2001/07/09 by Fabrizio Brighenti, Brighenti, Fabrizio, William G. Mathews +1
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0107167
6 pages, 3 figures, uses newpasp.sty, to appear in "Chemical Enrichment of the ICM and IGM", ASP Conf. Ser. eds. Matteucci and Fusco-Femiano
arxiv created 2001/07/09 · openalex publication_date 2001/07/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Was the diffuse gas in galaxy groups and clusters heated at high redshift before it entered a massive halo, or was the heating produced inside collapsed objects by SNII accompanying normal star formation? We compare here two radically different models corresponding to the two scenarios described above. Our results indicate that internal heating by SNII works better than the extreme version of external heating that we adopt in reproducing the observed L-T and entropy-T relations.