Publications (31)
IKT 16: the first X-ray confirmed composite SNR in the SMC
Chandreyee Maitra, Jean Ballet, Miroslav Filipovic +4
Aims: IKT 16 is an X-ray and radio-faint supernova remnant (SNR) in the Small Magellanic Cloud (SMC). A detailed X-ray study of this SNR with XMM-Newton confirmed the presence of a…
Incremental Fermi Large Area Telescope Fourth Source Catalog
LAT collaboration, Soheila Abdollahi, Fabio Acero +137
We present an incremental version (4FGL-DR3, for Data Release 3) of the fourth Fermi-LAT catalog of gamma-ray sources. Based on the first twelve years of science data in the energy…
The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope -- Data Release 3
LAT collaboration, Marco Ajello, Luca Baldini +100
An incremental version of the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi-Large Area Telescope is presented. This version (4LAC-DR3) derives from the thir…
Parkes Radio and NuSTAR X-ray Observations of the Composite Supernova Remnant B0453-685 in the Large Magellanic Cloud
Jordan Eagle, Jeremy Hare, Elizabeth Hays +9
Gamma-ray emission is observed coincident in position to the evolved, composite supernova remnant (SNR) B0453-685. Prior multi-wavelength investigations of the region indicate that…
MeV-GeV Gamma-ray Emission from SNR G327.1-1.1 Discovered by the Fermi-LAT
Jordan Eagle, Daniel Castro, Tea Temim +5
We report the discovery of MeV-GeV gamma-ray emission by the Fermi-LAT positionally coincident with the TeV pulsar wind nebula (PWN) HESS~J1554-550 within the host supernova remnan…
X-ray synchrotron emission from supernova remnants
Jean Ballet
X-ray synchrotron emission tells us of the highest energy reached by accelerated electrons. In a few supernova remnants (SN 1006, G347.3-0.5) this is the dominant form of X-ray rad…
Nonlinear Particle Acceleration at Reverse Shocks in Supernova Remnants
Donald C. Ellison, Anne Decourchelle, Jean Ballet
Without amplification, magnetic fields in expanding ejecta of young supernova remnants (SNRs) will be orders of magnitude below those required to shock accelerate thermal electrons…
Measurement of the X-ray proper motion in the south-east rim of RX J1713.7-3946
Fabio Acero, Satoru Katsuda, Jean Ballet +1
We report on the first proper motion measurement in the supernova remnant RX J1713.7-3946 using the XMM-Newton X-ray telescope on a 13 year time interval. This expansion measuremen…
Search for Spatially Extended Fermi-LAT Sources Using Two Years of Data
Joshua Lande, Markus Ackermann, Alice Allafort +10
Spatial extension is an important characteristic for correctly associating gamma-ray-emitting sources with their counterparts at other wavelengths and for obtaining an unbiased mod…
A Systematic Search for MeV-GeV Pulsar Wind Nebulae without Gamma-ray Detected Pulsars
Jordan Eagle, Daniel Castro, Wei Zhang +3
An increasing number of pulsar wind nebulae (PWNe) are being identified in the TeV band by ground-based Imaging Air Cherenkov Telescopes such that they constitute the dominant sour…
Evidence for large-scale excesses associated with low HI column densities in the sky I. Dust excess
Jean-Marc Casandjian, Jean Ballet, Isabelle Grenier +1
Where dust and gas are uniformly mixed, atomic hydrogen can be traced through the detection of far-infrared (FIR) or UV emission of dust. We considered, for the origin of discrepan…
Hydrodynamic Simulation of Supernova Remnants Including Efficient Particle Acceleration
Donald C. Ellison, Anne Decourchelle, Jean Ballet
A number of supernova remnants (SNRs) show nonthermal X-rays assumed to be synchrotron emission from shock accelerated TeV electrons. The existence of these TeV electrons strongly…
A fresh perspective on the 3D dynamics of Tycho's supernova remnant: Ejecta asymmetries in the X-ray band
Leila Godinaud, Fabio Acero, Anne Decourchelle +1
450 years after the explosion of the Type Ia SN1572, the dynamics of the Tycho supernova remnant can give us keys to understand the explosion mechanism and the interaction of the r…
The Third Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
David A. Smith, Philippe Bruel, Colin J. Clark +156
We present 294 pulsars found in GeV data from the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope. Another 33 millisecond pulsars (MSPs) discovered in deep radio…
Isolated neutron stars as Science Validation for XMM2ATHENA: Ensuring robust data for future X-ray Astronomy
Adriana Mancini Pires, Christian Motch, Axel Schwope +9
The discovery of radio-quiet, X-ray thermally emitting isolated neutron stars (XINSs) in the ROSAT All-Sky Survey revealed a previously overlooked component of the neutron star pop…
