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Browsing by Author "Tian, Wenwu"
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Massive outflows associated with ATLASGAL clumps
Yang, Aiyuan; Thompson, Mark; Urquhart, James; Tian, Wenwu (2018-03-01)We have undertaken the largest survey for outflows within the Galactic plane using simultaneously observed 13COand C18O data. Out of a total of 919 ATLASGAL clumps, 325 have data suitable to identify outflows, and 225(69% ... -
A population of hypercompact HII regions identified from young HII regions
Yang, Aiyuan; Urquhart, James; Thompson, Mark; Menten, Karl; Wyrowski, Friedrich; Brunthaler, Andreas; Tian, Wenwu; Rugel, Michael; Yang, Xiaolong; Yao, Su; Mutale, Mubela (2021-01-22)Context. The derived physical parameters for young H II regions are normally determined assuming the emission region to be optically thin. However, this assumption is unlikely to hold for young H II regions such as ...