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Building the 'JMMC Stellar Diameters Catalog' using SearchCal

Authors :
Lafrasse, Sylvain
Mella, Guillaume
Bonneau, Daniel
Duvert, Gilles
Delfosse, Xavier
Chesneau, Olivier
Chelli, Alain
Publication Year :
2010

Abstract

The JMMC Calibrator Workgroup has long developed methods to ascertain the angular diameter of stars, and provides this expertise in the SearchCal software. SearchCal dynamically finds calibrators near science objects by querying CDS hosted catalogs according to observational parameters. Initially limited to bright objects (K magnitude </- 5.5), it has been upgraded with a new method providing calibrators without any magnitude limit but those of queried catalogs. We introduce here a new static catalog of stellar diameters, containing more than 38000 entries, obtained from SearchCal results aggregation on the whole celestial sphere, complete for all stars with HIPPARCOS parallaxes. We detail the methods and tools used to produce and study this catalog, and compare the static catalog approach with the dynamical querying provided by SearchCal engine. We also introduce a new Virtual Observatory service, enabling the reporting of, and querying about, stars flagged as "bad calibrators" by astronomers, adding this ever-growing database to our SearchCal service.<br />Comment: 11 pages, to be published in SPIE'2010 conference on "Optical and Infrared Interferometry II"

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1009.0137
Document Type :
Working Paper
Full Text :
https://doi.org/10.1117/12.857024