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J/A+A/476/89        HII galaxies narrow-band Hbeta images         (Lagos+, 2007)
Narrow-band Hβ images of star-formation regions in HII galaxies.
    Lagos P., Telles E., Melnick J.
   <Astron. Astrophys., 476, 89-96 (2007)>
   =2007A&A...476...89L
ADC_Keywords: Galaxies, photometry ; H II regions ; Photometry, H-beta

Keywords: catalogs - galaxies: dwarf - galaxies: photometry - galaxies: ISM -
          galaxies: fundamental parameters

Abstract:
    Our aims is to create a catalog of images of HII galaxies and their
    individual star-formation regions in order to study the distribution
    of the gas emission and their underlying stellar continuum.
    We have used Hβ narrow-band images of 43 selected HII galaxies
    obtained at ESO NTT 3.58m telescope using the SUSI2 camera.
    Surface photometric Hβ fluxes and equivalent widths for all
    objects and star-formation regions are presented in this catalog.

Description:
    The data presented in this work were obtained on March 14, 2002 and
    March 30-April 01, 2003 at the ESO NTT 3.58m telescope in La Silla
    Chile, using the SUSI2 (Superb Seeing Imager-2) camera.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        87       43  *Sample and log of observation
table3.dat        58      119   Observed properties of the sample

Note on table1.dat: Tol 1457-262ab and Tol 1457-262ce have the corrected
     values (in error in the published paper), given by the author.


See also:
 J/A+AS/91/285   : HII galaxies spectrophotometric catalogue (Terlevich+, 1991)
 J/A+A/423/133   : Spectral indexes in HII galaxies (Westera+, 2004)
 J/ApJS/153/429  : SDSS strong emission line HII galaxies (Kniazev+, 2004)
 J/MNRAS/365/454 : Emission line analysis of HII galaxies (Hoyos+, 2006)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units      Label     Explanations

   1-  2  I2    ---        Seq       Sequential number of the galaxy
   4- 20  A17   ---        Gal       Galaxy name
  22- 23  I2    h          RAh       Right ascension (J2000)
  25- 26  I2    min        RAm       Right ascension (J2000)
  28- 31  F4.1  s          RAs       Right ascension (J2000)
      33  A1    ---        DE-       Declination sign (J2000)
  34- 35  I2    deg        DEd       Declination (J2000)
  37- 38  I2    arcmin     DEm       Declination (J2000)
  40- 41  I2    arcsec     DEs       Declination (J2000)
  43- 48  F6.4  ---        z         Redshift from NED
  50- 52  I3    ---        Filt      Filter number (1)
  54- 58  A5    ---        ExpTime1  Exposure Time in Hbeta Narrow-Band (in s)
      59  A1    ---        ---       [-]
  60- 64  A5    ---        ExpTime2  Exposure Time in Continuum (in s)
  66- 75  A10 "YYYY/DD/MM" Date      Observation date
      76  A1    ---        ---       [,]
  77- 78  I2    ---        Date2     ? Second day of observation
  81- 83  F3.1  ---        Seeing    Seeing to each observation (2)
      84  A1    ---        ---       [-]
  85- 87  F3.1  ---        Seeing2   ? Seeing for Date2 observation

Note (1): Filters characteristics:
     --------------------------------------------------------
     Filter   lambdac  FWHM  Transmission  Kλ
                                   %
     --------------------------------------------------------
      548     4924.15    52.14   67.22       0.137
      719     4898.24    51.62   78.04       0.140
      880     4693.51    76.44   72.20       0.161
      881     4864.38    66.68   83.23       0.147
      882     5009.84    72.44   86.12       0.129
     --------------------------------------------------------
         where Kλ is the extinction coefficient
Note (2): Measured as the FWHM of stellar images



Byte-by-byte Description of file: table3.dat

   Bytes Format Units      Label   Explanations

   1-  2  I2    ---        Seq     Sequential number of the galaxy
   4- 20  A17   ---        Gal     Galaxy name
      21  I1    ---        m_Gal   ? Region number, indicated in Fig. 4 (1)
  23- 27  F5.2  10-17W/m2  FHbeta  Observed Hβ flux
  29- 32  F4.2  10-17W/m2 e_FHbeta  rms uncertainty on Hbeta
  34- 38  F5.2  [10-7W]    LHbeta  Log of Hβ luminosity
  40- 42  I3    0.1nm      EWHb    Hβ equivalent width
  44- 47  A4    ---        MType   Morphologycal classification given by
                                   Loose & Thuan (1986ApJ...309...59L)
      49  A1    ---        ---     [-]
  51- 52  A2    ---        MType2  Morphological classification given by
                                   Telles et al. (1997MNRAS.288...78T)
  54- 57  F4.2  ---        cHb     ? Extinction coefficient used in this work
      58  A1    ---        r_cHb   [abcde] Reference for cHb (2)

Note (1): Nomenclature note:
     Regions are identified as
     [LTM2007] Gal m_Gal, ([LTM2007] Tol0505-387 N as example)
     When no m_Gal number, the data are those of the galaxy.
Note (2): References as follows:
      a = Kehrig et al. (2004AJ....128.1141K)
      b = Pena et al. (1991A&A...251..417P)
      c = Terlevich et al. (1991, Cat. J/A+AS/91/285)
      d = Telles et al. (2001ApJ...548..671T)
      e = Telles et al. (1997MNRAS.288...78T)


History:
    From electronic version of the journal
(End)                                      Patricia Vannier [CDS]    31-Dec-2007