... PSR B1133+16

Based on observations made with ESO telescope at the Paranal Observatory under Program 71.D-0499(A) and with archival ESO VLT data, obtained from the ESO/ST-ECF Science Archive Facility.

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... (FORS1

For the instrument details see www.eso.org/instruments/fors/

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... archive

http:/www.archive.eso.org

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... catalog

USNO-B1 is currently incorporated into the Naval Observatory Merged Astrometric Dataset (NOMAD), which combines astrometric and photometric information of Hipparcos, Tycho-2, UCAC, Yellow-Blue6, USNO-B, and the 2MASS, www.nofs.navy.mil/data/fchpix/

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... (GSC-II v2.3.2)

www-gsss.stsci.edu/Catalogs/GSC/GSC2/GSC2.htm

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... zero-points

The zero-points were calculated for the flux in ADU/s units. The Paranal Observatory web page lists this night as a photometric one and our zero-points, when converted to electron/s units, are consistent with those provided for this night by the VLT/FORS1 team.

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... 14

A maximum number of standards per night observed during our program.

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... site

http://www.eso.org

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... 2005

The X-ray data were retrieved from the Chandra archive (Obs. ID 5519, 2005-02-23.18ks exposure, PI G. Garmire.

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