Results 71 to 80 of about 9,517 (211)

Historical Supernovae and Supernova Remnants [PDF]

open access: yesInternational Astronomical Union Colloquium, 1996
The oldest historical supernova (SN), recorded by ancient Chinese in 14th Century B.C. on pieces of tortoise shells or bones, is identified with the aid of modern space γ-ray observations. Hard X-rays with energy up to 20 keV were observed from IC 443 by the X-ray satellite Ginga. We infer from these observations the age of IC 443 is ∼ 1000 — 1400 yrs.
openaire   +1 more source

Energy spectra of electrons and positrons produced in supernova remnants [PDF]

open access: diamond, 2013
E. G. Berezhko   +1 more
openalex   +1 more source

Deep Optical Emission-line Images of Nine Known and Three New Galactic Supernova Remnants

open access: yesThe Astrophysical Journal Supplement Series
Deep optical emission-line images are presented for nine known plus three new Galactic supernova remnants (SNRs), all but one having at least one angular dimension >1°.
Robert A. Fesen   +16 more
doaj   +1 more source

High-Resolution X-Ray Spectroscopy of Galactic Supernova Remnants

open access: yesActa Polytechnica CTU Proceedings, 2014
High-resolution X-ray spectroscopy of Galactic supernova remnants (SNRs), based on grating spectrometers onboard XMM-Newton and Chandra, has been revealing a variety of new astrophysical phenomena.
Satoru Katsuda, Hiroshi Tsunemi
doaj   +1 more source

Supernova Remnants and their Supernovae [PDF]

open access: yesInternational Astronomical Union Colloquium, 1988
AbstractObserving supernova remnants provides important clues to the nature of supernova explosions. Conversely, the late stages of stellar evolution and the mechanism of supernova explosions affect supernova remnants through circumstellar matter, stellar remnants, and nucleosynthesis. The elements of supernova classification and the connection between
openaire   +1 more source

Supernova Remnant CTB 80 and PSR 1951+32 [PDF]

open access: bronze, 2000
R. G. Strom, B. W. Stappers
openalex   +1 more source

Supernova Remnants with Fermi Large Area Telescope

open access: yesEPJ 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

X-rays from supernova remnants [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1998
13 pages, 18 figures. To appear in the Proceedings of the 270. WE-Heraeus Seminar on Neutron Stars, Pulsars and Supernova Remnants, Jan. 21-25, 2002, Physikzentrum Bad Honnef, eds W. Becker, H. Lesch & J. Truemper.
openaire   +4 more sources

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

open access: yesThe 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   +3 more
doaj   +1 more source

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