Deep Astrometric Standards
| hal.structure.identifier | Yale University Observatory | |
| dc.contributor.author | PLATAIS, I. | |
| dc.contributor.author | DJORGOVSKI, S. G. | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| hal.structure.identifier | Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB] | |
| hal.structure.identifier | Observatoire aquitain des sciences de l'univers [OASU] | |
| dc.contributor.author | DUCOURANT, C. | |
| hal.structure.identifier | US Naval Observatory [US NAVAL OBSERVATORY] | |
| dc.contributor.author | FEY, A. L. | |
| hal.structure.identifier | Max-Planck-Institut für Extraterrestrische Physik [MPE] | |
| dc.contributor.author | FREY, S. | |
| dc.contributor.author | IVEZIC, Z. | |
| dc.contributor.author | MIGHELL, K. J. | |
| dc.contributor.author | REST, A. | |
| dc.contributor.author | WYSE, R. F. G. | |
| dc.contributor.author | ZACHARIAS, N. | |
| dc.date.issued | 2006-08 | |
| dc.date.conference | 2006-08-22 | |
| dc.description.abstractEn | The advent of next generation imaging telescopes such as LSST and Pan-STARRS - instruments with wide fields and huge Giga-pixel cameras - will soon create a critical need for deep and precise reference frames for astrometric calibrations. The Deep Astrometric Standards (DAS) program aims to establish such a frame by providing astrometry at the 5-10 mas accuracy level in four 10 sq. deg Galactic fields, to a depth of V=25. We use 3-4 m class optical telescopes to set up these standards. The principal source of our reference frame is UCAC2 and VLBI positions of radio-loud QSOs having optical counterparts with V<25. The novelty of the DAS project is a new way of linking our observations to the ICRF. We pre-select the candidate radio-optical link sources from existing radio surveys, then conduct the VLA observations to measure the spectra and spatial compactness and, finally, observe the best 10-15 sources with the VLBI. So far, two out of the four DAS fields are in the advanced stages of construction. | |
| dc.language.iso | en | |
| dc.source.title | 26th meeting of the IAU, Joint Discussion 16, 22-23 August 2006, Prague, Czech Republic, JD16, #38 | |
| dc.title.en | Deep Astrometric Standards | |
| dc.type | Communication dans un congrès | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO] | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph] | |
| bordeaux.page | 38 | |
| bordeaux.volume | 16 | |
| bordeaux.country | CZ | |
| bordeaux.title.proceeding | 26th meeting of the IAU, Joint Discussion 16, 22-23 August 2006, Prague, Czech Republic, JD16, #38 | |
| bordeaux.conference.city | Prague | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00130064 | |
| hal.version | 1 | |
| hal.invited | non | |
| hal.proceedings | oui | |
| hal.conference.end | 2006-08-23 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00130064v1 | |
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