Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...425l..81w&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 425, no. 2, p. L81-L84
Astronomy and Astrophysics
Astronomy
140
Barred Galaxies, Galactic Bulge, Galactic Structure, Infrared Astronomy, Milky Way Galaxy, Cosmic Background Explorer Satellite, Galactic Evolution, Interstellar Extinction, Near Infrared Radiation, Spaceborne Astronomy
Scientific paper
Low angular resolution maps of the Galactic bulge at 1.25, 2.2, 3.5, and 4.9 micrometers obtained by the Diffuse Infrared Background Experiment (DIRBE) onboard NASA's Cosmic Background Explorer (COBE) are presented. After correction for extinction and subtraction of an empirical model for the Galactic disk, the surface brightness distribution of the bulge resembles a flattened ellipse with a minor-to-major axis ratio of approximately 0.6. The bulge minor axis scale height is found to be 2.1 deg +/- 0.2 deg for all four near-infrared wavelengths. Asymmetries in the longitudinal distribution of bulge brightness contours are qualitatively consistent with those expected for a triaxial bar with its near end in the first Galactic quadrant (0 deg less than l less than 90 deg). There is no evidence for an out-of-plane tilt of such a bar.
Arendt Richard G.
Berriman Bruce G.
Dwek Eli
Freudenreich Henry T.
Hauser Michael G.
No associations
LandOfFree
COBE diffuse infrared background experiment observations of the galactic bulge does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with COBE diffuse infrared background experiment observations of the galactic bulge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and COBE diffuse infrared background experiment observations of the galactic bulge will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1256179