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제목 :  The gas cycle of galaxies across environments

연사 :  Barbara Catinella 박사님 (ICRAR, Australia)

언어 :  English


요약

     While it has become increasingly clear that there is a strong connection between galaxies and their environment, we are still struggling to understand to what extent nurture shapes galaxy evolution, and which are the dominant physical mechanisms involved. Studies of the cold hydrogen gas in and around galaxies hold the key to reveal the nature and extent of environmental effects, as demonstrated by HI surveys of galaxy clusters such as Virgo. However, what happens to the gas in the more common group environment is still unclear, due to the lack of large surveys deep enough to probe the gas-poor regime across all environments. In this talk, I will present results on this topic based on the deepest observations of cold gas in galaxies currently available, as well as of spectral stacking of the largest stellar mass-selected sample with HI data assembled to date.

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