publication . Article . Preprint . 2017

How to quench a galaxy

Thomas P. Quinn; Fabio Governato; Amélie Saintonge; Hiranya V. Peiris; Michael Tremmel; Nina Roth; Marta Volonteri; Andrew Pontzen;
Open Access English
  • Published: 01 Jan 2017
  • Publisher: HAL CCSD
We show how the interplay between active galactic nuclei (AGN) and merger history determines whether a galaxy quenches star formation at high redshift. We first simulate, in a full cosmological context, a galaxy of total dynamical mass $10^{12}\,M_{\odot}$ at $z=2$. Then we systematically alter the accretion history of the galaxy by minimally changing the linear overdensity in the initial conditions. This "genetic modification" approach allows the generation of three sets of $\Lambda$CDM initial conditions leading to maximum merger ratios of 1:10, 1:5 and 2:3 respectively. The changes leave the final halo mass, large scale structure and local environment unchang...
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::High Energy Astrophysical Phenomena
free text keywords: galaxies: evolution, galaxies: star formation, galaxies: stellar content, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics, Science & Technology, Physical Sciences, Astronomy & Astrophysics, galaxies: evolution, galaxies: star formation, galaxies: stellar content, STAR-FORMATION RATE, ACTIVE GALACTIC NUCLEI, BLACK-HOLE ACCRETION, DARK-MATTER HALOES, SIMILAR-TO 2, INTEGRAL FIELD SPECTROSCOPY, KILOPARSEC-SCALE OUTFLOWS, M-ASTERISK RELATION, QUIESCENT GALAXIES, FORMING GALAXIES, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Physics, Lenticular galaxy, Active galactic nucleus, Type-cD galaxy, Galaxy, Astrophysics, Galactic halo, Interacting galaxy, Astronomy, Galaxy merger, Ring galaxy
Funded by
NSF| Collaborative Proposal: Do We Need Something Beyond Cold Dark Matter?
  • Funder: National Science Foundation (NSF)
  • Project Code: 1410012
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
The formation and evolution of massive black holes
  • Funder: European Commission (EC)
  • Project Code: 614199
  • Funding stream: FP7 | SP2 | ERC
RCUK| DiRAC2: 100 Tflop/s HPC cluster procurement
  • Funder: Research Council UK (RCUK)
  • Project Code: ST/K000373/1
  • Funding stream: STFC
NSF| Collaborative Research: A Holistic Approach to Modeling Galaxy Clusters
  • Funder: National Science Foundation (NSF)
  • Project Code: 1514868
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC
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