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RoboPol: connection...
RoboPol: connection between optical polarization plane rotations and gamma-ray flares in blazars
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- Blinov, Dmitriy (författare)
- Panepistimio Kritis,University of Crete,Saint Petersburg State University - Spsu
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al., et (författare)
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- Panopoulou, Georgia, 1989 (författare)
- California Institute of Technology (Caltech)
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(creator_code:org_t)
- 2017-10-26
- 2018
- Engelska.
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Ingår i: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 474:1, s. 1296-1306
- Relaterad länk:
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https://academic.oup...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We use results of our 3 yr polarimetric monitoring programme to investigate the previously suggested connection between rotations of the polarization plane in the optical emission of blazars and their gamma-ray flares in the GeV band. The homogeneous set of 40 rotation events in 24 sources detected by RoboPol is analysed together with the gamma-ray data provided by Fermi-LAT. We confirm that polarization plane rotations are indeed related to the closest gamma-ray flares in blazars and the time lags between these events are consistent with zero. Amplitudes of the rotations are anticorrelated with amplitudes of the gamma-ray flares. This is presumably caused by higher relativistic boosting (higher Doppler factors) in blazars that exhibit smaller amplitude polarization plane rotations. Moreover, the time-scales of rotations and flares are marginally correlated.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- galaxies: nuclei
- galaxies: active
- galaxies: jets
- Astrophysics - High Energy Astrophysical Phenomena
- polarization
- gamma-rays: galaxies
- Astrophysics - Cosmology and Nongalactic Astrophysics
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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