Astronomical Data Center

ADCADC/CDS Standard Document for Catalog:
/catalogs/3/3089/

The following is the "ReadMe" document that describes this ADC catalog. You can access the files described here in three ways:

1. Use the ADC Data Viewer Suite to visualize the data. [preview
2. Get the data files via anonymous FTP. (See Note.) [ftp


III/89              Stellar Spectrophotometry               (Adelman+ 1989)
================================================================================
A Catalog of Stellar Spectrophotometric Data
     Adelman S.J., Pyper D.M., Shore S.N., White R.E., Warren W.H.
    <Astron. Astrophys. Suppl. Ser. 81, 221 (1989)>
    =1989A&AS...81..221A
================================================================================
ADC_Keywords: Spectrophotometry

Description:
    The catalog is a collection of spectrophotometric measurements
    obtained with rotating grating scanners attached to various telescopes
    at the Kitt Peak National, Mount Wilson, and Palomar Observatories.
    The observations were made during the 1970s and early 1980s, both
    individually and jointly, by S.J. Adelman, D.M. Pyper, S.N. Shore, and
    R.E. White. All measurements were calibrated with the fluxes of Alpha
    Lyrae (Vega) as presented by Hayes and Latham (1975ApJ...197..593H).
    There are 1134 observations concerning 207 individual stars.

File Summary:
--------------------------------------------------------------------------------
 FileName  Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe        80        .   This file
stars.dat    112     1134   List of all observations
refs.dat      80       76   List of papers referenced
data.dat      70     9492   File containing all spectra and headers
text.txt      80      311   Original Description of catalog.dat
adc.doc       79      339   Original ADC Documentation of data.dat and text.txt
adc.tex       80      358   LaTeX version of adc.doc
adc.sty       78       68   Style file to process adc.tex
--------------------------------------------------------------------------------

Byte-by-byte Description of file: stars.dat
--------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
--------------------------------------------------------------------------------
   1-  2  I2    h       RAh       Right Ascension 2000 (hours) (1)
   4-  5  I2    min     RAm       Right Ascension 2000 (minutes) (1)
   7- 10  F4.1  s       RAs       Right Ascension 2000 (seconds) (1)
      12  A1    ---     DE-       Declination 2000 (sign) (1)
  13- 14  I2    deg     DEd       Declination 2000 (degrees) (1)
  16- 17  I2    arcmin  DEm       Declination 2000 (minutes) (1)
  19- 20  I2    arcsec  DEs       Declination 2000 (seconds) (1)
  23- 30  A8    ---     Name      Star name
  31- 40  A10   ---     HD/BD     HD or BD Designation
  42- 45  I4    ---     HR        [1/9110]? HR (Bright Star) Designation
      46  A1    ---     m_HR      Component designation
  48- 52  F5.2  mag     B-V       ? Colour index
  54- 76  A23   ---     SpType    Spectral Type and comments
  78- 79  I2    0.1nm   BW        Bandwidth (in the second order)
  81- 82  I2    ---     Paper     [1/26]? Paper number detailed in file refs.dat
                                   (unknown only for star Lam Cnc #391)
  84- 85  I2    ---     NS        Number of separate scans included in the
                                        average spectrum
  87-101  F15.7 d       HJD       ? Heliocentric Julian Date of Observation
                                    (for variables)
 104-105  I2    ---     NWL       [1/50] Number of data points in data.dat (2)
 108-112  F5.3  mag     m5000     ? Magnitude at 500nm
--------------------------------------------------------------------------------
Note (1): Positions from SIMBAD, added at CDS.
Note (2): Each data point consists in a pair of
          wavelength value (in Angstroems) and
          normalized magnitude (normalized to m(5000A) = 0)
--------------------------------------------------------------------------------

Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
 Bytes Format Units   Label   Explanations
--------------------------------------------------------------------------------
 1-  2  I2    ---     Paper   [1/36]+= Paper number, repated for several lines
 4- 80  A77   ---     Text    Text of reference, starting by the bibcode when
                               the paper was effectively published
--------------------------------------------------------------------------------

Description of file: data.dat

    This file, more completely described in the "adc.doc" document,
    contains all spectrophotometric observations. Each observation is
    preceded by a set of two header records giving the same information as
    what is contained in file "stars.dat". The observations are presented
    as data pairs with wavelength (in Angstroems) and the normalized
    magnitude (to 5000Angstroems) at that wavelength. The number of data
    pairs in a spectrum varies depending on the instrument used and the
    range, but the number of pairs is given in the second header record in
    bytes 52-53. Thus, a spectrum can be read with the following FORTRAN
    statements:

      character*10 name
      real*4 lam(50),mag(50)
      read(5,'(9X,A10)') name
      read(5,'(51X,I2)') nwl
      read(5,'(5(F7.0,F7.3))') (lam(i),mag(i),i=1,nwl)

    Note: Differences from published values of 0.001 magnitude may result
    from different ways of rounding off. Some scans of possible values are
    given, while only the averages have been previously published.

    Note on Beta Lyrae Data (spectra 918 to 922): for the three nights for
    which the scans cover the spectral region 3300-7102 Angstroms, nine
    scans of the standard stars 58 Aql (1), 29 Psc (1), HD 15318 (4), and
    Eta Hya (3) were obtained on each night. For the other two nights,
    spectrophotometric standards using the values of Breger (see Cat.
    <III/48>), as supplemented by Taylor, were used. These scans were
    obtained on the same nights as the data in Papers 14 and 21.

History:
  * January 1990, Wayne H. Warren (from "adc.doc" file):
    The text and data files were prepared initially at The Citadel by
    S. J. Adelman following discussions about an acceptable structure
    and format for the catalog. Proofreading was done with the assistance
    of Carol J. Adelman and Jeffrey A. Garret. The data were transferred
    to the Astronomical Data Center via BITnet. Extensive checks of the
    header records resulted in minor corrections and changes, e.g., to
    correct shifted data and to insert mixed case characters where
    appropriate.
  * May 1998, F. Ochsenbein:
    the files "stars.dat" and "refs.dat" have been created from the
    "data.dat" headers and the "text.txt" file. The positions were
    extracted from the SIMBAD data-base.

================================================================================
(End)                        Francois Ochsenbein [CDS]               06-May-1998

Go to ADC Home Page