Search Results - "Salvesen, Greg"

Shock Speed, Cosmic Ray Pressure, and Gas Temperature in the Cygnus Loop by Salvesen, Greg, Raymond, John C, Edgar, Richard J

“…Upper limits on the shock speeds in supernova remnants can be combined with post-shock temperatures to obtain upper limits on the ratio of cosmic ray to gas…”
Get full text

An Electron-scattering Time Delay in Black Hole Accretion Disks by Salvesen, Greg

“…Abstract Universal to black hole X-ray binaries, the high-frequency soft lag gets longer during the hard-to-intermediate state transition, evolving from ≲1 to…”
Get full text

Origin of spin–orbit misalignments: the microblazar V4641 Sgr by Salvesen, Greg, Pokawanvit, Supavit

“…ABSTRACT Of the known microquasars, V4641 Sgr boasts the most severe lower limit (>52°) on the misalignment angle between the relativistic jet axis and the…”
Get full text

A physical model for state transitions in black hole X-ray binaries by Nixon, Chris, Salvesen, Greg

“…We present an accretion cycle which can explain state transitions and other observed phenomena in black hole X-ray binaries. This model is based on the process…”
Get full text

Black hole spin in X-ray binaries: giving uncertainties an f by Salvesen, Greg, Miller, Jonah M

“…ABSTRACT The two established techniques for measuring black hole spin in X-ray binaries often yield conflicting results, which must be resolved before either…”
Get full text

Accretion disc dynamo activity in local simulations spanning weak-to-strong net vertical magnetic flux regimes by Salvesen, Greg, Simon, Jacob B., Armitage, Philip J., Begelman, Mitchell C.

“…Strongly magnetized accretion discs around black holes have attractive features that may explain enigmatic aspects of X-ray binary behaviour. The structure and…”
Get full text

Strongly magnetized accretion discs require poloidal flux by Salvesen, Greg, Armitage, Philip J., Simon, Jacob B., Begelman, Mitchell C.

“…Motivated by indirect observational evidence for strongly magnetized accretion discs around black holes, and the novel theoretical properties of such…”
Get full text

Convective quenching of field reversals in accretion disc dynamos by Coleman, Matthew S. B., Yerger, Evan, Blaes, Omer, Salvesen, Greg, Hirose, Shigenobu

Get full text

Spectral hardening as a viable alternative to disc truncation in black hole state transitions by Salvesen, Greg, Miller, Jon M., Reis, Rubens C., Begelman, Mitchell C.

“…Constraining the accretion flow geometry of black hole binaries in outburst is complicated by the inability of simplified multicolour disc models to…”
Get full text

An Electron-Scattering Time Delay in Black Hole Accretion Disks by Salvesen, Greg

“…Universal to black hole X-ray binaries, the high-frequency soft lag gets longer during the hard-to-intermediate state transition, evolving from…”
Get full text

Quantifying energetics and dissipation in magnetohydrodynamic turbulence by Salvesen, Greg, Beckwith, Kris, Simon, Jacob B., O'Neill, Sean M., Begelman, Mitchell C.

“…We perform a suite of two- and three-dimensional magnetohydrodynamic (MHD) simulations with the athena code of the non-driven Kelvin–Helmholtz instability in…”
Get full text

Six-Day Footraces in the Post-Pedestrianism Era by Salvesen, Greg

“…In a six-day footrace, competitors accumulate as much distance as possible on foot over 144 consecutive hours by circumambulating a loop course. Now an obscure…”
Get full text

SHOCK SPEED, COSMIC RAY PRESSURE, AND GAS TEMPERATURE IN THE CYGNUS LOOP by Salvesen, Greg, Raymond, John C., Edgar, Richard J.

“…Upper limits on the shock speeds in supernova remnants can be combined with post-shock temperatures to obtain upper limits on the ratio of cosmic ray to gas…”
Get full text

Origin of Spin-Orbit Misalignments: The Microblazar V4641 Sgr by Salvesen, Greg, Pokawanvit, Supavit

“…Of the known microquasars, V4641 Sgr boasts the most severe lower limit (> 52{\deg}) on the misalignment angle between the relativistic jet axis and the binary…”
Get full text

Black Hole Spin in X-ray Binaries: Giving Uncertainties an $f by Salvesen, Greg, Miller, Jonah M

“…The two established techniques for measuring black hole spin in X-ray binaries often yield conflicting results, which must be resolved before either method may…”
Get full text

Rethinking Black Hole Accretion Discs by Salvesen, Greg

“…Accretion discs are staples of astrophysics. Tapping into the gravitational potential energy of the accreting material, these discs are highly efficient…”
Get full text

A physical model for state transitions in black hole X-ray binaries by Nixon, Chris, Salvesen, Greg

“…We present an accretion cycle which can explain state transitions and other observed phenomena in black hole X-ray binaries. This model is based on the process…”
Get full text

Convective Quenching of Field Reversals in Accretion Disc Dynamos by Coleman, Matthew S. B, Yerger, Evan, Blaes, Omer, Salvesen, Greg, Hirose, Shigenobu

“…Vertically stratified shearing box simulations of magnetorotational turbulence commonly exhibit a so-called butterfly diagram of quasi-periodic azimuthal field…”
Get full text

Strongly magnetized accretion discs require poloidal flux by Salvesen, Greg, Armitage, Philip J, Simon, Jacob B, Begelman, Mitchell C

“…Motivated by indirect observational evidence for strongly magnetized accretion discs around black holes, and the novel theoretical properties of such…”
Get full text

Accretion disc dynamo activity in local simulations spanning weak-to-strong net vertical magnetic flux regimes by Salvesen, Greg, Simon, Jacob B, Armitage, Philip J, Begelman, Mitchell C

“…Strongly magnetized accretion discs around black holes have attractive features that may explain enigmatic aspects of X-ray binary behaviour. The structure and…”
Get full text