Results 81 to 90 of about 120,003 (344)
A Hubble Space Telescope Imaging Survey of Low-redshift Swift-BAT Active Galaxies* [PDF]
, 2021 Minjin Kim +3 more
openalex +1 more source
Cosmological information in the redshift-space bispectrum [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We use the Fisher-matrix formalism to investigate whether the galaxy bispectrum in redshift space, B, contains additional cosmological information with respect to the power spectrum, P.
V. Yankelevich, C. Porciani
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Anisometric carbon nanodots are synthesized directly from a liquid crystal precursor and embedded into polymer network liquid crystals to create soft, multifunctional photonic films. These hybrid devices exhibit polarized photoluminescence, broad UV absorption, and fast, electrically tunable light modulation.
Mangesh D. Patekari +4 more
wiley +1 more source
Electrostatic time dilation and redshift
Physics Letters B, 2020 We first present the salient features of the gravitational time dilation and redshift effects in two ways; by considering the oscillation frequencies/rates of clocks at different heights/potentials and by considering the photons emitted by these clocks ...
Murat Özer
doaj +1 more source
Advanced Functional Materials, EarlyView.Well‐structured graphene hybrid architectures featuring spatially resolved fluorescent properties represent a promising but so‐far elusive synthetic target. A robust and straightforward method for fabricating well‐organized graphene‐dye hybrid nanoassemblies through a combination of reductive patterning and conventional click chemistry is presented ...
Sabrin Al‐Fogra +12 more
wiley +1 more source
Peering into the Cosmic Dawn: JWST Cycle 1 Data Reveals Early Galaxy Candidates at Redshifts z > 9.5
Edinburgh Student Journal of ScienceObserving high-redshift objects provides a window into the past, enabling insight into galaxy formation, matter distribution, and the nature of dark matter and energy.
Sev Zielinska
doaj +1 more source
Advanced Functional Materials, EarlyView.An innovative combination of size‐controlled template synthesis, partial cation exchange reactions, and dual shell passivation offers a new class of RoHS‐compliant, heavy metal‐free Cu‐Zn‐In‐Se/ZnS/Al2O3 core/shell/shell quantum dots (QDs), exhibiting long‐range tunability, highly efficient SWIR emission with remarkably narrow photoluminescence ...
Avijit Saha +8 more
wiley +1 more source
On the Observation of Distant Objects in General Relativity and Its Implications in Cosmology
UniverseWe carry out a careful analysis of the notion of observation of distant events in a curved Universe. This leads us to hypothesise that all measurements of our physical environment are performed with respect to a representation referential that obeys the ...
Théophile Caby
doaj +1 more source
Self‐Trapped Hole Migration and Defect‐Mediated Thermal Quenching of Luminescence in α‐ and β‐Ga2O3
Advanced Functional Materials, EarlyView.Temperature‐dependent photoluminescence and first‐principles calculations reveal self‐trapped hole migration as the microscopic origin of thermal quenching in α‐ and β‐Ga2O3. The low migration barrier in α‐Ga2O3 enables defect trapping and enhances blue luminescence, while the higher barrier in β‐Ga2O3 preserves ultraviolet emission at elevated ...
Nima Hajizadeh +11 more
wiley +1 more source
Redshift and Photon Energy Attenuation Constant in Vacuum
Доклады Белорусского государственного университета информатики и радиоэлектроникиThere obtained an estimate of the minimum value of the photon energy attenuation constant in vacuum α: α = 8 · 10–19 m–1 based on quantum concepts of the structure of vacuum and data on the red shift of the emitter spectra of distant galaxies. Presumably,
A. A. Kurayev, V. V. Matveyenka
doaj +1 more source