Simulations of the star-forming molecular gas in an interacting M51-like galaxy
Simulations of the star-forming molecular gas in an interacting M51-like galaxy
复制标题
对相互作用的类 M51 星系中恒星形成分子气体的模拟
DOI:
10.1093/mnras/stz3600
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发表时间:
2020
影响因子:
4.8
通讯作者:
Clark, Paul C.
中科院分区:
文献类型:
--
作者:
Tress, Robin G.;Smith, Rowan J.;Sormani, Mattia C.;Glover, Simon C. O.;Klessen, Ralf S.;Mac Low, Mordecai-Mark;Clark, Paul C.
We present here the first of a series of papers aimed at better understanding the evolution and properties of giant molecular clouds (GMCs) in a galactic context. We perform high-resolution, three-dimensionalareposimulations of an interacting galaxy inspired by the well-observed M51 galaxy. Our fiducial simulations include a non-equilibrium, time-dependent, chemical network that follows the evolution of atomic and molecular hydrogen as well as carbon and oxygen self-consistently. Our calculations also treat gas self-gravity and subsequent star formation (described by sink particles), and coupled supernova feedback. In the densest parts of the simulated interstellar medium (ISM), we reach sub-parsec resolution, granting us the ability to resolve individual GMCs and their formation and destruction self-consistently throughout the galaxy. In this initial work, we focus on the general properties of the ISM with a particular focus on the cold star-forming gas. We discuss the role of the interaction with the companion galaxy in generating cold molecular gas and controlling stellar birth. We find that while the interaction drives large-scale gas flows and induces spiral arms in the galaxy, it is of secondary importance in determining gas fractions in the different ISM phases and the overall star formation rate. The behaviour of the gas on small GMC scales instead is mostly controlled by the self-regulating property of the ISM driven by coupled feedback.
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影响因子:
4.8
作者:
P. Clark;S. Glover;S. Ragan;A. Duarte-Cabral
通讯作者:
P. Clark;S. Glover;S. Ragan;A. Duarte-Cabral
影响因子:
4.8
作者:
Smith R
通讯作者:
Smith R
影响因子:
4.8
作者:
R. Shetty;P. Clark;R. Klessen
通讯作者:
R. Klessen
DOI:
10.3847/1538-4357/aaeb92
发表时间:
2018-10
期刊:
The Astrophysical Journal
影响因子:
--
作者:
H. Pan;Lihwai Lin;B. Hsieh;T. Xiao;Yang Gao;S. Ellison;J. Scudder;J. Barrera-Ballesteros;
通讯作者:
H. Pan;Lihwai Lin;B. Hsieh;T. Xiao;Yang Gao;S. Ellison;J. Scudder;J. Barrera-Ballesteros;
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
M. Krumholz;M. Bate;H. Arce;J. Dale;R. Gutermuth;R. Klein;Zhi;F. Nakamura;Qizhou Zhang
通讯作者:
Qizhou Zhang