Results 11 to 20 of about 111,221 (213)

Diffractive X-Ray Telescopes [PDF]

X-Ray Optics and Instrumentation, 2010
Diffractive X-ray telescopes using zone plates, phase Fresnel lenses, or related optical elements have the potential to provide astronomers with true imaging capability with resolution several orders of magnitude better than available in any other waveband.
Gerald K. Skinner, Gerald K. Skinner
openaire   +2 more sources

The x-ray telescope of CAST [PDF]

New Journal of Physics, 2007
19 pages, 25 figures and images, replaced by the revised version accepted for publication in New Journal of ...
D. Kang, Dieter H. H. Hoffmann, Lothar Strüder, Peter Friedrich, M. Davenport, S. Cebrián, Gerhard Lutz, J. Franz, T. Papaevangelou, R. Kotthaus, Markus Kuster, Markus Kuster, H. Fischer, J. Morales, C. Eleftheriadis, H. Bräuninger, J. N. Joux, C. Lasseur, Jakob Englhauser, A. Lippitsch, R. Hartmann, K. Königsmann, Julia Vogel, A Rodríguez, G. Hoffmeister, Zioutas, Zioutas, F.H. Heinsius   +27 more
openaire   +3 more sources

Analysis Methods to Localize and Characterize X-Ray Sources with the Microchannel X-Ray Telescope on Board the SVOM Satellite

The Astrophysical Journal, 2023
The Space-based multiband astronomical Variableonboard computing resources. This Object Monitor (SVOM) is a Sino–French space mission targeting high-energy transient astrophysical objects such as gamma-ray bursts.
Shaymaa Hussein, Florent Robinet, Martin Boutelier, Diego Götz, Aleksandra Gros, Benjamin Schneider   +5 more
doaj   +1 more source

VTXO: the virtual telescope for x-ray observations [PDF]

Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 2020
5 pages, 4 figures, submitted to the Proceedings of the 34th Annual Small Satellite Conference (SmallSat 2020)
Alice K. Harding, Philip C. Calhoun, John F. Krizmanic, John F. Krizmanic, Lloyd Purves, Chris R. Schrader, Kyle Rankin, Hyeongjun Park, Krishna Kota, Daniel T. Smith, Michael F. Corcoran, Neerav Shah, Laura E. Boucheron, Cassandra Webster, Steven Stochaj, Asal Nasari   +15 more
openaire   +5 more sources

Preliminary Feasibility Study of the Solar Observation Payloads for STSAT-CLASS Satellites [PDF]

Journal of Astronomy and Space Sciences, 2004
In this paper, we present preliminary feasibility studies on three types of solar observation payloads for future Korean Science and Technology Satellite (STSAT) programs. The three candidates are (1) an UV imaging telescope, (2) an UV spectrograph, and (
Yong-Jae Moon, Kyung-Seok Cho, Ho Jin, Jongchul Chae, Sungho Lee, Kwang-il Seon, Yeon-Han Kim, Young-Deuk Park   +7 more
doaj   +1 more source

Multilayer Mirror Based High-Resolution Solar Soft X-Ray Spectrometer

Frontiers in Astronomy and Space Sciences, 2021
Soft X-ray spectroscopy of the Sun is an important tool to understand the coronal dynamics and composition. The solar coronal X-ray spectrum below 1 keV is the least explored with high-resolution spectroscopy.
S. S. Panini, S. Narendranath, P. Sreekumar, K. Sankarasubramanian   +3 more
doaj   +1 more source

First Detection of X-Ray Polarization from the Accreting Neutron Star 4U 1820−303

The Astrophysical Journal Letters, 2023
This paper reports the first detection of polarization in the X-rays for atoll-source 4U 1820−303, obtained with the Imaging X-ray Polarimetry Explorer (IXPE) at 99.999% confidence level (CL). Simultaneous polarimetric measurements were also performed in
Alessandro Di Marco, Fabio La Monaca, Juri Poutanen, Thomas D. Russell, Alessio Anitra, Ruben Farinelli, Guglielmo Mastroserio, Fabio Muleri, Fei Xie, Matteo Bachetti, Luciano Burderi, Francesco Carotenuto, Melania Del Santo, Tiziana Di Salvo, Michal Dovčiak, Andrea Gnarini, Rosario Iaria, Jari J. E. Kajava, Kuan Liu, Riccardo Middei, Stephen L. O’Dell, Maura Pilia, John Rankin, Andrea Sanna, Jakob van den Eijnden, Martin C. Weisskopf, Anna Bobrikova, Fiamma Capitanio, Enrico Costa, Philip Kaaret, Alessio Marino, Paolo Soffitta, Francesco Ursini, Filippo Ambrosino, Massimo Cocchi, Sergio Fabiani, Herman L. Marshall, Giorgio Matt, Sara Elisa Motta, Alessandro Papitto, Luigi Stella, Antonella Tarana, Silvia Zane, Iván Agudo, Lucio A. Antonelli, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Immacolata Donnarumma, Victor Doroshenko, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Andrea Marinucci, Alan P. Marscher, Francesco Massaro, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Michela Negro, Chi-Yung Ng, Nicola Omodei, Chiara Oppedisano, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, Ajay Ratheesh, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois, Sergey S. Tsygankov, Roberto Turolla, Jacco Vink, Kinwah Wu, IXPE Collaboration   +119 more
doaj   +1 more source

Unraveling the Physics of Quasar Jets: Optical Polarimetry and Implications for the X-ray Emission Process

Galaxies, 2020
Since the launch of Chandra twenty years ago, one of the greatest mysteries surrounding Quasar Jets is the production mechanism for their extremely high X-ray luminosity. Two mechanisms have been proposed. In the first view, the X-ray emission is inverse-
Eric S. Perlman, Devon Clautice, Sayali Avachat, Mihai Cara, William B. Sparks, Markos Georganopoulos, Eileen Meyer   +6 more
doaj   +1 more source

High-resolution x-ray telescopes [PDF]

SPIE Proceedings, 2010
High-energy astrophysics is a relatively young scientific field, made possible by space-borne telescopes. During the half-century history of x-ray astronomy, the sensitivity of focusing x-ray telescopes-through finer angular resolution and increased effective area-has improved by a factor of a 100 million.
Mikhail V. Gubarev, Brian D. Ramsey, Ronald F. Elsner, Jeffery J. Kolodziejczak, Stephen L. O'Dell, Mark D. Freeman, Paul B. Reid, Terrance J. Gaetz, William A. Podgorski, Rudeger H. T. Wilke, Roger Brissenden, Michael Juda, Stephen S. Murray, Martin C. Weisskopf, William N. Davis, Daniel A. Schwartz, Scott J. Wolk, Martin Elvis, Paul Gorenstein, William W. Zhang, Timo T. Saha, Robert Petre, Diab Jerius, Susan Trolier-McKinstry   +23 more
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Science with the $AstroSat$ Soft X-ray Telescope: an overview [PDF]

, 2021
The Soft X-ray Telescope (SXT) aboard the $AstroSat$ satellite is the first Indian X-ray telescope in space. It is a modest size X-ray telescope with a charge coupled device (CCD) camera in the focal plane, which provides X-ray images in the $\sim 0.3-8.0$ keV band.
arxiv   +1 more source