IRAS04000+5052:一个与HII区成协的近红外变源  

IRAS 04000+5052: a Near-Infrared Variable Associated with HII Region

作　　者：王俊杰[1,2] 钱忠钰[1,2] 胡景耀[1,2] 姜碧沩[1,2] 王钢[1,2] 

机构地区：[1]中国科学院北京天文台,北京100080 [2]中国科学院光学天文联合开放实验室

出　　处：《天体物理学报》1992年第4期385-388,共4页

基　　金：国家自然科学基金

摘　　要：IRAS04000+5052的光学对应体在POSS的E片上是一个展源.我们利用北京天文台2.16m望远镜加红敏CCD系统对此源进行了VRI波段的观测,发现其R波段图像有明显的延伸,且辐射远强于Ⅴ、Ⅰ波段.用北台1.26m红外望远镜对此源的红外监测结果表明它有较大的近红外光变.根据IRAS流量值和LRS谱,以及其形态特征,我们判断它可能是一个被HII区所包围着的正在形成恒星的年轻天体.Using 2.16m telescope with CCD system at Xinglong Station, Beijing Astronomical Observatory, IRAS 04000+5052 has been observed at VRI bands respectively. The R-filter image of the source shows very distinct extension feature. Radiation of the source at R band is much stronger than that at V and I bands. By using the 1.26m infrared telescope, a large variation at near infrared bands was also found. From the IRAS fluxes and LRS spectrum, as well as the morphology of the source, we conclude that k may possibly be a young object in the process forming new

关 键 词：恒星 变星 HII区 

分 类 号：P155.21[天文地球—天文学]