English
Related papers

Related papers: Cloudy in the microcalorimeter era: improved energ…

200 papers

We present 40 fully hydrodynamical numerical simulations of the intergalactic gas that gives rise to the Ly-alpha forest. We make artificial spectra from each and measure three output parameters: the mean flux, a measure of the most common…

Next-generation high-energy electron-positron colliders, operating as Higgs factories, require an unprecedented jet energy resolution for precision measurements of Higgs and Z/W bosons. To address this challenge, a conceptual design is…

Instrumentation and Detectors · Physics 2026-03-10 Baohua Qi , Fangyi Guo , Shu Li , Yong Liu , Manqi Ruan , Weizheng Song , Shengsen Sun , Yifang Wang , Yuexin Wang , Haijun Yang , Yang Zhang , Zhiyu Zhao

Optical observations of nova V1974 Cygni (Cygni 1992), spanning a 4 year period, have been used to study its spectroscopic evolution. The data cover a wavelength range from $\sim 3200 - 8000$ \AA and follows the nebular evolutionary phase…

Astrophysics · Physics 2009-10-31 A. Moro-Martin , P. M. Garnavich , A. Noriega-Crespo

Since the introduction of bolometers more than a century ago, they have been applied in a broad spectrum of contexts ranging from security and the construction industry to particle physics and astronomy. However, emerging technologies and…

Infrared interferometry has seen a revolution over the last few years. The advent of GRAVITY+ is about to enable high-contrast observations, all-sky coverage and faint science up to K=21, with the implementation on 8m-class telescope of…

Instrumentation and Methods for Astrophysics · Physics 2024-10-30 G. Bourdarot , F. Eisenhauer

The one-loop self-energy correction to the 1s electron g factor is evaluated to all orders in Z\alpha with an accuracy, which is essentially better than that of previous calculations of this correction. As a result, the uncertainty of the…

High Energy Physics - Phenomenology · Physics 2009-11-07 V. A. Yerokhin , P. Indelicato , V. M. Shabaev

Nowadays, several opacity codes are able to provide data for stellar structure models, but the computed opacities may show significant differences. In this work, we present state-of-the-art precise spectral opacity calculations, illustrated…

Solar and Stellar Astrophysics · Physics 2019-04-30 Jean-Christophe Pain , Franck Gilleron , Maxime Comet

X-ray lines of helium-like calcium (\ion{Ca}{19}) between 3.17~\AA\ and 3.21~\AA\ and associated \ion{Ca}{18} dielectronic satellites have previously been observed in solar flare spectra, and their excitation mechanisms are well…

Solar and Stellar Astrophysics · Physics 2018-08-15 K. J. H. Phillips , J. Sylwester , B. Sylwester , M. Kowalinski , M. Siarkowski , W. Trzebinski , S. Plocieniak , Z. Kordylewski

The next generation mass probes will obtain information on non--linear power spectra P(k,z) and their evolution, allowing us to investigate the nature of Dark Energy. To exploit such data we need high precision simulations, extending at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Luciano Casarini , Andrea V. Maccio' , Silvio A. Bonometto , Greg S. Stinson

We present the latest improvements in the Center for Radiative Shock Hydrodynamics (CRASH) code, a parallel block-adaptive-mesh Eulerian code for simulating high-energy-density plasmas. The implementation can solve for radiation models with…

Solar and Stellar Astrophysics · Physics 2012-06-08 B. van der Holst , G. Toth , I. V. Sokolov , B. R. Torralva , K. G. Powell , R. P. Drake

Advances in both instrumentation and data analysis software are now enabling the first ultra-high-resolution microcalorimeter gamma spectrometers designed for implementation in nuclear facilities and analytical laboratories. With…

Instrumentation and Detectors · Physics 2021-04-09 Mark Croce , Daniel Becker , Katrina E. Koehler , Joel Ullom

Arrays of low-temperature microcalorimeters provide a promising technology for X-ray astrophysics: the imaging spectrometer. A camera with at least several thousand pixels, each of which has an energy-resolving power ($E/\Delta…

Instrumentation and Methods for Astrophysics · Physics 2022-09-14 H. Akamatsu , W. B. Doriese , J. A. B. Mates , B. D. Jackson

We have developed a neural network potential energy function for use in drug discovery, with chemical element support extended from 41% to 94% of druglike molecules based on ChEMBL. We expand on the work of Smith et al., with their highly…

The CALICE collaboration has constructed highly granular hadronic and electromagnetic calorimeter prototypes to evaluate technologies for the use in detector systems at a future Linear Collider. The hadron calorimeter uses 7608 small…

Instrumentation and Detectors · Physics 2010-06-21 Katja Seidel

A two-body gas-phase reaction rate coefficient can be given by the usual Arrhenius-type formula which depends on temperature. The UMIST Database for Astrochemistry is a widely used database for reaction rate coefficients. They provide…

Astrophysics of Galaxies · Physics 2023-08-08 Gargi Shaw , Gary Ferland , M. Chatzikos

In digital holography, the coherent scattered light fields can be reconstructed volumetrically. By refocusing the fields to the sample planes, absorption and phase-shift profiles of sparsely distributed samples can be simultaneously…

Optics · Physics 2023-02-10 Jian Zhao , Yuzhuo Wang , Xing Huang , Saijun Wu

Gemini North adaptive optics imaging spectroscopy is presented for the Galactic ultra-compact HII (UCHII) region K3-50A. Data were obtained in the K-band using the Near-infrared Integral Field Spectrograph (NIFS) behind the facility…

Solar and Stellar Astrophysics · Physics 2015-05-13 Robert D. Blum , Peter J. McGregor

We present the science case for a broadband X-ray imager with high-resolution spectroscopy, including simulations of X-ray spectral diagnostics of both active regions and solar flares. This is part of a trilogy of white papers discussing…

Using various latest cosmological datasets including Type-Ia supernovae, cosmic microwave background radiation, baryon acoustic oscillations, and estimations of the Hubble parameter, we test some dark energy models with parameterized…

Cosmology and Nongalactic Astrophysics · Physics 2022-12-28 Jing Yang , Xin-Yan Fan , Chao-Jun Feng , Xiang-Hua Zhai

The X-shooter Spectral Library (XSL) is a large empirical stellar library used as a benchmark for the development of stellar population models. The inclusion of $\alpha$-elements abundances is crucial to disentangling the chemical evolution…

Astrophysics of Galaxies · Physics 2023-04-19 Pablo Santos-Peral , Patricia Sánchez-Blázquez , Alexandre Vazdekis , Pedro A. Palicio
‹ Prev 1 8 9 10 Next ›