Results 91 to 100 of about 89,753 (219)

Mixing of materials in magnetized core-collapse supernova remnants

open access: yes, 2023
Core-collapse supernova remnants are structures of the interstellar medium (ISM) left behind the explosive death of most massive stars (⁠≲40M⊙⁠). Since they result in the expansion of the supernova shock wave into the gaseous environment shaped by the ...
Petrov, M.   +5 more
core   +1 more source

A Novel Parameterization for Rapid Cooling in Supernova Remnants, with Applications to the Pa 30 Nebula

open access: yesThe Astrophysical Journal
We systematically study how cooling creates structural changes in supernova remnants as they evolve. Inspired by the peculiar morphology of the Pa 30 nebula, we adopt a framework in which to characterize supernova remnants under different degrees of ...
Miranda Pikus   +3 more
doaj   +1 more source

Topics in Core-Collapse Supernova Theory: The Formation of Black Holes and the Transport of Neutrinos [PDF]

open access: yes, 2012
Core-Collapse Supernovae are one of the most complex astrophysical systems in the universe. They deeply entwine aspects of physics and astrophysics that are rarely side by side in nature.
O'Connor, Evan Patrick
core   +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

A Pulsar Survey of 18 Supernova Remnants [PDF]

open access: yes, 1996
We have performed a pulsar search of 18 known or probable supernova remnants with the Arecibo 305 m radio telescope at 430 and 1420 MHz. The remnants were selected to have angular sizes less than or of order a few telescope beam diameters (˜10' at 430 ...
Gorham, Peter W.   +4 more
core  

Neutrino emission of Fermi supernova remnants

open access: yes, 2011
The Fermi gamma-ray space telescope reported the observation of several Galactic supernova remnants recently, with the gamma-ray spectra well described by hadronic pp collisions.
Yuan, Qiang   +5 more
core   +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

Gammaray emission of supernova remnants

open access: yes, 2011
History of gamma ray astronomy is shortly reviewed. Information on the observations of supernova remnants in gamma- rays as well as on the studies of Ukrainian scientists in this field is presented.
Петрук, О.
core  

Gamma-Ray Lines from Young Supernova Remnants [PDF]

open access: yes, 1969
The gamma-ray luminosity of a typical type I supernova remnant has been calculated by assuming that the origin of the optical luminosity is due to the energy of the radioactive decay of Ni56.
Clayton, Donald D   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy