output
19932026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations

Showing 2012 · astro-ph.HEShow all

14 papers · 2 filters

astro-ph.HE2012★ 6 cited

Polarization transfer in relativistic magnetized plasmas

Jean Heyvaerts, Christophe Pichon, Simon Prunet +1

The polarization transfer coefficients of a relativistic magnetized plasma are derived. These results apply to any momentum distribution function of the particles, isotropic or ani…

astro-ph.HE2012★ 158 cited

Chandra-HETGS Observations of the Brightest Flare Seen from Sgr A*

M. A. Nowak, J. Neilsen, S. B. Markoff +10

Starting in 2012, we began an unprecedented observational program focused on the supermassive black hole in the center of our Galaxy, Sgr A*, utilizing the High Energy Transmission…

astro-ph.HE2012★ 83 cited

Modeling optical and UV polarization of AGNs II. Polarization imaging and complex reprocessing

F. Marin, R. W. Goosmann, C. M. Gaskell +2

We model the spectropolarimetric signature resulting from the radiative coupling between the innermost parts of active galactic nuclei (AGNs). We use a new public version of STOKES…

astro-ph.HE2012★ 124 cited

A Suzaku survey of Fe K lines in Seyfert 1 AGN

A. R. Patrick, J. N. Reeves, D. Porquet +3

We construct full broadband models in an analysis of Suzaku observations of nearby Seyfert 1 AGN (z<0.2) with exposures >50ks and with greater than 30000 counts in order to study t…

astro-ph.HE2012★ 16 cited

X-ray polarimetry as a new tool to discriminate reflection from absorption scenarios -- Predictions for MCG-6-30-15

F. Marin, R. W. Goosmann, M. Dovciak +5

We present modelling of X-ray polarisation spectra emerging from the two competing scenarios that are proposed to explain the broad Fe Kα line in the Seyfert 1 galaxy MCG-6-30-15.…

astro-ph.HE2012★ 29 cited

Detection Potential of the KM3NeT Detector for High-Energy Neutrinos from the Fermi Bubbles

The KM3NeT Collaboration

A recent analysis of the Fermi Large Area Telescope data provided evidence for a high-intensity emission of high-energy gamma rays with a E^-2 spectrum from two large areas, spanni…

astro-ph.HE2012★ 67 cited

The X-ray lightcurve of Sgr A* over the past 150 years inferred from Fe-Ka line reverberation in Galactic Centre molecular clouds

R. Capelli, R. S. Warwick, D. Porquet +2

We examine the temporal and spectral properties of nine Fe-Ka bright molecular clouds within about 30 pc of Sgr A*, in order to understand and constrain the primary energising sour…

astro-ph.HE2012★ 18 cited

Characterization of the X-ray light curve of the gamma Cas-like B1e star HD110432

Myron A. Smith, Raimundo Lopes de Oliveira, Christian Motch

HD 110432 (BZ Cru; B1Ve) is the brightest member of a small group of "gamma Cas analogs" that emit copious hard X-ray flux, punctuated by ubiquitous "flares." To characterize the X…

astro-ph.HE2012★ 15 cited

The peculiar isolated neutron star in the Carina Nebula - Deep XMM-Newton and ESO-VLT observations of 2XMM J104608.7-594306

Adriana Mancini Pires, Christian Motch, Roberto Turolla +5

While fewer in number than the dominant rotation-powered radio pulsar population, peculiar classes of isolated neutron stars (INSs) -- which include magnetars, the ROSAT-discovered…

astro-ph.HE2012★ 71 cited

High-energy emission from the pulsar striped wind: a synchrotron model for gamma-ray pulsars

J. Pétri

(abridged) Gamma-ray pulsars constitute a class of high and very high-energy emitters for which the known population is steadily increasing thanks to the Fermi/Large Area Telescope…

astro-ph.HE2012★ 48 cited

A First Search for coincident Gravitational Waves and High Energy Neutrinos using LIGO, Virgo and ANTARES data from 2007

The ANTARES Collaboration, the LIGO Scientific Collaboration, the Virgo Collaboration +959

We present the results of the first search for gravitational wave bursts associated with high energy neutrinos. Together, these messengers could reveal new, hidden sources that are…

astro-ph.HE2012★ 35 cited

An Inverse Compton Scattering Origin of X-ray Flares from Sgr A*

F. Yusef-Zadeh, M. Wardle, K. Dodds-Eden +6

The X-ray and near-IR emission from Sgr A* is dominated by flaring, while a quiescent component dominates the emission at radio and sub-mm wavelengths. The spectral energy distribu…

astro-ph.HE2012★ 14 cited

Search for a correlation between ANTARES neutrinos and Pierre Auger Observatory UHECRs arrival directions

ANTARES collaboration

This paper presents a search for correlation in the arrival directions of 2190 neutrino candidate events detected in 2007-2008 by the ANTARES telescope, and 69 ultra-high energy co…

astro-ph.HE2012★ 49 cited

The relationship between gamma Cassiopeiae's X-ray emission and its circumstellar environment

M. A. Smith, R. Lopes de Oliveira, C. Motch +17

γCas is the prototypical classical Be star and is best known for its variable hard X-ray emission. To elucidate the reasons for this emission, we mounted a multiwavelength campaign…