Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aj....114..565j&link_type=abstract
Astronomical Journal v.114, p. 565-574 (1997)
Astronomy and Astrophysics
Astronomy
67
Galaxies: Jets, Radio Lines: Galaxies, Quasars: Emission Lines
Scientific paper
A selected sample of radio-quiet and radio-loud quasi-stellar objects has been optically monitored in an effort to test some of the prominent theoretical mechanisms proposed for the origin of optical microvariability in active galactic nuclei. Two out of 10 radio-quiet QSOs and 6 out of 7 radio-loud QSOs observed show evidence for microvariations. This apparent contrast in microvariations between radio-quiet and radio-loud QSOs implies substantial support for models based on propagating shocks on relativistic jets as the process probably responsible for producing most of the microvariations observed in AGN.
Jang Minhwan
Miller Richard H.
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