34467S
Institucionální podpora: RVO:67985815
Klíčová slova: asteroseismology * stars oscillations * subdwarfs
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 4.8, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1093/mnras/stac3676

We present an update on the variable star survey performed on the TESS 30 min Full Frame Image (FFI) data reported by our first two papers in this series. This update includes a contamination analysis in order to identify false positives and analysis of the TESS 10 min FFI data collected during Years 3 and 4 of the mission. We clarify the variability status of 2 995 targets identifying 1 403 variable stars. In addition, we spectroscopically classify 24 pre-filtered targets sampled with the 10 min FFI data and discover 11 new sdB pulsators. Future follow-up space- and/or ground-based data of variables reported here, to identify the nature of their variability and reveal spectroscopic parameters of the stars, would complement this work.
Trvalý link: https://hdl.handle.net/11104/0341995