Mapping the Distribution of 10(-6) K Gas Toward the Galactic Poles

Details Mapping the Distribution of 10(-6) K Gas Toward the Galactic Poles Mapping the Distribution of 10(-6) K Gas Toward the Galactic Poles

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.0719j&link_type=abstract

American Astronomical Society, 188th AAS Meeting, #07.19; Bulletin of the American Astronomical Society, Vol. 28, p.835

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The diffuse 1/4 keV background at high galactic latitude is a combination of emission from the local interstellar medium (LISM), the galactic halo, and the extragalactic background. Separation of the LISM contribution from the distant ones can be accomplished via the detection of intensity variations in the 1/4 keV background caused by absorption by intervening neutral material. I have searched the ROSAT archive for PSPC observations with |b|>60deg that are coincident with the IRAS 100 mu m enhancements identified by Desert, Bazell, & Boulanger (1988) as likely molecular cirrus clouds. For each field, I have generated maps of the intensity in the 1/4 keV band following the procedure suggested by Snowden et al. (1994) and fit for an anticorrelation with the 100 mu m intensity. I will present preliminary results for the derived intensity distributions for the LISM and distant components.

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