Showing 2012 · astro-ph.HEShow all

57 papers · 2 filters

astro-ph.HE2012★ 99 cited

Multiwavelength observations of GRB 110731A: GeV emission from onset to afterglow

LAT Collaboration, GBM Collaboration, Swift Collaboration +2

We report on the multiwavelength observations of the bright, long gamma-ray burst \GRB, by the \Fermi and \Swift observatories, and by the MOA and GROND optical telescopes. The ana…

astro-ph.HE2012★ 21 cited

Fermi-LAT and Suzaku Observations of the Radio Galaxy Centaurus B

J. Katsuta, Y. T. Tanaka, L. Stawarz +8

Centaurus B is a nearby radio galaxy positioned in the Southern hemisphere close to the Galactic plane. Here we present a detailed analysis of about 43 months of accumulated Fermi-…

astro-ph.HE2012★ 2 cited

The strange case of HESS J0632+057 and the γ-ray High Mass X-ray Binaries

G. A. Caliandro, A. B. Hill

In the last decade Cherenkov telescopes on the ground and space-based γ-ray instruments have identified a new class of high mass X-ray binaries (HMXB), whose emission is dominated…

astro-ph.HE2012★ 115 cited

Binary Millisecond Pulsar Discovery via Gamma-Ray Pulsations

H. J. Pletsch, L. Guillemot, H. Fehrmann +150

Millisecond pulsars, old neutron stars spun-up by accreting matter from a companion star, can reach high rotation rates of hundreds of revolutions per second. Until now, all such "…

astro-ph.HE2012★ 5 cited

The Fermi LAT view of Cygnus: a laboratory to understand cosmic-ray acceleration and transport

L. Tibaldo, I. A. Grenier

Cygnus X is a conspicuous massive-star forming region in the Local Arm of the Galaxy at ~1.4 kpc from the solar system. Gamma-ray observations can be used to trace cosmic rays (CRs…

astro-ph.HE2012★ 16 cited

Observations of the magnetars 4U 0142+61 and 1E 2259+586 with the MAGIC telescopes

The MAGIC Collaboration, J. Aleksić, L. A. Antonelli +153

Magnetars are an extreme, highly magnetized class of isolated neutron stars whose large X-ray luminosity is believed to be driven by their high magnetic field. In this work we stud…