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J/A+A/547/A62        A catalogue of Paschen-line profiles        (Huang+, 2012)
A catalogue of Paschen-line profiles in standard stars.
    Huang W., Wallerstein G., Stone M.
   <Astron. Astrophys. 547, A62 (2012)>
   =2012A&A...547A..62H
ADC_Keywords: Atlases ; Line Profiles; Stars, early-type ; Stars, late-type

Keywords: atlases ; line: profiles ; stars: early-type ; stars: late-type


Abstract:
    We have assembled an atlas of line profiles of the Paschen Delta
    (P-δ) line at 10049Å for the use of stellar modelling. For a
    few stars we have substituted the Paschen Gamma (P-γ) line at
    10938Å because the P-δ line blends with other features. Most of
    the targets are standard stars of spectral types from B to M. A few
    metal-poor stars have been included. For many of the stars we have
    also observed the Hydrogen Alpha (H-α) line so as to compare the
    profiles of lines originating from the meta-stable n=2 level with
    lines originating from the n=3 level. The greatest difference in line
    profile is found for high luminosity and cool stars where the
    departures from LTE in the population of the n=2 level is expected to
    be the greatest. For a few stars, sample line profiles have been
    calculated in the LTE approximation to demonstrate the usefulness of
    the tabulated and displayed catalogue.

Description:
    This catalogue contains spectroscopic data of 90 stars. A wide variety
    of stars were observed at H-α and at P-δ. A few stars were
    observed at P-γ. Most of the data were obtained at the Dominion
    Astrophysical Observatory (DAO). The remainder of the data were
    obtained at the Apache Point Observatory.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
standard.dat      62       76   List of standard stars observed
metalp.dat        60       15   List of metal-poor stars observed
standard/*         0      128   FITS files with spectrum of standard stars
metalp/*           0       15   FITS files with spectrum of metal-poor stars


See also:

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


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

   Bytes Format Units  Label     Explanations

   1-  6  I6    ---    HD        HD designation of star
   8- 17  A10   ---    SpType    MK spectral type
  20- 24  F5.2  [-]    [Fe/H]    ?=- Metallicity
  26- 37  A12   ---    H-Files   Names of files with observed H-α spectra
                                  in subdirectory standard (1)
  38- 49  A12   ---    Pd-Files  Names of files with observed P-δ spectra
                                  in subdirectory standard (1)
  51- 62  A12   ---    Pg-Files  Names of files with observed P-γ spectra
                                  in subdirectory standard (1)

Note (1): Where applicable, file names begin with HD designation and are
     followed by an "h", "pd", "pg", or "e" which indicate H-α,
     P-δ, P-γ, or echelle, respectively.


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

   Bytes Format Units  Label    Explanations

   1-  6  I6    ---    HD       ? HD designation of star
   8- 17  A10   ---    BD       BD designation of star
  20- 26  A7    ---    SpType   MK spectral type
  28- 32  F5.2  [-]    [Fe/H]   Metallicity
  35- 46  A12   ---    H-Files  Names of files with observed H-α spectra
                                 in subdirectory metalp (1)
  49- 60  A12   ---   Pd-Files  Names of files with observed P-δ spectra
                                 in subdirectory metalp (1)

Note (1): Where applicable, file names begin with HD designation and are
     followed by an "e" which indicates echelle.


Acknowledgements:
    Myra Stone, myrastone0(at)gmail.com
(End)                                        Patricia Vannier [CDS]  10-Sep-2012