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| Paper: |
Characterization of Optical Microvariability in Quasars |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
123 |
| Authors: |
Ramírez, A.; de Diego, J. A.; Dultzin-Hacyan, D.; Benítez, E. |
| Abstract: |
Microvariations (magnitude changes of several hundredths in timescales ranging from minutes to hours) may arise from three sources: jet and accretion instabilities and gravitational microlensing events. Each may produce different changes on the quasars continuous spectra. For this reason, BVR observations can yield a high degree of discrimination between these microvariability sources. The monitoring of selected radio-quiet and radio-loud quasars samples is presented. Ours results to cast light on the physical models for microvariations. |
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