SearchCal: a Virtual Observatory tool for searching calibrators in optical long baseline interferometry. I: The bright object case

Details SearchCal: a Virtual Observatory tool for searching calibrators in optical long baseline interferometry. I: The bright object case SearchCal: a Virtual Observatory tool for searching calibrators in optical long baseline interferometry. I: The bright object case

2006-07-03

arxiv.org/abs/astro-ph/0607026v1

Astronomy and Astrophysics

Astrophysics

Scientific paper

10.1051/0004-6361:20054469

In long baseline interferometry, the raw fringe contrast must be calibrated to obtain the true visibility and then those observables that can be interpreted in terms of astrophysical parameters. The selection of suitable calibration stars is crucial for obtaining the ultimate precision of interferometric instruments like the VLTI. We have developed software SearchCal that builds an evolutive catalog of stars suitable as calibrators within any given user-defined angular distance and magnitude around the scientific target. We present the first version of SearchCal dedicated to the bright-object case V<=10; K<=5). Star catalogs available at the CDS are consulted via web requests. They provide all the useful information for selecting of calibrators. Missing photometries are computed with an accuracy of 0.1 mag and the missing angular diameters are calculated with a precision better than 10%. For each star the squared visibility is computed by taking the wavelength and the maximum baseline of the foreseen observation into account.} SearchCal is integrated into ASPRO, the interferometric observing preparation software developed by the JMMC, available at the address: http://mariotti.fr.

Affiliated with

Also associated with

No associations

Rating

SearchCal: a Virtual Observatory tool for searching calibrators in optical long baseline interferometry. I: The bright object case does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with SearchCal: a Virtual Observatory tool for searching calibrators in optical long baseline interferometry. I: The bright object case, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SearchCal: a Virtual Observatory tool for searching calibrators in optical long baseline interferometry. I: The bright object case will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-416407