REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE

Observations of times of minimum lights of the eclipsing binary V65l Cas were carried out on the three nights from November 21-23, 2000. From our observations a total of seven new times of minimum lights was obtained. Through the analysis of photoelectric and CCD times of minima of V65l Cas includin...

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Main Authors: Chun-Hwey Kim, Jae Woo Lee, Chung Uk Lee, Dong Ju Lee, Young Woon Kang
Format: Article
Language:English
Published: The Korean Space Science Society 2002-03-01
Series:Journal of Astronomy and Space Sciences
Subjects:
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2002/v19n1/OJOOBS_2002_v19n1_47.pdf
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author Chun-Hwey Kim
Jae Woo Lee
Chung Uk Lee
Dong Ju Lee
Young Woon Kang
author_facet Chun-Hwey Kim
Jae Woo Lee
Chung Uk Lee
Dong Ju Lee
Young Woon Kang
author_sort Chun-Hwey Kim
collection DOAJ
description Observations of times of minimum lights of the eclipsing binary V65l Cas were carried out on the three nights from November 21-23, 2000. From our observations a total of seven new times of minimum lights was obtained. Through the analysis of photoelectric and CCD times of minima of V65l Cas including ours, the light time orbit due to a third body, which was propose by Kim & Lee (2000), was confirmed and improved. The resultant values for the period, semi-amplitude, and eccentricity of the light-time orbit were 6.y3, 0.d0013, and 0.78, respectively. The deduced marts range of the third body is. If the third body is 0.09 M⨀ ≤ M3 ≤ 0.20 M⨀ foor i3 ≥ 30˚. If the third body suggested in V65l Cas system exists really and is a main-sequence star, it is located at the end of the main-sequence.
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spelling doaj.art-dfa39d4fda6e473d98a3b64504cd61472024-01-02T12:03:54ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092002-03-01191475610.5140/JASS.2002.19.1.047REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAEChun-Hwey Kim0Jae Woo Lee1Chung Uk Lee2Dong Ju Lee3Young Woon Kang4Department of Astronomy and Space Science, Chungbuk National UniversityDepartment of Astronomy and Space Science, Chungbuk National UniversityDepartment of Astronomy and Space Science, Chungbuk National UniversityDepartment of Astronomy and Space Science, Chungbuk National UniversityDepartment of Geoinformation Sciences, Sejong UniversityObservations of times of minimum lights of the eclipsing binary V65l Cas were carried out on the three nights from November 21-23, 2000. From our observations a total of seven new times of minimum lights was obtained. Through the analysis of photoelectric and CCD times of minima of V65l Cas including ours, the light time orbit due to a third body, which was propose by Kim & Lee (2000), was confirmed and improved. The resultant values for the period, semi-amplitude, and eccentricity of the light-time orbit were 6.y3, 0.d0013, and 0.78, respectively. The deduced marts range of the third body is. If the third body is 0.09 M⨀ ≤ M3 ≤ 0.20 M⨀ foor i3 ≥ 30˚. If the third body suggested in V65l Cas system exists really and is a main-sequence star, it is located at the end of the main-sequence.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2002/v19n1/OJOOBS_2002_v19n1_47.pdfV65l Caslperiod variationthird body
spellingShingle Chun-Hwey Kim
Jae Woo Lee
Chung Uk Lee
Dong Ju Lee
Young Woon Kang
REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE
Journal of Astronomy and Space Sciences
V65l Casl
period variation
third body
title REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE
title_full REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE
title_fullStr REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE
title_full_unstemmed REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE
title_short REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE
title_sort rediscussion of per100 change of the close binary v65l cassiopeiae
topic V65l Casl
period variation
third body
url http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2002/v19n1/OJOOBS_2002_v19n1_47.pdf
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