galactic bulge Thick distribution of warm gas and stars around the galactic center.
galactic cannibalism A galaxy merger in which a larger galaxy consumes a smaller one.
galactic bulge
The central bulge of a spiral galaxy, containing a massive amount of interstellar material and most likely a super-massive black hole in the centre.
Galactic Bulge - A somewhat flattened distribution of stars, about 6 kiloparsecs (kpc) in diameter, surrounding the nucleus of the Milky Way
Galactic Cannibalism - The capture and disruption of one galaxy by another ...
Plate 2: Galactic Bulge (between 285 and 65 degrees galactic longitude)
May 21/22, 1953, T. E. Houck and A. D. Code
Blue filter, 45 minute integration ...
A view of the galactic bulge of the Milky Way in the light of radioactive Aluminum ...
Sources:
J. Mould, "Galactic Bulge" Encyclopedia of Astronomy and Astrophysics, Inst. of Physics Publishing, 2001, v.1
Gilmore, King, and van der Kruit, The Milky Way As A Galaxy, University Science Books, 1989
Class notes.
These - such as MACHO, OGLE, EROS, AGAPE, MOA - use stars in the LMC or galactic bulge (for AGAPE, in M31 via what's known as pixel lensing) as background sources and watch for the characteristic shape of a lensing event as foreground point sources ...
the American Astronomical Society the astonishing discovery that most stars in spiral galaxies orbit at roughly the same speed, which implied that their mass densities were uniform well beyond the locations with most of the stars (the galactic bulge).
Near the center there is another structure known as the galactic bulge. This is a more or less spherical distribution of stars centered on the galactic nucleus, i.e., the very heart of the Galaxy.
Many Population I stars in the galactic bulge have higher abundance ratios for the lighter elements (e.g. C, O).
Theory predicts that the Galactic bulge, and especially the region close to the Galactic center, should be densely populated with billions of stars.
Galaxy discs tend to have more gas and dust, and younger stars than galactic bulges, or galactic haloes.
The dusty nature of the galactic bulge does not make observations of this region easy: only infrared light can penetrate the thick veil to reveal the myriad stars hidden there.
Globular clusters, the central supermassive black hole, and a galactic bulge of metal-poor Population II stars form.
A clearing in the dust clouds of the constellation Sagittarius where astronomers can view stars in the Galactic bulge.
The Arches cluster (left) and Quintuplet cluster (right), two of the largest stellar clusters in the Milky Way, are located in the Galactic bulge at less than 100 light years from the Galactic Centre.
Credit: STScI/NASA ...
NGC6522 (right) sits right in the center of Baade's Window - a gap between "curtains" of dust clouds which lets us peek just next to the center of our Milky and see stars on the far side of galactic bulge.
 See also: Bulge, Galaxy, Galaxies, Milky Way, Time
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