First Detection of CS Masers around a High-mass Young Stellar Object, W51 e2e

被引：4
|
作者：
Ginsburg, Adam [1 ,2 ]
Goddi, Ciriaco [3 ,4 ]
机构：
[1] Univ Florida, Dept Astron, POB 112055, Gainesville, FL 32611 USA
[2] Natl Radio Astron Observ, Socorro, NM 87801 USA
[3] Leiden Univ, Leiden Observ, ALLEGRO, POB 9513, NL-2300 RA Leiden, Netherlands
[4] Radboud Univ Nijmegen, IMAPP, Dept Astrophys, POB 9010, NL-6500 GL Nijmegen, Netherlands
来源：
ASTRONOMICAL JOURNAL | 2019年 / 158卷 / 05期
关键词：
OH MASERS; AU; EMISSION; LINE;
D O I：
10.3847/1538-3881/ab4790
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the discovery of maser emission in the two lowest rotational transitions of CS toward the high-mass protostar W51 e2e with the Atacama Large Millimeter/submillimeter Array and the Jansky Very Large Array. The masers from CS J.=.1-0 and J.=.2-1 are neither spatially nor spectrally coincident (they are separated by similar to 150 au and similar to 30 km s(-1)), but both appear to come from the base of the blueshifted outflow from this source. These CS masers join a growing list of rarely detected maser transitions that may trace a unique phase in the formation of high-mass protostars.
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页数：6
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