Accession Number:

ADA586710

Title:

Characterizing the Optical Variability of Bright Blazars: Variability-Based Selection of Fermi Active Galactic Nuclei

Descriptive Note:

Journal article

Corporate Author:

CALIFORNIA INST OF TECH PASADENA DIV OF PHYSICS MATHEMATICS AND ASTRONOMY

Report Date:

2012-11-20

Pagination or Media Count:

13.0

Abstract:

We investigate the use of optical photometric variability to select and identify blazars in large-scale time-domain surveys, in part to aid in the identification of blazar counterparts to the 30 of -ray sources in the Fermi 2FGL catalog still lacking reliable associations. Using data from the optical LINEAR asteroid survey, we characterize the optical variability of blazars by fitting a damped random walk model to individual light curves with two main model parameters, the characteristic timescales of variability , and driving amplitudes on short timescales .

Subject Categories:

  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE