Optical and NIR activity of blazars 3C454.3 and 3C66a

Astronomy and Astrophysics – Astronomy

Scientific paper

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Infra-Red, Optical, Request For Observations, Agn, Blazar, Quasar

Scientific paper

With reference to ATels #2988, #2995 we report that blazar 3C454.3 shows prominent activity in optical and NIR bands (R~13.5 and J~11.5 on November 2, brightening by ~1.5 mag within ~10 days). These values are close to the brightest states of 2008 July and 2009 December outbursts (see ATels #1625 and #2325). Simultaneously R band polarization reached a level of 30%. Our monitoring of 3C66a show that optical and NIR brightness of this blazar is now on the highest level for the time span of last 3 years, R~13.4 and J~11.7.

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