output
19952026
most citedPlanck 2015 results. XIII. Cosmological parameters

10.6k citations

Showing 2012 · astro-ph.HEShow all

28 papers · 2 filters

astro-ph.HE2012★ 2 cited

Colliding wind binaries and gamma-ray binaries : relativistic version of the RAMSES code

Astrid Lamberts, Guillaume Dubus, Sebastien Fromang +1

Gamma-ray binaries are colliding wind binaries (CWB) composed of a massive star a non-accreting pulsar with a highly relativistic wind. Particle acceleration at the shocks results…

astro-ph.HE2012★ 200 cited

Measurement of the extragalactic background light imprint on the spectra of the brightest blazars observed with H.E.S.S

H. E. S. S. Collaboration, :, A. Abramowski +195

The extragalactic background light (EBL) is the diffuse radiation with the second highest energy density in the Universe after the cosmic microwave background. The aim of this stud…

astro-ph.HE2012★ 40 cited

Identification of HESS J1303-631 as a Pulsar Wind Nebula through gamma-ray, X-ray and radio observations

The H. E. S. S. Collaboration, :, A. Abramowski +196

The previously unidentified very high-energy (VHE; E > 100 GeV) γ-ray source HESS J1303-631, discovered in 2004, is re-examined including new data from the H.E.S.S. Cherenkov teles…

astro-ph.HE2012★ 116 cited

The magnetorotational instability as a jet launching mechanism

Geoffroy Lesur, Jonathan Ferreira, Gordon Ogilvie

Magnetorotational turbulence and magnetically driven disc winds are often considered as separate processes. However, realistic astrophysical discs are expected to be subject to bot…

astro-ph.HE2012★ 144 cited

Multiwavelength campaign on Mrk 509 XII. Broad band spectral analysis

P. -O. Petrucci, S. Paltani, J. Malzac +12

(Abridged) The simultaneous UV to X-rays/gamma rays data obtained during the multi-wavelength XMM/INTEGRAL campaign on the Seyfert 1 Mrk 509 are used in this paper and tested again…

astro-ph.HE2012★ 28 cited

Binaries with the eyes of CTA

J. M. Paredes, W. Bednarek, P. Bordas +20

The binary systems that have been detected in gamma rays have proven very useful to study high-energy processes, in particular particle acceleration, emission and radiation reproce…

astro-ph.HE2012★ 93 cited

Probing the extent of the non-thermal emission from the Vela X region at TeV energies with H.E.S.S

A. Abramowski, F. Acero, F. Aharonian +196

Vela X is a region of extended radio emission in the western part of the Vela constellation: one of the nearest pulsar wind nebulae (PWNe), and associated with the energetic Vela p…

astro-ph.HE2012★ 151 cited

Local outflows from turbulent accretion disks

Sebastien Fromang, Henrik N. Latter, Geoffroy Lesur +1

The aim of this paper is to investigate the properties of accretion disks threaded by a weak vertical magnetic field, with a particular focus on the interplay between MHD turbulenc…

astro-ph.HE2012★ 28 cited

Discovery of gamma-ray emission from the extragalactic pulsar wind nebula N157B with the High Energy Stereoscopic System

HESS Collaboration, A. Abramowski, F. Acero +195

We present the significant detection of the first extragalactic pulsar wind nebula (PWN) detected in gamma rays, N157B, located in the large Magellanic Cloud (LMC). Pulsars with hi…

astro-ph.HE2012★ 57 cited

Particle acceleration and non-thermal emission during the V407 Cygni nova outburst

Pierrick Martin, Guillaume Dubus

On March 2010, the symbiotic binary V407 Cyg erupted as a result of a nova explosion. The event gave rise to a two-week long burst of >100MeV gamma-rays detected by Fermi/LAT, a un…

astro-ph.HE2012★ 87 cited

Surveys with the Cherenkov Telescope Array

G. Dubus, J. L. Contreras, S. Funk +9

Surveys open up unbiased discovery space and generate legacy datasets of long-lasting value. One of the goals of imaging arrays of Cherenkov telescopes like CTA is to survey areas…

astro-ph.HE2012★ 31 cited

Pulsed high energy gamma-rays from thermal populations in the current sheets of pulsar winds