Simulation of the growth of the 3D Rayleigh-Taylor instability in Supernova Remnants using an expanding reference frame
Federico Fraschetti, Romain Teyssier, Jean Ballet +1
Context: The Rayleigh-Taylor instabilities generated by the deceleration of a supernova remnant during the ejecta-dominated phase are known to produce finger-like structures in the…
Morphology of synchrotron emission in young supernova remnants
Gamil Cassam-Chenai, Anne Decourchelle, Jean Ballet +1
In the framework of test-particle and cosmic-ray modified hydrodynamics, we calculate synchrotron emission radial profiles in young ejecta-dominated supernova remnants (SNRs) evolv…
High-energy gamma-ray study of the dynamically young SNR G150.3+4.5
Justine Devin, Marianne Lemoine-Goumard, Marie-Hélène Grondin +4
The supernova remnant (SNR) G150.3+4.5 was recently discovered in the radio band; it exhibits a shell-like morphology with an angular size of , suggesting either an…
XMM2ATHENA, the H2020 project to improve XMM-Newton analysis software and prepare for Athena
Natalie A. Webb, Francisco J. Carrera, Axel Schwope +31
XMM-Newton, a European Space Agency observatory, has been observing the X-ray, ultra-violet and optical sky for 23 years. During this time, astronomy has evolved from mainly studyi…
Fermi-LAT Gamma-ray Emission Discovered from the Composite Supernova Remnant B0453-685 in the Large Magellanic Cloud
Jordan Eagle, Daniel Castro, Peter Mahhov +7
We report the second extragalactic pulsar wind nebula (PWN) to be detected in the MeV-GeV band by the Fermi-LAT, located within the Large Magellanic Cloud (LMC). The only other kno…
The first catalog of Fermi-LAT sources below 100 MeV
Giacomo Principe, Dmitry Malyshev, Jean Ballet +1
We present the first Fermi Large Area Telescope (LAT) low energy catalog (1FLE) of sources detected in the energy range 30 - 100 MeV. The COMPTEL telescope detected sources below 3…
The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
Kirpal Nandra, Didier Barret, Xavier Barcons +237
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of tw…
A novel method for component separation of extended sources in X-ray astronomy
Adrien Picquenot, Fabio Acero, Jérôme Bobin +3
In high-energy astronomy, spectro-imaging instruments such as X-ray detectors allow investigation of the spatial and spectral properties of extended sources including galaxy cluste…
Fermi-LAT Observation of Supernova Remnant S147
Junichiro Katsuta, Yasunobu Uchiyama, Takaaki Tanaka +8
We present an analysis of gamma-ray data obtained with the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope in the region around SNR S147 (G180.0-1.7). A spat…
The First Fermi-LAT Catalog of Sources Above 10 GeV
David Paneque, Jean Ballet, Toby Burnett +3
We present a catalog of gamma-ray sources at energies above 10 GeV based on data from the Large Area Telescope (LAT) accumulated during the first 3 years of the Fermi Gamma-ray Spa…
Characterization of the GeV emission from the Kepler supernova remnant
Fabio Acero, Marianne Lemoine-Goumard, Jean Ballet
The Kepler supernova remnant (SNR) is the only historic supernova remnant lacking a detection at GeV and TeV energies which probe particle acceleration. A recent analysis of Fermi-…
Spatially resolved broad-band synchrotron emission from the non-thermal limbs of SN1006
Jiang-Tao Li, Jean Ballet, Marco Miceli +6
We present ~400ks NuSTAR observations of the northeast (NE) and southwest (SW) non-thermal limbs of the Galactic SNR SN1006. We discovered three sources with X-ray emission detecte…
The 1st Fermi Lat Supernova Remnant Catalog
Fabio Acero, Markus Ackermann, Marco Ajello +156
To uniformly determine the properties of supernova remnants (SNRs) at high energies, we have developed the first systematic survey at energies from 1 to 100 GeV using data from the…
Detailed Investigation of the Gamma-Ray Emission in the Vicinity of SNR W28 with FERMI-LAT
Yoshitaka Hanabata, Hideaki Katagiri, John W. Hewitt +9
We present a detailed investigation of the -ray emission in the vicinity of the supernova remnant (SNR) W28 (G6.40.1) observed by the Large Area Telescope (LAT) onboard the…
3D simulations of supernova remnants evolution including non-linear particle acceleration
Gilles Ferrand, Anne Decourchelle, Jean Ballet +2
If a sizeable fraction of the energy of supernova remnant shocks is channeled into energetic particles (commonly identified with Galactic cosmic rays), then the morphological evolu…
The blast wave of Tycho's supernova remnant
Gamil Cassam-Chenai, John P. Hughes, Jean Ballet +1
We use the Chandra X-ray Observatory to study the region in the Tycho supernova remnant between the blast wave and the shocked ejecta interface or contact discontinuity. This zone…