Search Results - "Cavecchi, Yuri"
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Flame propagation on the surfaces of rapidly rotating neutron stars during Type I X-ray bursts
Published in Monthly notices of the Royal Astronomical Society (01-10-2013)“…We present the first vertically resolved hydrodynamic simulations of a laterally propagating, deflagrating flame in the thin helium ocean of a rotating…”
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2
On the Dependence of the X-Ray Burst Rate on Accretion and Spin Rate
Published in The Astrophysical journal (10-12-2017)“…Nuclear burning and its dependence on the mass accretion rate are fundamental ingredients for describing the complicated observational phenomenology of neutron…”
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3
Rotational effects in thermonuclear type I bursts: equatorial crossing and directionality of flame spreading
Published in Monthly notices of the Royal Astronomical Society (21-03-2015)“…In a previous study on thermonuclear (type I) bursts on accreting neutron stars, we addressed and demonstrated the importance of the effects of rotation,…”
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4
A “Hyperburst” in the MAXI J0556–332 Neutron Star: Evidence for a New Type of Thermonuclear Explosion
Published in The Astrophysical journal (01-07-2022)“…Abstract The study of transiently accreting neutron stars provides a powerful means to elucidate the properties of neutron star crusts. We present extensive…”
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5
Burning in the Tail: Implications for a Burst Oscillation Model
Published in The Astrophysical journal (20-01-2019)“…Accreting neutron stars (NSs) can exhibit high-frequency modulations, known as burst oscillations, in their light curves during thermonuclear X-ray bursts…”
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6
Dynamics of Laterally Propagating Flames in X-Ray Bursts. I. Burning Front Structure
Published in The Astrophysical journal (01-05-2020)“…We investigate the structure of laterally propagating flames through the highly stratified burning layer in an X-ray burst. Two-dimensional hydrodynamics…”
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NICER Observations of Thermonuclear Bursts from 4U 1728-34: Detection of Oscillations prior to the Onset of Two Bursts
Published in The Astrophysical journal (01-11-2023)“…Abstract We present temporal and time-resolved spectral analyses of all the thermonuclear X-ray bursts observed from the neutron star low-mass X-ray binary 4U…”
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Three-dimensional Instability of Flame Fronts in Type I X-Ray Bursts
Published in The Astrophysical journal (10-09-2019)“…We present the first realistic 3D simulations of flame front instabilities during type I X-ray bursts. The unperturbed front is characterized by the balance…”
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9
The peculiar behaviour of burst oscillations in the accreting millisecond X-ray pulsar XTE J1814−338
Published in Monthly notices of the Royal Astronomical Society (01-02-2022)“…ABSTRACT Accreting millisecond X-ray pulsars (AMXPs) show burst oscillations during thermonuclear explosions of the accreted plasma that are markedly different…”
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10
Fast and slow magnetic deflagration fronts in type I X-ray bursts
Published in Monthly notices of the Royal Astronomical Society (21-06-2016)“…Type I X-ray bursts are produced by thermonuclear runaways that develop on accreting neutron stars. Once one location ignites, the flame propagates across the…”
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Modelling correlated variability in accreting black holes: the effect of high density and variable ionization on reverberation lags
Published in Monthly notices of the Royal Astronomical Society (01-10-2021)“…ABSTRACT We present a new release of the reltrans model to fit the complex cross-spectrum of accreting black holes as a function of energy. The model accounts…”
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12
Dense matter with eXTP
Published in Science China. Physics, mechanics & astronomy (01-02-2019)“…In this White Paper we present the potential of the Enhanced X-ray Timing and Polarimetry (eXTP) mission for determining the nature of dense matter; neutron…”
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13
A numerical magnetohydrodynamic scheme using the hydrostatic approximation
Published in Monthly notices of the Royal Astronomical Society (21-12-2012)“…ABSTRACT In gravitationally stratified fluids, length scales are normally much greater in the horizontal direction than in the vertical one. When modelling…”
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14
Flame propagation on the surfaces of rapidly rotating neutron stars during Type IX-ray bursts
Published in Monthly notices of the Royal Astronomical Society (01-10-2013)“…We present the first vertically resolved hydrodynamic simulations of a laterally propagating, deflagrating flame in the thin helium ocean of a rotating…”
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15
The Peculiar Behavior of Burst Oscillations in the Accreting Millisecond X-ray Pulsar XTE J1814-338
Published 01-12-2021“…Accreting millisecond X-ray pulsars (AMXPs) show burst oscillations during thermonuclear explosions of the accreted plasma which are markedly different from…”
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16
The effect of opacity on neutron star Type I X-ray burst quenching
Published 14-11-2024“…One long standing tension between theory and observations of Type I X-ray burst is the accretion rate at which the burst disappear due to stabilization of the…”
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Discovery of Burst Oscillations in the Intermittent Accretion-Powered Millisecond Pulsar HETE J1900.1-2455
Published in The Astrophysical journal (20-06-2009)Get full text
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18
Stationary neutron star envelopes at high accretion rates
Published 20-03-2024“…In this work we model stationary neutron star envelopes at high accretion rates and describe our new code for such studies. As a first step we put special…”
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19
Three-dimensional instability of flame fronts in type I X-ray bursts
Published 31-05-2019“…We present the first realistic 3D simulations of flame front instabilities during type I X-ray bursts. The unperturbed front is characterised by the balance…”
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Mass-loss, composition and observational signatures of stellar winds from X-ray bursts
Published 15-11-2024“…X-Ray bursts (XRBs) are powerful thermonuclear events on the surface of accreting neutron stars (NSs), which can synthesize intermediate-mass elements…”
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