English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  L-GALAXIES 2020: Spatially resolved cold gas phases, star formation, and chemical enrichment in galactic discs

Henriques, B. M. B., Yates, R. M., Fu, J., Guo, Q., Kauffmann, G., Srisawat, C., et al. (2019). L-GALAXIES 2020: Spatially resolved cold gas phases, star formation, and chemical enrichment in galactic discs. Monthly Notices of the Royal Astronomical Society, 491(4), 5795-5814. doi:10.1093/mnras/stz3233.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0005-C4D2-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-C4D3-F
Genre: Journal Article

Files

show Files
hide Files
:
L-GALAXIES 2020 Spatially resolved cold gas phases, star formation, and chemical enrichment in galactic discs.pdf (Any fulltext), 3MB
 
File Permalink:
-
Name:
L-GALAXIES 2020 Spatially resolved cold gas phases, star formation, and chemical enrichment in galactic discs.pdf
Description:
-
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Henriques, Bruno M. B., Author
Yates, Robert M.1, Author              
Fu, Jian, Author
Guo, Qi, Author
Kauffmann, Guinevere1, Author              
Srisawat, Chaichalit, Author
Thomas, Peter A., Author
White, Simon D. M.2, Author              
Affiliations:
1Cosmology, MPI for Astrophysics, Max Planck Society, ou_159876              
2Computational Structure Formation, MPI for Astrophysics, Max Planck Society, ou_2205642              

Content

show
hide
Free keywords: -
 Abstract: We have updated the Munich galaxy formation model, L-galaxies, to follow the radial distributions of stars and atomic and molecular gas in galaxy discs. We include an H2-based star-formation law, as well as a detailed chemical-enrichment model with explicit mass-dependent delay times for SN-II, SN-Ia, and AGB stars. Information about the star formation, feedback, and chemical-enrichment histories of discs is stored in 12 concentric rings. The new model retains the success of its predecessor in reproducing the observed evolution of the galaxy population, in particular, stellar mass functions and passive fractions over the redshift range 0 ≤ z ≤ 3 and mass range 8≤log(M/M)≤12⁠, the black hole-bulge mass relation at z = 0, galaxy morphology as a function of stellar mass and the mass–metallicity relations of both stellar and gas components. In addition, its detailed modelling of the radial structure of discs allows qualitatively new comparisons with observation, most notably with the relative sizes and masses of the stellar, atomic, and molecular components in discs. Good agreement is found with recent data. Comparison of results obtained for simulations differing in mass resolution by more than two orders of magnitude shows that all important distributions are numerically well converged even for this more detailed model. An examination of metallicity and surface-density gradients in the stars and gas indicates that our new model, with star formation, chemical enrichment, and feedback calculated self-consistently on local disc scales, reproduces some but not all of the trends seen in recent many-galaxy IFU surveys.

Details

show
hide
Language(s):
 Dates: 2019-11-28
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1093/mnras/stz3233
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Monthly Notices of the Royal Astronomical Society
  Other :
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: OXFORD : OXFORD UNIV PRESS
Pages: - Volume / Issue: 491 (4) Sequence Number: - Start / End Page: 5795 - 5814 Identifier: ISSN: 0035-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000021470