Results 71 to 80 of about 809 (163)

Supernova Remnants with Fermi Large Area Telescope

EPJ Web of Conferences, 2017
The Large Area Telescope (LAT), on-board the Fermi satellite, proved to be, after 8 years of data taking, an excellent instrument to detect and observe Supernova Remnants (SNRs) in a range of energies running from few hundred MeV up to few hundred GeV ...
Caragiulo M., Di Venere L.
doaj   +1 more source

Measurement of Anisotropies in Supernova Remnant Observations and Their Interpretation Using Numerical Models

The Astrophysical Journal
Supernova remnants (SNRs) exhibit varying degrees of anisotropy, which have been extensively modeled using numerical methods. We implement a technique to measure anisotropies in SNRs by calculating power spectra from their high-resolution images. To test
Soham Mandal, Paul C. Duffell, Abigail Polin, Dan Milisavljevic   +3 more
doaj   +1 more source

Time Evolution of the Synchrotron X-Ray Emission in Kepler’s Supernova Remnant: The Effects of Turbulence and Shock Velocity

The Astrophysical Journal
The maximum energy of electrons in supernova remnant (SNR) shocks is typically limited by radiative losses, where the synchrotron cooling time equals the acceleration time.
Vincenzo Sapienza, Marco Miceli, Oleh Petruk, Aya Bamba, Satoru Katsuda, Salvatore Orlando, Fabrizio Bocchino, Tracey DeLaney   +7 more
doaj   +1 more source

Supernovae and the Arrow of Time. [PDF]

Entropy (Basel), 2022
Abarzhi SI, Hill DL, Naveh A, Williams KC, Wright CE.   +4 more
europepmc   +1 more source

Continuous solutions of cosmic-rays and waves in astrophysical environments. [PDF]

Sci Rep, 2023
Irshad K, Ramzan B, Qazi SNA, Areeb F, Rasheed A, Jamil M.   +5 more
europepmc   +1 more source

Supernova 1604, Kepler’s Supernova, and Its Remnant [PDF]

, 2016
Supernova 1604 is the last Galactic supernova for which historical records exist. Johannes Kepler's name is attached to it, as he published a detailed account of the observations made by himself and European colleagues. Supernova 1604 was very likely a Type Ia supernova, which exploded 350 pc to 750 pc above the Galactic plane.
openaire   +4 more sources

A persistent influence of supernovae on biodiversity over the Phanerozoic. [PDF]

Ecol Evol, 2023
Svensmark H.
europepmc   +1 more source

Bell Instability–mediated Diffusive Shock Acceleration at Supernova Blast Wave Shock Propagating in the Interstellar Medium

The Astrophysical Journal
Supernova blast wave shock is a very important site of cosmic-ray acceleration. However, the detailed physical process of acceleration, in particular, nonlinear interplay between cosmic-ray streaming and magnetic field amplification, has not been studied
Tsuyoshi Inoue, Alexandre Marcowith, Gwenael Giacinti   +2 more
doaj   +1 more source

The supernova remnant SN 1006 as a Galactic particle accelerator. [PDF]

Nat Commun, 2022
Giuffrida R, Miceli M, Caprioli D, Decourchelle A, Vink J, Orlando S, Bocchino F, Greco E, Peres G.   +8 more
europepmc   +1 more source

Shock Wave Precursors in M33 Supernova Remnants

The Astrophysical Journal
We present high-resolution profiles of the H α , [N II ], and [O III ] lines of supernova remnants (SNRs) in M33. The 8 km s ^−1 resolution allows us to separate emission from the photoionized shock precursors from the emission from shocked gas.
John C. Raymond, Nelson Caldwell, Knox S. Long   +2 more
doaj   +1 more source