Round the Clock Observations of the Q0957+561 A,B Gravitationally Lensed Quasar

An observing campaign with 10 participating observatories has undertaken to monitor the optical brightness of the Q0957 gravitationally lensed quasar for 10 consecutive nights in January 2000. The resulting A image brightness curve has significant brightness fluctuations and makes a photometric pred...

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Bibliographic Details
Published inarXiv.org
Main Authors Colley, Wesley N, Schild, Rudolph E, Abajas, Cristina, Alcalde, David, Aslan, Zeki, Barrena, Rafael, Dudinov, Vladimir, Khamitov, Irek, Kjernsmo, Kjetil, Lee, Hyun Ju, Lee, Jonghwan, Lee, Myung Gyoon, Licandro, Javier, Maoz, Dan, Mediavilla, Evencio, Motta, Veronica, Munoz, Jose, Oscoz, Alex, Serra-Ricart, Miquel, Sinelnikov, Igor, Stabell, Rolf, Teuber, Jan, Zheleznyak, Alexander
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 09.03.2001
Subjects
Brightness
Gravitational lenses
Light curve
Microlenses
Observatories
Photometry
Quasars
Time lag
Variations
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Summary:An observing campaign with 10 participating observatories has undertaken to monitor the optical brightness of the Q0957 gravitationally lensed quasar for 10 consecutive nights in January 2000. The resulting A image brightness curve has significant brightness fluctuations and makes a photometric prediction for the B image light curve for a second campaign planned for 12-21 March 2001. The ultimate purpose is to determine the gravitational lens time delay to a fraction of an hour, and to seek evidence for rapid microlensing.
ISSN:2331-8422
DOI:10.48550/arxiv.0103146