Seven-year Multi-color Optical Monitoring of BL Lacertae Object S5 0716+714
Abstract
We have monitored the BL Lacertae object S5 0716+714 in five intermediate optical wavebands from 2004 September to 2011 April. Here, we present data that include 8661 measurements representing one of the largest databases obtained for an object in the optical domain. A simple analysis of the data indicates that the object was active most of the time, and intraday variability was frequently observed. In total, the object varied by 2.614 mag in the i band. Strong bluer-when-brighter chromatism was observed on long, intermediate, and short timescales.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- February 2013
- DOI:
- 10.1088/0067-0049/204/2/22
- arXiv:
- arXiv:1212.5875
- Bibcode:
- 2013ApJS..204...22D
- Keywords:
-
- BL Lacertae objects: individual: S5 0716+714;
- galaxies: active;
- galaxies: photometry;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Cosmology and Nongalactic Astrophysics
- E-Print:
- 29 pages, 8 figures