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Related papers: The Proposed High Energy Telescope (HET) for EXIST

200 papers

ProtoEXIST2 (P2) was a prototype imaging X-ray detector plane developed for wide-field Time Domain Astrophysics (TDA) in the 5 - 200 keV energy band. It was composed of an 8 $\times$ 8 array of 5 mm thick, 2cm $\times$ 2cm pixelated (32…

Instrumentation and Methods for Astrophysics · Physics 2023-03-28 Arkadip Basak , Branden Allen , Jaesub Hong , Daniel P. Violette , Jonathan Grindlay

Wide-field (> 100 deg$^2$) hard X-ray coded-aperture telescopes with high angular resolution (< 2') will enable a wide range of time domain astrophysics. For instance, transient sources such as gamma-ray bursts can be precisely localized…

Instrumentation and Methods for Astrophysics · Physics 2016-12-28 Jaesub Hong , Branden Allen , Jonathan Grindlay , Scott Barthelmy

The High Energy Stereoscopic System (H.E.S.S.) is an array of five imaging atmospheric Cherenkov telescopes (IACTs) to study gamma-ray emission from astrophysical objects in the Southern hemisphere. It is the only hybrid array of IACTs,…

Instrumentation and Methods for Astrophysics · Physics 2023-07-19 S. Ohm , S. Wagner

CdZnTe (CZT) is a wide bandgap II-VI semiconductor developed for the spectroscopic detection of X-rays and {\gamma}-rays at room temperature. The Swift Burst Alert Telescope is using an 5240 cm2 array of 2 mm thick CZT detectors for the…

Instrumentation and Methods for Astrophysics · Physics 2011-02-09 Qiang Li , M. Beilicke , Kuen Lee , Alfred Garson , Q. Guo , Jerrad Martin , Y. Yin , P. Dowkontt , G. De Geronimo , I. Jung , H. Krawczynski

The capability of NuSTAR to detect polarization in the Compton scattering regime (>50 keV) has been investigated. The NuSTAR mission, flown on June 2012 a Low Earth Orbit (LEO), provides a unique possibility to confirm the findings of…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Simone Lotti , Lorenzo Natalucci , Paolo Giommi , B. Grefenstette , Fiona A. Harrison , Kristin K. Madsen , Matteo Perri , Simonetta Puccetti , Andreas Zoglauer

We have assembled a tiled array (220 cm2) of fine pixel (0.6 mm) imaging CZT detectors for a balloon borne wide-field hard X-ray telescope, ProtoEXIST2. ProtoEXIST2 is a prototype experiment for a next generation hard X-ray imager MIRAX-HXI…

Instrumentation and Methods for Astrophysics · Physics 2016-10-26 Jaesub Hong , Branden Allen , Jonathan Grindlay , Barbara Rodrigues , Jon Robert Ellis , Robert Baker , Scott Barthelmy , Peter Mao , Hiromasa Miyasaka , Jeff Apple

The construction of the H.E.S.S. (High Energy Stereoscopic System), a superior system of four 12 m imaging atmospheric Cherenkov telescopes, has been completed recently in the Namib desert close to Windhoek, at 1800 m above sea level. This…

Astrophysics · Physics 2009-11-13 A. Konopelko

High energy electron radiography (HEER) is a promising tool for high energy density physics diagnostics, apart from other tools like X/{\gamma} ray shadowgraphy and high energy proton radiography. Impressive progresses have been made in…

We present results of performance modelling for METIS, the Mid-infrared European Extremely Large Telescope (E-ELT) Imager and Spectrograph. Designed by a consortium of NOVA (Netherlands), UK Astronomy Technology Centre (UK), MPIA Heidelberg…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 Sarah Kendrew , Laurent Jolissaint , Bernhard Brandl , Rainer Lenzen , Eric Pantin , Alistair Glasse , Joris Blommaert , Lars Venema , Ralf Siebenmorgen , Frank Molster

Building on the success of the Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Gamma Ray Observatory, the Gamma-ray Large Area Space Telescope (GLAST) will make a major step in the study of such subjects as blazars,…

Astrophysics · Physics 2019-08-14 T. Kamae , T. Ohsugi , D. J. Thompson , K. Watanabe

The measurement of cosmic rays at energies exceeding 100 TeV per nucleon is crucial for enhancing the understanding of high-energy particle propagation and acceleration models in the Galaxy. HERD is a space-borne calorimetric experiment…

We investigate the physical properties of the 10 blazars at redshift greater than 2 detected in the 3-years all sky survey performed by the Burst Alert Telescope (BAT) onboard the Swift satellite. We find that the jets of these blazars are…

High Energy Astrophysical Phenomena · Physics 2015-05-14 G. Ghisellini , R. Della Ceca , M. Volonteri , G. Ghirlanda , F. Tavecchio , L. Foschini , G. Tagliaferri , F. Haardt , G. Pareschi , J. Grindlay

The High Energy cosmic-Radiation Detection (HERD) facility is one of several space astronomy payloads of the cosmic lighthouse program onboard China's Space Station, which is planned for operation starting around 2020 for about 10 years.…

Instrumentation and Methods for Astrophysics · Physics 2015-10-23 S. N. Zhang , the HERD collaboration

The exhilerating results from Swift in its first year of operations have opened a new era of exploration of the high energy universe. The surge to higher redshifts of the Gamma-ray bursts now imaged with increased sensitivity establishes…

Astrophysics · Physics 2015-06-24 Jonathan E. Grindlay

The MIRAX X-ray observatory, the first Brazilian-led astrophysics space mission, is designed to perform an unprecedented wide-field, wide-band hard X-ray (5-200 keV) survey of Galactic X-ray transient sources. In the current configuration,…

Instrumentation and Methods for Astrophysics · Physics 2015-06-16 Barbara H. G. Rodrigues , Jonathan E. Grindlay , Branden Allen , Jaesub Hong , Scott Barthelmy , Joao Braga , Flavio D'Amico , Richard E. Rothschild

Cadmium Zinc Telluride and Cadmium Telluride are the detector materials of choice for the detection of X-rays in the X-ray energy band E >= 5keV with excellent spatial and spectral resolution and without cryogenic cooling. Owing to recent…

The Event Horizon Telescope (EHT) is a very long baseline interferometer built to image supermassive black holes on event-horizon scales. In this paper, we investigate candidate sites for an expanded EHT array with improved imaging…

The Hard X-ray Modulation Telescope (HXMT) is a broad band X-ray astronomical satellite from 1 to 250 keV. Understanding the X-ray background in detail will help to achieve a good performance of the instrument. In this work, we make use of…

Instrumentation and Methods for Astrophysics · Physics 2015-11-11 Fei Xie , Juan Zhang , Li-Ming Song , Shao-Lin Xiong , Ju Guan

In this paper we present simulated observations of galaxies at z=2 and z=3 to probe the capabilities of next-generation telescopes (E-ELT and JWST) to measure the structural and photometrical properties of high redshift galaxies. We carry…

Astrophysics of Galaxies · Physics 2016-08-31 M. Gullieuszik , R. Falomo , L. Greggio , M. Uslenghi , D. Fantinel