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Related papers: Variable Stars in Young Open Cluster NGC 2244

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We have conducted a deep photometric survey of a 0.5 deg x 0.5 deg area of the Galactic Plane using the WFI instrument on the 2.2-m ESO telescope on La Silla, Chile. The dataset comprises a total of 267 R-band images, 204 from a 16 day…

Solar and Stellar Astrophysics · Physics 2015-05-19 V. R. Miller , M. D. Albrow , C. Afonso , Th. Henning

We have monitored a 3 deg2 area toward Serpens Main in the Pan-STARRS1 r, i, and z bands from 2016 April to September. Light curves of more than 11,000 stars in each band were obtained, and 143 variables have been identified. Among those,…

Solar and Stellar Astrophysics · Physics 2021-07-14 Jia Yin , Zhiwei Chen , Rolf Chini , Martin Haas , Sadegh Noroozi , Yongqiang Yao , Zhibo Jiang , Xuan Qian , Liyong Liu , Yao Li

We report on the discovery and analysis of 14 short-period variable stars in the field of the southern globular cluster NGC 3201, located within roughly two magnitudes on either side of the main-sequence turnoff. 11 of these variable stars…

Astrophysics · Physics 2009-11-07 Kaspar von Braun , Mario Mateo

We present a catalog of 150 variable stars, including 13 stars with exoplanet candidates. 37 stars were identified as variables for the first time. As a result of a 2.5-year photometric survey of exoplanets, we have obtained and analyzed…

Time series BVI photometry is presented for 16 short-period variables located in the central region of the globular cluster NGC 6397. The sample includes 9 newly detected variables. The light curve of cataclysmic variable CV6 shows…

Astrophysics · Physics 2016-08-30 Janusz Kaluzny , Ian B. Thompson

We performed R-band time series observations of the young, metal rich open cluster NGC 2301 for 12 nights in Feb. 2004. B images were also obtained and color magnitude diagrams, having limits of R=19.5 and B=21.5, were produced. Only asmall…

Studies of young stellar objects (YSOs) in the Galaxy have found that a significant fraction exhibit photometric variability. However, no systematic investigation has been conducted on the variability of extragalactic YSOs. Here we present…

We present the results of a photometric survey for variable stars in the central region of the nearby globular cluster NGC 6397.Time series photometry was obtained for 30 variable objects. The sample includes 12 new objects, of which 6 show…

Astrophysics · Physics 2009-11-13 J. Kaluzny , I. B. Thompson , W. Krzeminski

We have performed a careful investigation of the 74 candidate variable stars presented by Safanova & Stalin (2011). For this purpose we used our data base of imaging and light curves from Arellano Ferro et al. (2011) and Arellano Ferro et…

Solar and Stellar Astrophysics · Physics 2015-06-05 D. M. Bramich , A. Arellano Ferro , R. Figuera Jaimes , Sunetra Giridhar

Using the Southeastern Association for Research in Astronomy 0.6 meter telescope located at Cerro Tololo, we searched for variable stars in the southern globular cluster NGC 6584. We obtained images during 8 nights between 28 May and 6 July…

Solar and Stellar Astrophysics · Physics 2012-07-17 Joseph M. Toddy , Elliott W. Johnson , Andrew N. Darragh , Brian W. Murphy

We present the results of a photometric survey for variable stars in the field of the nearby globular cluster NGC 6752. The cluster was monitored in 1996 and 1997 for a total of 54 hours with 3 different CCD cameras mounted on the 1.0-m…

Astrophysics · Physics 2009-10-31 Ian B. Thompson , Janusz Kaluzny , Wojtek Pych , Wojtek Krzeminski

Gaia is undertaking a deep synoptic survey of the Galaxy, but photometry from individual epochs has, as of yet, only been released for a minimal number of sources. We show that it is possible to identify variable stars in Gaia Data Release…

Instrumentation and Methods for Astrophysics · Physics 2021-03-03 Shion Andrew , Samuel J. Swihart , Jay Strader

The Hipparcos catalog contains stars suspected to be {\delta} Scuti variables for which extensive ground-based observations and characterization of variability are necessary. Our aim was to characterize variability of 13 candidates to…

We present time series photometry in the field of Stock 8 and identified 130 short period variable stars. Twenty eight main-sequence and 23 pre-main-sequence variables are found to be part of cluster Stock 8. The main-sequence variables are…

Solar and Stellar Astrophysics · Physics 2019-07-24 Sneh Lata , Anil. K. Pandey , Ram Kesh Yadav , Andrea Richichi , Puji Irawati , Neelam Panwar , V. S. Dhillon , T. R. Marsh

This paper reports results from our long-term $BV(RI)_{c}$ photometric CCD observations of eight pre-main-sequence stars collected from June 2008 to October 2022. These stars are located in the young open cluster Trumpler 37, in the field…

Solar and Stellar Astrophysics · Physics 2023-07-26 Sunay Ibryamov , Gabriela Zidarova , Evgeni Semkov , Stoyanka Peneva

New B, V, I photometry was obtained for a sample of 152 variables (125 RR Lyrae's, 4 anomalous Cepheids, 11 classical Cepheids, 11 eclipsing binaries and a delta Scuti star) in two regions near the bar of the Large Magellanic Cloud (LMC).…

Astrophysics · Physics 2007-05-23 M. Maio , G. Clementini , A. Bragaglia , E. Carretta , R. Gratton , L. Di Fabrizio

We report an analysis of new $V$ and $I$ CCD time-series photometry of the globular cluster NGC 6934. Through the Fourier decomposition of the RR Lyrae light curves, the mean values of [Fe/H] and the distance of the cluster were estimated,…

Solar and Stellar Astrophysics · Physics 2017-09-04 M. A. Yepez , A. Arellano Ferro , S. Muneer , Sunetra Giridhar

We present results of multi-epoch (fourteen nights during 2007-2010) $V$-band photometry of the cluster NGC 1893 region to identify photometric variable stars in the cluster. The study identified a total of 53 stars showing photometric…

Solar and Stellar Astrophysics · Physics 2015-06-11 Sneh Lata , A. K. Pandey , W. P. Chen , G. Maheswar , Neelam Chauhan

Pulsating variables are prevalent in the classical {\delta} Scuti instability strip of intermediate-age open star clusters. The cluster membership of these stars facilitates a comparative analysis of their evolution in analogous…

The field of the globular cluster NGC 3201 was monitored between 1998 and 2009 in a search for variable stars. $BV$ light curves were obtained for 152 periodic or likely periodic variables, 57 of which are new detections. Thirty-seven newly…

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