| SKARKA, Marek, Petr KABÁTH, Ernst PAUNZEN, Miroslav FEDURCO, Ján BUDAJ, Daniel DUPKALA, Jiří KRTIČKA, Artie P. HATZES, Theodor PRIBULLA, Š. PARIMUCHA, Zdeněk MIKULÁŠEK, E. GUENTHER, Silvia SABOTTA, Martin BLAŽEK, Jana DVOŘÁKOVÁ, L. HAMBÁLEK, Tereza KLOCOVÁ, V. KOLLÁR, E. KUNDRA, M. ŠLECHTA and M. VAŇKO. HD 99458: First time ever Ap-type star as a S Scuti pulsator in a short period eclipsing binary? Monthly Notices of the Royal Astronomical Society. Oxford: OXFORD UNIV PRESS, 2019, vol. 487, No 3, p. 4230-4237. ISSN 0035-8711. Available from: https://dx.doi.org/10.1093/mnras/stz1478. |
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@article{1538698,
author = {Skarka, Marek and Kabáth, Petr and Paunzen, Ernst and Fedurco, Miroslav and Budaj, Ján and Dupkala, Daniel and Krtička, Jiří and Hatzes, Artie P. and Pribulla, Theodor and Parimucha, Š. and Mikulášek, Zdeněk and Guenther, E. and Sabotta, Silvia and Blažek, Martin and Dvořáková, Jana and Hambálek, L. and Klocová, Tereza and Kollár, V. and Kundra, E. and Šlechta, M. and Vaňko, M.},
article_location = {Oxford},
article_number = {3},
doi = {http://dx.doi.org/10.1093/mnras/stz1478},
keywords = {techniques; photometric techniques; spectroscopic binaries; eclipsing stars; chemically peculiar stars; individual; 99458 stars; oscillations},
language = {eng},
issn = {0035-8711},
journal = {Monthly Notices of the Royal Astronomical Society},
title = {HD 99458: First time ever Ap-type star as a S Scuti pulsator in a short period eclipsing binary?},
url = {https://arxiv.org/abs/1906.01877},
volume = {487},
year = {2019}
}
TY - JOUR
ID - 1538698
AU - Skarka, Marek - Kabáth, Petr - Paunzen, Ernst - Fedurco, Miroslav - Budaj, Ján - Dupkala, Daniel - Krtička, Jiří - Hatzes, Artie P. - Pribulla, Theodor - Parimucha, Š. - Mikulášek, Zdeněk - Guenther, E. - Sabotta, Silvia - Blažek, Martin - Dvořáková, Jana - Hambálek, L. - Klocová, Tereza - Kollár, V. - Kundra, E. - Šlechta, M. - Vaňko, M.
PY - 2019
TI - HD 99458: First time ever Ap-type star as a S Scuti pulsator in a short period eclipsing binary?
JF - Monthly Notices of the Royal Astronomical Society
VL - 487
IS - 3
SP - 4230-4237
EP - 4230-4237
PB - OXFORD UNIV PRESS
SN - 00358711
KW - techniques
KW - photometric techniques
KW - spectroscopic binaries
KW - eclipsing stars
KW - chemically peculiar stars
KW - individual
KW - 99458 stars
KW - oscillations
UR - https://arxiv.org/abs/1906.01877
L2 - https://arxiv.org/abs/1906.01877
N2 - We present the discovery of a unique object, a chemically peculiar Ap-type star showing fi Scuti pulsations that, is bound in an eclipsing binary system with an orbital period shorter than 3 d. HD 99458 is therefore a complex astrophysical laboratory opening doors for studying various, often contradictory, physical phenomena at the same time. It is the first Ap star ever discovered in an eclipsing binary. The orbital period of 2.722 d is the second shortest among all known chemically peculiar (CP2) binary stars. Pulsations of (S Scuti type are also extremely rare among CP2 stars and no unambiguously proven candidate has been reported. HD 99458 was formerly thought to he a star hosting an exoplanet, but we definitely reject this hypothesis using photometric observations from the K2 mission and new radial velocity measurements. The companion is a low-mass red dwarf star (M? = 0.45(2)Mo) on an inclined orbit (i = 73.2(6) deg) that shows only grazing eclipses. The rotation and orbital periods are synchronized, while the rotation and orbital axes are misaligned. HD 99458 is an interesting system deserving of more intense investigations.
ER -
SKARKA, Marek, Petr KABÁTH, Ernst PAUNZEN, Miroslav FEDURCO, Ján BUDAJ, Daniel DUPKALA, Jiří KRTIČKA, Artie P. HATZES, Theodor PRIBULLA, Š. PARIMUCHA, Zdeněk MIKULÁŠEK, E. GUENTHER, Silvia SABOTTA, Martin BLAŽEK, Jana DVOŘÁKOVÁ, L. HAMBÁLEK, Tereza KLOCOVÁ, V. KOLLÁR, E. KUNDRA, M. ŠLECHTA and M. VAŇKO. HD 99458: First time ever Ap-type star as a S Scuti pulsator in a short period eclipsing binary? \textit{Monthly Notices of the Royal Astronomical Society}. Oxford: OXFORD UNIV PRESS, 2019, vol.~487, No~3, p.~4230-4237. ISSN~0035-8711. Available from: https://dx.doi.org/10.1093/mnras/stz1478.
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