Estimating the Luminosity Function of M51-Type Galaxies

Details Estimating the Luminosity Function of M51-Type Galaxies Estimating the Luminosity Function of M51-Type Galaxies

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ap.....46..151k&link_type=abstract

Astrophysics (English translation of Astrofizika), v. 46, Issue 2, p. 151-163 (2003).

Astronomy and Astrophysics

Astrophysics

Galaxies - Luminosity Function - M51 Type

Scientific paper

A new sample of M51-type galaxies consisting of 46 systems is used to estimate the B-band luminosity function. The luminosity function for the primary components of the systems can be described by a Schechter function with the parameters * = (1.4±0.3)×10-5 Mpc-3, = -1.3+0.4 -0.3, and M * = -20.3+0.2 -0.1. The values of the latter two parameters are comparable to those for isolated galactic pairs. The resulting estimate of the average density of M51-type galaxies is (4±3)% of the average density of isolated pairs for luminosities in the range -22m.0

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