Metallicity of Globular Cluster M13 from VI CCD Photometry
From the VI images of M13, obtained by using 2K CCD camera and the BOAO 1.8m telescope, we derive the (V-I)-V CMD of M13. From the shapes of red giant branch, the magnitude of horizontal branch, and the giant branch bump on the constructed CMD, we determined the metallicity of the globular cluster t...
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| Format: | Article |
| Language: | English |
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The Korean Space Science Society
2000-12-01
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| Series: | Journal of Astronomy and Space Sciences |
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| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2000/v17n2/OJOOBS_2000_v17n2_133.pdf |
| _version_ | 1827362251407884288 |
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| author | Young-Jong Sohn |
| author_facet | Young-Jong Sohn |
| author_sort | Young-Jong Sohn |
| collection | DOAJ |
| description | From the VI images of M13, obtained by using 2K CCD camera and the BOAO 1.8m telescope, we derive the (V-I)-V CMD of M13. From the shapes of red giant branch, the magnitude of horizontal branch, and the giant branch bump on the constructed CMD, we determined the metallicity of the globular cluster to be 1.74 ~<[Fe/H]~< -1.41. The good agreement between our determination of [Fe/H] and those determined by using other methods implies that the morphology of red giant and horizontal branches on (V-I)-V CMD's can be good indirect metallicity indicators of Galactic globular clusters. |
| first_indexed | 2024-03-08T07:23:21Z |
| format | Article |
| id | doaj.art-7a70b437a5224764acf1f8b98f0a3834 |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T07:23:21Z |
| publishDate | 2000-12-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-7a70b437a5224764acf1f8b98f0a38342024-02-02T22:32:41ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092000-12-01172133140Metallicity of Globular Cluster M13 from VI CCD PhotometryYoung-Jong Sohn0Center for Space Astrophysics, Yonsei University, Seoul 120-749, KoreaFrom the VI images of M13, obtained by using 2K CCD camera and the BOAO 1.8m telescope, we derive the (V-I)-V CMD of M13. From the shapes of red giant branch, the magnitude of horizontal branch, and the giant branch bump on the constructed CMD, we determined the metallicity of the globular cluster to be 1.74 ~<[Fe/H]~< -1.41. The good agreement between our determination of [Fe/H] and those determined by using other methods implies that the morphology of red giant and horizontal branches on (V-I)-V CMD's can be good indirect metallicity indicators of Galactic globular clusters.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2000/v17n2/OJOOBS_2000_v17n2_133.pdfGLOBULAS CLUSTERPHOTOMETRYMETALLICITYSPECTROSCOPYABSORPTION-LINEGALACTIC BULGE |
| spellingShingle | Young-Jong Sohn Metallicity of Globular Cluster M13 from VI CCD Photometry Journal of Astronomy and Space Sciences GLOBULAS CLUSTER PHOTOMETRY METALLICITY SPECTROSCOPY ABSORPTION-LINE GALACTIC BULGE |
| title | Metallicity of Globular Cluster M13 from VI CCD Photometry |
| title_full | Metallicity of Globular Cluster M13 from VI CCD Photometry |
| title_fullStr | Metallicity of Globular Cluster M13 from VI CCD Photometry |
| title_full_unstemmed | Metallicity of Globular Cluster M13 from VI CCD Photometry |
| title_short | Metallicity of Globular Cluster M13 from VI CCD Photometry |
| title_sort | metallicity of globular cluster m13 from vi ccd photometry |
| topic | GLOBULAS CLUSTER PHOTOMETRY METALLICITY SPECTROSCOPY ABSORPTION-LINE GALACTIC BULGE |
| url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2000/v17n2/OJOOBS_2000_v17n2_133.pdf |
| work_keys_str_mv | AT youngjongsohn metallicityofglobularclusterm13fromviccdphotometry |