The dust-to-gas and dust-to-metal ratio in galaxies from z = 0 to 6
The dust-to-gas and dust-to-metal ratio in galaxies from z = 0 to 6
复制标题
z = 0 到 6 的星系中尘埃与气体以及尘埃与金属的比率
DOI:
10.1093/mnras/stz2684
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发表时间:
2019
影响因子:
4.8
通讯作者:
Davé, Romeel
中科院分区:
文献类型:
--
作者:
Li, Qi;Narayanan, Desika;Davé, Romeel
We present predictions for the evolution of the galaxy dust-to-gas ratio (DGR) and dust-to-metal ratio (DTM) fromz= 0 → 6, using a model for the production, growth, and destruction of dust grains implemented into thesimbacosmological hydrodynamic galaxy formation simulation. In our model, dust forms in stellar ejecta, grows by the accretion of metals, and is destroyed by thermal sputtering and supernovae. Our simulation reproduces the observed dust mass function atz= 0, but modestly underpredicts the mass function by ∼×3 atz∼ 1–2. Thez= 0 DGR versus metallicity relationship shows a tight positive correlation for star-forming galaxies, while it is uncorrelated for quenched systems. There is little evolution in the DGR–metallicity relationship betweenz= 0 and 6. We use machine learning techniques to search for the galaxy physical properties that best correlate with the DGR and DTM. We find that the DGR is primarily correlated with the gas-phase metallicity, though correlations with the depletion time-scale, stellar mass, and gas fraction are non-negligible. We provide a crude fitting relationship for DGR and DTM versus the gas-phase metallicity, along with a public code package that estimates the DGR and DTM given a set of galaxy physical properties.
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DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
H. Hirashita
通讯作者:
H. Hirashita
DOI:
10.1086/165403
发表时间:
1987-07
期刊:
The Astrophysical Journal
影响因子:
--
作者:
C. McKee;D. Hollenbach;Gregory C. Seab;A. Tielens
通讯作者:
C. McKee;D. Hollenbach;Gregory C. Seab;A. Tielens
影响因子:
4.9
作者:
Dwek, Eli
通讯作者:
Dwek, Eli
影响因子:
4.8
作者:
M. Clemens;M. Negrello;G. Zotti;J. González-Nuevo;L. Bonavera;G. Cosco;G. Guarese;L. Boaretto;P. Salucci;C. Baccigalupi;D. Clements;L. Danese;A. Lapi;N. Mandolesi;N. Mandolesi;R. B. Partridge;F. Perrotta;S. Serjeant;D. Scott;L. Toffolatti
通讯作者:
M. Clemens;M. Negrello;G. Zotti;J. González-Nuevo;L. Bonavera;G. Cosco;G. Guarese;L. Boaretto;P. Salucci;C. Baccigalupi;D. Clements;L. Danese;A. Lapi;N. Mandolesi;N. Mandolesi;R. B. Partridge;F. Perrotta;S. Serjeant;D. Scott;L. Toffolatti
影响因子:
4.8
作者:
McKinnon, Ryan;Vogelsberger, Mark;Torrey, Paul;Marinacci, Federico;Kannan, Rahul
通讯作者:
Kannan, Rahul