Shadowing of X-rays by the Interstellar Clouds in Ophiuchus and X-ray shadowing Observations of a Molecular Cloud

Details Shadowing of X-rays by the Interstellar Clouds in Ophiuchus and X-ray shadowing Observations of a Molecular Cloud Shadowing of X-rays by the Interstellar Clouds in Ophiuchus and X-ray shadowing Observations of a Molecular Cloud

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996sao..reptq....t&link_type=abstract

Technical Report, Smithsonian Astrophysical Observatory Cambridge,MA United States

Astronomy and Astrophysics

Astronomy

Molecular Clouds, Interstellar Matter, Background Radiation, X Ray Astronomy, X Ray Absorption, Molecular Gases, X Rays, Line Spectra

Scientific paper

This grant supported analysis of observations of two interstellar cloud complexes with the ROSAT PSPC during A04. The cloud complexes, Ophiuchus and G337+4, are located at different distances toward the general direction of the Galactic center, where the soft X-ray background is brightest. From the observations of shadowing of the soft X-ray background by the complexes, we planned to derive information about the otherwise unknown source distribution for the background and to quantitatively study the column densities of molecular gas in the complexes. The reduced data represent some of the largest fields of mosaiced PSPC observations. The shadowing is clear toward each complex, although deriving quantitative results for the properties of the shadowing clouds is proving to be more problematic than expected.

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