Results 1 to 10 of about 2,093,256 (347)

The Swift X-ray Telescope Cluster Survey II. X-ray spectral analysis [PDF]

Astronomy & Astrophysics, 2014
(Abridged) We present a spectral analysis of a new, flux-limited sample of 72 X-ray selected clusters of galaxies identified with the X-ray Telescope (XRT) on board the Swift satellite down to a flux limit of ~10-14 erg/s/cm2 (SWXCS, Tundo et al.
Borgani, S., Campana, S., D'Avanzo, P., Fugazza, D., Liu, T., