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A sounding-rocket program called the Chromospheric Lyman-Alpha Spectro-Polarimeter (CLASP) is proposed to be launched in the summer of 2014. CLASP will observe the solar chromosphere in Ly-alpha (121.567 nm), aiming to detect the linear…

Instrumentation and Methods for Astrophysics · Physics 2014-07-18 H. Watanabe , N. Narukage , M. Kubo , R. Ishikawa , T. Bando , R. Kano , S. Tsuneta , K. Kobayashi , K. Ichimoto , J. Trujillo-Bueno

The CZT detector on the Infocus hard X-ray telescope is a pixellated solid-state device capable of imaging spectroscopy by measuring the position and energy of each incoming photon. The detector sits at the focal point of an 8m focal length…

Solar flare prediction plays an important role in understanding and forecasting space weather. The main goal of the Helioseismic and Magnetic Imager (HMI), one of the instruments on NASA's Solar Dynamics Observatory, is to study the origin…

Instrumentation and Methods for Astrophysics · Physics 2021-09-08 Yasser Abduallah , Jason T. L. Wang , Yang Nie , Chang Liu , Haimin Wang

Solar observations at sub-mm, mm and cm wavelengths offer a straightforward diagnostic of physical conditions in the solar atmosphere because they yield measurement of brightness temperature which, for optically thick features, equals…

Solar and Stellar Astrophysics · Physics 2022-09-07 Costas Alissandrakis , Timothy Bastian , Roman Brajša

Stellar seismology reveals some interior properties of thousands of solar-type stars but the solar seismic sound speed stays puzzling since a decade as it disagrees with the Standard Solar Model (SSM) prediction. One of the explanations of…

Solar and Stellar Astrophysics · Physics 2015-09-14 M. Le Pennec , X. Ribeyre , J. -E. Ducret , S. Turck-Chièze

The Sloan Digital Sky Survey (SDSS) will carry out a digital photometric and spectroscopic survey over pi steradians in the northern Galactic cap. An array of CCD detectors used in drift-scan mode will image the sky in five passbands to a…

Astrophysics · Physics 2007-05-23 Jon Loveday

The European Solar Telescope (EST) is a project aimed at studying the magnetic connectivity of the solar atmosphere, from the deep photosphere to the upper chromosphere. Its design combines the knowledge and expertise gathered by the…

SARG is the high resolution spectrograph of TNG. It has been in operation since late spring 2000. SARG is a cross dispersed echelle spectrograph; it offers both single object and long slit (up to 26 arcsec) observing modes covering a…

Instrumentation and Methods for Astrophysics · Physics 2023-02-22 Gratton R. , Bonanno G. , Bruno P. , Cali A. , Cosentino R. , Desidera S. , Farisato G. , Martorana G. , Rebeschini M. , Scuderi S. , Timpanaro M

Integral field spectrographs are major instruments to study the mechanisms involved in the formation and the evolution of early galaxies. When combined with multi-object spectroscopy, those spectrographs can behave as machines used to…

Astrophysics · Physics 2008-11-26 Francois Assemat , Eric Gendron , Francois Hammer

This paper presents the design and science goals for the SkyMapper telescope. SkyMapper is a 1.3m telescope featuring a 5.7 square degree field-of-view Cassegrain imager commissioned for the Australian National University's Research School…

Chromatic calorimetry (CCAL) analyses particle detection by utilizing scintillators with distinct emission wavelengths to measure the longitudinal energy deposition of particle showers in high-energy physics, improving particle…

High Energy Physics - Experiment · Physics 2025-09-12 Devanshi Arora

High-resolution spectra of a giant solar quiescent filament were taken with the Echelle spectrograph at the Vacuum Tower Telescope (VTT; Tenerife, Spain). A mosaic of various spectroheliograms (H\alpha, H\alpha\ +/- 0.5\AA\ and Na D2) were…

Solar and Stellar Astrophysics · Physics 2015-06-17 C. Kuckein , C. Denker , M. Verma

Due to the finite size of the disk and the temperature fluctuations producing the variability, microlensing changes the actual time delays between images of strongly lensed AGN on the $\sim$day(s) light-crossing time scale of the emission…

Astrophysics of Galaxies · Physics 2020-08-28 Kai Liao

MISTRAL is a visible and near infrared imager and spectrograph working with the $1.93m$ telescope at L'Observatoire de Haute-Provence. The goal of the present project is to design and build one custom lens covering the entire working band…

Instrumentation and Methods for Astrophysics · Physics 2024-10-03 Eduard Muslimov , Jerome Schmitt , Christophe Adami , Michel Dennefeld , Marc Ferrari

The advancement of observational technologies and software for processing and visualizing spectro-polarimetric microwave data obtained with the RATAN-600 radio telescope opens new opportunities for studying the physical characteristics of…

Solar and Stellar Astrophysics · Physics 2024-12-12 I. Knyazeva , I. Lysov , E. Kurochkin , A. Shendrik , D. Derkach , N. Makarenko

The CHIRON spectrometer is a new high-resolution, fiber-fed instrument on the 1.5 meter telescope at Cerro Tololo Inter-America Observatory (CTIO). To optimize use of the instrument and limited human resources, we have designed an…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 John M. Brewer , Matthew Giguere , Debra A. Fischer

The Atacama Large Millimeter-Submillimeter Array (ALMA) has opened a new window for studying the Sun via high-resolution high-sensitivity imaging at millimeter wavelengths. In this contribution I review the capabilities of the instrument…

Solar and Stellar Astrophysics · Physics 2019-02-13 Maria Loukitcheva

This paper describes the development of X-ray diffractive optics for imaging solar flares with better than 0.1 arcsec angular resolution. X-ray images with this resolution of the \geq10 MK plasma in solar active regions and solar flares…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 B. R. Dennis , G. K. Skinner , M. J. Li , A. Y. Shih

SoLAr is a new concept for a liquid-argon neutrino detector technology to extend the sensitivities of these devices to the MeV energy range - expanding the physics reach of these next-generation detectors to include solar neutrinos. We…

As the precision frontier of large-area survey astrophysics advances towards the one millimagnitude level, flux calibration of astronomical instrumentation remains an ongoing challenge. We describe initial testing of silicon solar cells as…

Instrumentation and Methods for Astrophysics · Physics 2019-10-01 Sasha Brownsberger , Nicholas Mondrik , Christopher W. Stubbs