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- Centre National de la Recherche ScientifiqueFR139 papers
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5 papers · 2 filters
Results from AstroSat LAXPC Observations of Hercules X-1 (Her X-1)
D. A. Leahy, Y. Chen
The Large Area Proportional Counter (LAXPC) instruments onboard the AstroSat Observatory has observed the X-ray binary system Her X-1 during AstroSat observing sessions AO2, AO3 an…
New Optically Identified Supernova Remnants in the Large Magellanic Cloud
Miranda Yew, Miroslav D. Filipović, Milorad Stupar +20
We present a new optical sample of three Supernova Remnants and 16 Supernova Remnant (SNR) candidates in the Large Magellanic Cloud(LMC). These objects were originally selected usi…
Swift/BAT and RXTE/ASM Observations of the 35-day X-ray Cycle of Hercules X-1
Denis Leahy, Yuyang Wang
Swift/BAT and RXTE/ASM observations have monitored the X-ray binary system Her X-1 for approximately 14.5 years each, and both were monitoring Her X-1 for a period of ~5.5 years. H…
Quark-Novae in the outskirts of galaxies: An explanation of the Fast Radio Burst phenomenon
Rachid Ouyed, Denis Leahy, Nico Koning
We show that old isolated neutron stars in groups and clusters of galaxies experiencing a Quark-Nova phase (QN: an explosive transition to a quark star) may be the source of FRBs.…
Evolutionary Models for 43 Galactic Supernova Remnants with Distances and X-ray Spectra
D. A. Leahy, S. Ranasinghe. M. Gelowitz
The X-ray emission from a supernova remnant (SNR) is a powerful diagnostic of the state of the shocked plasma. The temperature (kT) and the emission measure (EM) of the shocked-gas…