Detection of 10 dexp (10) solar mass of hot gas in the normal elliptical galaxy NGC 5846 with the Einstein satellite.
Abstract
In connection with the detection of integralactic hot gas in the NGC 3607 group of galaxies by Biermann et al. (1982), questions arise regarding the generality of the result. If hot gas in significant amounts exists in other groups, there are interesting implications for several other phenomena. The present investigation is concerned with these questions. The NGC 5846 galaxy group was selected as object of study for the investigation. NGC 5846 is the dominant galaxy in the group G50 or TG 95, which has a distance of 34.3 Mpc. It is an elliptical galaxy. The current investigation leads to the establishment of the existence of distributed hot gas in a second group of galaxies. As with the NGC 3607 group, the X-ray luminosity of NGC 5846 lies on the LX-sigma relation already established for galaxy clusters. The observations of NGC 5846 were conducted on 1981 January 26, with the IPC of the Einstein X-ray Observatory with an effective observing time of 14,000 s.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- May 1983
- DOI:
- 10.1086/184031
- Bibcode:
- 1983ApJ...268L..69B
- Keywords:
-
- Elliptical Galaxies;
- Galactic Evolution;
- High Temperature Gases;
- Intergalactic Media;
- Interstellar Gas;
- X Ray Sources;
- Astronomical Models;
- Cosmology;
- Galactic Clusters;
- Galactic Nuclei;
- Galactic Structure;
- Gas Density;
- Heao 2;
- Luminosity;
- Mass Distribution;
- Astrophysics