Found 120 results, showing the newest relevant preprints. Sort by relevancy only.Update me on new preprints

Planetary-scale variations in winds and UV brightness at the Venusian cloud top: Periodicity and temporal evolution

Planetary-scale waves at the Venusian cloud-top cause periodic variations in both winds and ultraviolet (UV) brightness. Expand abstract.
148 days ago
2/10 relevant
arXiv

The role of surface depletion layer effects on the enhancement of the UV emission in ZnO induced by a nanostructured Al surface coating

These include increased UV enhancement due to the formation of a surface depletion layer induced by the metal surface coating, which also passivates competitive non-radiative surface recombination channels found in uncoated ZnO. Expand abstract.
148 days ago
2/10 relevant
arXiv

UV considerations on scattering amplitudes in a web of theories

These results complete the observations that, like IR considerations, UV scaling is sufficient to fully constrain a wide range of tree-level amplitudes, for both gauge, gravity, and effective field theories. Expand abstract.
149 days ago
2/10 relevant
arXiv

UV bright red-sequence galaxies: how do UV upturn systems evolve in redshift and stellar mass?

Additionally, we show that the fraction of UV upturn hosts rises with increasing stellar mass. Expand abstract.
151 days ago
2/10 relevant
arXiv

Discarding the disc in a changing state AGN: the UV/X-ray relation in NGC 4151

Recent monitoring campaigns designed to map the accretion regime in AGN show major discrepancies with models where the optical/ultraviolet (UV) is produced by X-ray-illuminated, optically thick material in a disc geometry within a few hundred gravitational radii. Expand abstract.
155 days ago
2/10 relevant
arXiv

Development of a UV-transparent Lens Array for Enlarging the Effective Area of Multichannel SiPMs

We developed a UV-transparent lens array that can increase the photon detection efficiency of a silicon photomultiplier (SiPM) array comprising of 64 pixels ($3\times3$ mm$^2$ each) and 0.2-mm gaps. Expand abstract.
155 days ago
2/10 relevant
arXiv

Stellar Physics with High-Resolution UV Spectropolarimetry

UV spectropolarimetry is proposed on missions of various sizes and scopes, from POLLUX on the 15-m telescope LUVOIR to the Arago M-size mission dedicated to UV spectropolarimetry. Expand abstract.
165 days ago
2/10 relevant
arXiv

Gravity as universal UV completion: Towards a unified view of Swampland conjectures

On the basis of the idea that gravity defines a universal UV-completion and using a form of UV/IR correspondence we revisit some Swampland conjectures, in particular de Sitter and infinite distance conjectures, from the point of view of renormalization group energy flow. Expand abstract.
170 days ago
2/10 relevant
arXiv

Black silicon UV photodiodes achieve >130% external quantum efficiency

While the results can readily have a significant impact on the UV sensor industry, the underlying technological c oncept can be applied to other semiconductor materials, thereby extending above unity response to longer wavelengths. Expand abstract.
170 days ago
2/10 relevant
arXiv

Realizing IR theories by projections in the UV

What is more, RG flows of the bulk theory can be described in terms of RG flows of the codimension-one identity defect in the fixed UV bulk theory. Expand abstract.
172 days ago
2/10 relevant
arXiv