Ioanna Arka, Guillaume Dubus

Context. More than one hundred GeV pulsars have been detected up to now by the LAT telescope on the Fermi gamma-ray observatory, showing peak energies around a few GeV. Current mod…

astro-ph.HE2012★ 14 cited

The initial conditions of star formation: cosmic rays as the fundamental regulators

Padelis P. Papadopoulos, Wing-Fai Thi

Cosmic rays (CRs) control the thermal, ionization and chemical state of the dense H_2 gas regions that otherwise remain shielded from far-UV and optical stellar radiation propagati…

astro-ph.HE2012★ 16 cited

Multiwavelength campaign on Mrk 509: Reverberation of the Fe Kalpha line

G. Ponti, M. Cappi, E. Costantini +17

We report on a detailed study of the Fe K emission/absorption complex in the nearby, bright Seyfert 1 galaxy Mrk 509. The study is part of an extensive XMM-Newton monitoring consis…

astro-ph.HE2012★ 139 cited

Revisiting a fundamental test of the disc instability model for X-ray binaries

M. Coriat, R. P. Fender, G. Dubus

We revisit a core prediction of the disc instability model (DIM) applied to X-ray binaries. The model predicts the existence of a critical mass transfer rate, which depends on disc…

astro-ph.HE2012★ 50 cited

Particle transport and heating in the microturbulent precursor of relativistic shocks

Illya Plotnikov, Guy Pelletier, Martin Lemoine

Collisionless relativistic shocks have been the focus of intense theoretical and numerical investigations in recent years. The acceleration of particles, the generation of electrom…

astro-ph.HE2012★ 93 cited

Particle acceleration in relativistic outflows

Andrei Bykov, Neil Gehrels, Henric Krawczynski +3

In this review we confront the current theoretical understanding of particle acceleration at relativistic outflows with recent observational results on various source classes thoug…

astro-ph.HE2012★ 26 cited

Galactic annihilation emission from nucleosynthesis positrons

P. Martin, A. W. Strong, P. Jean +2

The Galaxy hosts a widespread population of low-energy positrons revealed by successive generations of gamma-ray telescopes through a bright annihilation emission from the bulge re…

astro-ph.HE2012★ 84 cited

Spectral analysis and interpretation of the γ-ray emission from the Starburst galaxy NGC 253

H. E. S. S. Collaboration, A. Abramowski, F. Acero +192

Very-high-energy (VHE; E >100 GeV) and high-energy (HE; 100 MeV < E < 100 GeV) data from γ-ray observations performed with the H.E.S.S. telescope array and the Fermi-LAT instrument…

astro-ph.HE2012★ 25 cited

H.E.S.S. observations of the Carina nebula and its enigmatic colliding wind binary Eta Carinae

HESS Collaboration, A. Abramowski, F. Acero +191

The massive binary system Eta Carinae and the surrounding HII complex, the Carina Nebula, are potential particle acceleration sites from which very-high-energy (VHE; E > 100 GeV) γ…

astro-ph.HE2012★ 34 cited

Discovery of VHE γ-ray emission and multi-wavelength observations of the BL Lac object 1RXS J101015.9-311909

HESS Collaboration, A. Abramowski, F. Acero +191

1RXS J101015.9-311909 is a galaxy located at a redshift of z=0.14 hosting an active nucleus belonging to the class of bright BL Lac objects. Observations at high (HE, E > 100 MeV)…

astro-ph.HE2012★ 39 cited

Discovery of VHE emission towards the Carina arm region with the H.E.S.S. telescope array: HESS J1018-589

HESS Collaboration, A. Abramowski, F. Acero +195

The observational coverage with HESS of the Carina region in VHE gamma-rays benefits from deep exposure (40 h) of the neighboring open cluster Westerlund 2. The observations have r…

astro-ph.HE2012★ 83 cited

Long-term monitoring of the high-energy gamma-ray emission from LS I +61° 303 and LS 5039

D. Hadasch, D. F. Torres, T. Tanaka +15

The Fermi Large Area Telescope (LAT) reported the first definitive GeV detections of the binaries LS I +61\degree 303 and LS 5039 in the first year after its launch in June, 2008.…

astro-ph.HE2012

Linearly polarized superluminal waves in pulsar winds

Ioanna Arka, John G. Kirk

Pulsar winds are the ideal environment for the study of non-linear electromagnetic waves. It is generally thought that a pulsar launches a striped wind, a magnetohydrodynamic entro…