Stars as a Tracer of the Shape of Irregular Galaxies' Haloes

Details Stars as a Tracer of the Shape of Irregular Galaxies' Haloes Stars as a Tracer of the Shape of Irregular Galaxies' Haloes

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003rmxac..17...46d&link_type=abstract

Galaxy Evolution: Theory & Observations (Eds. Vladimir Avila-Reese, Claudio Firmani, Carlos S. Frenk & Christine Allen) Revista

Astronomy and Astrophysics

Astronomy

2

Nearby Galaxies, Dwarf Galaxies, Stellar Content

Scientific paper

Too little is known about the outskirts of dwarf galaxies. The presence of red extra light (``background sheet'') outside of the main galaxy body and the spatial distribution of resolved old stellar populations suggest that irregular galaxies might have similar outer structures to spirals, consisting primarily of late-type stars out to large galactocentric radii. Further investigation of this claim is critical in constraining the origin and evolution of galaxies and the nature of dark matter halos. We present the preliminary results of our study of nearby irregulars

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