galactic bulge

galactic bulge

(gă-lak -tik) See galaxies; Galaxy.

galactic bulge

[gə¦lak·tik ′bəlj]
(astronomy)
A spheroidal distribution of stars that is centered on the nucleus of the Milky Way Galaxy and extends to a distance of about 3 kiloparsecs from the center.
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References in periodicals archive ?
This should ultimately lead to a more precise estimate of the age of the galactic bulge.
A galactic bulge is thought to evolve through numerous mergers and collisions with other galaxies which would bring a large amount of interstellar materials into a galactic center and further the evolution of a black hole.
Obviously, the angular momentum totals indicate that this gravitationally bound system does not extend significantly into the Galactic bulge, otherwise, the system's predicted H value will increase by many orders of magnitude with increases in radial distance.
Suburbia wouldn't be complete without a neighborhood bar, and the galactic bulge is no exception.
Microlensing events detected by the OGLE or MOA groups in the galactic bulge are studied for caustic behaviour in the microlensing lightcurve to detect the presence of planets around the lens star.
Among the topics are the evolution and nucleo-synthesis of extremely metal-poor AGB stars, the second release of the Torun Catalogue of galactic post-AGB stars, double chemistry in galactic bulge planetary nebulae, and the role of AGB stars in the global gas and dust budget of the Large Magellanic cloud.
Generally, the black hole's mass was seen to be about 1,000th that of the mass of the surrounding galactic bulge.
Specific topics covered include the UV spectrum of the galactic bulge, helium and the hot horizontal branch, binary population synthesis and sdB stars at different metallicities, and hypervelocity stars.
The remnants of its spiral structure can still be seen-the former galactic bulge now forms the "eye" of the penguin, around which it is still possible to see where the galaxy's pinwheeling arms once were.
New details are emerging about the structure of the galactic bulge surrounding the black hole core.
The astrophysical measurements described in the preceding paragraph in terms of black holes could just as well be described by the PV model of the present paper, suggesting that the PV is the source of the energy and variability of the AGN and probably the primary gases (electrons and protons) of its galactic bulge.
If we want to go out of our little box and see into the infinite universe, or in the galactic bulge, or far outside the galaxy--are there planets even there?