Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-12-20
Astron.J. 127 (2004) 2210
Astronomy and Astrophysics
Astrophysics
32 pages, 8 figures. Complete, machine-readable versions of Tables 4-6 available at http://home.fnal.gov/~dtucker/OpenClusters
Scientific paper
10.1086/382238
We present initial results of a photometric survey of open star clusters, primarily in the southern hemisphere, taken in the u'g'r'i'z' filter system. While our entire observed sample covers more than 100 clusters, here we present data for NGC2548 (M48) which is a cluster characterized in the UBV and DDO photometric systems. We compare our results to the published values from other observers and to the Padova theoretical isochrones and metallicity curves. These observations demonstrate that the u'g'r'i'z' filters can play an important role in determining the metallicity of stars and clusters. We begin this series of papers with a study of NGC2548 because we have obtained data of this cluster not only with our main program telescope, the CTIO Curtis-Schmidt, but also with the US Naval Observatory (USNO) 1.0m telescope (the telescope used to define the u'g'r'i'z' system), and the Sloan Digital Sky Survey (SDSS) 0.5m Photometric Telescope (the photometric monitoring telescope used to calibrate the SDSS 2.5m telescope imaging data). We have used the data from this study to validate our ability to transform measurements obtained on other telescopes to the standard USNO 1.0m u'g'r'i'z' system. This validation is particularly important for very red stars, for which the original u'g'r'i'z' standard star network is poorly constrained.
Allam Sahar S.
Neilsen Eric H.
Rider Cristin J.
Smith Anthony J.
Stoughton Chris
No associations
LandOfFree
A Survey of Open Clusters in the u'g'r'i'z' Filter System: I. Results for NGC2548 (M48) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Survey of Open Clusters in the u'g'r'i'z' Filter System: I. Results for NGC2548 (M48), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Survey of Open Clusters in the u'g'r'i'z' Filter System: I. Results for NGC2548 (M48) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-656517