Observations of Stellar Maser Sources with No IRAS Counterpart
Observations of Stellar Maser Sources with No IRAS Counterpart
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DOI：
10.1093/pasj/57.6.933
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发表时间：
2005-11
影响因子：
2.3
通讯作者：
S. Deguchi;J. Nakashima;T. Miyata;Y. Ita
中科院分区：
文献类型：
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作者：
S. Deguchi;J. Nakashima;T. Miyata;Y. Ita
我们研究了射电、中红外和近红外波段没有对应IRAS的恒星脉泽源。43 GHz的SiO脉泽探测了120个2MASS/MSX天体，以及10个没有或非常微弱的MSX源的OH1612 MHz源，结果发现了43个SIO：1个OH1612 MHz源，2颗近红外星和40个MSX源。对OH1612 MHz源的另外的近红外J、H和K波段观测发现了5个近红外对应物。此外，使用斯巴鲁8.2-m望远镜在8.8、9.7、12.4和24.5微米进行的中红外成像观测发现，对应于2颗带有SiO脉泽的近红外恒星，以及对应于6个OH 1612 MHz源。然而，在灵敏的近红外和中红外搜索中没有探测到4个OH 1612 MHz源；其中3个是相对较强的OH脉泽源，其位置得到了准确的了解。我们得出结论，其中之一(OH 028.286−01.801)肯定是恒星形成区的一个年轻天体。
We investigated stellar maser sources with no IRAS counterpart at the radio, middle-infrared, and near-infrared wavelengths. A 43GHz SiO maser search for 120 2MASS/MSX objects, and 10 OH 1612MHz sources with no or a very faint MSX counterpart, resulted in 43 SiO detections: one OH 1612MHz source, 2 near-infrared stars, and 40 MSX sources. Additional near-infrared J-, H-, and K-band observations of the OH 1612MHz sources detected 5 near-infrared counterparts. Furthermore, middle-infrared imaging observations at 8.8, 9.7, 12.4, and 24.5 µm with the Subaru 8.2-m telescope found counterparts for 2 near-infrared stars with SiO masers, and counterparts for 6 OH 1612MHz sources. However, 4 OH 1612MHz sources were not detected in the sensitive near- and middle-infrared searches; three of these are relatively strong OH maser sources for which the positions were known accurately. We conclude that one of these (OH 028.286−01.801) must be a young object in a star-forming region.