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COBE's Galactic Bar and Disk

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arxiv astro-ph/9707340 v3 pith:36VZXVAR submitted 1997-07-30 astro-ph

classification astro-ph
keywords modeldiskapproximatelybackgroundedgegalacticholeinfrared
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A model of the bar and old stellar disk of the Galaxy has been derived from the survey of the Diffuse Infrared Background Experiment (DIRBE) of the Cosmic Background Explorer at wavelengths of 1.25, 2.2, 3.5, and 4.9 microns. It agrees very well with the data, except in directions in which the near- infrared optical depth is high. Among the conclusions drawn from the model: The Sun is located approximately 16.5 pc above the midpoint of the Galactic plane. The disk has an outer edge four kpc from the Sun, and is warped like the HI layer. It has a central hole roughly the diameter of the inner edge of the "three-kiloparsec" molecular cloud ring, and within that hole lies a bright, strong, "early-type" bar, tilted approximately 14 degrees from the Sun-Galactic center line. The model has 47 free parameters. The model is discussed in detail and contour plots and images of the residuals presented.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    astro-ph.HE 2026-05 unverdicted novelty 5.0 of 10

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  2. Supermassive black holes and their surroundings: MeV signatures

    astro-ph.HE 2025-07 unverdicted novelty 2.0 of 10

    A review of open questions in supermassive black hole physics that argues the MeV gamma-ray band is the critical missing observational window.

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