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Using the University of California Berkeley Infrared Spatial Interferometer with a radio frequency (RF) Ðlter bank, the Ðrst interferometric observations of mid-infrared molecular absorption features of ammonia and silane with very high spectral resolution (j/*jD 105) were made. Under the 3 4 assumptions of spherical symmetry and uniform outÑow, these new data permitted the molecular stratiÐcat...
We use recent data obtained by three (OSSE, BATSE, and COMPTEL) of four instruments on board the Compton Gamma Ray Observatory (CGRO) to construct a model of Cyg X-1 that describes its emission in a broad energy range, from soft X-rays to MeV c-rays, self-consistently. The c-ray emission is interpreted to be the result of Comptonization, bremsstrahlung, and positron annihilation in a hot, optic...
We analyze archival ROSAT HRI, ROSAT PSPC, and ASCA data of the X-rayÈfaint early-type galaxy NGC 4697. The joint ROSAT PSPC]ASCA spectrum is Ðtted by a two-component thermal model, a MEKAL model with keV with low metallicity and a bremsstrahlung kT MEKAL \ 0.26 ~0.03 `0.04 model with keV. A similar model was found to Ðt the spectra of another faint earlykT BREM \ 5.2 ~1.6 `3.0 type galaxy (NGC...
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