10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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- University of GenevaCH577 papers
42 papers · 2 filters
Kinetic modeling of the electromagnetic precursor from an axisymmetric binary pulsar coalescence
Benjamin Crinquand, Benoît Cerutti, Guillaume Dubus
The recent detection of gravitational waves associated with a binary neutron star merger revives interest in interacting pulsar magnetospheres. Current models predict that a signif…
Accretion in Strong Field Gravity with eXTP
Alessandra De Rosa, Phil Uttley, Lijun Gou +99
In this paper we describe the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to accretion flows in the strong field gravity regime around…
High-energy monitoring of NGC 4593 II. Broadband spectral analysis: testing the two-corona model
R. Middei, S. Bianchi, P. -O. Petrucci +9
It is widely believed that the primary X-ray emission of AGN is due to the Comptonisation of optical-UV photons from a hot electron corona, while the origin of the 'soft-excess' is…
Magnetic wind-driven accretion in dwarf novae
Nicolas Scepi, Guillaume Dubus, Geoffroy Lesur
Dwarf novae (DNe) and X-ray binaries exhibit outbursts thought to be due to a thermal-viscous instability in the accretion disk. The disk instability model (DIM) assumes that accre…
The Collimated Radiation in SS 433. Constraints from Spatially Resolved Optical Jets and Modeling of the Optical Bullets
Idel Waisberg, Jason Dexter, Pierre Olivier-Petrucci +2
The microquasar SS 433 is well-known for its precessing, relativistic baryonic jets. Depending on their heating mechanism, the optical jet bullets may serve as a probe of the colli…
Photoionized emission and absorption features in the high-resolution X-ray spectra of NGC 3783
Junjie Mao, M. Mehdipour, J. S. Kaastra +14
Our Swift monitoring program triggered two joint XMM-Newton, NuSTAR and HST observations on 11 and 21 December 2016 targeting NGC 3783, as its soft X-ray continuum was heavily obsc…
Particle Transport within the Pulsar Wind Nebula HESS J1825-137
H. E. S. S. Collaboration, H. Abdalla, F. Aharonian +225
Aims: We present a detailed view of the pulsar wind nebula (PWN) HESS J1825-137. We aim to constrain the mechanisms dominating the particle transport within the nebula, accounting…
Gamma-ray pulsars: What have we learned from ab-initio kinetic simulations?
Benoît Cerutti
The origin of the pulsed gamma-ray emission in pulsars remains an open issue. The combination of sensitive observations in the GeV domain by AGILE and {\em Fermi}-LAT and increasin…
Chandra Observations of NuSTAR Serendipitous Sources near the Galactic Plane
John A. Tomsick, George B. Lansbury, Farid Rahoui +8
The NuSTAR serendipitous survey has already uncovered a large number of Active Galactic Nuclei (AGN), providing new information about the composition of the Cosmic X-ray Background…
The Curious Case of Swift J1753.5-0127: A Black Hole Low-mass X-ray Binary Analogue to Z Cam Type Dwarf Novae
A. W. Shaw, B. E. Tetarenko, G. Dubus +5
Swift J1753.5-0127 (J1753) is a candidate black hole low-mass X-ray binary (BH-LMXB) that was discovered in outburst in May 2005. It remained in outburst for years, exhibi…
Gravitoturbulent dynamos in astrophysical discs
A. Riols, H. Latter
The origin of large-scale and coherent magnetic fields in astrophysical discs is an important and long standing problem. Researchers commonly appeal to a turbulent dynamo, sustaine…
Modelling the compact jet in MAXI J1836-194 with disc-driven shocks
Mathias Péault, Julien Malzac, Mickael Coriat +9
The black hole candidate MAXI J1836-194 was discovered in 2011 when it went into an outburst, and was the subject of numerous, quasi-simultaneous, multi-wavelength observations in…
VHE -ray discovery and multi-wavelength study of the blazar 1ES 2322-409
H. E. S. S. Collaboration, :, H. Abdalla +232
A hotspot at a position compatible with the BL Lac object 1ES 2322-409 was serendipitously detected with H.E.S.S. during observations performed in 2004 and 2006 on the blazar PKS 2…
H.E.S.S. first public test data release
H. E. S. S. Collaboration
The High Energy Stereoscopic System (H.E.S.S.) is an array of ground-based imaging atmospheric Cherenkov telescopes in Namibia. For the first time, the H.E.S.S. collaboration is re…
First-Principles Plasma Simulations of Black-Hole Jet Launching
Kyle Parfrey, Alexander Philippov, Benoit Cerutti
Black holes drive powerful plasma jets to relativistic velocities. This plasma should be collisionless, and self-consistently supplied by pair creation near the horizon. We present…
A stratified jet model for AGN emission in the two-flow paradigm
Thomas Vuillaume, Gilles Henri, Pierre-Olivier Petrucci
High-energy emission of extragalactic objects is known to take place in relativistic jets, but the nature, the location, and the emission processes of the emitting particles are st…
Searches for gamma-ray lines and `pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S
H. E. S. S. Collaboration, :, H. Abdalla +234
Dwarf spheroidal galaxies are among the most promising targets for detecting signals of Dark Matter (DM) annihilations. The H.E.S.S. experiment has observed five of these systems f…
Turbulent and wind-driven accretion in dwarf novae threaded by a large scale magnetic field
Nicolas Scepi, Geoffroy Lesur, Guillaume Dubus +1
Dwarf novae (DNe) are accreting white dwarfs that show eruptions due to a thermal-viscous instability in the accretion disk. The outburst timescales constrain , the ratio of the…
A jet model for the fast IR variability of the black hole X-ray binary GX 339-4
Julien Malzac, Maithili Kalamkar, Federico Vincentelli +16
Using the simultaneous Infra-Red (IR) and X-ray light curves obtained by Kalamkar et al. (2016), we perform a Fourier analysis of the IR/X-ray timing correlations of the black hole…
First Ground-based Measurement of Sub-20 GeV to 100 GeV -rays from the Vela Pulsar with H.E.S.S. II
H. E. S. S. Collaboration, H. Abdalla, F. Aharonian +230
We report on the measurement and investigation of pulsed high-energy -ray emission from the Vela pulsar, PSR B083345, based on 40.3 hours of observations with the largest tel…
The -ray spectrum of the core of Centaurus A as observed with H.E.S.S. and Fermi-LAT
H. E. S. S. Collaboration, H. Abdalla, A. Abramowski +249
Centaurus A (Cen A) is the nearest radio galaxy discovered as a very-high-energy (VHE; 100 GeV-100 TeV) -ray source by the High Energy Stereoscopic System (H.E.S.S.). It is a fa…
Understanding X-ray Irradiation in Low-Mass X-ray Binaries directly from their Light-Curves
B. E. Tetarenko, G. Dubus, J. -P. Lasota +2
The X-ray light-curves of the recurring outbursts observed in low-mass X-ray binaries provide strong test beds for constraining (still) poorly understood disc-accretion processes.…
New transient Galactic bulge intermediate polar candidate XMMU J175035.2-293557
F. Hofmann, G. Ponti, F. Haberl +1
For the past decades a rare subclass of cataclysmic variables (CV), with magnetized white dwarfs (WD) as accretors has been studied and called intermediate polars (IP). They have b…
The starburst galaxy NGC 253 revisited by H.E.S.S. and Fermi-LAT
H. E. S. S. Collaboration, H. Abdalla, F. Aharonian +231
(Abridged) Context. NGC 253 is one of only two starburst galaxies found to emit -rays from hundreds of MeV to multi-TeV energies. Accurate measurements of the very-high-energy (…