Variable Stars in Palomar 13; an Evaporating Globular Cluster

dc.contributor.author	Yepez, M. A
dc.contributor.author	Ferro, A. Arellano
dc.contributor.author	Schröder, K. P.
dc.contributor.author	Muneer, S
dc.contributor.author	Giridhar, Sunetra
dc.contributor.author	Allen, Christine
dc.date.accessioned	2021-12-29T05:29:42Z
dc.date.available	2021-12-29T05:29:42Z
dc.date.issued	2021-06
dc.identifier.citation	ASP Conference Series, Vol. 529, pp. 184-188	en_US
dc.identifier.uri	http://hdl.handle.net/2248/7892
dc.description	Restricted access	en_US
dc.description.abstract	We present new CCD VI photometry of the globular cluster Pal 13. Fourier decomposition of the light curves of RRab stars lead to estimations of [Fe/H]ZW = -1.65±0.15, and a distance to the cluster of 23.67±0.57 kpc. A colour-magnitude diagram, built exclusively with likely star members, shows consistency with the above parameters and an age of 12 Gyrs. A search of variable stars in the field of view of our images revealed the variability of a red giant cluster member and of three probably non-member stars: two RRab and one BL Her star. The Gaia-DR2 proper motions of member stars in Pal 13 show a significant scatter, consistent with the scenario of the cluster being tidally stripped.	en_US
dc.language.iso	en	en_US
dc.publisher	Astronomical Society of the Pacific	en_US
dc.relation.uri	http://www.aspbooks.org/a/volumes/article_details/?paper_id=39997
dc.rights	© Astronomical Society of the Pacific
dc.title	Variable Stars in Palomar 13; an Evaporating Globular Cluster	en_US
dc.type	Article	en_US