A Search for Microvariability in Radio-Quiet Quasars

Details A Search for Microvariability in Radio-Quiet Quasars A Search for Microvariability in Radio-Quiet Quasars

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...195.1608c&link_type=abstract

American Astronomical Society, 195th AAS Meeting, #16.08; Bulletin of the American Astronomical Society, Vol. 31, p.1397

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Scientific paper

We present the results of a search for microvariability in Radio Quiet QSOs. The objects in the sample were selected to have R << 1, following the criteria set forth by Sagar, Krishna and Wiita (1996). Each object was observed for 6-8 hours over 4-5 consecutive nights, using either the 42" Hall or the 72" Perkins telescope at Lowell Observatory equipped with a direct CCD camera. Differential photometry was performed on the QSO and several comparison stars yielding photometric accuracies of 1-3%. No evidence of microvariability was found in any of the objects. We compare these results to those of other authors who claim to have detected microvariations in Radio Quiet Quasars using similar size telescopes and instrumentation. This work was funded in part by the Kentucky Space Grant Consortium and NASA.

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