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A space-based superconducting gravitational low-frequency wave detector is considered. Sensitivity of the detector is sufficient to use the detector as a partner of other contemporary low-frequency detectors like LIGO and LISA. This device…

General Relativity and Quantum Cosmology · Physics 2009-04-21 Leonid Verozub

This chapter starts with a discussion of the main qualitative differences between UV and mid-IR filaments: from multiphoton ionization in the UV to tunnel ionization in the near- to mid-IR. A general qualitative analysis of the properties…

Optics · Physics 2025-01-17 Ali Rastegari , Alejandro Aceves , Jean-Claude Diels

UVMag is a medium-size space telescope equipped with a high-resolution spectropolarimeter working in the UV and visible domains. It will be proposed to ESA for a future M mission. It will allow scientists to study all types of stars as well…

Solar and Stellar Astrophysics · Physics 2015-06-22 Coralie Neiner , the UVMag consortium

Ultralight Dark Matter (ULDM) offers an alternative to cold dark matter, characterized by wavelike behavior on galactic scales. This contribution summarizes our work~\cite{Blas:2024duy} on how solitonic cores induced by ULDM affect…

High Energy Astrophysical Phenomena · Physics 2025-03-07 Silvia Gasparotto

We discuss the use of commercial high-power light emitting diodes (LEDs) as a light source for fluorescence pressure measurements. A relatively broad light emitting spectra of single color LEDs (in comparison with lasers) do not prevent…

Materials Science · Physics 2023-05-19 Rustem Khasanov , Matthias Elender , Stefan Klotz

Recent advances in LED technology have allowed the development of high-brightness deep-UV LEDs with potential applications in water purification, gas sensing and as excitation sources in fluorescence microscopy. The emission pattern of an…

Instrumentation and Detectors · Physics 2020-06-24 Mollie McFarlane , Gail McConnell

We describe a flasher system designed for use in monitoring the gains of the photomultiplier tubes used in the VERITAS gamma-ray telescopes. This system uses blue light-emitting diodes (LEDs) so it can be operated at much higher rates than…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 D. Hanna , A. McCann , M. McCutcheon , L. Nikkinen

Understanding space weather is vital for the protection of our terrestrial and space infrastructure. In order to predict space weather accurately, large amounts of data are required, particularly in the extreme ultraviolet (EUV) spectrum.…

Solar and Stellar Astrophysics · Physics 2024-09-02 Manuel Indaco , Daniel Gass , William James Fawcett , Richard Galvez , Paul J. Wright , Andrés Muñoz-Jaramillo

The EUSO (Extreme Universe Space Observatory) project is developing a new mission concept for the scientific research of Ultra High Energy Cosmic Rays (UHECRs) from space. The EUSO wide-field telescope will look down from space onto the…

Instrumentation and Methods for Astrophysics · Physics 2016-10-12 Enrico Bozzo , Thomas Burch , Alessandra Ciapponi , Clemens Heese , Arno Hoogerwerf , Nicholas Lan , Andrii Neronov , Vincent Revol , Ross Stanley

The extreme ultraviolet portion of the solar spectrum contains a wealth of diagnostic tools for probing the lower solar atmosphere in response to an injection of energy, particularly during the impulsive phase of solar flares. These include…

Solar and Stellar Astrophysics · Physics 2015-09-16 Ryan O. Milligan

Deep-UV ~ 250 nm (4.96 eV) tilted in-situ co-illumination of the sample under imaging by scanning electron microscope (SEM) is developed at a robust and practical instrument level. Precise mechanical control of the lateral position and tilt…

High resolution, ultraviolet imaging is often unavailable across the sky, even in heavily studied fields such as the Chandra Deep Field - South. The Habitable Worlds Observatory is one of two upcoming missions with the possibility of…

Astrophysics of Galaxies · Physics 2025-10-03 Kyle Cook , Benne Holwerda , Clayton Robertson

The centres of galaxies are powerful laboratories to test the current $\Lambda$CDM model for structure formation and evolution. While these sub-galactic scales can be directly investigated in the local Universe, it is observationally…

Astrophysics of Galaxies · Physics 2022-02-18 Cristiana Spingola

A number of exciting concepts are under development for Flagship, Probe class, Explorer class, and Suborbital class NASA missions in the ultraviolet/optical spectral ranges. These missions will depend on high performance silicon detector…

Hybrid integrated diode lasers have so far been realized using silicon, polymer, and silicon nitride (Si3N4) waveguide platforms for extending on-chip tunable light engines from the infrared throughout the visible range. Here we demonstrate…

A light source of selective functionalities of wavelengths, illumination periods, and intensities is desirable for investigating performance parameters as well as the quality of different layers and interfaces of solar cells. Conventional…

Instrumentation and Detectors · Physics 2023-02-16 Md. Saidul Islam , Syed Farid Uddin Farhad , Md. Saidul Islam , Nazmul Islam Tanvir , Suravi Islam

Using GALFORM, a semi-analytical model of galaxy formation in the Lambda cold dark matter cosmology, we study the rest-frame ultraviolet (UV) colours of Lyman-break galaxies (LBGs) in the redshift range 2.5 < z < 10. As the impact of dust…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 V. Gonzalez-Perez , C. G. Lacey , C. M. Baugh , C. S. Frenk , S. M. Wilkins

Free floating Test Masses (TM) of inertial reference instruments accumulate charge mainly through the triboelectric effect during separation from their housings and, if in the space environment, from cosmic radiation. These charges will…

Space Physics · Physics 2022-09-21 S. Wang , S. Saraf , J. Lipa , D. Yadav , S. Buchman

[Abbreviated] Rest-frame UV emission lines probe physical parameters of the emitting star-forming galaxies and their environments. The strongest main UV line, Ly$\alpha$, has been instrumental in advancing the general knowledge of galaxy…

The acquisition of deep Near-IR imaging with Wide Field Camera 3 on the Hubble Space Telescope has provided the opportunity to study the very-high redshift Universe. For galaxies up to $z\approx 7.7$ sufficient wavelength coverage exists to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Stephen M. Wilkins , Andrew J. Bunker , Elizabeth Stanway , Silvio Lorenzoni , Joseph Caruana