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J/ApJS/101/287         H II Regions in Seyfert galaxies. I. (Tsvetanov+ 1995)
H II region populations in Seyfert galaxies. I. Database
     Tsvetanov Z.I., Petrosian A.R.
    <Astrophys. J. Suppl. Ser. 101, 287 (1995)>
    =1995ApJS..101..287T
ADC_Keywords: Galaxies, Seyfert ; H II regions

Keywords: galaxies: Seyfert - H II regions - surveys


Abstract:
    Data on  positions, effective diameters,  and absolute fluxes  of H II
    regions  on 21 Seyfert spiral galaxies are presented together with the
    Hα + [N II] images  and identification  charts. The  objects are
    selected from a larger  emission-line  survey  of  a  distance-limited
    sample  of southern Seyfert galaxies. Statistical analysis of the data
    as well as discussion and comparison of the H II region populations in
    Seyfert and normal galaxies will be presented in forthcoming papers.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
galaxies.dat      82       21   Basic characteristics of the sample galaxies
                                 (table 2)
hii.dat           46     3186   H II regions catalog


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

   Bytes Format  Units   Label     Explanations

   1- 12  A12    ---     Galaxy   *Galaxy name
  15- 16  I2     h       RAh       Right ascension (1950)
  18- 19  I2     min     RAm       Right ascension (1950)
  21- 25  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- 42  A3     ---     AGN       AGN type (Seyfert number, or SB=starburst)
  44- 55  A12    ---     MType     Morphological type
  57- 61  I5     km/s    cz        Velocity
  63- 68  F6.2   mag     Bmag      B-band magnitude
  70- 73  I4     ---     HII       Number of H II regions
  75- 82  A8     ---     Name      Name of galaxy, as in file "hii.dat"

Note on Galaxy: the second NGC 4507 is 4593, corrected on 13-Nov-1996



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

   Bytes Format Units   Label     Explanations

   1-  8  A8    ---     Name      Galaxy name
  11- 13  I3    ---     Seq       Sequence number of H II region in galaxy
  15- 22  F8.3  arcsec  X        *X offset of H II region
  24- 31  F8.3  arcsec  Y        *Y offset of H II region
  33- 37  F5.2  arcsec  Deff      Effective diameter of the H II region
  39- 46  E8.2  mW/m2   Flux      Halpha+[N II] flux of the H II region

Note on X, Y:
  The X,Y positions of the H II regions. The coordinate systems are
  centered on the nuclei of the galaxies, which are determined as the
  brightest point in Halpha. The X-axis is along the east-west
  direction, with negative values to the east, and the Y-axis is along
  the north-south direction, with negative values to the south.


Origin: AAS CD-ROM series, Volume 6, 1996           Lee Brotzman [ADS] 23-Apr-96

(End)                                                         [CDS]  06-Sep-1996