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Optical and Near Infrared Observations of blazar AO 0235+16

ATEL # 1746; M. Buxton, C. Bailyn, P. Coppi, A. Kaptur, J. Isler, M. Urry (Yale Univ.), L. Maraschi (INAF Osservatorio Astronomico di Brera) and G. Fossati (Rice Univ.)
on 26 Sep 2008; 21:56 UT
Password Certification: Michelle Buxton (

Subjects: Infra-Red, Optical, AGN, Quasars

We are conducting a long-term monitoring campaign of the optical and near-IR brightness of gamma-ray bright blazars using the SMARTS 1.3m telescope and ANDICAM instrument. We confirm the brightness increase of 0235+164 noted in ATel #1744. We find that since August 20, 2008 (JD 2454698.85) the source has brightened from B=18.2 to B=16.3; from R=16.3 to R=14.6 and from J=13.8 to J=12.3. We continue to monitor this and other gamma-ray bright blazars on a near-daily basis. Our results are publicly available, and can be found at Note that parts of the site are still under construction.

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R. E. Rutledge , Editor
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