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Impacto ambiental de los remanentes de supernova
(Asociación Argentina de Astronomía, 2015-08)
The explosion of a supernovae (SN) represents the sudden injection of about 10^51 ergs of thermal and mechanical energy in a small region of space, causing the formation of powerful shock waves that propagate through the ...
Evolving supernova remnants in multiphase interstellar media
(Wiley Blackwell Publishing, Inc, 2020-01)
We performed three-dimensional magnetohydrodynamic simulations to study the evolution of a supernova remnant (SNR) in a turbulent neutral atomic interstellar medium. The media used as background shares characteristics with ...
Evidence for particle acceleration to the knee of the cosmic ray spectrum in Tycho's supernova remnant
(Institute of Physics Publishing, 2011-02)
Supernova remnants (SNRs) have long been assumed to be the source of cosmic rays (CRs) up to the "knee" of the CR spectrum at 1015 eV, accelerating particles to relativistic energies in their blast waves by the process of ...
The physical connection between G337.2+0.1 and AX J1635.9-4719
(Società Astronomica Italiana, 2005-12)
We present evidence supporting a SNR origin for the radio source G337.2+0.1, which was discovered in the MOST 843-MHz radio survey. The radio source is spatially coincident with the unidentified ASCA source AX J1635.9-4719. ...
Simulated synchrotron emission for the Tycho's supernova remnants: An asymmetric initial mass model
(Wiley Blackwell Publishing, Inc, 2020-05)
We have performed 3D magnetohydrodynamics (MHD) numerical simulations with the aim of exploring the scenario in which the initial mass distribution of a supernova (SN) explosion is anisotropic. The purpose is to analyse ...
Molecular environments of the supernova remnant G359.1−0.5
(Wiley Blackwell Publishing, Inc, 2020-04)
We report new CO observations and a detailed molecular-line study of the mixed morphology supernova remnant G359.1-0.5, which contains six OH (1720 MHz) masers along the radio shell, indicative of shock-cloud interaction. ...
Is the supernova remnant RX J1713.7-3946 a hadronic cosmic-ray accelerator?
(IOP Publishing, 2001-12)
The nonthermal supernova remnant (SNR) RX J1713.7-3946 has recently been shown to be a site of cosmic-ray (CR) electron acceleration to TeV energies. Here we present evidence that this remnant is also accelerating CR nuclei. ...
New perspectives on the supernova remnant Puppis A based on a radio polarization study
(Wiley Blackwell Publishing, Inc, 2018-06)
We present a polarization study towards the supernova remnant (SNR) Puppis A based on original observations performed with the Australia Telescope Compact Array. Based on the analysis of a feature detected outside the SNR ...
2FHL J0826.1-4500: Discovery of a Possible Shock-Cloud Interaction on the Western Edge of the Vela Supernova Remnant
(IOP Publishing, 2019-01)
We report on the investigation of a very high-energy, Galactic γ-ray source recently discovered at >50 GeV using the Large Area Telescope on board Fermi. This object, 2FHL J0826.1-4500, displays one of the hardest >50 GeV ...
Radio emission from interstellar shocks: Young type Ia supernova remnants and the case of N 103B in the Large Magellanic Cloud
(Springer, 2019-11)
We investigate young type Ia supernova remnants (SNRs) in our Galaxy and neighbouring galaxies in order to understand their properties and early stage of their evolution. Here we present a radio continuum study based on ...