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J/MNRAS/312/557  K-band Luminosity Function of Field Galaxies    (Loveday 2000)
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The K-band Luminosity Function of Nearby Field Galaxies 
   Loveday J.
   <Mon. Not. R. Astron. Soc. 312, 557 (2000)>
   =2000MNRAS.312..557L
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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 {alpha} = -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 H{alpha} emission line at EW(H{alpha})=10 Å. There
   is no significant difference in LF shape between the two samples, although
   there is a hint (~1{sigma} 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 {alpha} between the two
   samples.


File Summary:
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 FileName       Lrecl  Records  Explanations
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ReadMe             80        .  This file
table1.dat         89      351  Catalog of K-band galaxy photometry
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See also:
   J/ApJS/107/201 : The Stromlo-APM Redshift Survey IV (Loveday+ 1996)
   J/MNRAS/278/1025 : The APM Bright Galaxy Catalogue (Loveday 1996)  
   II/211 : K-band survey in high galactic latitude (Glazebrook+ 1994) 

Byte-by-byte Description of file: table1.dat
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   Bytes  Format Units    Label      Explanations
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   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
  
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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.
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(End)                         T. Sodroski [SSDOO/ADC]                24-Jul-2000