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20 papers · 2 filters
H.E.S.S. detection and multi-wavelength study of the 1 blazar PKS 034627
H. E. S. S. collaboration
PKS 0346-27 is a Low Synchrotron Peaked (LSP) blazar at redshift 0.991. The very-high-energy (VHE, E > 100 GeV) spectra of blazars are always affected by absorption by the Ext…
Multiple outflows and delayed ejections revealed by early imaging of novae
Elias Aydi, John D. Monnier, Antoine Mérand +39
Novae are thermonuclear eruptions on accreting white dwarfs in interacting binaries. Although most of the accreted envelope is expelled, the mechanism -- impulsive ejection, multip…
Broad Iron Line as a Relativistic Reflection from Warm Corona in AGN
P. P. Biswas, A. Różańska, F. H. Vincent +2
We present that the broad feature usually observed in X-ray spectra can be explained by a ray-traced emission from a two-slab system containing a dissipative, warm corona on top of…
Optimizing the potential of KM3NeT in detecting core-collapse supernovae
KM3NeT Collaboration, O. Adriani, A. Albert +285
Core-collapse supernovae mark the end of life of massive stars. However, despite their importance in astrophysics, their underlying mechanisms remain unclear. Neutrinos that emerge…
Chemical Evolution and Kilonova Implications of Post-Merger Accretion Disk Winds
Agnieszka Janiuk, Joseph Saji, Gerardo Urrutia
Several gamma ray bursts have recently been associated with a kilonova emission. We study the mechanisms which could account for this effect, by means of radioactive decay of eleme…
Evolution of accretion disc-corona in the TDE Candidate AT 2019avd
Haichao Xu, Xinwu Cao, Yanan Wang +1
X-ray observations of the tidal disruption event (TDE) candidate AT 2019avd show drastic variabilities in flux and spectral shape over hundreds of days, providing clues on the accr…