RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey

Daniel Martyn Bramich; Khalid Abdulla T Alsubai; A. Arellano Ferro; Neil Parley; Andrew Collier Cameron; Keith Douglas Horne; D. Pollacco; R. G. West

RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey

Daniel Martyn Bramich, Khalid Abdulla T Alsubai, A. Arellano Ferro, Neil Parley, Andrew Collier Cameron, Keith Douglas Horne, D. Pollacco, R. G. West

School of Physics and Astronomy

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Abstract

We used the light curve archive of the Qatar Exoplanet Survey to investigate the RR Lyrae variable stars listed in the GCVS. Of 588variables studied, we reclassified 14 as eclipsing binaries, one as an RS CVn type variable, one as an irregular variable, four as classical Cepheids, and one as a type II Cepheid, while also improving their periods. We also report new RR Lyrae sub-type classifications for 65variables and improve on the GCVS period estimates for 135 RR Lyrae variables. There are seven double-mode RR Lyrae stars in the sample for which we measured their fundamental and first overtone periods. Finally,we detected the Blazhko effect in 38 of the RR Lyrae stars for the first time and we successfully measured the Blazhko period for 26 of them.

Original language	English
Article number	6106
Journal	Information Bulletin on Variable Stars
Volume	6106
Publication status	Published - 1 May 2014

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Horne_2014_IBVS_RR
Copyright 2014 the Authors. This is an open access article licensed under a CC BY-NC-ND Creative Commons licence. This is the final published version of the work, which was originally published at http://ibvs.konkoly.hu/pub/ibvs/6101/6106.pdf
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@article{17cbbdc6e12d4bb0b0ee9b38ba86b2ae,

title = "RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey",

abstract = "We used the light curve archive of the Qatar Exoplanet Survey to investigate the RR Lyrae variable stars listed in the GCVS. Of 588variables studied, we reclassified 14 as eclipsing binaries, one as an RS CVn type variable, one as an irregular variable, four as classical Cepheids, and one as a type II Cepheid, while also improving their periods. We also report new RR Lyrae sub-type classifications for 65variables and improve on the GCVS period estimates for 135 RR Lyrae variables. There are seven double-mode RR Lyrae stars in the sample for which we measured their fundamental and first overtone periods. Finally,we detected the Blazhko effect in 38 of the RR Lyrae stars for the first time and we successfully measured the Blazhko period for 26 of them.",

author = "Bramich, {Daniel Martyn} and Alsubai, {Khalid Abdulla T} and {Arellano Ferro}, A. and Neil Parley and Cameron, {Andrew Collier} and Horne, {Keith Douglas} and D. Pollacco and West, {R. G.}",

note = "This publication was made possible by NPRP grant # X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). AAF is grateful to DGAPA-UNAM for grant number IN104612.",

year = "2014",

month = may,

day = "1",

language = "English",

volume = "6106",

journal = "Information Bulletin on Variable Stars",

issn = "0374-0676",

publisher = "Hungarian Academy of Sciences (Konkoly Observatory)",

}

TY - JOUR

T1 - RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey

AU - Bramich, Daniel Martyn

AU - Alsubai, Khalid Abdulla T

AU - Arellano Ferro, A.

AU - Parley, Neil

AU - Cameron, Andrew Collier

AU - Horne, Keith Douglas

AU - Pollacco, D.

AU - West, R. G.

N1 - This publication was made possible by NPRP grant # X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). AAF is grateful to DGAPA-UNAM for grant number IN104612.

PY - 2014/5/1

Y1 - 2014/5/1

N2 - We used the light curve archive of the Qatar Exoplanet Survey to investigate the RR Lyrae variable stars listed in the GCVS. Of 588variables studied, we reclassified 14 as eclipsing binaries, one as an RS CVn type variable, one as an irregular variable, four as classical Cepheids, and one as a type II Cepheid, while also improving their periods. We also report new RR Lyrae sub-type classifications for 65variables and improve on the GCVS period estimates for 135 RR Lyrae variables. There are seven double-mode RR Lyrae stars in the sample for which we measured their fundamental and first overtone periods. Finally,we detected the Blazhko effect in 38 of the RR Lyrae stars for the first time and we successfully measured the Blazhko period for 26 of them.

AB - We used the light curve archive of the Qatar Exoplanet Survey to investigate the RR Lyrae variable stars listed in the GCVS. Of 588variables studied, we reclassified 14 as eclipsing binaries, one as an RS CVn type variable, one as an irregular variable, four as classical Cepheids, and one as a type II Cepheid, while also improving their periods. We also report new RR Lyrae sub-type classifications for 65variables and improve on the GCVS period estimates for 135 RR Lyrae variables. There are seven double-mode RR Lyrae stars in the sample for which we measured their fundamental and first overtone periods. Finally,we detected the Blazhko effect in 38 of the RR Lyrae stars for the first time and we successfully measured the Blazhko period for 26 of them.

UR - http://adsabs.harvard.edu/abs/2014IBVS.6106....1B

UR - http://ibvs.konkoly.hu/pub/ibvs/6101/6106.pdf

M3 - Article

SN - 0374-0676

VL - 6106

JO - Information Bulletin on Variable Stars

JF - Information Bulletin on Variable Stars

M1 - 6106

ER -

RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey

Abstract

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Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014

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RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey

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Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014

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