The K-band Galaxy Luminosity Function: Results from the 2MASS Prototype Camera for Two Clusters

Details The K-band Galaxy Luminosity Function: Results from the 2MASS Prototype Camera for Two Clusters The K-band Galaxy Luminosity Function: Results from the 2MASS Prototype Camera for Two Clusters

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...187.7504s&link_type=abstract

American Astronomical Society, 187th AAS Meeting, #75.04; Bulletin of the American Astronomical Society, Vol. 27, p.1391

Astronomy and Astrophysics

Astronomy

Scientific paper

During engineering runs, the 2MASS prototype camera made K-band scans covering several tens of square degrees around the Coma cluster and Abell 262 (in the Pisces-Perseus supercluster region). The galaxy counts in these clusters are relatively complete to absolute magnitudes of about K_s ~ -21, which is ~ 2 mag fainter than the ``knee'' in the luminosity function. To establish cluster membership, we have collected redshift data for most of the galaxies, and these data are almost complete for galaxies brighter than K_s ~ -22.5. We use the measured distribution with redshift for these brighter galaxies along with a Schechter luminosity function (which we converge on iteratively) to estimate the K-band luminosity function to the survey's limits.

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