THE DISTANCE TO THE MASSIVE ECLIPSING BINARY LMC-SC1-105 IN THE LARGE MAGELLANIC CLOUD
THE DISTANCE TO THE MASSIVE ECLIPSING BINARY LMC-SC1-105 IN THE LARGE MAGELLANIC CLOUD
复制标题
大麦哲伦云中大质量食双星 LMC-SC1-105 的距离
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
R. Kudritzki
中科院分区：
文献类型：
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作者：
A. Bonanos;N. Castro;L. Macri;R. Kudritzki
这封信介绍了第一次对大质量、半分离、日食双星LMC-SC1-105的距离测量，该双星位于大麦哲伦星云(LMC)的LH81组合中。将先前确定的系统参数与新的近红外光度和新的温度分析相结合，以限制系统的发红，并确定距离为50.6±1.6kpc(对应的距离系数为18.52±0.07 mag)，与先前的日食双星测量结果一致。虽然这是LMC中第六次测量食双星的距离，但它是第一次测量O型系统。因此，我们论证了O型食双星(EBS)作为距离指示器的适用性。我们建议使用明亮的早期类型的EBS来测量沿不同视线的距离，作为绘制LMC深度的一种独立方式，并解决关于其三维结构的争议。
This Letter presents the first distance measurement to the massive, semi-detached, eclipsing binary LMC-SC1-105, located in the LH 81 association of the Large Magellanic Cloud (LMC). Previously determined parameters of the system are combined with new near-infrared photometry and a new temperature analysis to constrain the reddening toward the system, and determine a distance of 50.6 ± 1.6 kpc (corresponding to a distance modulus of 18.52 ± 0.07 mag), in agreement with previous eclipsing binary measurements. Although this is the sixth distance measurement to an eclipsing binary in the LMC, it is the first to an O-type system. We thus demonstrate the suitability of O-type eclipsing binaries (EBs) as distance indicators. We suggest using bright, early-type EBs to measure distances along different sight lines, as an independent way to map the depth of the LMC and resolve the controversy about its three-dimensional structure.
DOI：
10.1088/0004-6256/136/3/919
发表时间：
2005-06
期刊：
The Astronomical Journal
影响因子：
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作者：
M. Meixner;K. Gordon;R. Indebetouw;J. Hora;B. Whitney;R. Blum;W. Reach;J. Bernard;M. Meade;B. Babler;C. Engelbracht;B. For;K. Misselt;U. Vijh;C. Leitherer;M. Cohen;E. Churchwell;F. Boulanger;J. Frogel;Y. Fukui;J. Gallagher;V. Gorjian;J. Harris;D. Kelly;A. Kawamura;Soyoung Kim;W. Latter;S. Madden;Ciska Markwick-Kemper;A. Mizuno;N. Mizuno;J. Mould;A. Nota;M. Oey;K. Olsen;T. Onishi;R. Paladini;N. Panagia;P. Pérez-González;H. Shibai;Sato Shuji;Linda J. Smith;L. Staveley-Smith;A. Tielens;T. Ueta;S. V. Dyk;K. Volk;M. Werner;D. Zaritsky
通讯作者：
M. Meixner;K. Gordon;R. Indebetouw;J. Hora;B. Whitney;R. Blum;W. Reach;J. Bernard;M. Meade;B. Babler;C. Engelbracht;B. For;K. Misselt;U. Vijh;C. Leitherer;M. Cohen;E. Churchwell;F. Boulanger;J. Frogel;Y. Fukui;J. Gallagher;V. Gorjian;J. Harris;D. Kelly;A. Kawamura;Soyoung Kim;W. Latter;S. Madden;Ciska Markwick-Kemper;A. Mizuno;N. Mizuno;J. Mould;A. Nota;M. Oey;K. Olsen;T. Onishi;R. Paladini;N. Panagia;P. Pérez-González;H. Shibai;Sato Shuji;Linda J. Smith;L. Staveley-Smith;A. Tielens;T. Ueta;S. V. Dyk;K. Volk;M. Werner;D. Zaritsky