Intra-Day Simultaneous Optical Monitoring of S5 0716 714Reportar como inadecuado


Intra-Day Simultaneous Optical Monitoring of S5 0716 714


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1

Department of Astronomy, Beijing Normal University, Beijing 100875, China

2

Department of Astronomy, Physics School, Peking University, Beijing 100871, China

3

Kavli Institute for Astronomy and Astrophysics KIAA, Peking University, Beijing 100871, China





*

Author to whom correspondence should be addressed.



Academic Editors: Jose L. Gómez, Alan P. Marscher and Svetlana G. Jorstad

Abstract We present the results of simultaneous optical multi-color observations of BL Lac object 0716+714 in November 2014 and February 2016. The intra-day variability IDV varies from 0.04 to 0.3 mags. Both achromatic and bluer-when-brighter BWB color behaviors were detected. A probable quasi-periodic oscillation overlapping on a significant flare was also observed. We used the interpolated cross-correlation function to calculate time lags between light curves in different bands. Variations in the B and R lagging behind that in the I band were found, which corresponds with anti-clockwise loops on the color-magnitude diagrams. View Full-Text

Keywords: galaxies: active; BL Lac Objects: individual: S5 0716+714; galaxies: photometry galaxies: active; BL Lac Objects: individual: S5 0716+714; galaxies: photometry





Autor: Xiaoyuan Zhang 1, Jianghua Wu 1,* and Zhongyi Man 2,3

Fuente: http://mdpi.com/



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