Nitrogen abundance in the X-ray halos of clusters and groups of galaxies

• Published in: Astronomy and astrophysics (Berlin) Vol. 621; p. A9
• Main Authors: Mao, Junjie, de Plaa, Jelle, Kaastra, Jelle S., Pinto, Ciro, Gu, Liyi, Mernier, François, Yan, Hong-Liang, Zhang, Yu-Ying, Akamatsu, Hiroki
• Format: Journal Article
• Language: English
• Published: Heidelberg EDP Sciences 01.01.2019
• Subjects: Abundance; Chemical evolution; Emission spectra; Galactic clusters; Galactic halos; Galaxies; galaxies: clusters: intracluster medium; Massive stars; Metallicity; Nitrogen; Organic chemistry; Stars; Stars & galaxies; Stellar populations; techniques: spectroscopic; X ray spectra; X-rays: galaxies; X-rays: galaxies: clusters

Context. Chemical abundances in the X-ray halos (also known as the intracluster medium, ICM) of clusters and groups of galaxies can be measured via prominent emission line features in their X-ray spectra. Elemental abundances are footprints of time-integrated yields of various stellar populations th...