UGC 8508 - A dwarf galaxy associated with the M 101 group

Details UGC 8508 - A dwarf galaxy associated with the M 101 group UGC 8508 - A dwarf galaxy associated with the M 101 group

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98..732m&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, Aug. 1986, p. 732-739.

Astronomy and Astrophysics

Astronomy

6

Astronomical Spectroscopy, Dwarf Galaxies, Spectral Resolution, Supergiant Stars, Brightness Distribution, Charge Coupled Devices, Color-Magnitude Diagram, Star Distribution, Star Formation

Scientific paper

Two-color CCD photometry of UGC 8508 has resolved the system into stars. The color-magnitude diagram shows blue and red supergiants; the apparent magnitudes of the brightest stars indicate that UGC 8508 lies within 2 Mpc of the adopted 6 Mpc distance of the M101 group. The galaxy contains a significant color gradient; star formation is confined to the central 1.5 scale lengths (0.8 kpc). UGC 8508 has a central surface brightness intermediate between bursting and quiescent dwarf irregular galaxies.

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