RED GIANT BRANCH OF THE METAL POOR GLOBULAR CLUSTERS: II. BUMP, TIP, AND DISTANCE OF NGC 1904
From the BV images of the metal-poor globular cluster NGC 1904 obtained with the 2K CCD camera equipped on the BOAO 1.8m telescope, we construct (B - V, V) color-magnitude diagram of the cluster. The apparent V magnitudes of the RGB bump and tip have been measured from the luminosity function of the...
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| Format: | Article |
| Language: | English |
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The Korean Space Science Society
2006-06-01
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| Series: | Journal of Astronomy and Space Sciences |
| Subjects: | |
| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2006/v23n2/OJOOBS_2006_v23n2_97.pdf |
| _version_ | 1827393180923854848 |
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| author | J.W. Kim Y. Choi S. H. Chun J. Jung A. Kang Y.-J. Sohn |
| author_facet | J.W. Kim Y. Choi S. H. Chun J. Jung A. Kang Y.-J. Sohn |
| author_sort | J.W. Kim |
| collection | DOAJ |
| description | From the BV images of the metal-poor globular cluster NGC 1904 obtained with the 2K CCD camera equipped on the BOAO 1.8m telescope, we construct (B - V, V) color-magnitude diagram of the cluster. The apparent V magnitudes of the RGB bump and tip have been measured from the luminosity function of the iteratively selected RGB stars in NGC 1904. Theoretical absolute Mv magnitudes of the RGB bump and tip are estimated using the Yonsei-Yale isochrones. The distance modulus of NGC 1904 has been derived by comparing the observed apparent V magnitude with the estimated absolute Mv magnitude of the RGB bump and tip. |
| first_indexed | 2024-03-08T17:44:26Z |
| format | Article |
| id | doaj.art-f90a00c6f01c43b8b9e5aafab49ab116 |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T17:44:26Z |
| publishDate | 2006-06-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-f90a00c6f01c43b8b9e5aafab49ab1162024-01-02T10:42:23ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092006-06-012329710410.5140/JASS.2006.23.2.097RED GIANT BRANCH OF THE METAL POOR GLOBULAR CLUSTERS: II. BUMP, TIP, AND DISTANCE OF NGC 1904J.W. Kim0Y. Choi1S. H. Chun2J. Jung3A. Kang4Y.-J. Sohn5Department of Astronomy, Yonsei University, Seoul 120-749, KoreaDepartment of Astronomy, Yonsei University, Seoul 120-749, KoreaDepartment of Astronomy, Yonsei University, Seoul 120-749, KoreaDepartment of Astronomy, Yonsei University, Seoul 120-749, KoreaDepartment of Astronomy, Yonsei University, Seoul 120-749, KoreaDepartment of Astronomy, Yonsei University, Seoul 120-749, KoreaFrom the BV images of the metal-poor globular cluster NGC 1904 obtained with the 2K CCD camera equipped on the BOAO 1.8m telescope, we construct (B - V, V) color-magnitude diagram of the cluster. The apparent V magnitudes of the RGB bump and tip have been measured from the luminosity function of the iteratively selected RGB stars in NGC 1904. Theoretical absolute Mv magnitudes of the RGB bump and tip are estimated using the Yonsei-Yale isochrones. The distance modulus of NGC 1904 has been derived by comparing the observed apparent V magnitude with the estimated absolute Mv magnitude of the RGB bump and tip.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2006/v23n2/OJOOBS_2006_v23n2_97.pdfRGB bumpRGB tipdistanceNGC 1904photometry |
| spellingShingle | J.W. Kim Y. Choi S. H. Chun J. Jung A. Kang Y.-J. Sohn RED GIANT BRANCH OF THE METAL POOR GLOBULAR CLUSTERS: II. BUMP, TIP, AND DISTANCE OF NGC 1904 Journal of Astronomy and Space Sciences RGB bump RGB tip distance NGC 1904 photometry |
| title | RED GIANT BRANCH OF THE METAL POOR GLOBULAR CLUSTERS: II. BUMP, TIP, AND DISTANCE OF NGC 1904 |
| title_full | RED GIANT BRANCH OF THE METAL POOR GLOBULAR CLUSTERS: II. BUMP, TIP, AND DISTANCE OF NGC 1904 |
| title_fullStr | RED GIANT BRANCH OF THE METAL POOR GLOBULAR CLUSTERS: II. BUMP, TIP, AND DISTANCE OF NGC 1904 |
| title_full_unstemmed | RED GIANT BRANCH OF THE METAL POOR GLOBULAR CLUSTERS: II. BUMP, TIP, AND DISTANCE OF NGC 1904 |
| title_short | RED GIANT BRANCH OF THE METAL POOR GLOBULAR CLUSTERS: II. BUMP, TIP, AND DISTANCE OF NGC 1904 |
| title_sort | red giant branch of the metal poor globular clusters ii bump tip and distance of ngc 1904 |
| topic | RGB bump RGB tip distance NGC 1904 photometry |
| url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2006/v23n2/OJOOBS_2006_v23n2_97.pdf |
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