Results 81 to 90 of about 108,957 (118)
Evolution of Cluster Alignments as Evidence of Large-scale Structure Formation in the Universe
The Astrophysical Journal LettersThe Universe’s large-scale structure forms a vast, interconnected network of filaments, sheets, and voids known as the cosmic web. For decades, astronomers have observed that the orientations of neighboring galaxy clusters within these elongated ...
Michael J. West +4 more
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New Clues on the Extended He ii Ionization in IZw18 from GTC/MEGARA and JWST/MIRI
The Astrophysical Journal LettersIZw18 is one of the lowest-metallicity star-forming galaxies known at z ∼ 0, considered a unique local analogue of the first galaxies. The origin of its hard ionizing continuum, expected to be a common feature in the early Universe and traced by He ii ...
A. Arroyo-Polonio +7 more
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ELED 466 Teaching Social Studies in the Elementary School [PDF]
, 1997 Course syllabus for ELED 466 Teaching Social Studies in the Elementary ...
Tsolakides, Liz
core
Expectation for the Hard X-Ray and Gamma-Ray Emission from Pair-instability Supernovae
The Astrophysical JournalPair-instability supernovae (PISNe) are predicted thermonuclear explosions of massive stars with helium core masses exceeding ∼65 M _⊙ , and they synthesize substantial amounts of radioactive ^56 Ni ( M ( ^56 Ni) ∼ 60 M _⊙ in extreme cases).
Ryo Sawada
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EC70-466, Let\u27s Buy...A Child\u27s Coat [PDF]
, 1970 Extension Circular 70-466: Let\u27s Buy...A child’s coat.
Petersen, Gerda
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Two Events with Spectacular Moving Structures in a Failed Solar Filament Eruption
The Astrophysical JournalWe investigate the complex magnetic reconnection process between the filament and surrounding loops during the failed filament eruption that occurred in NOAA active region 13445 on 2023 September 24, using extreme-ultraviolet observations from the Solar ...
Yudi Ou +14 more
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Critical Condition of Core-collapse Supernovae. I. One-dimensional Models
The Astrophysical JournalWhen the core of a massive star collapses, neutrino heating can energize the stalled accretion shock, leading to a successful supernova. The critical condition that characterizes the transition from accretion to explosion is a central topic of study and ...
David Pochik, Todd A. Thompson
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Dust Battery: A Novel Mechanism for Seed Magnetic Field Generation in the Early Universe
The Astrophysical JournalWe propose a novel dust battery mechanism for generating seed magnetic fields in the early Universe, in which charged dust grains are radiatively accelerated, inducing strong electric currents that subsequently generate magnetic fields.
Nadine H. Soliman +2 more
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Roosevelt, Franklin Delano, 1882-1945 (SC 466) [PDF]
, 2012 Finding aid and full-text scan (Click on Additional Files below) for Manuscripts Small Collection 466. Letter to George W. Burchette, Burkesville, Kentucky, from President Franklin Delano Roosevelt, Washington, D.C., which mentions that Burchette was a
Folklife Archives, Manuscripts &
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