The optical activity of the bright gamma-ray loud blazar S5 0716+714 is monitored by the Perugia-Roma-Torino collaboration since November 1994. In this contribution we update the light curve presented by Ghisellini et al. (1997, A&A 327, 61) to the spring of 1998. The source was often in very bright luminosity states and reached the highest level ever observed (September 1997). In a few occasions we carried out simultaneous observations with a few telescopes to study intranight variability in different bands. Flux changes with a typical amplitude of about 0.1 mag (R) have been often detected.
Photometric R_C Light Curve of the γ-ray Loud BL Lac Object S5 0716+714
TOSTI, Gino;
1999
Abstract
The optical activity of the bright gamma-ray loud blazar S5 0716+714 is monitored by the Perugia-Roma-Torino collaboration since November 1994. In this contribution we update the light curve presented by Ghisellini et al. (1997, A&A 327, 61) to the spring of 1998. The source was often in very bright luminosity states and reached the highest level ever observed (September 1997). In a few occasions we carried out simultaneous observations with a few telescopes to study intranight variability in different bands. Flux changes with a typical amplitude of about 0.1 mag (R) have been often detected.File in questo prodotto:
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