2013A&A...558A..92B


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.24CEST02:51:12

2013A&A...558A..92B - Astronomy and Astrophysics, volume 558A, 92-92 (2013/10-1)

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., BOETTCHER M., BRAVO CALLE 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., PAEAEKKOENEN P., POLLOCK J.T., RANI B., REINTHAL R., RODRIGUEZ D., ROS J.A., ROUSTAZADEH P., SAGAR R., SANCHEZ A., SHASTRI P., SILLANPAEAE A., STRIGACHEV A., TAKALO L., VENNES S., VILLATA M., VILLFORTH C., WU J. and ZHOU X.

Abstract (from CDS):

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 0.5mag 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. We have interpreted the observed microvariations in this extended light curve in terms of a new model consisting of individual stochastic pulses due to cells in a turbulent jet which are energized by a passing shock and cool by means of synchrotron emission. We obtained an excellent fit to the 72-hour light curve with the synchrotron pulse model.

Abstract Copyright:

Journal keyword(s): quasars: individual: S5 0716+714 - BL Lacertae objects: individual: S5 0716+714

VizieR on-line data: <Available at CDS (J/A+A/558/A92): lc.dat>

Simbad objects: 2

goto Full paper

goto View the reference in ADS

Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 8C 0716+714 BLL 07 21 53.4484901266 +71 20 36.362058601   15.5 14.17 14.27   ~ 1100 1
2 QSO J0738+1742 BLL 07 38 07.39374766 +17 42 18.9982302   16.76 16.22 15.78   ~ 887 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2013A&A...558A..92B and select 'bookmark this link' or equivalent in the popup menu


2019.10.24-02:51:12

© Université de Strasbourg/CNRS

    • Contact