УДК 52
УДК 53
УДК 520
УДК 521
УДК 523
УДК 524
УДК 52-1
УДК 52-6
ГРНТИ 41.00
ГРНТИ 29.35
ГРНТИ 29.31
ГРНТИ 29.33
ГРНТИ 29.27
ГРНТИ 29.05
ОКСО 03.06.01
ОКСО 03.05.01
ОКСО 03.04.03
ТБК 614
ТБК 6135
ББК 2
ББК 223
BISAC SCI004000
BISAC SCI005000
The results of simultaneous TESS and multiband photometric observations of BL Lac during a high activity
Секция:
HIGH ENERGY ASTROPHYSICS
Gorbachev M.
Crimean Astrophysical Observatory of the Russian Academy of Sciences
Butuzova M.
Crimean Astrophysical Observatory of the Russian Academy of Sciences
Симферополь, Республика Крым, Россия
Pit N.
Crimean Astrophysical Observatory of the Russian Academy of Sciences
Krivenko A.
Crimean Astrophysical Observatory of the Russian Academy of Sciences
Аннотация:
For the blazar BL Lac, we analyze data from TESS and multiband observations that were obtained using the MTM-500 telescope of the Crimean Astrophysical Observatory from 1.09.2022 to 30.09.2022. During this period, BL Lac showed strong variability, both accompanied and unaccompanied by changes in spectral index. The shortest characteristic variability times are mainly in the range from 0.2 to 1 day and do not depend on the object brightness, the spectral index, and the average amplitude of the variability within the corresponding intervals of the light curve. It indicates that the mechanisms of short-term variability are characterized by two or more independent parameters.
For the blazar BL Lac, we analyze data from TESS and multiband observations that were obtained using the MTM-500 telescope of the Crimean Astrophysical Observatory from 1.09.2022 to 30.09.2022. During this period, BL Lac showed strong variability, both accompanied and unaccompanied by changes in spectral index. The shortest characteristic variability times are mainly in the range from 0.2 to 1 day and do not depend on the object brightness, the spectral index, and the average amplitude of the variability within the corresponding intervals of the light curve. It indicates that the mechanisms of short-term variability are characterized by two or more independent parameters.
Ключевые слова:
radiation mechanisms: non-thermal; relativistic processes; techniques: photometric; BL Lacertae objects: individual (BL Lac); galaxies: jets
radiation mechanisms: non-thermal; relativistic processes; techniques: photometric; BL Lacertae objects: individual (BL Lac); galaxies: jets
this work is partly supported by the Russian Science Foundation, No. 24-22-00343
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