Photometry of eclipsing binary stars in the large and small Magellanic Clouds

被引:0
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作者
Bayne, GP [1 ]
Tobin, W [1 ]
Pritchard, JD [1 ]
Bond, I [1 ]
Pollard, KR [1 ]
Besier, SC [1 ]
Noda, S [1 ]
Sumi, T [1 ]
Yanagisawa, T [1 ]
Sekiguchi, M [1 ]
Honda, M [1 ]
Muraki, Y [1 ]
Takeuti, M [1 ]
Hearnshaw, JB [1 ]
Kilmartin, PM [1 ]
Dodd, RJ [1 ]
Sullivan, DJ [1 ]
Yock, PCM [1 ]
机构
[1] Univ Canterbury, Dept Phys & Astron, Christchurch 1, New Zealand
关键词
binaries : eclipsing; stars : early-type; stars : fundamental parameters; stars; individual; (MACHO*05; 36; 48.7-69; 17; 00; MOA J005018.4-723855; MOA J005623.5-722123);
D O I
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The light curves for three eclipsing binaries in the Magellanic Clouds have been obtained using CCD uV(J)T(C) photometry. One target in the LMC, MACHO*05:36:48.7 - 69:17:00, is an eccentric system, e = 0.20, with a period of 3.-853534 +/- 0.000005 d. Initial solutions indicate a primary component in the range T-eff,T-1 = 20,000 - 35,000 K and the secondary T-eff,T-2 1000 - 2000 K cooler than the primary, with inclinations ranging i = 84.2degrees - 86.0degrees. Two targets in the SMC, MOA J005018.4 - 723855 and MOA J005623.5 - 722123, have periods of 1.8399 +/- 0.0004 and 2.3199 +/- 0.0003 days respectively. Both have circular orbits with the former being a semi-detached system.
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页码:116 / 120
页数:5
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