view Abstract Citations (15) References (47) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Observational Constraints on an Embedded Cloud Model for the Soft X-Ray Diffuse Background Burrows, D. N. Abstract The reason for the observed anticorrelation between soft X-ray diffuse background (SXRB) and neutral hydrogen column densities are considered. Using the B and C band data from an all-sky survey of the SXRB, as well as data in the Be band, it is shown that the Jakobsen and Kahn (1986) embedded cloud model, in which several statistical properties of the SXRB in the B and C bands were used to constrain their model parameters, cannot fit the observed band ratios, except in the limit in which virtually all of the emission originates in the near side of the absorbing gas. It was also shown that model parameters corresponding to appreciably mixed emission and absorption, as proposed by Bunner et al. (1969) and Davidsen et al. (1972), do not fit the data. Model parameters corresponding to the absorption models of Bowyer et al. (1968), Bunner et al. (1969), Davidsen et al. (1972), and Yentis et al. (1972), cannot fit the data unless the absorbing material is more strongly clumped than is permitted by 21-cm observations. Publication: The Astrophysical Journal Pub Date: May 1989 DOI: 10.1086/167436 Bibcode: 1989ApJ...340..775B Keywords: Background Radiation; Cosmic X Rays; Diffuse Radiation; Interstellar Matter; Radio Sources (Astronomy); Absorption Spectra; Emission Spectra; Sky Surveys (Astronomy); Spectral Bands; Astrophysics; GALAXIES: THE GALAXY; INTERSTELLAR: MATTER; RADIO SOURCES: 21 CM RADIATION; X-RAYS: GENERAL full text sources ADS | data products SIMBAD (2)