Dwarf Galaxies in the NGC 1023 Group - Astrophysics > Cosmology and Nongalactic AstrophysicsReportar como inadecuado




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Abstract: We present a compilation of galaxies in the NGC 1023 Group, an accumulationof late-type galaxies at a distance of 10 Mpc. Members at high and intermediateluminosities were identified from their spectroscopic velocities. Members atlow luminosities were identified from their morphologies on wide-field CCDimages. The faint-end slope is in the range -1.27 < alpha < -1.12. There isevidence for two dwarf galaxy populations: one in the halo of NGC 1023 that isdominated by dwarf elliptical galaxies, and one in the infall regionsurrounding NGC 1023 that contains mainly dwarf irregular galaxies. Similardistinctive populations are observed in the Local Group.



Autor: Neil Trentham, Brent Tully

Fuente: https://arxiv.org/







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