(r25) JMMCSearchCalCDSCatalogReadme < Jmmc/Software

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<verbatim>
II/300           JMMC Stellar Diameters Catalogue - JSDC  (Lafrasse+, 2010-2012)
================================================================================
An all-sky catalogue of computed star diameters using the SearchCal webservice.
    Lafrasse S., Bourges L., Mella G., Olivier C., Duvert G., Delfosse X.,
    Le Bouquin J.-B., Bonneau D., Chelli A.
   <SPIE Conf. on Astronomical Instrumentation 77344E (2010)>
   =2010SPIE.7734E.140L
================================================================================
ADC_Keywords: Stars, standard ; Interferometry ; Fundamental catalog ;
              Photometry, infrared ; Parallaxes, trigonometric; Stars, diameters
Keywords: catalogs - stars: fundamental parameters -
          instrumentation: interferometers - techniques: interferometric

Abstract:
    This catalogue contains stellar angular diameter estimate for bright
    stars, complete for all stars with Hipparcos parallaxes.

    The JMMC Calibrator Workgroup has long developed methods to estimate
    the angular diameter of stars, and provides this expertise in the
    SearchCal software (http://www.jmmc.fr/searchcal). "SearchCal" creates
    a dynamical catalogue of stars suitable to calibrate Optical
    Long-Baseline Interferometry (OLBI) observations from on-line queries
    of CDS catalogues, according to observational parameters. In essence,
    SearchCal is limited only by the completeness of the stellar
    catalogues it uses, and in particular is not limited in magnitude.
    SearchCal being an application centered on OLBI peculiar purposes, it
    appeared useful to publish the estimated angular diameters of all
    stars with known parallaxes in a static catalogue.

    The present catalogue of stellar angular diameters has been obtained
    from an automated SearchCal results aggregation on the whole celestial
    sphere. For each star, the value of the limb-darkened angular
    diameters are computed using a surface brightness method and
    calibrations for (B-V), (V-R) and (V-K) color indexes.

    Stars whose angular diameters estimated from the various color indexes
    are not comparable, are rejected, and a reliable error on the
    estimated diameter is computed (1). For details of the method see
    Bonneau et al. (2006A&A...456..789B). To avoid specific confusion
    problems, spectroscopic binaries in the 9th Catalogue of Spectroscopic
    Binary Orbits (Pourbaix et al., 2009, Cat. B/sb9) or close visual
    binaries with a separation of less than 2 arc seconds in the
    Washington Visual Double Star Catalog (Mason et al., 2001, Cat. B/wds)
    have been filtered out.

Description:
    Limb Darkened and Uniform Angular diameters are given for 38472 stars,
    extracted from the All-sky Compiled Catalogue of 2.5 million stars
    (I/280, Kharchenko et al. 2009). The limb darkened diameters are
    computed using the V magnitude and the (V-K) color index.

    The uniform disk diameters are computed for the photometric bands (B,
    V, R, I, J, H, K) using the linear limb darkened coefficients from
    (Claret & Diaz-Cordoves, 1995, Cat. J/A+AS/114/247).

    For each star, HD and Hipparcos catalog numbers, equatorial
    coordinates, parallax, spectral type, photometric data (B,V,R,J,H,K)
    and angular diameters are given.

    Additionnally, the absence of a particular star in this catalogue can
    also be due to a missing photometry in one of the base catalogues
	or high proper motion that break catalogues cross match.
    Conversely, the rejection of binaries depends on their availability as
    such in the relevant catalogues.

References:
    Bonneau, D., Clausse, J.M., Delfosse, X. et al, 2006, A&A 456, 789
    Claret, A.; Diaz-Cordoves, J.; Gimenez, A.,1995, A&A Sup. Ser., 114, 247
    Kharchenko, N. V.; Roeser, S., 2009, All-sky Compiled Catalogue of 2.5 
      million stars, VizieR On-line Data Catalog: I/280B. Originally published 
      in: 2001KFNT...17e.409K                                                         
    Mason B.D., Wycoff G.L., Hartkopf W.I., Douglass G.G., 
      Worley C.E. Astron. J., 2001, 122, 3466                                                             
    Pourbaix D., Tokovinin A.A, Batten A.H., et al., 2004, A&A 424, 272           

File Summary:
--------------------------------------------------------------------------------
 FileName   Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe         80        .   This file
jsdc.dat      189    38472   Stellar diameters catalogue
--------------------------------------------------------------------------------

