Results 41 to 50 of about 6,060 (231)
Thermal history, collisional history, and structure of the CK‐chondrite parent body
Meteoritics &Planetary Science, EarlyView.Abstract Major chondrite groups (H, L, LL, R, EH, EL, CK) with some members of petrologic type 5 and 6 also have some members of types 3 and 4; they do not have members of type 1 or 2. Their parent bodies had onion‐shell structures and were internally heated by the decay of 26Al.
Alan E. Rubin
wiley +1 more source
Cosmology and large-scale structure from quasar redshift surveys [PDF]
, 1997 Our aim in this thesis is to use the clustering of QSOs to investigate large- scale structure and cosmology. We are particularly concerned with estimating the cosmological parameters which govern the evolution of structure in the Universe.
Croom, Scott Martin, Croom, S.M.
core
A global analysis of charmless two body hadronic decays for anti-triplet charmed baryons
Journal of High Energy Physics, 2022 Recently Belle collaboration reported new measurements for the branching fractions with the first observing two processes of B Ξ c 0 → Λ K S 0 $$ \mathcal{B}\left({\Xi}_c^0\to \Lambda {K}_S^0\right) $$ , B Ξ c 0 → Σ 0 K S 0 $$ \mathcal{B}\left({\Xi}_c^0 ...
Fei Huang, Zhi-Peng Xing, Xiao-Gang He
doaj +1 more source
Chondrule size averaging in two and three dimensions
Meteoritics &Planetary Science, EarlyView.Abstract Chondrule sizes are an important discriminant of chondrite groups and chondrule formation theories. Yet most studies report 2‐D sizes without attempting the somewhat tedious corrections to 3‐D proposed in the past literature. I show here that 3‐D size averages can be simply calculated directly from 2‐D averages of appropriate powers of sizes ...
Emmanuel Jacquet
wiley +1 more source
Concept of the optional high school subject Astronomy and Astrophysics [PDF]
, 2022 Diplomová práce popisuje návrh volitelného předmětu Astronomie a astrofyzika pro druhý ročník čtyřletého gymnázia. Na půdorysu 60 vyučovacích hodin je nastíněna koncepce předmětu, který multidisciplinární propojuje témata z celé řady vědních odvětví ...
Vaverka, Jan
core +1 more source
Dynamics of dark matter misalignment through the Higgs portal
Journal of High Energy PhysicsA light singlet scalar field feebly coupled through the super-renormalizable Higgs portal provides a minimal and well-motivated realization of ultra-light bosonic dark matter.
Brian Batell, Akshay Ghalsasi, Mudit Rai
doaj +1 more source
Very high energy gamma ray astronomy and non pulsating low mass x-ray binaries [PDF]
, 1991 This thesis is concerned with non pulsating Low Mass X-Ray Binaries as Very High Energy γ-ray sources, in particular Scorpius X-1; the brightest of these objects in X-rays, and the most likely to be detectable at energies above 250 GeV.
Carraminana, Alberto, Carraminana, A
core
Astronomy and astrophysics abstracts: literature 1997, part 1
, 1998 Astronomy and Astrophysics Abstracts is devoted to the recording, summarizing and indexing of astronomical publications throughout the world. Two volumes are scheduled to appear per year.
Burkhardt, G +8 more
core +1 more source
Lectures on Astronomy, Astrophysics, and Cosmology
, 2007 This is a written version of a series of lectures aimed at undergraduate students in astrophysics/particle theory/particle experiment. We summarize the important progress made in recent years towards understanding high energy astrophysical processes and we survey the state of the art regarding the concordance model of cosmology.
openaire +2 more sources
Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.Abstract The Mars 2020 rover is currently traversing the western rim of Jezero, a Middle to Late Noachian‐aged crater formed by an impactor that struck the northwest edge of Isidis Planitia (hereafter referred to as the Isidis basin) on Mars. Previous studies suggest that pre‐Isidis basin and Noachian outcrops are preserved throughout this region ...
M. C. Deahn +30 more
wiley +1 more source