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J/MNRAS/312/557  K-band Luminosity Function of Field Galaxies    (Loveday 2000)
The K-band Luminosity Function of Nearby Field Galaxies
   Loveday J.
   <Mon. Not. R. Astron. Soc. 312, 557 (2000)>
   =2000MNRAS.312..557L
ADC_Keywords:  Galaxies, IR ; Photometry, infrared ; Surveys ; Redshifts

Keywords: techniques: photometric surveys - galaxies: luminosity function,
          mass function - cosmology: observations

Description:
    We present a measurement of the K-band luminosity function (LF) of
    field galaxies obtained from near-infrared imaging of a sample of 345
    galaxies selected from the Stromlo-APM Redshift Survey. The LF is
    reasonably well fitted over the 10-mag range -26 < M(K-band) < -16 by
    a Schechter function with the parameters
    α=-1.16±0.19, M*=-23.58±0.42 and {phi*}=0.012±0.008 Mpc-3,
    assuming a Hubble constant of 100 km.s-1.Mpc-1. We have also estimated
    the LF for two subsets of galaxies subdivided by the equivalent width
    of the Hα emission line at EW(Hα)=1nm. There is no
    significant difference in LF shape between the two samples, although
    there is a hint (∼1σ significance) that emission-line galaxies
    (ELGs) have M* roughly 1 mag fainter than non-ELGs. Contrary to the
    optical LF, there is no difference in the faint end slope α
    between the two samples.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        89      351   Catalog of K-band galaxy photometry


See also:
   II/211 : K-band survey in high galactic latitude (Glazebrook+ 1994)
   J/ApJS/107/201 : The Stromlo-APM Redshift Survey IV (Loveday+ 1996)
   J/MNRAS/278/1025 : The APM Bright Galaxy Catalogue (Loveday 1996)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units    Label      Explanations

   1- 11  A11   ---      Name      *Galaxy name
  14- 15  I2    h        RAh        Right Ascension (1950)
  17- 18  I2    min      RAm        Right Ascension (1950)
  20- 24  F5.2  s        RAs        Right Ascension (1950)
      27  A1    ---      DE-        Declination sign
  28- 29  I2    deg      DEd        Declination (1950)
  31- 32  I2    arcmin   DEm        Declination (1950)
  34- 37  F4.1  arcsec   DEs        Declination (1950)
  40- 44  F5.2  mag      bJmag      b(J) magnitude
  47- 51  I5    km/s     RV         heliocentric recession velocity
  54- 58  F5.2  mag      Kmag      *K-band magnitude
  62- 65  F4.2  mag      e_Kmag     error in K-band magnitude
  68- 70  I3    arcsec   SMajAxis   semimajor axis of measurement ellipse
  74- 75  I2    arcsec   SMinAxis   semiminor axis of measurement ellipse
  78- 80  I3    deg      PA         position angle measured clockwise from
  83- 84  I2    ---      fSExtr    *flags outputted by SExtractor
  87- 89  A3    ---      Notes     *? Source comments

Note on Name:
    Galaxy naming follows the same convention as the APM Bright Galaxy
    Catalogue (1996MNRAS.278.1025L) and the Stromlo-APM Redshift Survey
    (1996ApJS..107..201L).
Note on Kmag:
    Obtained with the Cerro Tololo Interamerican Observatory (CTIO) 1.5
    meter telescope using the CIRIM infrared array through the standard K
    filter over the nine nights 1996 August 31-September 4 and 1997
    October 19-22.
Note on fSExtr:
    SExtractor 2.0.1.5 software package developed by Bertin and Arnouts
    (1996A&AS..117..393B) used to detect and measure images.
Note on Notes:
   1 = Galaxy deblended by SExtractor; flux of components was summed.
   2 = A "biggrid" observation: photometry may be less reliable than most
       galaxies.
   3 = NGC1672: APM deblended this galaxy.
   4 = Possibly non-photometric
   5 = Central galaxy in close group of 3
   6 = Double nucleus


Acknowledgements:
   An electronic version of the data table was provided to ADC by J. Loveday.
(End)                         T. Sodroski [SSDOO/ADC]                24-Jul-2000