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J/PAZh/25/18  Spectroscopy of Hα blue stars in M 33  (Sholukhova+, 1999)
Spectroscopy of Hα-emission-line blue stars in M 33.
    Sholukhova O.N., Fabrika S.N., Vlasyuk V.V.
   <Pis'ma Astron. Zh. 25, 18 (1999)>
   =1999PAZh...25...18S
   =1999AstL...25...14S
ADC_Keywords: Stars, blue ; Spectroscopy


Abstract:
    Multiobject spectroscopy for 118 blue stars with an Hα excess in
    the galaxy M 33 from the lists of SS 433 and LBV candidates and other
    rare types of massive stars is presented. The Hα parameters and
    the relative intensities of the [NII]6584Å and [SII]6716Å lines
    are given. We identified stars with a broad Hα emission line,
    which is probably emitted in the stellar wind.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
object.dat        51      109   Object positions (from Simbad)
table1.dat        75      119   Spectroscopy of 118 stars


See also:
   J/ApJS/89/85 : Blue and red supergiants in M33 (Ivanov+ 1993)


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

   Bytes Format Units   Label     Explanations

   1-  2  I2    h       RAh       Right ascension (J2000)
   4-  5  I2    min     RAm       Right ascension (J2000)
   7- 10  F4.1  s       RAs       Right ascension (J2000)
      12  A1    ---     DE-       Declination sign (J2000)
  13- 14  I2    deg     DEd       Declination (J2000)
  16- 17  I2    arcmin  DEm       Declination (J2000)
  19- 20  I2    arcsec  DEs       Declination (J2000)
  24- 28  A5    ---     Name      Name as in table1
      30  A1    ---     ---       [=]
  31- 51  A21   ---     ONames    Other names (in Simbad format)


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

   Bytes Format  Units   Label        Explanations

   1-  5  A5     ---     Name         Star number from lists II and I (1)
   8- 21  A14    ---     Designation  ? Star designation from list I (2)
  24- 28  F5.2   mag     Vmag         ? V magnitude (3)
      29  A1     ---     u_Vmag       Uncertainty flag of Vmag
  32- 35  I4     km/s    RV           Radial velocity of Hα line
      36  A1     ---     u_RV         [:]? uncertainty of RV
  39- 42  I4     km/s    FWHM         Line width (FWHM) of the Hα line
      43  A1     ---     u_FWHM       [:]? uncertainty of FWHM
      45  A1     ---     l_EWHa       ? Limit flag on EWHa
  46- 49  I4     0.1nm   EWHa         ? Equivalent width of Hα line
      56  A1     ---  l_I[NII]/I[Ha]  ? Limit flag on I[NII]/I[H]
  57- 60  F4.2   ---    I[NII]/I[Ha]  Relative intensity [NII]6583A to Hα
      64  A1     ---  l_I[SII]/I[Ha]  ? Limit flag on I[SII]/I[H]
  65- 68  F4.2   ---    I[SII]/I[Ha]  Relative intensity [SII]6716A to Hα
      71  I1     ---     Class        Object class by Hα width (4)
  74- 75  A2     ---     MType        ? Morphology type (5)

Note (1): Origin of the numbers:
       List I : Fabrika S.N., Sholukhova O.N., 1995Ap&SS.226..229F
       List II: Fabrika S.N., Sholukhova O.N., 1997BSAO...43..149F
     Several stars have designations from Ivanov' catalogue 
        (1993, Cat. J/ApJS/89/85):
          I: blue stars (IFM-B NNNNa in Simbad),
         IR: red stars  (IFM-R NNN in Simbad)
       No. 2 to 526 are identified as FSZ NNN in Simbad
       No. L25 to L167 are identified as LMA M 33 NNN in Simbad
       No. I141 to I1430 are identified as IFM-B NNNN in Simbad
       C91, z36 to z107 are identified as CPSDP NNN in Simbad
       X-3 to X-14  are identified as [TFP88] X-NN in Simbad
Note (2): Object designations:
    Hα: stars selected during visual examination of Hα plates
           L: emission objects from Lequeux et al.(1987A&AS...67..169L)
           v: variable stars from General Catalogue of Variable Stars
               (Kholopov+ 1998, Cat. II/214);
    S,DBS,Lg: OB stars in SNRs or SNRs from Sabbadin (1979A&A....80..212S)
               D'Odorico et al.(1978A&A....63...63D),
               Long et al. (1990ApJS...72...61L)
        C,Cz: compact HII regions from Courtes et al. (1987A&A...174...28C
           X: OB stars from Markert & Rallis (1983ApJ...275..571M) and
               Trinchieri et al. (1988ApJ...325..531T);
           B: Humphreys & Sandage (1980ApJS...44..319H);
     ob,RW,W: Massey et al. (1995, Cat. J/AJ/110/2715).
Note (3): Vmag are taken from Ivanov et al. (1993, Cat. J/ApJS/89/85)

Note (4): Hα FWHM types:
       1: with a broad line (FWHM > 150 km/s)
       2: with a narrow line (FWHM < 150 km/s)
       3: with a broad line, if the spectrum quality was not high enough to
           reliable measure the profile parameter,
          or if a Gauss analysis revealed a narrow line, but its profile
           shows a characteristic feature (broad or asymetric wings, or
           P-Cyg-type wings)
Note (5): See Fabrika S.N., Sholukhova O.N., 1997BSAO...43..149F


(End)                                   Veta Avedisova [INASAN]    22-April-2000