The JMMC Stellar Diameters Catalogue - JSDC (Lafrasse+, 2012)
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An all-sky catalogue of computed star diameters using the SearchCal webservice. 
Lafrasse S., Mella G., Bonneau D., Duvert G., Delfosse X. & Chelli A.           
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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. (2006). To avoid    
specific confusion problems, spectroscopic binaries in the 9th Catalogue of    
Spectroscopic Binary Orbits (Pourbaix et al.2009) or close visual binaries with
a separation of less than 2 arc seconds in the Washington Visual Double Star   
Catalog (Mason et al. 2001+) 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/280B/ascc,          
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).                                                            
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. Conversely, the      
rejection of binaries depends on their availabilty 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:
ReadMe           80        .   This file   
jsdc.dat        189    38472   Stellar Diameters Catalogue

See also:
http://www.jmmc.fr/jsdc : JSDC home page
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)
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2010)
B/sb9 : 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+2004-2009)

Byte-by-byte Description of file: jsdc.dat
  Bytes  Format  Units   Label        Explanations
   1-16     A16  ---     ---          Name: "HIP"+HIP number (Cat. I/280B),
                                         "HD"+HD number (Cat. III/135A)
                                         or "TYC"+TYCHO number (Cat. I/259/tyc2)
  17-18      I2  h       RAh          Right Ascension J2000 (hours)
     19      A1  ---     ---          ASCII space
  20-21      I2  min     RAm          Right Ascension J2000 (minutes)
     22      A1  ---     ---          ASCII space
  23-28    F6.3  s       RAs          Right Ascension J2000 (seconds)
     29      A1  ---     DE-          Declination J2000 (sign)
  30-31      I2  deg     DEd          Declination J2000 (degrees)
     32      A1  ---     ---          ASCII space
  33-34      I2  arcmin  DEm          Declination J2000 (minutes)
     35      A1  ---     ---          ASCII space
  36-40    F5.2  arcsec  DEs          Declination J2000 (seconds)
  41-47    F7.2  mas/yr  pmRA         Proper motion in Right Ascension (mas/yr)
  48-54    F7.2  mas/yr  pmDEC        Proper motion in Declination (mas/yr)
  55-60    F6.3  ---     Bmag         Johnson B magnitude (Cat. I/280B)
  61-66    F6.3  ---     Vmag         Johnson V magnitude (Cat. I/280B)
  67-72    F6.3  ---     Rmag         Johnson R magnitude (Cat. II/7A)
     73      I1  ---     f_Rmag       [0/1] Flag on Rmag value (1)
  74-79    F6.3  ---     Imag         I  Johnson  magnitude (Cat. II/7A)
     80      I1  ---     f_Imag       [0/1] Flag on Imag value (1)
  81-86    F6.3  ---     Jmag         Johnson J magnitude (Cat. II/246, II/7A)
  87-92    F6.3  ---     Hmag         Johnson H magnitude (Cat. II/246, II/7A)
  93-98    F6.3  ---     Kmag         Johnson K magnitude (Cat. II/246, II/7A)
  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          Parallax (Cat. I/280B)
158-162    F5.2  mas     e_plx        Error on Parallax (Cat. I/280B)
163-178     A16  ---     SpType       Spectral type (Cat. I/280B)
179-183      I5  K       Teff_SpType  Effective temperature adopted from SpType
184-189    F6.3  cm/s2   logg_Sptype  Gravity adopted from SpType

Note (1): Magnitude flag:
    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.

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
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(End)                   Sylvain LAFRASSE  [CNRS]                     18-May-2010

History (v2):

• GM: Rajout Nmag et UDDN.
• GM: Rajout de l'ID pour le calcul de Name

TODO:

• note (2) et description Nmag à completer
• ajout reference akari
• maj des auteurs + LB OC
• 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 (σ) 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 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.