Gas loss in simulated galaxies as they fall into clusters

We use high-resolution cosmological hydrodynamic galaxy formation simulations to gain insights into how galaxies lose their cold gas at low redshift as they migrate from the field to the high-density regions of clusters of galaxies. We find that beyond three cluster virial radii, the fraction of gas...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences - PNAS 2014-06, Vol.111 (22), p.7914-7919
Main Authors: Cen, Renyue, Pop, Ana Roxana, Bahcall, Neta A.
Format: Article
Language:English
Subjects:
Baryons
Cold
Cold gas
Density
Galactic radii
Galaxies
Galaxy clusters
Mass
Orbits
Particle mass
Physical Sciences
Radial velocity
Simulation
Star formation
Stars & galaxies
Stellar masses
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Summary:We use high-resolution cosmological hydrodynamic galaxy formation simulations to gain insights into how galaxies lose their cold gas at low redshift as they migrate from the field to the high-density regions of clusters of galaxies. We find that beyond three cluster virial radii, the fraction of gas-rich galaxies is constant, representing the field. Within three cluster-centric radii, the fraction of gas-rich galaxies declines steadily with decreasing radius, reaching
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.1407300111