Results 91 to 100 of about 167,251 (265)
The Distribution of Supernova Remnants in the Galaxy [PDF]
International Astronomical Union Colloquium, 1991 Observational selection effects and the lack of accurate distances for most Galactic SNRs pose problems for studies of the distribution of SNRs in the Galaxy. However, by comparing the observed Galactic longitude distribution of high surface brightness SNRs with that expected from simple models — which avoids some of the problems with selection effects
openaire +4 more sources
SUPERNOVA 1987A: A TEMPLATE TO LINK SUPERNOVAE TO THEIR REMNANTS [PDF]
The Astrophysical Journal, 2015 16 pages, 11 Figures; accepted for publication on ...
S. Orlando +3 more
openaire +5 more sources
The Anatomical Record, EarlyView.Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
wiley +1 more source
NEUTRAL PION EMISSION FROM ACCELERATED PROTONS IN THE SUPERNOVA REMNANT W44 [PDF]
, 2011 We present the AGILE gamma-ray observations in the energy range 50 MeV–10 GeV of the supernova remnant (SNR) W44, one of the most interesting systems for studying cosmic-ray production.
A. Giuliani +43 more
semanticscholar +1 more source
ChemPlusChem, EarlyView.Biscyclometalated platinum(II) complex bearing a persistent radical is reported. The complex possesses a doublet emission excited state (D2) with a short excited state lifetime at room temperature and a long excited triplet (T1) excited state lifetime at 77 K.
Sandhya Verma +6 more
wiley +1 more source
A CHANDRA X-RAY SURVEY OF EJECTA IN THE CASSIOPEIA A SUPERNOVA REMNANT [PDF]
, 2011 We present a survey of the X-ray-emitting ejecta in the Cassiopeia A supernova remnant (SNR) based on an extensive analysis of over 6000 spectral regions extracted on 2.″5–10″ angular scales using the Chandra 1 Ms observation.
U. Hwang, U. Hwang, J. Laming
semanticscholar +1 more source
SEARCH FOR A COMPACT SCINTILLATING COMPONENT IN SNR 3С58 AT DECAMETER WAVELENGTHS
Radio Physics and Radio Astronomy, 2014 The upper limit for the flux of a compact source of continuum radio emission in SNR 3C58, (2.7 ± 0.9) Jy, was obtained by the highest sensitive observations of interplanetary scintillations at decameter wavelengths.
N. N. Kalinichenko
doaj +1 more source
Compact Objects in Supernova Remnants [PDF]
International Astronomical Union Colloquium, 1996 Core collapse in very massive stars can lead to a central black hole that swallows the rest of the star and in less massive stars to a central neutron star and explosion. There is probably an intermediate mass range that gives an explosion and a central black hole; supernova remnants with no observable central object are candidates.
openaire +3 more sources
Effect of Background Magnetic Field on Ion Weibel Instability With High‐Intensity Short‐Pulse Lasers
Contributions to Plasma Physics, EarlyView.ABSTRACT The effect of finite background magnetic field on magnetic field amplification by Weibel instability using high‐intensity short‐pulse lasers is investigated. We consider Weibel instability for counter‐streaming sub‐relativistic plasma flows generated by shooting pure carbon targets with short‐pulse lasers.
Taiki Jikei +3 more
wiley +1 more source
European Journal of Organic Chemistry, Accepted Article.The oxidant meta‐chloroperbenzoic acid (m‐CPBA) is used widely for the epoxidation of alkenes, yet its efficiency is often limited under ambient conditions. In this study we investigate the catalytic activity of a Mn(II) salt and mononuclear Mn(II) complexes, two of which are reported here for the first time, in the epoxidation of alkenes with m‐CPBA ...
Milica Savić +7 more
wiley +1 more source