Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Repeated pattern of gamma-ray flares in the light curve of the blazar 3C 279. / Blinov, D.; Jorstad, S. G.; Larionov, V. M.; Macdonald, N. R.; Grishina, T.; Kopatskaya, E.; Larionova, E.; Larionova, L.; Morozova, D.; Nikiforova, A.; Savchenko, S.; Troitskaya, Y.; Troitsky, I.
в: Monthly Notices of the Royal Astronomical Society, Том 505, № 3, 01.08.2021, стр. 4616-4625.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Repeated pattern of gamma-ray flares in the light curve of the blazar 3C 279
AU - Blinov, D.
AU - Jorstad, S. G.
AU - Larionov, V. M.
AU - Macdonald, N. R.
AU - Grishina, T.
AU - Kopatskaya, E.
AU - Larionova, E.
AU - Larionova, L.
AU - Morozova, D.
AU - Nikiforova, A.
AU - Savchenko, S.
AU - Troitskaya, Y.
AU - Troitsky, I.
N1 - Publisher Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
PY - 2021/8/1
Y1 - 2021/8/1
N2 - The optical polarization plane of some blazars occasionally exhibits smooth hundred degree long rotations. Multiple theoretical models have been proposed to explain the nature of such events. A deterministic origin of these rotations, however, remains uncertain. We aim to find repeating patterns of flares in gamma-ray light curves of blazars, which accompany optical polarization plane rotations. Such patterns have been predicted to occur by one of the models explaining this phenomenon. For the blazar 3C 279, where multiple polarization plane rotations have been reported in the literature, we obtain the Fermi-LAT gamma-ray light curve and analyse its intervals adjacent to polarization plane rotations. We find a complex characteristic pattern of flares in the gamma-ray light curve that is repeated during periods adjacent to three large amplitude EVPA rotation events in 3C 279. We discover a 'hidden EVPA rotation', which can only be seen in the relative Stokes parameters plane and that occurred simultaneously with the fourth repetition of the pattern. This finding strongly favours the hypothesis of emission features propagating in the jet as the reason of optical polarization plane rotations. Furthermore, it is compatible with the hypothesis of a sheath in the jet comprised of more slowly propagating emission features.
AB - The optical polarization plane of some blazars occasionally exhibits smooth hundred degree long rotations. Multiple theoretical models have been proposed to explain the nature of such events. A deterministic origin of these rotations, however, remains uncertain. We aim to find repeating patterns of flares in gamma-ray light curves of blazars, which accompany optical polarization plane rotations. Such patterns have been predicted to occur by one of the models explaining this phenomenon. For the blazar 3C 279, where multiple polarization plane rotations have been reported in the literature, we obtain the Fermi-LAT gamma-ray light curve and analyse its intervals adjacent to polarization plane rotations. We find a complex characteristic pattern of flares in the gamma-ray light curve that is repeated during periods adjacent to three large amplitude EVPA rotation events in 3C 279. We discover a 'hidden EVPA rotation', which can only be seen in the relative Stokes parameters plane and that occurred simultaneously with the fourth repetition of the pattern. This finding strongly favours the hypothesis of emission features propagating in the jet as the reason of optical polarization plane rotations. Furthermore, it is compatible with the hypothesis of a sheath in the jet comprised of more slowly propagating emission features.
KW - galaxies: Jets
KW - galaxies: Nuclei
KW - gamma-rays: Galaxies
KW - polarization
KW - quasars: Individual: 3C 279
UR - http://www.scopus.com/inward/record.url?scp=85108997027&partnerID=8YFLogxK
U2 - 10.1093/mnras/stab1484
DO - 10.1093/mnras/stab1484
M3 - Article
AN - SCOPUS:85108997027
VL - 505
SP - 4616
EP - 4625
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
SN - 0035-8711
IS - 3
ER -
ID: 84656218