activity
19972012
most citedVAST: An ASKAP Survey for Variables and Slow Transients

117 citations · 279 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.IM2012★ 117 cited

VAST: An ASKAP Survey for Variables and Slow Transients

Tara Murphy, Shami Chatterjee, David L. Kaplan +36

The Australian Square Kilometre Array Pathfinder (ASKAP) will give us an unprecedented opportunity to investigate the transient sky at radio wavelengths. In this paper we present V…

astro-ph.HE2010

Thin accretion discs around millisecond X-ray pulsars

Solomon Belay Tessema, Ulf Torkelsson

Millisecond x-ray pulsars have weak magnetic dipole moments of \,T\,m compared to ordinary X-ray pulsars with dipole moments of \,T\,m. For this reas…

astro-ph.HE2009

The structure of thin accretion discs around magnetised stars

Solomon Belay Tessema, Ulf Torkelsson

Aims: We determine the steady-state of an axisymmetric thin accretion disc with an internal dynamo around a magnetised star. Methods: Starting from the vertically integrated equati…

astro-ph2008★ 27 cited

Oscillations of tori in the pseudo-Newtonian potential

Eva Sramkova, Ulf Torkelsson, Marek A. Abramowicz

Context. The high-frequency quasi-periodic oscillations (HF QPOs) in neutron star and stellar-mass black hole X-ray binaries may be the result of a resonance between the radial and…

astro-ph2007★ 54 cited

Epicyclic Oscillations of Fluid Bodies: Newtonian Nonslender Torus

Omer M. Blaes, Eva Sramkova, Marek A. Abramowicz +2

We study epicyclic oscillations of fluid tori around black holes (in the Paczynski-Wiita potential) and derive exact analytic expressions for their radial and vertical eigenfrequen…

astro-ph2003★ 14 cited

Propagation of non-linear circularly polarised Alfven waves in a homogeneous medium

Rim Turkmani, Ulf Torkelsson

We study the evolution of non-linear circularly polarised Alfven waves by solving numerically the time-dependent equations of magnetohydrodynamics (MHD) in one dimension. We examin…