Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003chjas...3..281e&link_type=abstract
Chinese Journal of Astronomy & Astrophysics, Vol. 3, Supplement, p. 281-286
Astronomy and Astrophysics
Astrophysics
Galactic Plane, X-Rays ¨C Galactic Diffuse Emission, Supernova Remnants, X-Ray Sources
Scientific paper
We report several important results obtained from recent Galactic X-ray survey observations, in particular ASCA Galactic center and plane surveys and our Chandra deep survey on the (l,b) ≈ (28.5°,0.0°) region. Strong hard X-ray diffuse components are observed from Galactic ridge, center and bulge, and they have both thermal and non-thermal spectral components. Dozens of discrete and extended sources have been discovered on the Galactic plane, which also indicate thermal and/or non-thermal X-ray energy spectra. They are often associated with radio sources and are considered to be SNR candidates. Most of the hard X-ray point sources in the outer part of the Galactic plane are considered to be background AGNs, while fraction of the Galactic hard X-ray sources (such as quiescent dwarf novae) increases toward the Galactic center. Most of the soft X-ray sources on the Galactic plane are presumably nearby active stars.
Bamba Aya
Ebisawa Ken
Senda Atsushi
Ueno Maki
Yamauchi Shigeo
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