See also:
          B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2010)
          B/sb9 : 9th Cat. of Spectroscopic Binary Orbits (Pourbaix+ 2004-2009)
 II/224 : Catalogue of Stellar Diameters (CADARS) (Pasinetti-Fracassini+ 2001)
 J/A+AS/114/247 : Limb-darkening coefficients for R I J H K (Claret+, 1995)
 J/A+A/393/183  : Catalogue of calibrator stars for LBSI (Borde+, 2002)
 J/A+A/433/1155 : 948 bright calibrator stars for interferometry (Merand+, 2005)
 http://www.jmmc.fr/jsdc : JSDC home page

Byte-by-byte Description of file:jsdc.dat
--------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
--------------------------------------------------------------------------------
   1- 16  A16   ---     Name      Name: "HIP" HIP number (Cat. I/280B),
                                         or "TYC" TYCHO number (Cat. I/259/tyc2)
  17- 18  I2    h       RAh       Right Ascension J2000 (hours)
  20- 21  I2    min     RAm       Right Ascension J2000 (minutes)
  23- 28  F6.3  s       RAs       Right Ascension J2000 (seconds)
      29  A1    ---     DE-       Declination J2000 (sign)
  30- 31  I2    deg     DEd       Declination J2000 (degrees)
  33- 34  I2    arcmin  DEm       Declination J2000 (minutes)
  36- 40  F5.2  arcsec  DEs       Declination J2000 (seconds)
  41- 47  F7.2  mas/yr  pmRA      Proper motion in Right Ascension
  48- 54  F7.2  mas/yr  pmDE      Proper motion in Declination
  55- 60  F6.3  ---     Bmag      Johnson B magnitude (from ASCC-2.5, I/280)
  61- 66  F6.3  ---     Vmag      Johnson V magnitude (from ASCC-2.5, I/280)
  67- 72  F6.3  ---     Rmag      Johnson R magnitude (Cat. II/7A)
      73  I1    ---   f_Rmag      [0/1] Rmag is a measurement or estimation (1)
  74- 79  F6.3  ---     Imag      Johnson I magnitude (Cat. II/7)
      80  I1    ---   f_Imag      [0/1] Imag is a measurement or estimation (1)
  81- 86  F6.3  ---     Jmag      Johnson J magnitude (Cat. II/246, II/7)
  87- 92  F6.3  ---     Hmag      Johnson H magnitude (Cat. II/246, II/7)
  93- 98  F6.3  ---     Kmag      Johnson K magnitude (Cat. II/246, II/7)
  93- 98  F6.3  ---     Nmag      Johnson N magnitude (2)
  99-104  F6.3  mas     LDD       Limb-Darkened Diameter
 105-109  F5.3  mas   e_LDD       Error on Limb-Darkened Diameter (2)
 110-115  F6.3  mas     UDDB      Uniform diameter at B band
 116-121  F6.3  mas     UDDV      Uniform diameter at V band
 122-127  F6.3  mas     UDDR      Uniform diameter at R band
 128-133  F6.3  mas     UDDI      Uniform diameter at I band
 134-139  F6.3  mas     UDDJ      Uniform diameter at J band
 140-145  F6.3  mas     UDDH      Uniform diameter at H band
 146-151  F6.3  mas     UDDK      Uniform diameter at K band
 146-151  F6.3  mas     UDDN      Uniform diameter at N band
 152-157  F6.2  mas     plx       Trigonometric parallax (from ASCC-2.5, I/280)
 158-162  F5.2  mas   e_plx       Error on Parallax (from ASCC-2.5, I/280)
 163-178  A16   ---     SpType    MK Spectral type (from ASCC-2.5, I/280)
 179-183  I5    K       Teff      Effective temperature adopted from SpType
 184-189  F6.3 [cm/s2]  logg      Surface gravity adopted from SpType
--------------------------------------------------------------------------------
Note (1): Magnitude flag as follows:
      1 = the corresponding magnitude is a measurement
      0 = the corresponding magnitude is an estimate based on the colors
          deduced from the spectral type. In this case, due to the
          discrete nature of the tables (SpType - color) used, a
          discretization appears in the diagrams using the colors (V-I)
          and (V-R)
Note (2): We provide only one error for all angular diameters, since the linear
          corrections between Uniform Disk diameters and the Limb-Darkened
          diameter lead to negligible corrections on the UDdiam errors.
--------------------------------------------------------------------------------

History:
    From Sylvain Lafrasse, Sylvain.Lafrasse(at)obs.ujf-grenoble.fr
	* 10-Jun-2010: Version 38472 stars, from http://www.jmmc.fr/jsdc
	* ??-Nov-2012: Version ????? stars, from http://www.jmmc.fr/jsdc

Acknowledgements:
    This research has made use of the JSDC Jean-Marie Mariotti Center database,
    available at http://www.jmmc.fr/jsdc

    This research has made use of the VizieR catalogue access tool, CDS,
    Strasbourg, France.
    This research has made use of the SIMBAD database, operated at CDS,
    Strasbourg, France.

