Results 91 to 100 of about 428,712 (306)

eScience Symposium Reflections from Christopher Erdmann: Redefining the Librarian’s Role in eScience

Journal of eScience Librarianship, 2016
Christopher Erdmann, Head Librarian, Wolbach Library, Harvard Smithsonian Center for Astrophysics, shares his multiple experiences at the University of Massachusetts and New England Area Librarian eScience Symposium, as well as current challenges he sees
Christopher Erdmann
doaj   +1 more source

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

Meteoritics &Planetary Science, EarlyView.
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis, L. Ferrière, C. Ma, J. Hu, D. Palles, P. D. Asimow   +5 more
wiley   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

Spin and Maximal Acceleration

Galaxies, 2017
We study the spin current tensor of a Dirac particle at accelerations close to the upper limit introduced by Caianiello. Continual interchange between particle spin and angular momentum is possible only when the acceleration is time-dependent.
Giorgio Papini
doaj   +1 more source

Parent body thermal metamorphism of enstatite chondrites: Disentangling the effects of shock melting

Meteoritics &Planetary Science, EarlyView.
Abstract Enstatite chondrites (ECs) formed on at least two parent bodies, EH and EL. After the accretion of the EC parent bodies, EC material was subjected to varying degrees of parent body thermal metamorphism (measured by petrologic types 3–6), due to heat released by radioactive isotope decay.
Peter Mc Ardle, Rhian H. Jones, Patricia L. Clay, Romain Tartèse, Ray Burgess, Brian O'Driscoll, Eric W.G. Hellebrand, Jonathan Fellowes, Arthur Goodwin, Lewis Hughes   +9 more
wiley   +1 more source

Relativistic astrophysics [PDF]

The design, experimental testing, and calibration (error analysis) of a high resolution Cerenkov-scintillation detector is presented. The detector is capable of detecting iron isotopes and heavy ions of cosmic rays, and of performing direct measurements ...
Price, P. B.
core   +1 more source

Light, Gravity and Matter (with emphasis on thermo-gravity waves) [PDF]

INCAS Bulletin
What are light, gravity, and regenerating matter? Where do they originate and where do they go? The answers to these questions lie in one of the most powerful equations ever discovered: Euler's formula (i.e., complex analysis).
Horia DUMITRESCU, Vladimir CARDOS, Radu BOGATEANU   +2 more
doaj   +1 more source

JAXA curation for Bennu samples returned by the NASA's OSIRIS‐REx mission

Meteoritics &Planetary Science, EarlyView.
Abstract NASA's OSIRIS‐REx mission successfully collected and returned ~121.6 g of bulk samples from the B‐type, near‐Earth asteroid (101955) Bennu to Earth in September 2023. Upon returning to Earth, the samples were transported to the NASA Johnson Space Center where most of the samples have been stored and processed.
Rui Tahara, Kentaro Hatakeda, Masahiro Nishimura, Kasumi Yogata, Ryota Fukai, Akiko Miyazaki, Toru Yada, Yuma Enokido, Masanao Abe, Seiya Kawasaki, Ryosuke Sakurai, Tatsuaki Okada, Cedric Pilorget, Jean‐Pierre Bibring, Vincent Hamm, Lionel Lourit, Damien Loizeau, Lucie Riu, Koki Yumoto, Yuichiro Cho, Seiji Sugita, Shumpei Nakahara, Shoki Mori, Yuta Aikyo, Shingo Kameda, Roger Stabbins, Yuta Shimizu, Hideaki Miyamoto, Yuya Hitomi, Arisa Nakano, Kana Nagashima, Haruna Sugahara, Shino Suzuki, Shunta Kimura, Tomohiro Usui   +34 more
wiley   +1 more source

Particle astrophysics [PDF]

The following scientific areas are reviewed: (1) cosmology and particle physics (particle physics and the early universe, dark matter, and other relics); (2) stellar physics and particles (solar neutrinos, supernovae, and unconventional particle physics);
Aprile, Elena, Barish, Barry C., Beier, Eugene W., Brandenberger, Robert, Cabrera, Blas, Caldwell, David, Cassiday, George, Cline, David B., Cronin, James, Sadoulet, Bernard   +9 more
core   +1 more source

Calculating the ionization rate induced by GCR and SCR protons in Earth’s atmosphere

Solar-Terrestrial Physics, 2019
This paper explores the applied use of the RUSCOSMICS software package [http://ruscosmics.ru] designed to simulate propagation of primary cosmic ray (CR) particles through Earth’s atmosphere and collect information about characteristics of their ...
Maurchev E.A., Balabin Yu.V., Germanenko A.V., Mikhalko E.A., Gvozdevsky B. B.   +4 more
doaj   +1 more source