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

• Published in: arXiv.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
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 09.03.2001
• Subjects: Brightness; Gravitational lenses; Light curve; Microlenses; Observatories; Photometry; Quasars; Time lag; Variations

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...