Photometric distances to NGC 628 and its four companions.

Details Photometric distances to NGC 628 and its four companions. Photometric distances to NGC 628 and its four companions.

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26as..119..499s&link_type=abstract

Astronomy and Astrophysics Supplement, v.119, p.499-507

Astronomy and Astrophysics

Astrophysics

52

Galaxies: Individual: Ngc 628, Distances And Redshifts, Irregular

Scientific paper

Based on photometry of the brightest blue stars we derived distance moduli for NGC 628 and its dwarf irregular companions: DDO 13, UGC 1171, UGC 1104, and K 10. The mean modulus of the group is estimated to be 29.46 mag with a formal (internal) error of 0.11. The total mass to luminosity ratio of 40Msun_/Lsun_ seems sufficient for NGC 628 to keep its companions in bound orbits.

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