    This research has made use of the TOPCAT and STILTS software, provided by
    Mark Taylor of Bristol University, England available at
    http://www.starlink.ac.uk/topcat and http://www.starlink.ac.uk/stilts
================================================================================
(End)                   Sylvain LAFRASSE  [CNRS]                     NN-MMMM-2012
</verbatim>

<hr/><br/><br/><br/>

History (v2):
   * GM: Rajout Nmag et UDDN.
   * GM: Rajout de l'ID pour le calcul de Name
   * GM: maj des auteurs + LB OC
   * Reprise du formattage de Patricia Vannier (CDS) (ou se trouvait d'ailleurs une reference bien cachée à Van Lauven, un peu trop en avance...)

TODO:
   * note (2) et description Nmag à completer 
   * ajout reference akari
   * indexes des colonnes a recalculer + nb d'enregistrement à mettre a jour.
   * voir pour le process des noms (je crois qu'il y a des HD dans le catalogue car plus prioritaires que les TYC )
   * verifier les modifs de Guillaume

History (v1):
   * GM: Suppression de la bande Q, passage des erreurs E_diam en e_diam puisque les erreurs sont de type mean error (&#963;) on parameter et pas mean error (upper limit).
   * GD: Suppression de la bande Q, ajout B, précisions sur formats RA DEC, valeurs de PPM, forcé à Johson (?) les bandes.
   * SL: Suppression des magnitudes L N M comme elles ne sont pas toutes renseignées et que l'on veut un catalogue complet (aucune cellule vide).
   * GM:  Rajout de la parallaxe et erreur sur le parallaxe, Logg, Teff et regroupement du type spectral en une seule colonne.
   * DB: Ajout de l'abstract et revue des colonnes.
   * AC: Rajout de LD et UD en début de description.
   * SL : Relecture générale, uniformisation et corrections de typo.
   * DB: Ajout dans les "Notes" d'une phrase au sujet de la discrétisation conséquence du mode d'estimation des magnitudes R et I.
   * GD: Nouvelles valeurs des formats et offsets en byte corrects!
   * SL: Mise en forme.
   * GD: Mise à jour de la description de la table pour le passage du type spectral de 14 à 16 caractères.
   * SL: Ajout de 2 phrases sur la complétude éliminant certaine sources faute de valeurs manquantes, et sur l'éventuelle présence de sources problématiques non filtrées.
   * SL: Ajout des acknowledgements.
   * GD: déplacement du paragraphe sur les étoiles absentes en note 1 (texte modifié aussi), et décalage de la numérotation des notes.
   * SL: Mise en conformité des header et footer, ajout des statistiques, mise à 80 colonnes, correction des unités du DEC.
   * SL: Ajout de Main.XavierDelfosse comme co-auteur.
   * GM: Ajout d'une reference vers l'url jsdc du site JMMC + mise en forme see also
   * GD: Passage nom à 16 Char, et recalcul des offsets en bytes.
   * GM: passage a 80 caracteres ( description des magnitudes, Teff et logg raccourcies ), mise a jour du nombre d'etoiles suite à la suppression manuelle des wdc et sbc9, passage du nom du fichier .dat en minuscule, passage des unites de pmRA, pmDEC, DEm et DEs en mas/yr, mas/yr, arcmin et arcsec, suppression de la ligne FileName dans le File summary, modification de l'acknowledgment en rajoutant jsdc et modifiant topcat/stilts pour des questions de processing cote CDS, decalage de l'ancienne note 1 dans la description.


Historique des versions mises en ligne:
   * [[%ATTACHURL%/ReadMe.1.txt][ReadMe.1.txt]]: 1ere version soumise sur ftp
   * [[%ATTACHURL%/ReadMe.2.txt][ReadMe.2.txt]]: 1ere version publique
Attachments
Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
txt	ReadMe.1.txt	r1	manage	8.6 K	2012-09-17 - 12:32	GuillaumeMella	1ere version soumise sur ftp
txt	ReadMe.2.txt	r1	manage	8.4 K	2012-09-17 - 12:32	GuillaumeMella	1ere version publique
Topic revision: r25 - 2012-09-17 - GuillaumeMella