The impact of high pressure cluster environment on the X-ray luminosity of Coma early-type galaxies

2004/03/10 by A. Finoguenov, F. Miniati, Francesco Miniati · 1 citation
Physics and Astronomy · #Adiabatic process #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Star Formation Studies #Brightest cluster galaxy #Cluster (spacecraft) #Coma (optics) #Coma Cluster #Flattening #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Luminosity #Physics #astro-ph

paper · pdf · doi:10.1051/0004-6361:20040111

published as Astron.Astrophys. 418 (2004) L21-L25 · 5 pages, 2004, A&A Letters, in press

arxiv created 2004/03/10 · openalex publication_date 2004/04/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We present an observational study of the LX vs. relation for early-type galaxies in the Coma cluster based on the XMM-Newton survey data. Compared to a similar relation for a sample dominated by field early-type galaxies, the Coma cluster galaxies show a flatter slope. Our calculations show that adiabatic compression produces a flattening in the LX vs. relation that is in remarkable agreement with the observed effect. Our scenario is further supported by the observed compactness of the X-ray emission of Coma galaxies.

Citations

• XMM-Newton witness of M 86 X-ray metamorphosis
• Zooming in on the Coma Cluster with [ITAL]Chandra[/ITAL]: Compressed Warm Gas in the Brightest Cluster Galaxies
• \mathsf¹²CO(1-0) observations of NGC 4848: A Coma galaxy after stripping

Cited by

• The X-ray luminosity function of galaxies in the Coma cluster
• The Two‐dimensionalXMM‐NewtonGroup Survey:z< 0.012 Groups