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J/AJ/110/1032       APM elliptical galaxies radial velocities (Muriel+ 1995)
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The luminosity function of elliptical galaxies
     Muriel H., Nicotra M.A., Lambas D.G.
    <Astron. J. 110, 1032 (1995)>
    =1995AJ....110.1032M      (SIMBAD/NED BibCode)
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ADC_Keywords: Galaxies, photometry ; Radial velocities

Abstract:
    We present 292 new redshifts of elliptical galaxies selected from the
    APM Bright Galaxy Survey. We use these data together with published
    redshifts and bj apparent magnitudes from the APM Bright Galaxy Survey
    in order to estimate the shape of the Luminosity Function of a total
    sample of 535 ellipticals. We use the Maximum Likelihood method for
    the determination of the best fitting parameters {alpha} and M^*^ of a
    Schechter Function. In order to provide tests for systematics and
    suitable error estimates we apply Monte Carlo techniques which are
    also used to deal with incompleteness effects in the data. In
    agreement with other authors our results indicate a relative lack of
    low luminosity ellipticals compared to other morphological types. The
    best fitting shape parameters derived are {alpha}=0.20+/-0.25 and
    M^*^_Bj_=-20.0+/-0.3. We do not find evidence for a dependence of
    these parameters on environment.

File Summary:
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  FileName      Lrecl  Records   Explanations
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ReadMe             80        .   This file
table1.dat         33      292   New radial velocities of APM Bright Galaxies
                                 Survey (APMBGS) ellipticals
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See also:
      J/MNRAS/278/1025 : The APM Bright Galaxy Catalogue (Loveday 1996)

Byte-by-byte Description of file: table1.dat
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   Bytes Format Units   Label     Explanations
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   1-  2  I2    h       RAh       Right ascension (J2000)
   4-  5  I2    min     RAm       Right ascension (J2000)
   7- 10  F4.1  s       RAs       Right ascension (J2000)
      12  A1    ---     DE-       Declination sign
  13- 14  I2    deg     DEd       Declination (J2000)
  16- 17  I2    arcmin  DEm       Declination (J2000)
  19- 22  F4.1  arcsec  DEs       Declination (J2000)
  24- 27  F4.1  mag     bJmag     bJ magnitude
  29- 33  I5    km/s    RV        Radial velocity
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History: Prepared via OCR at CDS.
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(End)                           James Marcout, Patricia Bauer [CDS]  07-Apr-1997