J/A+A/558/A92 S5 0716+714 microvariability observation (Bhatta+, 2013)
The 72-h WEBT microvariability observation of blazar S5 0716+714 in 2009.
Bhatta G., Webb J.R., Hollingsworth H., Dhalla S., Khanuja A., Bachev R.,
Blinov D.A., Bottcher M., Calle Bravo O.J.A., Calcidese P., Capezzali D.,
Carosati D., Chigladze R., Collins A., Coloma J.M., Efimov Y., Gupta A.C.,
Hu S-M., Kurtanidze O., Lamerato A., Larionov V.M., Lee C.-U., Lindfors E.,
Murphy B., Nilsson K., Ohlert J.M., Oksanen A., Paakkonen P., Pollock J.T.,
Rani B., Reinthal R., Rodriguez D., Ros J.A., Roustazadeh P., Sagar R.,
Sanchez A., Shastri P., Sillanpaa A., Strigachev A., Takalo L., Vennes S.,
Villata M., Villforth C., Wu J., Zhou X.
<Astron. Astrophys. 558, A92 (2013)>
=2013A&A...558A..92B 2013A&A...558A..92B
ADC_Keywords: BL Lac objects ; QSOs ; Photometry
Keywords: quasars: individual: S5 0716+714 -
BL Lacertae objects: individual: S5 0716+714
Abstract:
The international whole earth blazar telescope (WEBT) consortium
planned and carried out three days of intensive micro-variability
observations of S5 0716+714 from February 22, 2009 to February 25,
2009. This object was chosen due to its bright apparent magnitude
range, its high declination, and its very large duty cycle for
micro-variations.
We report here on the long continuous optical micro-variability light
curve of 0716+714 obtained during the multi-site observing campaign
during which the Blazar showed almost constant variability over a 0.5
magnitude range. The resulting light curve is presented here for the
first time. Observations from participating observatories were
corrected for instrumental differences and combined to construct the
overall smoothed light curve.
Thirty-six observatories in sixteen countries participated in this
continuous monitoring program and twenty of them submitted data for
compilation into a continuous light curve. The light curve was
analyzed using several techniques including Fourier transform, Wavelet
and noise analysis techniques. Those results led us to model the light
curve by attributing the variations to a series of synchrotron pulses.
Objects:
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RA (2000) DE Designation(s)
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07 21 53.45 +71 20 36.4 S5 0716+714 = 8C 0716+714
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
lc.dat 17 2613 Final light curve
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Byte-by-byte Description of file: lc.dat
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Bytes Format Units Label Explanations
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1- 7 F7.4 h Time [0/78.89[ Time from JD=2454886.1
11- 17 F7.4 mag Rmag Johnson R magnitude
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Acknowledgements:
Gopal Bhatta, gbhat001(at)fiu.edu
(End) Patricia Vannier [CDS] 30-Sep-2013