SEVEN-YEAR MULTI-COLOR OPTICAL MONITORING OF BL LACERTAE OBJECT S5 0716+714

Journal Article · Fri Feb 15 00:00:00 EST 2013 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/204/2/22· OSTI ID:22107741

Yan, Dai; Jianghua, Wu; Zonghong, Zhu; Lingzhi, Wang ^[1]; Xu, Zhou; Jun, Ma ^[2]

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1. Department of Astronomy, Beijing Normal University, Beijing 100875 (China)
2. Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Beijing 100012 (China)

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.

• OSTI ID: 22107741
• Journal Information: Astrophysical Journal, Supplement Series, Vol. 204, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BL LACERTAE OBJECTS
GALAXIES
MONITORING
PHOTOMETRY