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J/A+A/542/A95       9 Sgr spectra 1999-2011                  (Rauw+, 2012)
9 Sgr: uncovering an O-type spectroscopic binary with an 8.6 year period.
    Rauw G., Sana H., Spano M., Gosset E., Mahy L., De Becker M., Eenens P.
   <Astron. Astrophys. 542, A95 (2012)>
   =2012A&A...542A..95R
ADC_Keywords: Binaries, spectroscopic ; Spectroscopy

Keywords: stars: early-type - binaries: spectroscopic -
          stars: fundamental parameters - stars: massive -
          stars: individual: 9 Sgr

Abstract:
    The O-type object 9 Sgr is a well-known synchrotron radio emitter.
    This feature is usually attributed to colliding-wind binary systems,
    but 9 Sgr was long considered a single star.

    We have conducted a long-term spectroscopic monitoring of this star to
    investigate its multiplicity and search for evidence for wind-wind
    interactions.

Description:
    The best quality wavelength-calibrated and normalized spectra of 9 Sgr
    are provided. These data were obtained with the FEROS, UVES and
    Coralie spectrographs. The wavelengths are given in the heliocentric
    frame of reference.
Objects:
    ----------------------------------------------
       RA   (2000)   DE        Designation(s)
    ----------------------------------------------
    18 03 52.44  -24 21 38.6   9 Sgr = HD 164794
    ----------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
files.dat         44       67   List of spectra
sp/*              25       67   Individual spectra


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

   Bytes Format Units   Label     Explanations

   1- 12  A12   ---     FileName  Name of the spectrum file in subdirectory sp
  14- 26  F13.5 d       HJD       Observation date of the spectrum
  28- 34  A7    ---     Inst      Instrument used
  36- 44  A9    ---     Com       Comments (blue or red part)


Byte-by-byte Description of file: sp/*

   Bytes Format Units   Label     Explanations

   3- 13  E11.5 0.1nm   lambda    [3769/6867] Wavelength
  15- 25  E11.5 --      Flux      Normalized flux


Acknowledgements:
    Gregor Rauw, rauw(at)astro.ulg.ac.be
(End)   Gregor Rauw [Liege University], Patricia Vannier [CDS]       01-Jun-2012