Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000head....5.1311m&link_type=abstract
American Astronomical Society, HEAD Meeting #5, #13.11; Bulletin of the American Astronomical Society, Vol. 32, p.1200
Astronomy and Astrophysics
Astronomy
1
Scientific paper
I will discuss the effects of galaxy formation on the thermal state of the intra-cluster medium. Using a semi-analytic modelling for galaxy evolution in common halos (describing galaxy merging, gas cooling, star formation and supernovae heating/expulsion of cold gas) we derived the whole history of the non-gravitational energy input from galaxtic Supernovae to the intra-cluster medium. Such heating is known to be present and to severely affect the X-ray properties of galaxy clusters. I will discuss the effects of different galaxy formation scenarios and star formation recipes on X-ray observables like the X-ray luminosity-temperature relation, the X-ray counts and the X-rays-SZ correlation (where SZ is the Sunyaev-Zel'dovich effect). I will discuss how present and forthcoming X-ray observations can constrain present galaxy formation models.
Cavaliere Alfonso
Menci Nicola
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