Browse > Article
http://dx.doi.org/10.5303/PKAS.2008.23.2.017

VARIABLE STARS IN THE REGION OF AN OPEN CLUSTER M50  

Jeon, Young-Beom (Korea Astronomy and Space Science Institute)
Publication Information
Publications of The Korean Astronomical Society / v.23, no.2, 2008 , pp. 17-23 More about this Journal
Abstract
From the short-period variability survey (SPVS), we obtained time-series BV CCD images in the region of an open cluster M50 (NGC 2323) for 10 nights from 2008 February 9 to 27. The observation was performed using a small refracting telescope (${\phi}$=155mm, f=1050mm) in Bohyunsan Optical Astronomy Observatory (BOAO). M50 is included in the observing field of ASAS (The All Sky Automated Survey). In the region of M50, we found 8 new variable stars including two ${\delta}$ Scuti stars with short-periods and very small amplitudes. There are known nine variable stars by the catalogues of ASAS and GCVS in the region. We confirmed the variability of the known variable stars for six and non-variability for three.
Keywords
clusters:-M50; NGC 2323; stars: variables-${\delta}$ Scuti; Eclipsing binaries;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
1 Jeon, Y.-B., Nam, K.-H., Park, Y.-H., et al., 2004b, A New Field $\delta$ Scuti Star : GSC 03665-00576, PKAS, 19, 33
2 Sung, H. & Bessell, M. S., 1999, UBVI CCD photometry of M35 (NGC 2168), MNRAS, 306, 361-370   DOI
3 Jeon, Y.-B., Nam, K.-H., Park, Y.-H., et al., 2007, Preliminary Results for Short-Period Variability Survey (SPVS): New Field Variable Stars, PKAS, 22, 141   과학기술학회마을   DOI   ScienceOn
4 Jin, H., Kim, S.-L., Lee, C.-U., Lee, D.J., & Kim, K.- S., 2004, Reclassification of ROTSE-I $\delta$ Scuti type stars with Multiband photometry and Fourier Decomposition, AJ, 128, 1847   DOI   ScienceOn
5 Stetson, P. B., 1987, DAOPHOT - A computer program for crowded-field stellar photometry, PASP, 99, 191   DOI
6 Claria, J. J., Piatti, A. E., & Lapasset, E., 1998, Photometric study of the open cluster NGC 2323, A&Ap Suppl., 127, 2436
7 Jeon, Y.-B., Kim, S.-L., Park, Y.-H., et al., 2005a, Short-Period Variability Survey (SPVS) in BOAO, PKAS, 20, 21
8 Jeon, Y.-B., Nam, K.-H., Kim, S.-L., et al., 2004a, A New Field $\delta$ Scuti Star : HD 235428, PKAS, 19, 27
9 Breger, M., Stich, J., Garrido, R., et al., 1993, Nonradial Pulsation of the Delta-Scuti Star Bu-Cancri in the Praesepe Cluster, A&Ap, 271, 482
10 Breger, M., 1979, Delta Scuti & Related Stars, PASP, 91, 5   DOI
11 Jeon, Y.-B., Park, Y.-H., Nam, K.-H., et al., 2005b, New Variable Stars around the Cepheid Variable TU Cas, PKAS, 20, 29
12 Samus, N. N., Durlevich, O. V., et al., 2004, Combined General Catalogue of Variable Stars (Samus+2004), VizieR Online Data Catalog, 2250
13 Rucinski, S. M., 2007, The short period end of the contact binary period distribution based on the All Sky Automated Survey (ASAS), MNRAS, 382, 393   DOI   ScienceOn
14 Pojmanski, G., Pilecki, B., & Szczygiel, D., 2005, The All Sky Automated Survey. The Catalog of Variable Stars. V. Declinations 0 deg - 28 deg of the Northern Hemisphere, Acta Astronomica, 55, 275
15 Lee, E.-J., Jeon, Y.-B., Lee, H., & Park, H.-S., 2007, A Search for New Variable Stars in the Open Cluster NGC 129 using a Small Telescop, JKAS, 28, 87   과학기술학회마을   DOI   ScienceOn
16 Massey, P. & Davis, L. E., 1992, A User's Guide to Stellar CCD photometry with IRAF
17 Kalirai, J. S., Fahlman, G. G., Richer, H. B., & Ventura, P., 2003, THE CFHT Open Star Cluster Survey. IV. Two Rich, Young Open Star Clusters: NGC 2168 (M35) and NGC 2323 (M50), AJ, 126, 1402   DOI   ScienceOn
18 Kim, S.-L. & Lee, S.-W., 1995, CCD Photometry of a Delta Scuti Star in an Open Cluster II. BT CNC in the Praesepe, JKAS, 28, 197