Reference : QSO 2237+0305 VR light curves from Gravitational Lenses International Time Project op...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/22121
QSO 2237+0305 VR light curves from Gravitational Lenses International Time Project optical monitoring
English
Alcalde, D. [> > > >]
Mediavilla, E. [> > > >]
Moreau, O. [> > > >]
Munoz, J. A. [> > > >]
Libbrecht, C. [> > > >]
Goicoechea, L. J. [> > > >]
Surdej, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Puga, E. [> > > >]
De Rop, Yves mailto [Université de Liège - ULg > Administration de l'enseignement et des étudiants > AEE : Conseil général des études >]
Barrena, R. [> > > >]
Gil-Merino, R. [> > > >]
McLeod, B. A. [> > > >]
Motta, V. [> > > >]
Oscoz, A. [> > > >]
Serra-Ricart, M. [> > > >]
20-Jun-2002
Astrophysical Journal
University of Chicago Press
572
2, Part 1
729-734
Yes (verified by ORBi)
International
0004-637X
Chicago
IL
[en] galaxies : photometry ; Cosmology: Gravitational Lensing ; quasars : individual (Q2237+0305)
[en] We present VR observations of QSO 2237+ 0305 conducted by the Gravitational Lensing International Time Project collaboration from 1999 October 1 to 2000 February 3. The observations were made with the 2.56 m Nordic Optical Telescope at Roque de los Muchachos Observatory, La Palma ( Spain). The pointspread function ( PSF) fitting method and an adapted version of the ISIS subtraction method have been used to derive the VR light curves of the four components ( A D) of the quasar. The mean errors range in the intervals 0.01-0.04 mag ( PSF fitting) and 0.01-0.02 mag ( ISIS subtraction), with the faintest component ( D) having the largest uncertainties. We address the relatively good agreement between the A and D light curves derived using different filters, photometric techniques, and telescopes. The new VR light curves of component A extend the time coverage of a high-magnification microlensing peak, which was discovered by the OGLE team.
Researchers ; Professionals
http://hdl.handle.net/2268/22121
10.1086/340343
http://adsabs.harvard.edu/abs/2002ApJ...572..729A
The authors thank SAO/NASA ADS Astronomy Abstract Service for their deposit authorization.

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Alcalde_AJ_2002_572_729_734.pdfPublisher postprint166.94 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.