未证认的IRAS LRS源的光学证认和观测研究——1.北天O^h—12~h具有硅酸盐特征的源

Optical Identification and Observation of the Unidentified IRAS LRS Sources 1. Sources with Silicate Feature in the Region 0~h<α< 13~h,0°<δ < 66°

本文给出了IRAS LRS表中0°<δ<66°0~h<α<12~h的未被证认的2n、3n类源的光学证认图、近红外测光及近红外位置,并应用近红外和远红外双色图对观测结果进行了定性分析.结果表明:其中大部分源是AGB或RGB星,但还有几个特殊的源,我们分别对它们进行了讨论.

Unidentified 2n and 3n IRAS LRS sources in the region δ < 66°, 0h<α< 13h are studied. Their optical indentification charts and near-IR photometric results are present. According to the locations in the near-IR and far-!R diagrams and LRS characteristics and visibility in O and E POSS plates, we studied their evolutionary states. The results show that most of the sources are AGB or RGB strexcept the sources 00170 + 6542.02434 + 6018, 03201 + 5459,03206 + 6521,03313 + 6058,03513 + 1801,05533 + 30222, 06181+0406 and 06582 + 1507. We also discussed their classifications.