2002/02/22 by G. Trinchieri, Ginevra Trinchieri, Paul Goudfrooij · 4 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Galaxies: Formation, Evolution, Phenomena #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1051/0004-6361:20020311
Accepted for publication, A&A. Figures 1, 5, 11 have been downgraded to fit in the ps file
arxiv created 2002/02/22 · openalex publication_date 2002/05/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
The excellent quality of the Chandra observation of NGC 5846 reveals a complex X-ray morphology of the central regions of this galaxy. An intriguing morphological similarity between the X-ray and the optical line emission, discovered before using ROSAT HRI images (Trinchieri, Noris & Di Serego Alighieri 1997), is confirmed here in unprecedented detail. Complex spectral characteristics are associated with the morphological peculiarities, indicating a possibly turbulent gas in this object. A population of ~ 40 individual sources is also observed, with Lx in the range ~ 3 x 10**38- 2 x 10**39 erg/sec, with an X-ray luminosity function that is steeper in the high-luminosity end than in other early-type galaxies.