Zobrazeno 1 - 10
of 307
pro vyhledávání: '"Macfadyen, Andrew"'
We demonstrate that gas disks around binary systems might deliver gas to the binary components only when the circumbinary disk is relatively warm. We present new grid-based hydrodynamics simulations, performed with the binary on the grid and a locall
Externí odkaz:
http://arxiv.org/abs/2410.03830
Autor:
DuPont, Marcus, MacFadyen, Andrew
We consider the observational implications of the binary neutron star (BNS) merger GW170817 leaving behind a rapidly rotating massive neutron star that launches a relativistic, equatorial outflow as well as a jet. We show that if the equatorial outfl
Externí odkaz:
http://arxiv.org/abs/2405.20329
Autor:
DeLaurentiis, Stanislav, Haiman, Zoltan, Westernacher-Schneider, John Ryan, Krauth, Luke Major, Davelaar, Jordy, Zrake, Jonathan, MacFadyen, Andrew
Recent hydrodynamical simulations have shown that circumbinary gas disks drive the orbits of binary black holes to become eccentric, even when general relativistic corrections to the orbit are significant. Here, we study the general relativistic (GR)
Externí odkaz:
http://arxiv.org/abs/2405.07897
We show that strong bow shocks are turbulent and non-universal near the head, but asymptote to a universal steady, self-similar, and analytically solvable flow in the downstream. The turbulence is essentially 3D, and has been confirmed by a 3D simula
Externí odkaz:
http://arxiv.org/abs/2401.18080
State-of-the-art surveys reveal that most massive stars in the universe evolve in close binaries. Massive stars in such systems are expected to develop aspherical envelopes due to tidal interactions and/or rotational effects. Recently, it was shown t
Externí odkaz:
http://arxiv.org/abs/2310.20692
Autor:
Krauth, Luke Major, Davelaar, Jordy, Haiman, Zoltán, Westernacher-Schneider, John Ryan, Zrake, Jonathan, MacFadyen, Andrew
Self-lensing flares (SLFs) are expected to be produced once or twice per orbit by an accreting massive black hole binary (MBHB), if the eclipsing MBHBs are observed close to edge-on. SLFs can provide valuable electromagnetic (EM) signatures to accomp
Externí odkaz:
http://arxiv.org/abs/2310.19766
Autor:
DuPont, Marcus, MacFadyen, Andrew
We consider the dynamics of an equatorial explosion powered by a millisecond magnetar formed from the core collapse of a massive star. We study whether these outflows -- generated by a priori magneto-centrifugally-driven, relativistic magnetar winds
Externí odkaz:
http://arxiv.org/abs/2309.15347
Publikováno v:
The Astrophysical Journal, 962:76 (17pp), 2024 February 10
We show that gas disks around the components of an orbiting binary system (so-called minidisks) may be susceptible to a resonant instability which causes the minidisks to become significantly eccentric. Eccentricity is injected by, and also induces,
Externí odkaz:
http://arxiv.org/abs/2307.01154
Autor:
Krauth, Luke Major, Davelaar, Jordy, Haiman, Zoltán, Westernacher-Schneider, John Ryan, Zrake, Jonathan, MacFadyen, Andrew
The upcoming Laser Interferometer Space Antenna (LISA) is expected to detect gravitational waves (GWs) from massive black hole binaries (MBHB). Finding the electromagnetic (EM) counterparts for these GW events will be crucial for understanding how an
Externí odkaz:
http://arxiv.org/abs/2304.02575
Synchrotron and inverse Compton emission successfully explain the observed spectra of gamma-ray burst (GRB) afterglows. It is thought that most GRBs are products of extremely relativistic outflows and the afterglow marks the interaction of that eject
Externí odkaz:
http://arxiv.org/abs/2304.00044