Наша группа приступила к наблюдению яркой сверхновой в М74.
Сверхновая с высокой поляризацией
Blazars 3C 454.3 and B3 1633+38 bright in near-infrared
V. M. Larionov and N. V. Efimova (St. Petersburg University and Pulkovo Obserrvatory)
on 24 Sep 2013; 00:02 UT
We perform near-infrared monitoring of selected gamma-bright blazars using 1.1-m AZT-24 telescope (Campo Imperatore, Italy), as a part of WEBT/GASP project. We report that blazars 3C454.3 and B3 1633+38 (=4C 38.41) demonstrate violent activity during last nights. 3C 454.3 brightened in J band from 13.31 to 12.10 mag from 2013 September 20 to September 23. B3 1633+38 reached a value of J=14.14, as compared to J=15.05 at 2013 August 15. Our preliminary light curves may be seen for B3 1633+38 at this page and for 3C454.3 here. Current high activity state of these blazars deserves close attention in all wavelengths.
Сверхновая SN 2013bi
Телескоп LX200 начал наблюдения сверхновой SN 2013bi в галактике NGC 6632.
PG 1553+113 with MAGIC
Телескоп LX-200 будет участвовать в кампании по наблюдениям блазара PG 1553+113 совместно с телескопами MAGIC в рамках проекта WEBT.
An unprecedented optical outburst of the blazar CTA102
Мы первые заметили мощную вспышку блазара CTA 102 и известили об этом астрономическое сообщество.
Astronomer’s Telegram #4397
V. Larionov, D. Blinov, (St. Petersburg Univ.), S. Jorstad (Boston Univ. and St. Petersburg Univ.)
on 19 Sep 2012; 17:49 UT
Our photometric monitoring (partly made in the frame of GASP/WEBT project) at the 70-cm AZT-8 (CrAO, Ukraine) telescope and at the 1.8 m Perkins telescope of Lowell observatory (Flagstaff, AZ) shows that blazar CTA 102 (a.k.a. 4C+11.69, PKS 2230+11) has entered a phase of a high optical activity. After several years of moderate activity the blazar increased its brightness up to ~16.2 in 2012 (see here). Our recent observations show that on September 15 the source was R=16.02, while on September 18 its brightness reached R=14.67. Analysis of publicly available data of the LAT onboard of the Fermi gamma-observatory shows a sharp increase in gamma-ray flux along with the optical brightening. Daily averaged gamma-ray flux reached 2.0E-6 ph cm^-2s^-1 (E>100MeV) on September 18, (see here). Since the optical flux seems to be unprecedented for this object the multifrequency observations are encouraged.
CTA 102 довольно известный блазар. Ему даже посвящена песня.