We study the effect of heating and metal enrichment from supernovae (SNe) residing between galaxies on the Intra-Cluster Medium (ICM). Recent observations indicate that a considerable fraction (˜20%) of the SN Ia parent stellar population in galaxy clusters is intergalactic. By considering their effect on the relaxed progenitors of cooling flow clusters we propose that intra-cluster SNe can act as a distributed heating source which may influence the initial stages of the formation of cooling flows. We investigate the increase in cooling time as a function of the energy input supplied by SNe and their assumed spatial distribution, and conclude that intra-cluster SNe represent a heating source which in some clusters can cause a delay of the formation of cooling flows. This would imply that some cooling flows are younger than previously thought. We also discuss the impact that a large population of intra-cluster SNe could have on the chemical evolution of the ICM in cooling flow clusters.

Domainko W., Gitti M., Schindler S., Kapferer W. (2004). Feedback from intra-cluster supernovae on the ICM in cooling flow galaxy clusters. ASTRONOMY & ASTROPHYSICS, 425, L21-L24 [10.1051/0004-6361:20040178].

Feedback from intra-cluster supernovae on the ICM in cooling flow galaxy clusters

GITTI, MYRIAM;
2004

Abstract

We study the effect of heating and metal enrichment from supernovae (SNe) residing between galaxies on the Intra-Cluster Medium (ICM). Recent observations indicate that a considerable fraction (˜20%) of the SN Ia parent stellar population in galaxy clusters is intergalactic. By considering their effect on the relaxed progenitors of cooling flow clusters we propose that intra-cluster SNe can act as a distributed heating source which may influence the initial stages of the formation of cooling flows. We investigate the increase in cooling time as a function of the energy input supplied by SNe and their assumed spatial distribution, and conclude that intra-cluster SNe represent a heating source which in some clusters can cause a delay of the formation of cooling flows. This would imply that some cooling flows are younger than previously thought. We also discuss the impact that a large population of intra-cluster SNe could have on the chemical evolution of the ICM in cooling flow clusters.
2004
Domainko W., Gitti M., Schindler S., Kapferer W. (2004). Feedback from intra-cluster supernovae on the ICM in cooling flow galaxy clusters. ASTRONOMY & ASTROPHYSICS, 425, L21-L24 [10.1051/0004-6361:20040178].
Domainko W.; Gitti M.; Schindler S.; Kapferer W.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/330938
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