Results 61 to 70 of about 809 (163)

INTERACTION OF SUPERNOVA BLAST WAVES WITH WIND-DRIVEN SHELLS: FORMATION OF

open access: yesOdessa Astronomical Publications, 2017
Most of middle-aged supernova remnants (SNRs) have a distorted and complicated appearance which cannot be explained in the framework of the Sedov-Taylor model.
V. V. Gvaramadze
doaj   +1 more source

Positron Annihilation Spectroscopy of Young Supernova Remnants

open access: yesOdessa Astronomical Publications, 2018
This paper discusses radiative and thermodynamic properties of cold rarefied aggregates of non-uniformly distributed gas and dust through which high fluxes of positrons with energies of 0.011-3.6 MeV pass.
D. N. Doikov
doaj   +1 more source

Revisiting γ-Ray Emission of the Supernova Remnant RCW 103

open access: yesThe Astrophysical Journal
We analyze more than 15 yr of γ -ray data obtained with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope (Fermi) for the region of the young supernova remnant (SNR) RCW 103, since the nearby source 4FGL J1616.2−5054e ...
Yi Xing, Zhongxiang Wang, Dong Zheng
doaj   +1 more source

Mapping the Dense Molecular Gas toward 13 Supernova Remnants

open access: yesThe Astrophysical Journal
Supernova remnants (SNRs) can exert strong influence on molecular clouds (MCs) through interaction by shock wave and cosmic rays. In this paper, we present our mapping observation of HCO ^+ and $\mathrm{HCN}$ 1–0 lines toward 13 SNRs interacting with MCs,
Tian-Yu Tu, Yang Chen, Qian-Cheng Liu
doaj   +1 more source

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

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

Nonthermal Signatures of Radiative Supernova Remnants

open access: yesThe Astrophysical Journal
The end of supernova remnant (SNR) evolution is characterized by a so-called “radiative” stage, in which efficient cooling of the hot bubble inside the forward shock slows expansion, leading to eventual shock breakup.
Rebecca Diesing   +4 more
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

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

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