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J/A+AS/137/495      Halpha Catalogue of HCG Galaxies       (Severgnini+, 1999)
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An H{alpha} catalogue of galaxies in Hickson Compact Groups. I. The Sample
       Severgini P., Garilli B., Saracco P., Chincarini G.
      <Astron. Astrophys. Suppl. Ser. 137, 495 (1999)>
      =1999A&AS..137..495S      (SIMBAD/NED BibCode)
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ADC_Keywords: Galaxies, photometry ; Photometry, H-alpha
Keywords: galaxies: clusters: general - galaxies: evolution -
          galaxies: interaction

Abstract:
    We present H{alpha} photometry for a sample of 95 galaxies in Hickson
    Compact Groups (Cat. <VII/213>) obtained from observations of 31
    groups. The Catalogue lists isophotal and adaptive aperture (Kron
    aperture) flux measurements for about 75% of the accordant galaxies
    inside the observed HCGs, 22 out of which are upper limits. Non
    standard data reduction procedures have been used to obtain the
    continuum subtracted H{alpha} images for each HCG of the target
    sample. Flux calibration has also been performed in order to obtain
    H{alpha} luminosities for the whole sample. Both the data reduction
    and calibration procedures are carefully described in the paper.

File Summary:
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  FileName      Lrecl  Records   Explanations
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ReadMe             80        .   This file
galaxies.dat       27       73   Galaxy positions
table7.dat         70       73   H{alpha} isophotal Fluxes and Luminosities
table8.dat         47       73   Isophotal corrected and Kron fluxes
table9.dat         41       22   Upper limits to flux and luminosity
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See also:
    VII/213 : Hickson Compact Groups of Galaxies (Hickson 1982)

Byte-by-byte Description of file: galaxies.dat
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   Bytes Format Units   Label     Explanations
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   1-  3  A3    ---     HCG       Hickson galaxy designation
   5-  6  I2    h       RAh       Right ascension (J2000.0)
   8-  9  I2    min     RAm       Right ascension (J2000.0)
  11- 14  F4.1  s       RAs       Right ascension (J2000.0)
      16  A1    ---     DE-       Declination sign (J2000.0)
  17- 18  I2    deg     DEd       Declination (J2000.0)
  20- 21  I2    arcmin  DEm       Declination (J2000.0)
  23- 24  I2    arcsec  DEs       Declination (J2000.0)
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Byte-by-byte Description of file: table7.dat
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   Bytes Format Units        Label   Explanations
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   2-  4  A3    ---          HCG     Hickson galaxy designation
   7- 10  F4.2 10-13mW/m2    F1      Flux uncorrected for galactic and
                                      internal extinction
  13- 16  F4.2 10-14mW/m2  e_F1      Error on F1
  19- 25  F7.2 10+31W        L1      Luminosity uncorrected for galactic and
                                      internal extinction (10^38^erg/s)
  28- 33  F6.2 10+31W      e_L1      Error on L1
  36- 39  F4.2 10-13mW/m2    F2      Flux corrected for galactic extinction
  42- 45  F4.2 10-14mW/m2  e_F2      Error on F2
  48- 52  F5.2 10-13mW/m2    F3      Flux corrected for Galactic and
                                      internal extinction (1)
  55- 61  F7.2 arcsec+2      Area    Isophotal area
  64- 70  F7.2  ---          S/N     Signal to noise ratio
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Note (1): Values of -1.00 indicate that the galaxies is not a spiral galaxy and
           the value of F3 is not needed for it
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Byte-by-byte Description of file: table8.dat
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   Bytes Format  Units         Label    Explanations
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   1-  3  A3    ---            HCG      Hickson galaxy designation
  12- 16  F5.3  10-13mW/m2     Fisocor  Isophotal corrected flux
  23- 27  F5.3  10-14mW/m2   e_Fisocor  Error on fisocor
  31- 36  F6.3  10-13mW/m2     Fkron    ?=-1.00 Kron flux
  42- 47  F6.3  10-14mW/m2   e_Fkron    ?=-1.00 Error on fkron
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Byte-by-byte Description of file: table9.dat
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   Bytes Format Units          Label     Explanations
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   1-  3  A3    ---            HCG       Hickson galaxy designation
  10- 17  F8.6  10-13mW/m2     Fup       Flux at 3{sigma} from bkg
  20- 25  F6.4  10-14mW/m2   e_Fup       Error on Fup
  29- 33  F5.2  10+31W         Lup       Luminosity at 3{sigma}
  38- 41  F4.1  10+31W       e_Lup       Error on Lup
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Acknowledgements: Paola Severgnini <paolas@arcetri.astro.it>
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(End)                                         Patricia Bauer [CDS]   18-May-1999