INVESTIGADORES
ABADI Mario Gabriel
congresos y reuniones científicas
Título:
Effects of environment on the properties of cluster galaxies via ram pressure stripping
Autor/es:
TECCE, T. E.; CORA, S. A.; TISSERA, P. B.; ABADI, M. G.
Lugar:
Malargue
Reunión:
Conferencia; 52 Reunion de la Asociacion Argentina Astronomia; 2008
Institución organizadora:
Asociacion Argentina de Astronomia
Resumen:
Galaxies moving through the hot diffuse gas in galaxy clusters may lose
a significant fraction of their cold gas via ram pressure stripping
(RPS). Combining non-radiative N-body/SPH simulations of 1014 1015
h-1 M clusters and a semi-analytic model of galaxy formation which
implements the RPS effect, we study its influence on galaxy colors, gas
content, and star formation. RPS affects mainly MV -17 galaxies and
starts becoming significant only at z 0.5, strongly suppressing star
formation in the affected galaxies and causing a marked dependence of
the cold gas content with clustercentric radius. Colors are mildly
affected, with an increase in the fraction of faint red galaxies.
Galaxies in the cluster outskirts are relatively more gas-depleted in
the RPS model than in a model without RPS.