Star-Forming Ring Relics in the Centers of Early-Type Galaxies

Details Star-Forming Ring Relics in the Centers of Early-Type Galaxies Star-Forming Ring Relics in the Centers of Early-Type Galaxies

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1240..255s&link_type=abstract

HUNTING FOR THE DARK: THE HIDDEN SIDE OF GALAXY FORMATION. Edited by Victor P. Debattista and Cristina C. Popescu AIP Conferen

Physics

1

Star Formation, Stellar Size, Brightness, Spiral Galaxies, Star Formation, Stellar Content And Populations, Radii, Morphology And Overall Structure, Magnitudes And Colors, Luminosities, Spiral Galaxies

Scientific paper

If bars are transient structures then nuclear star-forming rings, which are related to inner Lindblad resonances, are transient too. When star formation consumes all their gas fuel, they must leave low-contrast ring zones of relatively young stars. In early-type galaxies, these relic rings must be embedded into the large bulges and can be found only by mapping mean stellar population ages in the central parts of galaxies. Here I present a few examples of relic rings which were discovered by our team in the course of 2D spectroscopic surveys of nearby early-type disk galaxies.

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