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J/ApJS/105/93       H II Regions in Nearby Seyfert Galaxies (Evans+ 1996)
An Atlas of H II Regions in Nearby Seyfert Galaxies
    Evans I.N., Koratkar A.P., Storchi-Bergmann T., Kirkpatrick H.,
    Heckman T.M., Wilson A.S.
   <Astrophys. J. Suppl. Ser. 105, 93 (1996)>
   =1996ApJS..105...93E      (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, Seyfert ; H II regions

Keywords: atlases - galaxies: Seyfert - H II regions


Abstract:
    Continuum-subtracted Halpha images of 17 nearby Seyfert galaxies are
    presented. The images are calibrated astrometrically using the Hubble
    Space Telescope Guide Star Catalog reference frame. For each galaxy,
    an inventory of H II regions detected using the COSMOS image
    classifier and centroider is provided. Salient features of each galaxy
    are described, including the distribution of the H II regions with
    reference to the galaxy morphology. Relevant abundance data from the
    literature are noted for each object. These images will find use as
    finding charts for follow-up spectrophotometric investigations of
    abundances, abundance gradients, and kinematics of H II regions in
    active galaxies, and for detailed studies of H II region populations
    in these objects.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat        72     2608   Inventory H II regions


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label     Explanations

   1-  8  A8    ---     NGC       NGC number
   9- 12  I4    ---     Num       H II region number
  15- 16  I2    h       RAh       Right ascension (J2000) (1)
  18- 19  I2    min     RAm       Right ascension (J2000) (1)
  21- 25  F5.2  s       RAs       Right ascension (J2000) (1)
      27  A1    ---     DE-       Declination sign
  28- 29  I2    deg     DEd       Declination (J2000) (1)
  31- 32  I2    arcmin  DEm       Declination (J2000) (1)
  34- 37  F4.1  arcsec  DEs       Declination (J2000) (1)
  39- 43  F5.1  arcsec2 Area      Area of the H II region image (2)
  45- 52  F8.1  ---     Total     Integrated pixel intensity (in digital number) (2)
  54- 61  F8.2  ---     Peak      Peak pixel intensity (in digital number) (2)
  63- 67  F5.2  ---     e         Ellipticity of the H II region image (2)
  69- 72  I4    deg     PA        Position angle of the H II region image (2)

Note (1): Equatorial coordinates (equinox J2000) of the H II region image center
           of gravity in the Hubble Space Telescope Guide Star Catalog reference
           frame.
Note (2): These data values are for the H II region image above the lowest
           COSMOS threshold.


Origin: AAS CD-ROM series, Volume 7, 1996           Lee Brotzman [ADS] 16-Jul-96

(End)                                                         [CDS]  10-Feb-1997