Results 71 to 80 of about 30,635 (100)
Multiwavelength Signatures of Cosmic Ray Acceleration by Young Supernova Remnants
, 2008 An overview is given of multiwavelength observations of young supernova remnants, with a focus on the observational signatures of efficient cosmic ray acceleration.
Felix A. Aharonian +3 more
core +1 more source
Why Schonland Failed in His Search for Runaway Electrons From Thunderstorms
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 10, 28 May 2025.Abstract B.F.J. Schonland, advised and encouraged by C.T.R. Wilson, made two unsuccessful searches for runaway electrons from thunderstorms in the 1930s. These findings stand in marked contrast with research results over the last decade and ironically set this field of research back many decades.
A. Chilingarian +3 more
wiley +1 more source
Antimatter production in supernova remnants
, 2011 We calculate the energy spectra of cosmic rays (CR) and their secondaries produced in a supernova remnant (SNR), taking into account the time-dependence of the SNR shock.
Aharonian +9 more
core +1 more source
A Supernova Remnant in Centaurus
The Astrophysical Journal, 1967 Observations of the composite radio source which includes the catalogued components 1209-52 and 1209-51 (Bolton et al. 1964) have been obtained at frequencies 629, 1410, and 2650 MHz with the 210-ft Parkes telescope. The observations at the highest frequency are shown in Figure 1.
J. B. Whiteoak, F. F. Gardner
openaire +3 more sources
Chemistry – A European Journal, Volume 31, Issue 29, May 22, 2025.Water‐soluble luminophores prepared by sulfonation of heteroleptic iridium(III) complexes enable judicious tailoring of properties for unprecedented control of electrochemiluminescence (ECL) reaction pathways in aqueous solution. This approach removes a longstanding barrier to the translation of high‐efficiency and multicolored ECL systems developed in
Kesha Sriee Manimaran +7 more
wiley +1 more source
Photoinduced Hydrogen Evolution Catalyzed by Co(II) Complexes of N5‐Donor Ligands
Chemistry – A European Journal, Volume 31, Issue 28, May 19, 2025.Cobalt(II) complexes of three related pentadentate ligands have been investigated as photoelectrochemical catalysts for proton reduction/hydrogen gas evolution in the presence of ruthenium, iridium, or copper‐based photosensitizers. Potential mechanisms for hydrogen evolution have been investigated by time‐resolved transient absorption spectroscopy and
Chuanshuai Li +14 more
wiley +1 more source
, 2014 Context: Since a few years, signatures of supernova remnants associated with molecular clouds have been detected in gamma rays. Whether these gamma rays are generated by cosmic ray electrons or by cosmic ray protons is usually not known. The detection of
Röken, Christian +2 more
core +1 more source
Supernova 1987A: The Birth of a Supernova Remnant [PDF]
International Astronomical Union Colloquium, 2005 SummaryI describe and interpret observations of the rapidly developing impact of the debris of SN1987A with its circumstellar ring.
openaire +2 more sources
Radioactivity in Supernova Remnants.
The Astrophysical Journal, 1965 We calculate implications of the idea developed by Burbidge et al. that the nearly exponential decrease after the (irst 100 days of the light-curves of Type i supernovae is due to nuclear energy released by the spontaneous fission of Cf354. Uncertainty of the correctness of the Cf-hypothesis qualifies any interpretation of (1) supernovae light-curves, (
Clayton, Donald D, Craddock, W L
openaire +2 more sources
Supernova 1604, Kepler’s Supernova, and Its Remnant [PDF]
, 2016 Supernova 1604 is the last Galactic supernova for which historical records exist. Johannes Kepler's name is attached to it, as he published a detailed account of the observations made by himself and European colleagues. Supernova 1604 was very likely a Type Ia supernova, which exploded 350 pc to 750 pc above the Galactic plane.
openaire +6 more sources