THE GALACTIC-X-RAY HALO

Authors
PIETZ J KERP J KALBERLA PMW BURTON WB HARTMANN D MEBOLD U
Citation
J. Pietz et al., THE GALACTIC-X-RAY HALO, Astronomy and astrophysics, 332(1), 1998, pp. 55-70
Citations number
61
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
332
Issue
1
Year of publication
1998
Pages
55 - 70
Database
ISI
SICI code
0004-6361(1998)332:1<55:>2.0.ZU;2-I
Abstract
We analyzed the intensity distribution of the 3/4 keV and 1/4 keV diff use soft X-ray background by correlating the ROSAT all-sky survey with the Leiden/Dwingeloo H I survey. We found that the 3/4 keV and 1/4 ke V intensity distributions can be modelled by a contribution from an is othermal (kT = 0.135 keV) flattened X-ray halo superposed on the radia tion from an extragalactic X-ray background. The exponential scale hei ght of the X-ray halo is about 4.4 kpc and its radial scale length is about 15 kpc; the X-ray halo luminosity, L-X, is about 7.10(39) erg s( -1).