Support ATel At Patreon

[ Previous | Next | ADS ]

Blazars AO 0235+164, [HB89] 0716+714 and [HB89] 1633+382 are still near the maxima of the long-term light curves

ATel #7004; O. I. Spiridonova, V. V. Vlasyuk, A. S. Moskvitin (SAO RAS), V. S. Bychkova (Astro Space Center RAS)
on 28 Jan 2015; 21:25 UT
Credential Certification: Alexander Moskvitin (mosk@sao.ru)

Subjects: Optical, Blazar

Referred to by ATel #: 7026

We perform a multicolor broad-band photometry of the selected blazars with the 1-meter reflector Zeiss-1000 of the Special Astrophysical Observatory of RAS (Northern Caucasus, Russia), equipped with UBVRI filters and a 2k x 2k EEV 42-40 CCD. Three of them, AO 0235+164, [HB89] 0716+714, [HB89] 1633+382 remain near their maxima of the multi-year light curves.

1) AO 0235+164. After the reaching of the maximum light near Jan. 19 (ATel #6970) and brief fading down to R = 16.90 +/- 0.03 (JD=57044.15) the brightness of the object increased to R = 16.26 +/- 0.02 on Jan. 25 (JD = 57048.17).

2) [HB89] 0716+714. Similar behaviour but with smaller amplitude is demonstrated by 0716+714. After the maximum light near Jan. 18 (ATel #6953) it faded down to R = 12.18 +/- 0.03 (JD = 57043.40 and 57044.40), flared up to R = 11.77 +/- 0.02 on Jan. 23 (JD = 57046.39) and then demonstrated flux variation above R = 11.9.

3) [HB89] 1633+382. After the maximum light near Jan. 15 (according to our data and the V-band data by Danilet et al., ATel #6930) the object was faded down to R = 15.85 +/- 0.02 on Jan. 24 (JD = 57046.62), and then flared up almost to it's maximal brightness, R = 15.03 +/- 0.02 on Jan. 26 (JD = 57048.61).

Everywhere we meant JD as JD-2400000. Further multi-wavelength monitoring of this objects is strongly encouraged.