scholarly journals Efficiencies of Magnetic Field Amplification and Electron Acceleration in Young Supernova Remnants: Global Averages and Kepler’s Supernova Remnant

2021 ◽  
Vol 917 (2) ◽  
pp. 55
Author(s):  
Stephen P. Reynolds ◽  
Brian J. Williams ◽  
Kazimierz J. Borkowski ◽  
Knox S. Long
Keyword(s):  
Magnetic Field ◽  
Supernova Remnants ◽  
Supernova Remnant ◽  
Electron Acceleration ◽  
Field Amplification

scholarly journals Nova GK Persei – A Miniature Supernova Remnant?

1988 ◽  
Vol 101 ◽  
pp. 47-50
Author(s):  
E.R. Seaquist ◽  
D.A. Frail ◽  
M.F. Bode ◽  
J.A. Roberts ◽  
D.C.B. Whittet ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Synchrotron Radiation ◽  
Strong Evidence ◽  
White Dwarf ◽  
Planetary Nebula ◽  
Supernova Remnants ◽  
Supernova Remnant ◽  
Optical Images ◽  
Ambient Gas ◽  
The Magnetic Field

AbstractWe present radio and optical images of the shell-like remnant of the 1901 outburst of Nova GK Persei. The behaviour of this object is remarkably similar to supernova remnants. The synchrotron radiation-emitting shell is polarized with the magnetic field oriented radially, as in young SNR’s. This similarity plus extensive data we have acquired on the expansion and the interstellar environment of GK Per indicate that the nova shell is colliding with ambient gas whose density is substantially higher than the ISM.Furthermore, there is strong evidence that the ambient gas is circumstellar rather than interstellar, and that this material is the shell of an ancient planetary nebula associated with the white dwarf companion of GK Per.

scholarly journals Computational Study of Magnetic Field Amplification in Laser-Produced Shock Waves Relevant to Supernova Remnants

2016 ◽  
Vol 688 ◽  
pp. 012035
Author(s):  
Ayako Ishii ◽  
Shiori Kishita ◽  
Naofumi Ohnishi ◽  
Yasuhiro Kuramitsu ◽  
Taichi Morita ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Shock Waves ◽  
Supernova Remnants ◽  
Computational Study ◽  
Field Amplification

scholarly journals Radio Emission from the Supernova Remnant Vela-X

1968 ◽  
Vol 21 (2) ◽  
pp. 201 ◽  
Author(s):  
DK Milne
Keyword(s):  
Magnetic Field ◽  
High Resolution ◽  
Radio Emission ◽  
Spectral Index ◽  
Supernova Remnants ◽  
Supernova Remnant ◽  
Magnetic Field Direction ◽  
Radio Observations ◽  
Optical Identification ◽  
Polarization Measurements

Radio observations are presented of the fairly large galactic complex Vela-X, Y, and Z. These sources are believed to be the remnant of a supernova having an optical identification with the filamentary nebula Stromlo 16. The brightness distributions, obtained at four frequencies, indicate an open annular structure reminiscent of other supernova remnants. The variation of spectral index over the region is investigated and shows that the radiation is substantially nontherm81, the integrated fluxes yielding a spectral index of -0,3. A high resolution distribution of magnetic field direction is deduced from polarization measurements made at three frequencies; a circumferential magnetic field is a possible interpretation of the field orientations.

scholarly journals Magnetic fields in supernova remnants from OH (1720 MHz) masers

2002 ◽  
Vol 206 ◽  
pp. 217-220 ◽  
Author(s):  
Crystal L. Brogan ◽  
Mark J. Claussen ◽  
William M. Goss
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Supernova Remnants ◽  
Supernova Remnant ◽  
Zeeman Splitting ◽  
Molecular Gas ◽  
Maser Spot ◽  
Maser Line ◽  
Post Shock ◽  
The Impact

Supernovae have a profound effect on the morphology, kinematics, and metallicity of galaxies. The impact of supernova shocks on surrounding molecular clouds is also thought to trigger new generations of star formation. A critical ingredient in such interactions and, indeed, all aspects of supernova remnant (SNR) evolution are magnetic fields. In recent years, OH (1720 MHz) masers have been used as signposts for the interaction of SNRs with molecular gas. In addition to tracing SNR/molecular cloud interactions, the OH (1720 MHz) maser line also provides a unique opportunity to measure the strength of the post-shock magnetic field via Zeeman splitting. Recent results from efforts to both detect the magnetic fields and resolve the maser spot sizes of OH (1720 MHz) masers toward W51C using the VLBA and W44 using MERLIN are presented. These observations have yielded magnetic field detections between 0.5 and 2.5 mG and large maser spot sizes of about 1015 cm.

scholarly journals Magnetic field amplification in Tycho and other shell-type supernova remnants

2005 ◽  
Vol 444 (3) ◽  
pp. 893-893 ◽  
Author(s):  
H. J. Völk ◽  
E. G. Berezhko ◽  
L. T. Ksenofontov
Keyword(s):  
Magnetic Field ◽  
Supernova Remnants ◽  
Field Amplification ◽  
Shell Type
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