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J/ApJS/147/61       Interstellar Ca I absorption             (Welty+, 2003)
High-resolution observations of interstellar Ca I absorption.
Implications for depletions and electron densities in diffuse clouds.
    Welty D.E., Hobbs L.M., Morton D.C.
   <Astrophys. J. Suppl. Ser. 147, 61 (2003)>
   =2003ApJS..147...61W
ADC_Keywords: Interstellar medium ; Spectroscopy

Keywords: ISM: abundances - ISM: atoms - ISM: kinematics and dynamics -
          line: profiles

Abstract:
    We present high-resolution (FWHM∼0.3-1.5km/s) spectra, obtained with
    the AAT UHRF, the McDonald Observatory 2.7m coude spectrograph, and/or
    the KPNO coude feed, of interstellar Ca I absorption toward 30
    Galactic stars. Comparisons of the column densities of Ca I, Ca II,
    K I, and other species - for individual components identified in the
    line profiles and also when integrated over entire lines of sight -
    yield information on relative electron densities and depletions
    (dependent on assumptions regarding the ionization equilibrium).

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table9.dat        72      135   Column Densities for Ca I, Ca II, Fe I, and S I
refs.dat          86       49   References


See also:
    http://astro.uchicago.edu/home/web/welty/coldens.html : 
           Catalogue of Interstellar Column Densities (Galactic)


Byte-by-byte Description of file: table9.dat

   Bytes Format Units        Label   Explanations

   1-  6  I6    ---          HD      ? HD number
   8- 22  A15   ---          Name    Name
      23  A1    ---          WH      [*] *: sight lines included in the Appendix
                                         to Welty & Hobbs (2001ApJS..133..345W)
      25  A1    ---          l_CaI   Limit flag on CaI
  26- 30  F5.2  10+8cm-2     CaI     CaI column density
      31  A1    ---          u_CaI   Uncertainty flag on CaI
  33- 35  I3    ---          r_CaI   Reference for CaI, in refs.dat file
      37  A1    ---          l_CaII  Limit flag on CaII
  38- 42  F5.2  10+8cm-2     CaII    ? CaII column density
  44- 46  I3    ---          r_CaII  ? Reference for CaII, in refs.dat file
      48  A1    ---          l_FeI   Limit flag on FeI
  49- 53  F5.2  10+8cm-2     FeI     ? FeI column density
      54  A1    ---          u_FeI   Uncertainty flag on FeI
  56- 58  I3    ---          r_FeI   ? Reference for FeI, in refs.dat file
      60  A1    ---          l_SI    Limit flag on SI
  61- 65  F5.2  10+8cm-2     SI      ? SI column density
      66  A1    ---          u_SI    Uncertainty flag on SI
  68- 70  I3    ---          r_SI    ? Reference for SI, in refs.dat file


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

   Bytes Format Units   Label     Explanations

   1-  3  I3    ---     Ref       Reference number
   5- 23  A19   ---     BibCode   BibCode
  25- 47  A23   ---     Aut       Author's name
  51- 85  A35   ---     Com       Comments


History:
    From electronic version of the journal
(End)                         James Marcout, Patricia Bauer [CDS]    31-Jul-2003