Journal
JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY
Volume 46, Issue 3, Pages 103-123Publisher
KOREAN ASTRONOMICAL SOCIETY
DOI: 10.5303/JKAS.2013.46.3.103
Keywords
open clusters and associations: general; Stars: Color-Magnitude diagrams; methods: data analysis; techniques: photometry
Categories
Funding
- National Research Foundation of Korea (NRF)
- Korea Government (MEST) [20120005318]
- National Research Foundation of Korea [2011-0014136] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Star clusters are superb astrophysical laboratories containing cospatial and coeval samples of stars with similar chemical composition. We initiate the Sejong Open cluster Survey (SOS) - a project dedicated to providing homogeneous photometry of a large number of open clusters in the SAAO Johnson-Cousins' UBVI system. To achieve our main goal, we pay much attention to the observation of standard stars in order to reproduce the SAAO standard system. Many of our targets are relatively small sparse clusters that escaped previous observations. As clusters are considered building blocks of the Galactic disk, their physical properties such as the initial mass function, the pattern of mass segregation, etc. give valuable information an the formation and evolution of the Galactic disk. The spatial distribution of young open clusters will be used to revise the local spiral arm structure of the Galaxy. In addition, the homogeneous data can also be used to test stellar evolutionary theory, especially concerning rare massive stars. In this paper we present the target selection criteria, the observational strategy for accurate photometry, and the adopted calibrations for data analysis such as color-color relations, zero-age main sequence relations, Sp - M-V relations, Sp - T-eff relations, Sp - color relations, and T-eff - BC relations. Finally we provide some data analysis such as the determination of the reddening law, the membership selection criteria, and distance determination.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available