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Related papers: Variable Stars in Young Open Cluster NGC 2244

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The field of the globular cluster NGC 362 was monitored between 1997 and 2015 in a search for variable stars. BV light curves were obtained for 151 periodic or likely periodic variables, over a hundred of which are new detections. Twelve…

Solar and Stellar Astrophysics · Physics 2016-10-21 M. Rozyczka , I. B. Thompson , W. Narloch , W. Pych , A. Schwarzenberg - Czerny

This is the second in a series of papers studying the variable stars in Large Magellanic Cloud globular clusters. The primary goal of this series is to study how RR Lyrae stars in Oosterhoff-intermediate systems compare to their…

Solar and Stellar Astrophysics · Physics 2015-06-11 Charles A. Kuehn , Horace A. Smith , Marcio Catelan , Barton J. Pritzl , Nathan De Lee , Jura Borissova

The spectral and reddening properties of 211 highly reddened proper motion members with $V < 15$ mag in 6 young galactic star clusters are investigated using low resolution spectroscopic, broad-band $UBVRIJHK$ and mid-IR data. We report…

Astrophysics · Physics 2009-11-10 Brijesh Kumar , Ram Sagar , B. B. Sanwal , M. S. Bessell

We present long-term photometric observations of the young open cluster IC 348 with a baseline time-scale of 2.4 yr. Our study was conducted with several telescopes from the Young Exoplanet Transit Initiative (YETI) network in the Bessel…

Stellar variability in the near-infrared (NIR) remains largely unexplored. The exploitation of public science archives with data-mining methods offers a perspective for the time-domain exploration of the NIR sky. We perform a comprehensive…

Solar and Stellar Astrophysics · Physics 2016-08-10 C. E. Ferreira Lopes , I. Dékány , M. Catelan , N. J. G. Cross , R. Angeloni , I. C. Leão , J. R. De Medeiros

This paper presents the first optical variability study of the Westerlund 1 super star cluster in search of massive eclipsing binary systems. A total of 129 new variable stars have been identified, including the discovery of 4 eclipsing…

Astrophysics · Physics 2008-11-26 Alceste Z. Bonanos

We have performed a search for variable stars in the dwarf irregular galaxy NGC 6822 using wide-field multi-epoch VI photometry down to a limiting magnitude $V$ $\sim$ 22. Apart from the Cepheid variables in this galaxy already reported in…

Astrophysics · Physics 2009-11-11 R. E. Mennickent , W. Gieren , I. Soszynski , G. Pietrzynski

We present a new catalogue of variable stars compiled from data taken for the University of New South Wales Extrasolar Planet Search. From 2004 October to 2007 May, 25 target fields were each observed for 1-4 months, resulting in ~87000…

We present a catalog of 1,143 periodic variables, compiled from our image-subtracted photometric analysis of the K2 Campaign-0 super stamp. This super stamp is centered on the open clusters M35 and NGC 2158. Approximately 46% of our…

Solar and Stellar Astrophysics · Physics 2020-01-29 M. Soares-Furtado , J. D. Hartman , W. Bhatti , L. G. Bouma , T. Barna , G. A. Bakos

We have undertaken a long-term project, Planets in Stellar Clusters Extensive Search (PISCES), to search for transiting planets in open clusters. In this paper we present the results for NGC 2158, an intermediate age, populous cluster. We…

The field of the globular cluster M12 (NGC 6218) was monitored between 1995 and 2009 in a search for variable stars. $BV$ light curves were obtained for 36 periodic or likely periodic variables. Thirty-four of these are new detections.…

Solar and Stellar Astrophysics · Physics 2015-09-11 J. Kaluzny , I. B. Thompson , W. Narloch , W. Pych , M. Rozyczka

We present the results of a search for variable stars in the globular cluster NGC 5286, which has recently been suggested to be associated with the Canis Major dwarf spheroidal galaxy. 57 variable stars were detected, only 19 of which had…

In a sample of six young open clusters we investigated 1753 objects using the narrow band, three filter Delta a photometric system resulting in the detection of eleven bona-fide magnetic chemically peculiar (CP) stars and five Be or…

Astrophysics · Physics 2009-11-11 E. Paunzen , M. Netopil , I. Kh. Iliev , H. M. Maitzen , A. Claret , O. I. Pintado

Based on over 5400 BV images of 47 Tuc collected between 1998 and 2010 we obtained light curves of 65 variables, 21 of which are newly detected objects. New variables are located mostly just outside of the core in a region poorly studied by…

Solar and Stellar Astrophysics · Physics 2014-05-26 J. Kaluzny , M. Rozyczka , W. Pych , W. Krzeminski , K. Zloczewski , W. Narloch

We present a variable star catalog of an extensive ground-based wide-field variability survey in the globular cluster omega Centauri. Using the ANU 40-inch (1m) telescope at Siding Spring Observatory, the cluster was observed with a 52'x52'…

Astrophysics · Physics 2008-11-26 David T. F Weldrake , Penny D Sackett , Terry J Bridges

We present evidence that the globular cluster NGC 6397 contains two distinct classes of centrally-concentrated UV-bright stars. Color-magnitude diagrams constructed from U, B, V, and I data obtained with the HST/WFPC2 reveal seven UV-bright…

We present results of a photometric survey for variable stars in the field of the globular cluster Omega Centauri. The observed region was centered roughly on the cluster core and covered 644 arcmin^2. The cluster was monitored on 59 nights…

Astrophysics · Physics 2009-11-10 J. Kaluzny , A. Olech , I. B. Thompson , W. Pych , W. Krzeminski , A. Schwarzenberg-Czerny

We present results of a search for variable stars in a region of the globular cluster NGC 4147 based on photometric observations with 4k x 4k CCD imager mounted at the axial port of the recently installed 3.6 m Devasthal optical telescope…

We present the second Galaxy Evolution Explorer (GALEX) Ultraviolet Variability (GUVV-2) Catalog that contains information on 410 newly discovered time-variable sources gained through simultaneous near (NUV 1750-2750A) and far (FUV…

Astrophysics · Physics 2009-11-13 Jonathan M. Wheatley , Barry Y. Welsh , Stanley E. Browne

The number of known periodic variables has grown rapidly in recent years. Thanks to its large field of view and faint limiting magnitude, the Zwicky Transient Facility (ZTF) offers a unique opportunity to detect variable stars in the…

Solar and Stellar Astrophysics · Physics 2020-07-29 Xiaodian Chen , Shu Wang , Licai Deng , Richard de Grijs , Ming Yang , Hao Tian