Metallicities of Globular Clusters m3 and m5 from VI CCD Photometry

To derive the metallicities of M3 and M5, we used the shape of red giant branch, horizontal branch magnitude, and red giant branch bump on the (V - I) - V color magnitude diagrams. [Fe/H] values ranging -1.46 -1.69 for M3, and -1.00 -1.49 for M5 are estimated. This result leads the morpholgies of re...

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Bibliographic Details
Main Authors: Young-Jong Sohn, Hyun-Chul Lee
Format: Article
Language:English
Published: The Korean Space Science Society 2000-06-01
Series:Journal of Astronomy and Space Sciences
Subjects:
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2000/v17n1/OJOOBS_2000_v17n1_1.pdf
Description
Summary:To derive the metallicities of M3 and M5, we used the shape of red giant branch, horizontal branch magnitude, and red giant branch bump on the (V - I) - V color magnitude diagrams. [Fe/H] values ranging -1.46 -1.69 for M3, and -1.00 -1.49 for M5 are estimated. This result leads the morpholgies of red giant and horizontal branches on the (V-I) - v color magnitude diagrams can be good indirect metallicity indicators of galactic globular clusters.
ISSN:2093-5587
2093-1409