333 citations · 4.2k across the 122 of their papers we have counts for
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Extreme scattering events from axisymmetric plasma lenses
Lingyi Dong, Maria Petropoulou, Dimitrios Giannios
Frequency-dependent brightness fluctuations of radio sources, the so-called extreme scattering events (ESEs), have been observed over the last three decades. They are caused by Gal…
A lesson from GW170817: most neutron star mergers result in tightly collimated successful GRB jets
Paz Beniamini, Maria Petropoulou, Rodolfo Barniol Duran +1
The joint detection of gravitational waves (GWs) and -rays from a binary neutron-star (NS) merger provided a unique view of off-axis GRBs and an independent measurement of the N…
The Steady Growth of the High-Energy Spectral Cutoff in Relativistic Magnetic Reconnection
Maria Petropoulou, Lorenzo Sironi
Magnetic reconnection is invoked as an efficient particle accelerator in a variety of astrophysical sources of non-thermal high-energy radiation. With large-scale two-dimensional p…
A Multimessenger Picture of the Flaring Blazar TXS 0506+056: implications for High-Energy Neutrino Emission and Cosmic Ray Acceleration
A. Keivani, K. Murase, M. Petropoulou +14
Detection of the IceCube-170922A neutrino coincident with the flaring blazar TXS 0506+056, the first and only 3-sigma high-energy neutrino source association to date, offers a pote…
Radiative Signatures of Plasmoid-Dominated Reconnection in Blazar Jets
I. M. Christie, M. Petropoulou, L. Sironi +1
The multi-wavelength spectral and temporal variability observed in blazars set tight constraints on current theoretical emission models. Here, we investigate the relativistic magne…
Blazar Flares as an Origin of High-Energy Cosmic Neutrinos?
Kohta Murase, Foteini Oikonomou, Maria Petropoulou
We consider implications of high-energy neutrino emission from blazar flares, including the recent event IceCube-170922A and the 2014-2015 neutrino flare that could originate from…
Patterns of variability in supercritical hadronic systems
Maria Petropoulou, Apostolos Mastichiadis
A unique and often overlooked property of a source loaded with relativistic protons is that it can become supercritical, i.e. it can undergo an abrupt transition from a radiatively…