Statistical Survey for the Physical Characteristic of Near Contact Binary(NCBs)
The absolute dimensions and orbital elements of 66 near contact binaries, collected from literatures, have been analyzed to investigate the physical characteristics of the near contact binaries as well as co-relations among physical parameters. The relationship between the mass ratio and luminosity...
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| Format: | Article |
| Language: | English |
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The Korean Space Science Society
2005-09-01
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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/2005/v22n3/OJOOBS_2005_v22n3_233.pdf |
| _version_ | 1827362393536069632 |
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| author | Kyu-Dong Oh |
| author_facet | Kyu-Dong Oh |
| author_sort | Kyu-Dong Oh |
| collection | DOAJ |
| description | The absolute dimensions and orbital elements of 66 near contact binaries, collected from literatures, have been analyzed to investigate the physical characteristics of the near contact binaries as well as co-relations among physical parameters. The relationship between the mass ratio and luminosity ratio of the near contact binary systems have been obtained as a L2/L1 ≈ (M2/M1)^1.45, which is similar to that of the early type contact binary system. The physical parameters of the near contact binaries show that the difference in mass, radius, luminosity and temperature between the primary and the secondary components for the F type NCBs are smaller than those for the A type NCBs. In H-R diagram, the components of the A types are located closer to the terminal age main sequence than those of the F types. |
| first_indexed | 2024-03-08T07:26:29Z |
| format | Article |
| id | doaj.art-adb0640c15ba4a85ba0de5f97576e9dd |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T07:26:29Z |
| publishDate | 2005-09-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-adb0640c15ba4a85ba0de5f97576e9dd2024-02-02T21:55:04ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092005-09-0122323324210.5140/JASS.2005.22.3.233Statistical Survey for the Physical Characteristic of Near Contact Binary(NCBs)Kyu-Dong Oh0Department of Earth Science Education, Chonnam National University, Kwangju 500-757, KoreaThe absolute dimensions and orbital elements of 66 near contact binaries, collected from literatures, have been analyzed to investigate the physical characteristics of the near contact binaries as well as co-relations among physical parameters. The relationship between the mass ratio and luminosity ratio of the near contact binary systems have been obtained as a L2/L1 ≈ (M2/M1)^1.45, which is similar to that of the early type contact binary system. The physical parameters of the near contact binaries show that the difference in mass, radius, luminosity and temperature between the primary and the secondary components for the F type NCBs are smaller than those for the A type NCBs. In H-R diagram, the components of the A types are located closer to the terminal age main sequence than those of the F types.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2005/v22n3/OJOOBS_2005_v22n3_233.pdfbinary starnear contact binaryH-R diagram of near contact binary |
| spellingShingle | Kyu-Dong Oh Statistical Survey for the Physical Characteristic of Near Contact Binary(NCBs) Journal of Astronomy and Space Sciences binary star near contact binary H-R diagram of near contact binary |
| title | Statistical Survey for the Physical Characteristic of Near Contact Binary(NCBs) |
| title_full | Statistical Survey for the Physical Characteristic of Near Contact Binary(NCBs) |
| title_fullStr | Statistical Survey for the Physical Characteristic of Near Contact Binary(NCBs) |
| title_full_unstemmed | Statistical Survey for the Physical Characteristic of Near Contact Binary(NCBs) |
| title_short | Statistical Survey for the Physical Characteristic of Near Contact Binary(NCBs) |
| title_sort | statistical survey for the physical characteristic of near contact binary ncbs |
| topic | binary star near contact binary H-R diagram of near contact binary |
| url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2005/v22n3/OJOOBS_2005_v22n3_233.pdf |
| work_keys_str_mv | AT kyudongoh statisticalsurveyforthephysicalcharacteristicofnearcontactbinaryncbs |