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XMM-Newton First-Light Observations of the Hickson Galaxy Group 16

2000

This paper presents the XMM-Newton first-light observations of the Hickson-16 compact group of galaxies. Groups are possibly the oldest large-scale structures in the Universe, pre-dating clusters of galaxies, and are highly evolved. This group of small galaxies, at a redshift of 0.0132 (or 80 Mpc) is exceptional in the having the highest concentration of starburst or AGN activity in the nearby Universe. So it is a veritable laboratory for the study of the relationship between galaxy interactions and nuclear activity. Previous optical emission line studies indicated a strong ionising continuum in the galaxies, but its origin, whether from starbursts, or AGN, was unclear. Combined imaging and…

Physicsmedia_common.quotation_subjectAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)Continuum (design consultancy)FOS: Physical sciencesAstronomy and AstrophysicsGalaxies: activeAstrophysicsFirst lightAstrophysics::Cosmology and Extragalactic AstrophysicsGalaxy mergerAstrophysicsGalaxyUniverseRedshiftCompact groupSpace and Planetary ScienceGalaxy groupGalaxies: starburstX-rays: galaxieAstrophysics::Galaxy Astrophysicsmedia_common
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