| OH／IR星的绝对K星等与距离 |
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| 引用本文： | 熊关柱,陈培生.OH／IR星的绝对K星等与距离[J].天文研究与技术,1995(3). |
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| 作者姓名： | 熊关柱 陈培生 |
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| 作者单位： | 中国科学院云南天文台 |
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| 基金项目： | 云南省应用基础研究基金 |
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| 摘 要： | 本文计算了一批ＯＨ／ＩＲ星的绝对Ｋ星等Ｍｋ，对ＯＨ／ＩＲ星的Ｍｋ和距离ｄ作了讨论。发现当Ｋ较亮时，Ｍｋ为一常数；当Ｋ较暗时，Ｍｋ较离散且呈现一定的变化趋势。本文还拟合得到了一个由Ｋ星等求距离的经验公式，并由此公式计算了一批ＯＨ／ＩＲ星的距离。最后，对所得结果进行了解释和讨论。
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| 关 键 词： | OH／IR星，绝对K星等，距离 |
The Absolute K Magnitude and the Distance of OH / IR Stars |
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| Xiong Guanzhu, Chen Peisheng.The Absolute K Magnitude and the Distance of OH / IR Stars[J].Astronomical Research & Technology,1995(3). |
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| Authors: | Xiong Guanzhu Chen Peisheng |
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| Abstract: | The absolute K magnitudes and the distances of some OH / IR stars are calculated and discussed in this paper. It is found that the absolute K magnitude is almost constant for the OH / IR stars with the bright apparent K magnitude (K < 4.0), but the absolute K magnitude is dispersed and dimmer for the OH / IR stars with K> 4.0. The dimmer and dispersed absolute K magnitudes may be caused by the thicker circumstaller dust shells of these stars. The relation between the apparent K magnitude and the distance for the OH / IR stars with K < 4.0 is also given, so that the distances of the OH / IR stars with K < 4.0 can be estimated form the apparent K magnitude, and the problem of the correction of interstallar reddening of these stars is also solved. |
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| Keywords: | OH / IR stars Absolute K magnitude Distance |
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