Star formation near Sgr A* and the role of cosmic rays in galactic center molecular clouds

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https://hdl.handle.net/2142/59134

Title: Star formation near Sgr A* and the role of cosmic rays in galactic center molecular clouds
Author(s): Yusef-Zadeh, Farhad
Issue Date: 2014-06-17
Keyword(s): Mini-symposium: Astronomical Molecular Spectroscopy in the Age of ALMA
Abstract: I will present recent study of molecular line observations of the Galactic center. On a scale of 2pc from Sgr A*, I show signatures of protostellar outflows within 2pc of Sgr A* based on SiO (5-4), SiO (2-1) line data taken with ALMA, SMA and CARMA. On a larger scale, I discuss the origin of widespread SiO and methanol emission detected from Galactic center molecular clouds. A time-dependent chemical model in which cosmic rays drive the gas chemistry is discussed in order to account for high abundance of SiO and methanol and the high molecular gas temperature.
Publisher: International Symposium on Molecular Spectroscopy
Type of Resource: text
Language: en
Permalink: http://hdl.handle.net/2142/59134
DOI: https://doi.org/10.15278/isms.2014.TF10
Copyright and License Information: Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/