20颗依巴谷碳星的近红外测光  

Near Infrared Photometry for 20 Hipparcos Carbon Stars

作　　者：陈培生[1] 杨孝鸿[1] 汪洵浩[1] 

机构地区：[1]中国科学院国家天文台云南天文台

出　　处：《天文学报》2003年第2期110-115,共6页Acta Astronomica Sinica

基　　金：国家自然科学基金(项目编号:10073018)

摘　　要：对20颗依巴谷(Hipparcos)卫星所观测的碳星作了近红外JHK测光。由近红外观测结果估算了其在K波段的热改正BC_K和视热星等m_(bol)以及有效温度T_e。结合依巴谷卫星所得视差,得到其中一些星的绝对热星等M_(bol)。The near infrared photometry in the JHK bands is made for 20 Hipparcos carbon stars. Prom the results of the near infrared photometry, the bolometric corrections in the K band, the apparent bolometric magnitudes and the effective temperatures can be estimated. Combined with the trigonometric parallaxes observed with the Hipparcos satellite, the absolute bolometric magnitudes for some of the observed carbon stars can also be obtained.

关 键 词：碳星 近红外JHK测光 恒星 有效温度 

分 类 号：P144[天文地球—天体物理]