Tag: Athena

New Study on Thermalization of X-IFU Instrument’s Ultra-Thin Al-Coated Filters led by N. Montinaro (INAF – OAPA)

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X-ray astronomy is aimed at the understanding of the high-energy phenomena occurring in the Universe. Since our atmosphere blocks the X-ray photons, this branch of astronomy relies on observations made with satellites. In the past 30 years, X-ray astronomical observations had two main actors: the NASA satellite Chandra and XMM/Newton of the European Space Agency (ESA). The future, instead, goes

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A chapter wrote by M. Barbera, U. Lo Cicero and L. Sciortino (INAF-OAPA) on the filters for X-ray telescopes is included in the: “Handbook of X-ray and gamma ray astrophysics”

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X-ray astronomy explores the high-energy Universe. X-rays are, in fact, high energy photons emitted by very hot gas (with temperature of some milion degrees) or by processes involving relativistic particles. Some astronomical sources of X-rays radiation are: accreting black holes, such as the supermassive black holes at the center of active galaxies, stellar coronae, supernova remnants, and clusters of galaxies.

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Testing X-IFU performances. Published on SPIE: “Testing the X-IFU calibration requirements: an example for quantum efficiency and energy resolution” of E. Cucchetti (IRAP, CNRS, Universite’ de Toulouse)

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of Mario Giuseppe Guarcello    ( follow mguarce)   In the past ten years the X-ray Universe has been explored mainly by two telescopes: the NASA satellite Chandra and the ESA satellite XMM-Newton. These two telescopes are still operating efficiently. However, the scientific community has already started planning the next generation of instruments for X-ray astronomy. In Europe, the future in

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Palermo ospiterà il meeting “Exploring the Hot and Energetic Universe”

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di Mario Giuseppe Guarcello    ( segui mguarce)     Dal 24 al 27 Settembre 2018, si terrà a Palermo, presso il Real Teatro di S. Cecilia, il meeting internazionale “Exploring the Hot and Energetic Universe”, dedicato al telescopio ai raggi X Athena (Advanced Telescope for High-Energy Astrophysics). Athena, una missione in fase di studio del programma “Cosmic Vision” di ESA

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Maggio 2017, la ricerca in evidenza: ATHENA, un occhio nuovo per scrutare l’Universo ad alte energie

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Pur essendo sempre spettacolare ed affascinante, l’Universo appare diverso quando lo si osserva in diverse bande dello spettro elettromagnetico. In particolare, quello osservabile ai raggi X è un Universo dominato da fenomeni violenti e particolarmente energetici: esplosioni e resti di supernovae; corone stellari con plasma a milioni di gradi e dominate da brillamenti ed espulsioni di massa; gli esotici oggetti compatti in

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5th Athena/WFI Proto-Consortium Meeting

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Inizia oggi il “5th Athena/WFI Proto-Consortium Meeting” , che si terrà il 25 e 26 Gennaio 2017 a Palermo presso la Sala delle Capriate al Palazzo Chiaramonte Steri.   Al meeting, organizzato dall’Universita’ degli Studi di Palermo – Dipartimento di Fisica e Chimica, e dall’Istituto Nazionale di Astrofisica – Osservatorio Astronomico di Palermo G.S. Vaiana, partecipano 76 astrofisici provenienti da

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