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CPSTARS: Help

CPSTARS - Ap & Am Stars General Catalog


Overview

CPSTARS is derived from data contained in the General Catalogue of Ap and Am Stars by P. Rension.

Catalog Bibcode

1991A&AS...89..429R

References

RENSON P., GERBALDI M., CATALANO F.A.
   Astron. Astrophys. Suppl. Ser. 89, 429-434 (1991)

RENSON P.
   Bull. Inf. CDS 40, 1992 (in press)

Parameters

Alt_Name
Bayer/Flamsteed name. Greek letters are coded as *AA, an asterisk followed by two letters as shown below. Note: Latin letters should be considered as lowercase letters.

         *AL=alpha           *IO=iota           *RH=rho
         *BE=beta            *KA=kappa          *SI=sigma
         *GA=gamma           *LA=lambda         *TA=tau
         *DE=delta           *MU=mu             *UP=upsilon
         *EP=epsilon         *NU=nu             *PH=phi
         *DZ=dzeta           *XI=xi             *KH=chi
         *ET=eta             *OI=omicron        *PS=psi
         *TH=theta           *PI=pi             *OE=omega
  

Bertaud
Number from Bertaud: J. Obs. 42, 45 (1959); J. Obs. 43, 129 (1960); J. Obs. 48, 211 (1965)

BII
The galactic latitude of the object.

BV_Color
B-V Color. For close double stars, this index refers to the combined light.

By_Color
B-Y color.

C1
C1 Stromgren photometric index.

Catalog_Number
CP Catalog Identification

Class
BROWSE classification flag.

Comments
Explanation of Notes

Dec
The Declination of the object.

Dec_1900
Declination in 1900 coordinates.

DM
DM Code (BD, CO, or CP) and identifier (zone + number).

Gc
GC (B. Boss) identification

Hbeta
H Beta Stromgren photometric index.

HD
HD(E) identification. A letter in the last place identifies the component in the case of double or multiple system where components have not a distinct HD number, except when the luminosity of the other components is negligible.

HR
HR (Bright Star) identification.

LII
The galactic longitude of the object.

M1
M1 Stromgren photometric index.

Name
Designation derived from the running number from the original catalog in front of the position of the source, which is in the form HHMM'+/-'DDMM.

Notes
Explanations of these notes are explained in the Comments Field.

      '*' = Note or remark of various nature, e.g. about the spectrum.
      'N' = Other designations (see also notes A, D, V)
          B for number in L. Boss's "Preliminary General Catalogue"
          W for number in Wilson's General Cat. of Stellar Radial Velocities
            (1953)
          Second DM number
      'D' = Note concerning duplicity:
          ADS (Aitken's catalogue) designation, magnitude and angular distance
          of the companion
      'A' = Note concerning clustering:
          cluster, group or association to which the star belongs, at least
          optically; star identification number(s) in the cluster or association.
      'V' = Note about variability: variable name;
          nature of the variability, if known, when it is not of the alpha CVn
          type.
      'P' = Note about the known or proposed period observed for the variations
          of:
          - the luminosity and/or colours (L)
          - the magnetic field (M)
          - the intensity of spectral lines (S)
          - the radial velocity computed from peculiar element lines. (V)
      'B' = Note about binarity:
          V.R.V. stands for Variable Radial Velocity
          P   provides the period of Spectrocopic Binaries, and
          E   the eccentricity
      'H' = Note about magnetic field:
          extreme values measured for the effective magnetic field (defined in
          Babcock, Astrophys. J. Suppl. 3, 141, 1958), followed by the number of
          measurements within brackets
      'R' = Note concerning the rotational velocity;
          value of the projected equatorial velocity (v sin i)
      'S' = Remarks concerning Stroemgren's Photometry uvbyH-beta
      'C' = Note about detection criteria, when the p or m feature is not
          confirmed with classical spectroscopy.
          Used abbreviations:
          UV  = ultraviolet spectrophotometry (satellite obs.)
          GEN = Geneva 7-colour photometry
          MTZ = H.M. Maintzen's photometry,
                Astron. Astrophys. 51, 223 (1976)
  

Prob_Flag
Indication of the probability that the star belongs to the considered category:

      /  denotes a star improperly considered Ap or Am
      ?  doubtful nature
      *  well-known Ap or Am star
      ' '   other cases
  

RA
The Right Ascension of the object.

RA_1900
Right Ascension in 1900 coordinates.

Spect_Type
Spectral classification. A dash in third column indicates an Am star; this dash separates the spectral type deduced from the K line and the spectral type deduded from the metallic lines; delta Del-type stars are classified as Am, and marked with DD. Another character in same column means an Ap star, and the spectrum is followed by the symbols of the elements with abnormal abundances. ("HE FBL." means "He-weak".) See also the "*" in Notes and the corresponding Comments.

UB_Color
U-B Color. For close double stars, this index refers to the combined light.

Vmag
Magnitude (generally V). For close double stars, this magnitude was corrected from the companion's luminosity.


Contact Person

Questions regarding the CPSTARS database table can be addressed to the HEASARC User Hotline.
If you have any problems, please consult the help page or mail ledas-help@star.le.ac.uk
 
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