Long-term monitoring, time delay, and microlensing in the gravitational lens system Q0142-100

Journal Article · Fri Dec 20 00:00:00 EST 2013 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/779/2/144· OSTI ID:22348421

Oscoz, A.; Serra-Ricart, M.; Mediavilla, E. ^[1]; Muñoz, J. A. ^[2]

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1. Instituto de Astrofísica de Canarias, C. Vía Láctea s/n, E-38205 La Laguna (Spain)
2. Departamento de Astronomía y Astrofísica, Universidad de Valencia, E-46100-Burjassot, Valencia (Spain)

We present 12 yr of monitoring of the gravitational lens Q0142-100 from the Teide Observatory. The data, taken from 1999 to 2010, comprise 105 observing nights with the IAC80 Telescope. The application of the δ{sup 2} method to the dataset leads to a value for the time delay between both components of the system of 72 ± 22 days (68% confidence level), consistent within uncertainties with the most recent results. With this value in mind a possible microlensing event is detected in Q0142-100.

• OSTI ID: 22348421
• Journal Information: Astrophysical Journal, Vol. 779, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
DATASETS
GRAVITATIONAL LENSES
TELESCOPES
TIME DELAY