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19922026
Showing 2014 · astro-ph.HEShow all

10 papers · 2 filters

astro-ph.HE2014★ 6 cited

Numerical Simulations of Mach Stem Formation via Intersecting Bow Shocks

Edward C. Hansen, Adam Frank, Patrick Hartigan

Hubble Space Telescope observations show bright knots of H emission within outflowing young stellar jets. Velocity variations in the flow create secondary bow shocks that may in…

astro-ph.HE2014★ 12 cited

MHD Effects on Pulsed YSO Jets. I. 2.5-D Simulations

Edward C. Hansen, Adam Frank, Patrick Hartigan

In this paper we explore the dynamics of radiative axisymmetric MHD jets at high resolution using AMR methods. The goal of the study is to determine both the dynamics and emission…

astro-ph.HE2014★ 14 cited

Creation of Magnetized Jet Using a Ring of Laser Beams

Wen Fu, Edison P. Liang, Petros Tzeferacos +1

We propose a new way of generating magnetized supersonic jets using a ring laser to irradiate a flat surface target. Using 2D FLASH code simulations which include the Biermann Batt…

astro-ph.HE2014★ 31 cited

Compton scattering in strong magnetic fields: Spin-dependent influences at the cyclotron resonance

Peter L. Gonthier, Matthew G. Baring, Matthew T. Eiles +3

The quantum electrodynamical (QED) process of Compton scattering in strong magnetic fields is commonly invoked in atmospheric and inner magnetospheric models of x-ray and soft gamm…

astro-ph.HE2014★ 17 cited

Magnetic Pair Creation Transparency in Gamma-Ray Pulsars

Sarah A. Story, Matthew G. Baring

Magnetic pair creation has been at the core of radio pulsar paradigms and central to polar cap models of gamma-ray pulsars for over three decades. The Fermi gamma-ray…

astro-ph.HE2014★ 67 cited

Quasi-Periodic Oscillations in Short Recurring Bursts of the Soft-Gamma Repeater J1550-5418

Daniela Huppenkothen, Caroline D'Angelo, Anna L. Watts +11

The discovery of quasi-periodic oscillations (QPOs) in magnetar giant flares has opened up prospects for neutron star asteroseismology. The scarcity of giant flares makes a search…

astro-ph.HE2014★ 20 cited

Magnetic Field Amplification and Flat Spectrum Radio Quasars

Xuhui Chen, Ritaban Chatterjee, Haocheng Zhang +10

We perform time-dependent, spatially-resolved simulations of blazar emission to evaluate several flaring scenarios related to magnetic-field amplification and enhanced particle acc…

astro-ph.HE2014★ 32 cited

An Observed Correlation Between Thermal and Non-Thermal Emission in Gamma-Ray Bursts

J. Michael Burgess, Robert D. Preece, Felix Ryde +22

Recent observations by the Gamma-ray Space Telescope have confirmed the existence of thermal and non-thermal components in the prompt photon spectra of some Gamma-ray burst…

astro-ph.HE2014★ 39 cited

Time resolved spectroscopy of SGR J1550-5418 bursts detected with Fermi/GBM

G. Younes, C. Kouveliotou, A. J. van der Horst +18

We report on time-resolved spectroscopy of the 63 brightest bursts of SGR J1550-5418, detected with Fermi/Gamma-ray Burst Monitor during its 2008-2009 intense bursting episode. We…

astro-ph.HE2014★ 131 cited

GRB 120422A/SN 2012bz: Bridging the Gap between Low- And High-Luminosity GRBs

S. Schulze, D. Malesani, A. Cucchiara +62

At low redshift, a handful of gamma-ray bursts (GRBs) have been discovered with peak luminosities () substantially lower than the average…