Characterization of Optical Microvariability in Quasars

Bibcode
2003ASPC..290..123R
Ramírez, A.; de Diego, J. A.; Dultzin-Hacyan, D.; Benítez, E.
Bibliographical reference

Active Galactic Nuclei: from Central Engine to Host Galaxy, meeting held in Meudon, France, July 23-27, 2002, Eds.: S. Collin, F. Combes and I. Shlosman. ASP (Astronomical Society of the Pacific), Conference Series, Vol. 290, p. 123.

Advertised on:
0
2003
Number of authors
4
IAC number of authors
0
Citations
1
Refereed citations
1
Description
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.
Type
Non-refereed

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