dc.contributor.author |
Safonova, M |
|
dc.contributor.author |
Stalin, C. S |
|
dc.date.accessioned |
2011-11-17T05:28:48Z |
|
dc.date.available |
2011-11-17T05:28:48Z |
|
dc.date.issued |
2011-12 |
|
dc.identifier.citation |
The Astronomical Journal, Vol. 142, No. 6, 179 |
en |
dc.identifier.uri |
http://hdl.handle.net/2248/5618 |
|
dc.description |
Open Access |
en |
dc.description.abstract |
We present the results of a commissioning campaign to observe Galactic globular clusters for the search of microlensing events. The central 10' × 10' region of the globular cluster NGC 5024 was monitored using the 2 m Himalayan Chandra Telescope in R-band for a period of about 8 hr on 2010 March 24. Light curves were obtained for nearly 10,000 stars using a modified Differential Image Analysis technique. We identified all known variables within our field of view and revised the periods and status of some previously reported short-period variables. We report about 70 new variable sources and present their equatorial coordinates, periods, light curves, and possible types. Out of these, 15 are SX Phe stars, 10 are W UMa-type stars, and 14 are probable RR Lyrae stars. Nine of the newly discovered SX Phe stars and one eclipsing binary belong to the blue straggler star population. |
en |
dc.language.iso |
en |
en |
dc.publisher |
IOP Publishing |
en |
dc.relation.uri |
http://dx.doi.org/10.1088/0004-6256/142/6/179 |
en |
dc.rights |
© IOP Publishing |
en |
dc.subject |
Blue stragglers |
en |
dc.subject |
Globular clusters: general |
en |
dc.subject |
Globular clusters: individual (M53) |
en |
dc.subject |
Stars: variables: general |
en |
dc.title |
Variables in Globular Cluster NGC 5024 |
en |
dc.type |
Article |
en |