Search Results - "ANDREI, M"
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Blast Waves from Magnetar Flares and Fast Radio Bursts
Published in The Astrophysical journal (01-06-2020)“…Magnetars younger than one century are expected to be hyperactive: besides winds powered by rotation, they can generate frequent magnetic flares, which launch…”
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2
Radiative Magnetic Reconnection Near Accreting Black Holes
Published in The Astrophysical journal (01-12-2017)“…A radiative mechanism is proposed for magnetic flares near luminous accreting black holes. It is based on recent first-principle simulations of magnetic…”
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3
Magnetars
Published in Annual review of astronomy and astrophysics (18-08-2017)“…Magnetars are young and highly magnetized neutron stars that display a wide array of X-ray activity including short bursts, large outbursts, giant flares, and…”
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4
Collisional mechanism for gamma-ray burst emission
Published in Monthly notices of the Royal Astronomical Society (01-09-2010)“…Nuclear and Coulomb collisions in gamma-ray burst (GRB) jets create a hot e± plasma. This collisional heating starts when the jet is still opaque, and extends…”
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5
Emission of Magnetar Bursts and Precursors of Neutron Star Mergers
Published in The Astrophysical journal (01-11-2021)“…Abstract Magnetar bursts can be emitted by Alfvén waves growing in the outer magnetosphere to nonlinear amplitudes, δ B / B ∼ 1, and triggering magnetic…”
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6
MAGNETAR HEATING
Published in The Astrophysical journal (20-12-2016)“…ABSTRACT We examine four candidate mechanisms that could explain the high surface temperatures of magnetars. (1) Heat flux from the liquid core heated by…”
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7
Scattering of Ultrastrong Electromagnetic Waves by Magnetized Particles
Published in Physical review letters (24-06-2022)Get full text
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8
Sub-photospheric Shocks in Relativistic Explosions
Published in The Astrophysical journal (01-04-2017)“…This paper examines the mechanism of internal shocks in opaque relativistic outflows, in particular in cosmological gamma-ray bursts. The shocks produce…”
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9
Damping of Strong GHz Waves near Magnetars and the Origin of Fast Radio Bursts
Published in The Astrophysical journal (01-11-2024)“…Abstract We investigate how a fast radio burst (FRB) emitted near a magnetar would propagate through its surrounding dipole magnetosphere at radii r = 10 7 –10…”
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10
RADIATIVE TRANSFER IN ULTRARELATIVISTIC OUTFLOWS
Published in The Astrophysical journal (20-08-2011)“…Analytical and numerical solutions are obtained for the equation of radiative transfer in ultrarelativistic opaque jets. The solution describes the initial…”
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11
ON THE MECHANISM OF HARD X-RAY EMISSION FROM MAGNETARS
Published in The Astrophysical journal (01-01-2013)“…Persistent activity of magnetars is associated with electric discharge that continually injects relativistic particles into the magnetosphere. Large active…”
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12
Kinetic Simulations of Radiative Magnetic Reconnection in the Coronae of Accreting Black Holes
Published in The Astrophysical journal (01-08-2020)“…We perform 2D and 3D particle-in-cell simulations of reconnection in magnetically dominated e plasmas subject to strong Compton cooling. Magnetic reconnection…”
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13
Monster Radiative Shocks in the Perturbed Magnetospheres of Neutron Stars
Published in The Astrophysical journal (01-12-2023)“…Abstract Magnetospheres of neutron stars can be perturbed by star quakes, interaction in a binary system, or sudden collapse of the star. The perturbations are…”
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14
Untwisting Magnetospheres of Neutron Stars
Published in The Astrophysical journal (20-09-2009)“…Magnetospheres of neutron stars are anchored in the rigid crust and can be twisted by sudden crustal motions ('starquakes'). The twisted magnetosphere does not…”
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15
REGULATION OF THE SPECTRAL PEAK IN GAMMA -RAY BURSTS
Published in The Astrophysical journal (20-02-2013)“…Observations indicate that the peak of a gamma-ray burst spectrum forms in the opaque region of an ultrarelativistic jet. Recent radiative transfer…”
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TORQUE ENHANCEMENT, SPIN EQUILIBRIUM, AND JET POWER FROM DISK-INDUCED OPENING OF PULSAR MAGNETIC FIELDS
Published in The Astrophysical journal (01-05-2016)“…ABSTRACT The interaction of a rotating star's magnetic field with a surrounding plasma disk lies at the heart of many questions posed by neutron stars in X-ray…”
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17
Radiative Turbulent Flares in Magnetically Dominated Plasmas
Published in The Astrophysical journal (01-11-2021)“…Abstract We perform 2D and 3D kinetic simulations of reconnection-mediated turbulent flares in a magnetized electron-positron plasma, with weak and strong…”
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18
Polarized X-Rays from Windy Accretion in Cygnus X-1
Published in Astrophysical journal. Letters (01-05-2023)“…Abstract Recent X-ray polarimetric data on the prototypical black hole X-ray binary Cyg X-1 from the Imaging X-ray Polarimetry Explorer present tight…”
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RADIATIVE TRANSFER MODELS FOR GAMMA-RAY BURSTS
Published in The Astrophysical journal (10-11-2016)“…ABSTRACT We present global radiative transfer models for heated relativistic jets. The simulations include all relevant radiative processes, starting deep in…”
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20
Heating of Magnetically Dominated Plasma by Alfvén-Wave Turbulence
Published in Physical review letters (18-02-2022)“…Magnetic energy around astrophysical compact objects can strongly dominate over plasma rest mass. Emission observed from these systems may be fed by…”
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