Shadowing studies in the moderate (CCD) resolution era

M. Galeazzi, A. Gupta

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Shadowing experiment in the direction of neutral hydrogen clouds have been an important tool in the study of the diffuse X-ray background since the launch of ROSAT in 1991. In the current era of CCD detectors, shadowing experiments have evolved to "contrast" experiments, where oncloud and off-cloud spectra are compared to separate foreground and background components. The separation, combined with the improved resolution of the CCD detectors, allows a first order spectral analysis of the individual diffuse X-ray background components. In this paper we review the main shadowing experiment performed with Chandra, XMM-Newton, and Suzaku, and we discuss the residts to extract some global properties of the diffuse emission.

Original languageEnglish (US)
Title of host publicationThe Local Bubble and Beyond II - Proceedings of the International Conference, LBB-II
Number of pages8
StatePublished - Nov 27 2009
EventInternational Conference on The Local Bubble and Beyond II, LBB-II - Philadelphia, PA, United States
Duration: Apr 21 2008Apr 24 2008

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


OtherInternational Conference on The Local Bubble and Beyond II, LBB-II
Country/TerritoryUnited States
CityPhiladelphia, PA


  • X-rays:diffuse background

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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