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Very-high-energy neutrinos can be observed by detecting air shower signals. Detection of transient target of opportunity (ToO) neutrino sources is part of a broader multimessenger program. The Extreme Universe Space Observatory on a Super…

High Energy Astrophysical Phenomena · Physics 2023-10-24 J. A. Posligua , T. Heibges , H. Wistrand , C. Guépin , M. H. Reno , T. Venters

OWL uses the Earth's atmosphere as a vast calorimeter to fully enable the emerging field of charged-particle astronomy with high-statistics measurements of ultra-high-energy cosmic rays (UHECR) and a search for sources of UHE neutrinos and…

Instrumentation and Methods for Astrophysics · Physics 2013-07-16 John F. Krizmanic , John W. Mitchell , Robert E. Streitmatter

This contribution is a survey of the available experimental radiation data measured in the VUV range related to hypersonic atmospheric entry. The objective is to identify the experimental datasets already gathered during aerothermodynamics…

Instrumentation and Methods for Astrophysics · Physics 2020-07-08 Philippe Reynier

The potential detection of phosphine in the atmosphere of Venus has reignited interest in the possibility of life aloft in this environment. If the cloud decks of Venus are indeed an abode of life, it should reside in the "habitable zone"…

Instrumentation and Methods for Astrophysics · Physics 2020-11-10 Andreas M. Hein , Manasvi Lingam , T. Marshall Eubanks , Adam Hibberd , Dan Fries , William Paul Blase

We present program objectives and specifications for the first generation Ultra-Fast Astronomy (UFA) observatory which will explore a new astrophysical phase space by characterizing the variability of the optical (320 nm - 650 nm) sky in…

Instrumentation and Methods for Astrophysics · Physics 2020-01-01 Siyang Li , George F. Smoot , Bruce Grossan , Albert Wai Kit Lau , Marzhan Bekbalanova , Mehdi Shafiee , Thorsten Stezelberger

Time-series photometry from space in the ultraviolet can be presently done with only a few platforms, none of which is able to provide wide-field long-term high-cadence photometry. We present a concept of UVSat, a twin space telescope which…

Pollux is a high-resolution spectrograph and spectropolarimeter working from 100 nm to 1.8 microns proposed for HWO by a European consortium. Pollux will allow us to study stellar and (exo)planetary systems, as well as cosmic ecosystems.…

Instrumentation and Methods for Astrophysics · Physics 2026-02-11 Coralie Neiner , Jean-Claude Bouret , Luca Fossati , David le Mignant , Eduard Muslimov , Ana Ines Gomez de Castro , Frédéric Marin

A new air-showering physics may rise in next years at horizon, offering at different angles and altitudes a fine tuned filtered Cosmic Rays astrophysics and an upward Neutrino induced air-showering astronomy. Most of this opportunity arises…

Astrophysics · Physics 2009-09-29 D. Fargion

The ongoing optical time-domain astronomy surveys are routinely reporting fifty transient candidates per night. Here, I investigate the demographics of astronomical transients and supernova classifications reported to the Transient Name…

Instrumentation and Methods for Astrophysics · Physics 2020-04-14 S. R. Kulkarni

The quest for other habitable worlds and the search for life among them are major goals of modern astronomy. One way to make progress towards these goals is to obtain high-quality spectra of a large number of exoplanets over a broad range…

We describe URCHIN, a reverse ray tracing radiative transfer scheme optimised to model self-shielding from the post-reionisation ultraviolet (UV) background in cosmological simulations. The reverse ray tracing strategy provides several…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-24 Gabriel Altay , Tom Theuns

(abridged) The far-UV wavelength range (912-2000A) provides access to atomic and molecular transitions of many species the interstellar medium (ISM), circumgalactic medium (CGM), and intergalactic medium, within phases spanning a wide range…

For solar-system objects, ultraviolet spectroscopy has been critical in identifying sources for stratospheric heating and measuring the abundances of a variety of hydrocarbon and sulfur-bearing species, produced via photochemical…

Adaptive optics systems are critical in any application where highly resolved imaging or beam control must be performed through a dynamic medium. Such applications include astronomy and free-space optical communications, where light…

Amplified Tau-airshower at horizons may well open a novel powerful windows, at PeV-EeV energy, to Neutrino Astronomy. Neutrino induced air-showering astronomy rise because of neutrino masses, their mixing and the consequent replenishment of…

Astrophysics · Physics 2008-11-26 D. Fargion

Mini-EUSO is a space experiment selected to be installed inside the International Space Station. It has a compact telescope with a large field of view ($44 $\times$ 44$ sq. deg.) focusing light on an array of photo-multipliers tubes in…

Instrumentation and Methods for Astrophysics · Physics 2019-07-02 Sara Turriziani , Jonah Ekelund , Katsuhiko Tsuno , Marco Casolino , Toshikazu Ebisuzaki

We present a model for atmospheric absorption of solar ultraviolet (UV) radiation. The initial motivation for this work is to predict this effect and correct it in Sounding Rocket (SR) experiments. In particular, the Full-sun Ultraviolet…

Atmospheric and Oceanic Physics · Physics 2023-02-17 Nicolas Donders , Genevieve Vigil , Adam Kobelski , Amy Winebarger , Larry Paxton , Charles Kankelborg , Gary Zank

Future prospects for solar spectroscopy missions operating in the extreme ultraviolet (EUV) and soft X-ray (SXR) wavelength ranges, 1.2-1600 Angstroms, are discussed. NASA is the major funder of Solar Physics missions, and brief summaries…

Solar and Stellar Astrophysics · Physics 2021-03-19 Peter R. Young

Atmospheric conditions at the site of a cosmic ray observatory must be known well for reconstructing observed extensive air showers, especially when measured using the fluorescence technique. For the Pierre Auger Observatory, a…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 Bianca Keilhauer , Martin Will