Formation of galactic bulges by starbursts and the origin of Hubble morphological types

Details Formation of galactic bulges by starbursts and the origin of Hubble morphological types Formation of galactic bulges by starbursts and the origin of Hubble morphological types

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasj...44..325s&link_type=abstract

Astronomical Society of Japan, Publications (ISSN 0004-6264), vol. 44, no. 3, 1992, p. 325-329. Research supported by Japan Soci

Astronomy and Astrophysics

Astronomy

16

Galactic Bulge, Galactic Evolution, Starburst Galaxies, Galactic Structure, Molecular Clouds, Star Formation

Scientific paper

The possibility that a significant fraction of galactic bulge stars are formed from gas clouds ejected by starbursts in the central regions of galaxies is investigated. Stronger bursts result in greater and more extended bulges, and thereby lead to early type galaxies, and vice versa. As the burst strength depends on the strength of tidal interaction, Hubble types inevitably depend on the galactic number density, which explains the density-morphology relationship.

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