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The High Resolution Energetic X-Ray Imager (HREXI) CZT detector development program at Harvard is aimed at developing tiled arrays of finely pixelated CZT detectors for use in wide-field coded aperture 3-200 keV X-ray telescopes. A pixel…

Instrumentation and Methods for Astrophysics · Physics 2020-04-09 Arkadip Basak , Branden Allen , Jaesub Hong , Daniel P. Violette , Jonathan Grindlay

The calibration hardware system of the Large Synoptic Survey Telescope (LSST) is designed to measure two quantities: a telescope's instrumental response and atmospheric transmission, both as a function of wavelength. First of all, a…

Instrumentation and Methods for Astrophysics · Physics 2018-06-08 Michael W. Coughlin , Susana Deustua , Augustin Guyonnet , Nicholas Mondrik , Joseph P. Rice , Christopher W. Stubbs , John T. Woodward

Stance detection seeks to identify the viewpoints of individuals either in favor or against a given target or a controversial topic. Current advanced neural models for stance detection typically employ fully parametric softmax classifiers.…

Machine Learning · Computer Science 2024-06-21 Yinghan Cheng , Qi Zhang , Chongyang Shi , Liang Xiao , Shufeng Hao , Liang Hu

In February 2014, the SHARK-VIS (System for High contrast And coronography from R to K at VISual bands) Forerunner, a high contrast experimental imager operating at visible wavelengths, was installed at LBT (Large Binocular Telescope). Here…

Instrumentation and Methods for Astrophysics · Physics 2017-08-09 F. Pedichini , M. Stangalini , A. Ambrosino , A. Puglisi , E. Pinna , V. Bailey , L. Carbonaro , M. Centrone , J. Christou , S. Esposito , J. Farinato , F. Fiore , E. Giallongo , J. M. Hill , P. M. Hinz , L. Sabatini

The Cosmic Evolution Survey (COSMOS) is a Hubble Space Telescope (HST) treasury project.The COSMOS aims to perform a 2 square degree imaging survey of an equatorial field in $I$(F814W) band, using the Advanced Camera for Surveys (ACS). Such…

Various structures are visible within Spectro-Polarimetric High-contrast Exoplanet REsearch instrument (SPHERE) images that are not always straightforward to interpret. In this article we present a review of these features and demonstrate…

Instrumentation and Methods for Astrophysics · Physics 2019-07-09 Faustine Cantalloube , Kjetil Dohlen , Julien Milli , Wolfgang Brandner , Arthur Vigan

We are currently developing Cadmium Zinc Telluride (CZT) detectors for a next-generation space-borne hard X-ray telescope which can follow up on the highly successful NuSTAR (Nuclear Spectroscopic Telescope Array) mission. Since the launch…

Instrumentation and Methods for Astrophysics · Physics 2021-02-09 Jason Tang , Fabian Kislat , Henric Krawczynski

The rapid advancement of spatial transcriptomics (ST), i.e., spatial gene expressions, has made it possible to measure gene expression within original tissue, enabling us to discover molecular mechanisms. However, current ST platforms…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Xiaofei Wang , Stephen Price , Chao Li

We summarize the high-resolution science that has been done on high redshift galaxies with Adaptive Optics (AO) on the world's largest ground-based facilities and with the Hubble Space Telescope (HST). These facilities complement each…

Astrophysics · Physics 2008-11-26 R. A. Windhorst , N. P. Hathi , S. H. Cohen , R. A. Jansen , D. Kawata , S. P. Driver , B. Gibson

High precision differential Astrometry is the branch of astronomy that evaluates the relative position, distance and motion of celestial objects with respect to the stars present in the field of view. A mission called Theia has been…

Instrumentation and Methods for Astrophysics · Physics 2024-12-02 Manon Lizzana , Fabien Malbet , Pierre Kern , Fabrice Pancher , Sébastien Soler , Thierry Lepine , Alain Leger

The Habitable Worlds Observatory (HWO) mission will require coronagraphs capable of suppressing starlight at the $\sim 10^{-10}$ contrast level to directly image exo-Earths. High contrast achromatic coronagraphic masks are the missing…

Instrumentation and Methods for Astrophysics · Physics 2026-03-25 Niyati Desai , Garreth Ruane , Daniel Shanks , Lorenzo König , Susan Redmond , Bertrand Mennesson

The goal of LHCspin is to develop, in the next few years, innovative solutions and cutting-edge technologies to access spin physics in polarised fixed-target collisions at high energy, exploring the unique kinematic regime offered by LHC…

High Energy Physics - Experiment · Physics 2021-11-09 M. Santimaria , V. Carassiti , G. Ciullo , P. Di Nezza , P. Lenisa , S. Mariani , L. L. Pappalardo , E. Steffens

Current and future high contrast imaging instruments aim to detect exoplanets at closer orbital separations, lower masses, and/or older ages than their predecessors, with the eventual goal of directly detecting terrestrial-mass…

Instrumentation and Methods for Astrophysics · Physics 2021-08-31 Benjamin L. Gerard , Daren Dillon , Sylvain Cetre , Rebecca Jensen-Clem , Thomas D Yuzvinsky , Holger Schmidt

The Large Synoptic Survey Telescope (LSST) is a wide-field imaging system of unprecedented etendue. The initial goal of the project is to carry out a ten year imaging survey in six broad passbands (ugrizy) that cover $350 nm < \lambda < 1.1…

Instrumentation and Methods for Astrophysics · Physics 2019-05-14 Christopher W. Stubbs , Katrin Heitmann

The Spectrograph of the RISTRETTO instrument is now currently being manufactured. RISTETTO is an instrument designed to detect and characterize the reflected light of nearby exoplanets. It combines high contrast imaging and high resolution…

In a standard computed tomography (CT) image, pixels having the same Hounsfield Units (HU) can correspond to different materials and it is therefore challenging to differentiate and quantify materials. Dual-energy CT (DECT) is desirable to…

Medical Physics · Physics 2020-10-27 Wei Zhao , Tianling Lyu , Yang Chen , Lei Xing

With sub-microarcsecond angular accuracy, the \theia telescope will be capable of revealing the architectures of nearby exoplanetary systems down to the mass of Earth. This research addresses the challenges inherent in space astrometry…

Instrumentation and Methods for Astrophysics · Physics 2024-08-29 F. Malbet , M. Lizzana , F. Pancher , S. Soler , A. Léger , T. Lépine , G. A. Mamon , A. Sozzetti , A. Riva , D. Busonero , L. Labadie , P. -O. Lagage , R. Goullioud

The prospects of tests of CPT symmetry using precision spectroscopy of antihydrogen are discussed with special emphasis on the ground-state hyperfine structure, a measurement of which is the aim of the ASACUSA collaboration at the AD/ELENA…

High Energy Physics - Experiment · Physics 2022-09-07 Eberhard Widmann