On the first delta Scuti-like pulsating Ap star in an eclipsing binary

0534658 - ASÚ 2021 RIV SK eng J - Journal Article
Skarka, Marek - Kabáth, Petr - Paunzen, E. - Mašek, Martin - Žák, J. - Janík, J.
On the first delta Scuti-like pulsating Ap star in an eclipsing binary.
Contributions of the Astronomical Observatory Skalnaté Pleso. Roč. 50, č. 2 (2020), s. 630-631. ISSN 1335-1842. E-ISSN 1336-0337
Institutional support: RVO:67985815 ; RVO:68378271
Keywords : stars * chemically peculiar * eclipsing binaries
OECD category: Astronomy (including astrophysics,space science); Astronomy (including astrophysics,space science) (FZU-D)
Impact factor: 0.316, year: 2020
Method of publishing: Open access

HD99458 was recently discovered to be a first object of its kind: a short-period eclipsing binary hosts a spotted, chemically peculiar A-type primary star that is a delta Scuti pulsator, and an M-dwarf secondary. These phenomena should not co-exist at the same time. Based on new photometric data we find that the previously published period of the main pulsation mode is a Nyquist alias of the true period (0.036 d, and not 0.052 d) given by the Kepler sampling.
Permanent Link: http://hdl.handle.net/11104/0312830