39 citations · 89 across the 7 of their papers we have counts for
7 papers
Synchrotron radiation from NGC 470 HLX1 - a hidden hyperluminous accreting neutron star?
Tanuman Ghosh, Shiv Sethi, Gulab Chand Dewangan +3
We present the first broadband spectral analysis of NGC 470 HLX1, a hyperluminous X-ray source that exhibits significant flux variability over different epochs. We investigate the…
MHD Simulations of Magnetospheric Accretion, Ejection and Plasma-field Interaction
M. M. Romanova, R. V. E. Lovelace, M. Bachetti +5
We review recent axisymmetric and three-dimensional (3D) magnetohydrodynamic (MHD) numerical simulations of magnetospheric accretion, plasma-field interaction and outflows from the…
Oscillations of the Boundary Layer and High-frequency QPOs
A. A. Blinova, M. Bachetti, M. M. Romanova
We observed persistent high-frequency oscillations of the boundary layer near an accreting, weakly-magnetized star in global 3D MHD simulations. The tilted dipole magnetic field is…
The Moving Hotspots model for kHz QPOs in accreting neutron stars
Matteo Bachetti, Marina Romanova
3D MHD simulation of accretion onto neutron stars have shown in the last few years that the footprint (hotspot) of the accretion flow changes with time. Two different kinds of accr…
Timing of the accreting millisecond pulsar IGR~J17511--3057
A. Riggio, A. Papitto, L. Burderi +5
{Timing analysis of Accretion-powered Millisecond Pulsars (AMPs) is a powerful tool to probe the physics of compact objects. The recently discovered \newigrj is the 12 discovered o…
3D MHD Simulations of accreting neutron stars: evidence of QPO emission from the surface
Matteo Bachetti, Marina Romanova, Akshay Kulkarni +3
3D Magnetohydrodynamic simulations show that when matter accretes onto neutron stars, in particular if the misalignment angle is small, it does not constantly fall at a fixed spot.…
QPO emission from moving hot spots on the surface of neutron stars: a model
Matteo Bachetti, Marina Romanova, Akshay Kulkarni +2
We present recent results of 3D magnetohydrodynamic simulations of neutron stars with small misalignment angles, as regards the features in lightcurves produced by regular movement…