Results 101 to 110 of about 401,472 (327)

Advances in high energy astronomy from space [PDF]

Observational techniques, derived through space technology, and examples of what can be learned from X-ray observations of a few astronomical objects are given.
Giacconi, R.
core   +1 more source

Dimensionally Resolved Nanostructures of an Atomically Precise and Optically Active 1D van der Waals Helix

Advanced Materials, EarlyView.
The ability to grow nanostructures based on inorganic helical crystals with long‐range order will enable a platform to realize physical states that arise from chirality. Herein, it is demonstrated that controlled vapor phase deposition of an atomically precise helical crystal, GaSI, into ultrathin 1D nanowires and quasi‐2D nanoribbons.
Kaitlyn G. Dold, Joni Spencer, Griffin M. Milligan, Sirisak Singsen, Zhe Wang, Marcus Marracci, Dmitri Leo Mesoza Cordova, Thanh N. Huynh, Kaleolani Ogura, Toshihiro Aoki, Xingxu Yan, Dmitry A. Fishman, Xiaoqing Pan, Ruqian Wu, Elizabeth M. Y. Lee, Maxx Q. Arguilla   +15 more
wiley   +1 more source

Thin-wall vacuum decay in the presence of a compact dimension meets the H 0 and S 8 tensions

Journal of High Energy Physics
The proposal of a rapid sign-switching cosmological constant in the late universe, mirroring a transition from anti-de Sitter (AdS) to de Sitter (dS) space, has significantly improved the fit to observational data and provides a compelling framework for ...
Luis A. Anchordoqui, Ignatios Antoniadis, Daniele Bielli, Auttakit Chatrabhuti, Hiroshi Isono   +4 more
doaj   +1 more source

TAIGA - An advanced hybrid detector complex for astroparticle physics and high energy gamma-ray astronomy [PDF]

, 2023
Н. Буднев, И. И. Астапов, P. Bezyazeekov, E. Bonvech, А. Бородин, А. Булан, Д. В. Чернов, A. Chiavassa, A. Dyachok, А. Р. Гафаров, A. Garmash, V. Grebenyuk, E. Gress, О. Гресс, Т. И. Гресс, A. A. Grinyuk, О. Гришин, A. D. Ivanova, Anna L. Ivanova, N. Kalmykov, В. В. Киндин, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, В. А. Кожин, E. Kravchenko, A. P. Kryukov, L. Kuzmichev, А. А. Лагутин, M. V. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Monkhoev, Э. А. Осипова, A. Pakhorukov, L. Pankov, А. Пан, A. Panov, А. А. Петрухин, I. Poddubny, D. Podgrudkov, V. Ponomareva, E. Popova, E. Postnikov, V. Prosin, В. С. Птускин, А. Пушнин, Р. И. Райкин, Alexander Razumov, Г. И. Рубцов, E. V. Ryabov, V. Samoliga, A. Satyshev, Alexey A. Silaev, A. A. Silaev, A. Sidorenkov, A. Skurikhin, A. Sokolov, L. Sveshnikova, V. Tabolenko, Л. Ткачев, А. Танаев, M. Ternovoy, R. Togoo, Nikita Ushakov, A. Vaidyanathan, П. А. Волчугов, Н. В. Волков, Д. Воронин, A. Zagorodnikov, Д. Журов, I. I. Yashin   +77 more
openalex   +1 more source

Resonant Interlayer Coupling in NbSe2‐Graphite Epitaxial Moiré Superlattices

Advanced Materials, EarlyView.
Combining angle‐resolved photoemission spectroscopy and density functional theory derived calculations, this work reveals strong interlayer coupling and moiré replicas of the graphite π states in molecular‐beam epitaxy grown van der Waals heterostructures of monolayer‐NbSe2/graphite, with implications for its collective phases that form. Abstract Moiré
Shu Mo, Ksenija Kovalenka, Sebastian Buchberger, Bruno K. Saika, Anugrah Azhar, Akhil Rajan, Andela Zivanovic, Yu‐Chi Yao, Rodion V. Belosludov, Matthew D. Watson, M Saeed Bahramy, Phil D.C. King   +11 more
wiley   +1 more source

Ultrafast Terahertz Field Control of the Emergent Magnetic and Electronic Interactions at Oxide Interfaces

Advanced Materials, EarlyView.
Intense single‐cycle THz electric‐field pulses enable ultrafast control of emergent electronic and magnetic states at LaNiO3/CaMnO3 interfaces. Combined X‐ray and optical probes reveal sub‐picosecond demagnetization driven by spin‐polarized currents and slower magnetoelastic dynamics linked to spin–lattice coupling.
Abigail M. Derrico, Martina Basini, Vivek Unikandanunni, Jay R. Paudel, Mikhail Kareev, Michael Terilli, Tsung‐Chi Wu, Afnan Alostaz, Christoph Klewe, Padraic Shafer, Andrei Gloskovskii, Christoph Schlueter, Claus M. Schneider, Jak Chakhalian, Stefano Bonetti, Alexander X. Gray   +15 more
wiley   +1 more source

Big Bang in dipole cosmology

European Physical Journal C: Particles and Fields
We continue the study of dipole cosmology framework put forward in Krishnan et al. (JCAP 07:020, 2023), a beyond FLRW setting that has a preferred direction in the metric which may be associated with a cosmological tilt, a cosmic dipole.
A. Allahyari, E. Ebrahimian, R. Mondol, M. M. Sheikh-Jabbari   +3 more
doaj   +1 more source

Nucleosynthesis constraints on the faint vector portal

EPJ Web of Conferences, 2015
New Abelian U(1)′ gauge bosons Vμ can couple to the Standard Model through mixing of the associated field strength tensor Vμν with the one from hypercharge, FμνY.
Fradette Anthony, Pospelov Maxim, Pradler Josef, Ritz Adam   +3 more
doaj   +1 more source

Gravitational-wave asteroseismology with fundamental modes from compact binary inspirals

Nature Communications, 2020
Independently measuring the tidal deformability and the fundamental oscillation mode (fmode) frequency enables tests of gravity and the nature of compact binaries.
Geraint Pratten, Patricia Schmidt, Tanja Hinderer   +2 more
doaj   +1 more source

High-Energy Neutrino Astronomy: A Glimpse of the Promised Land

, 2014
In 2012, physicists and astronomers celebrated the hundredth anniversary of the detection of cosmic rays by Viktor Hess. One year later, in 2013, there was first evidence for extraterrestrial high-energy neutrinos, i.e.
Spiering, Christian
core   +1 more source