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II/300              JMMC Stellar Diameters Catalogue - JSDC  (Lafrasse+, 2010)

An all-sky catalogue of computed star diameters using the SearchCal webservice. Lafrasse S., Mella G., Bonneau D., Duvert G., Delfosse X., 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 ( "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. Conversely, the rejection of binaries depends on their availability as such in the relevant catalogues. 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) : 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/311) 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) 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 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) Acknowledgements: This research has made use of the JSDC Jean-Marie Mariotti Center database, available at 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 and
(End) Patricia Vannier [CDS] 10-Jun-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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