output
19942026
Showing 2011 · astro-ph.HEShow all

7 papers · 2 filters

astro-ph.HE2011★ 67 cited

A minor body falling onto a neutron star as an explanation for the unusual gamma-ray burst GRB 101225A

S. Campana, G. Lodato, P. D'Avanzo +17

The tidal disruption of a solar mass star around a supermassive black hole has been extensively studied analytically and numerically. In these events the star develops into an elon…

astro-ph.HE2011★ 11 cited

VLBI observations of SN2011dh: imaging of the youngest radio supernova

I. Marti-Vidal, V. Tudose, Z. Paragi +11

We report on the VLBI detection of supernova SN2011dh at 22GHz using a subset of the EVN array. The observations took place 14 days after the discovery of the supernova, thus resul…

astro-ph.HE2011★ 47 cited

Magnetar Oscillations II: spectral method

Maarten van Hoven, Yuri Levin

The seismological dynamics of magnetars is largely determined by a strong hydro-magnetic coupling between the solid crust and the fluid core. In this paper we set up a "spectral" c…

astro-ph.HE2011★ 126 cited

Magnetic Fields, Relativistic Particles, and Shock Waves in Cluster Outskirts

M. Bruggen, A. Bykov, D. Ryu +1

It is only now, with low-frequency radio telescopes, long exposures with high-resolution X-ray satellites and gamma-ray telescopes, that we are beginning to learn about the physics…

astro-ph.HE2011★ 23 cited

A Lower Limit on the Halo Mass to form Supermassive Black Holes

Calanit Dotan, Elena M. Rossi, Nir J. Shaviv

We consider a scenario where supermassive black holes form through direct accumulation of gas at the centre of proto-galaxies. In the first stage, the accumulated gas forms a super…

astro-ph.HE2011★ 65 cited

On the excitation of f-modes and torsional modes by magnetar giant flares

Yuri Levin, Maarten van Hoven

Magnetar giant flares may excite vibrational modes of neutron stars. Here we compute an estimate of initial post-flare amplitudes of both the torsional modes in the magnetar's crus…