Diffuse X‐Ray Emission from the Spiral Galaxy NGC 2403 Discovered withChandra
- 10 October 2002
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 578 (1), 109-113
- https://doi.org/10.1086/342396
Abstract
We have detected diffuse soft X-ray emission (0.4-1 keV) from the disk of the spiral galaxy NGC 2403 with Chandra. This diffuse emission (with a total luminosity of 2.1 x 10^38 erg/s and a gas temperature of 2-8 x 10^6 K) is well separated from the numerous bright point sources. NGC 2403 is a luminous spiral galaxy with a high rate of star formation. Recent HI observations have revealed an extended HI halo with anomalous velocities and a general inflow towards the central regions of the galaxy. This result and the present detection of a diffuse, hot X-ray emitting gas point at a very active disk-halo connection and galactic fountain types of phenomena.Comment: 13 pages, 4 figures. Accepted for publication in ApThis publication has 22 references indexed in Scilit:
- Deep H [CSC]i[/CSC] Survey of the Spiral Galaxy NGC 2403The Astronomical Journal, 2002
- A New, Kinematically Anomalous H [CSC]i[/CSC] Component in the Spiral Galaxy NGC 2403The Astrophysical Journal, 2001
- Ultraluminous X-Ray Sources in External GalaxiesThe Astrophysical Journal, 2001
- ASCA Observation of Ultra-Luminous X-Ray Sources in the Nearby Spiral Galaxy NGC 2403Publications of the Astronomical Society of Japan, 2000
- Ambiguities in Fits to the Complex X‐Ray Spectra of Starburst GalaxiesThe Astrophysical Journal, 2000
- Complex Spectra of the Galactic Ridge X‐Rays Observed withASCAThe Astrophysical Journal, 1997
- The Hot Gas Surrounding the Edge‐on Galaxy NGC 891The Astrophysical Journal, 1997
- A Deep X-Ray Image of M33The Astrophysical Journal, 1996
- X Rays From Normal GalaxiesAnnual Review of Astronomy and Astrophysics, 1989
- The galactic fountain of high-velocity cloudsThe Astrophysical Journal, 1980