6533b855fe1ef96bd12b0a30

RESEARCH PRODUCT

LONG-TERM MONITORING, TIME DELAY, AND MICROLENSING IN THE GRAVITATIONAL LENS SYSTEM Q0142-100

Miquel Serra-ricartMiquel Serra-ricartEvencio MediavillaEvencio MediavillaA. OscozA. OscozJ. A. Muñoz

subject

PhysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Event (relativity)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsGravitational microlensinglaw.inventionTelescopeGravitational lensSpace and Planetary ScienceObservatorylawLong term monitoringAstrophysics - Cosmology and Nongalactic Astrophysics

description

We present twelve years 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 delta2-method to the dataset leads to a value of the time delay between both components of the system of 72+/-22 days (68 per cent confidence level), consistent within the uncertainties with the latest previous results. With this value in mind a possible microlensing event is detected in Q0142-100.

https://doi.org/10.1088/0004-637x/779/2/144