Results 61 to 70 of about 921 (183)
Small, Volume 22, Issue 42, 27 July 2026.A bis formamide molecule was found to feature afterglow properties, in both crystalline powder state and in polyvinyl alcohol films. This was attributed to the intermolecular packing that allows H‐trapped emitting state and/or clustering‐triggered emission, which was intensified upon insertion of tetramethylbenzidine as a doping agent.
Chengyi Zhu +6 more
wiley +1 more source
OBSERVATIONS OF NON TYPICAL MASERS AT THE RT-22 RADIO TELESCOPE IN 2004–2013
Radio Physics and Radio Astronomy, 2017 Purpose: Some peculiarities of emission of Class I methanol masers on the 80–71A+ transition at 95 GHz in sources closely associated with protostar-forming regions and in supernova remnants are studied.
V. M. Shulga +6 more
doaj +1 more source
An Account of Luck, Fortune, and Fate
Philosophy and Phenomenological Research, Volume 113, Issue 1, Page 16-28, July 2026.ABSTRACT Luck is one of our most important concepts. In this article, I first argue that extant accounts of luck are deeply flawed. I then argue for a hybrid account of luck that is based around the difference between skill‐based and non‐skill‐based events.
Jesse Hill
wiley +1 more source
Life on Mars? The physiological perspective
Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley +1 more source
INTERACTION OF SUPERNOVA BLAST WAVES WITH WIND-DRIVEN SHELLS: FORMATION OF
Odessa 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
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 +4 more sources
Historical Supernovae and Supernova Remnants [PDF]
International 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.
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Revisiting γ-Ray Emission of the Supernova Remnant RCW 103
The Astrophysical JournalWe 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
Positron Annihilation Spectroscopy of Young Supernova Remnants
Odessa 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
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The Astrophysical JournalWe 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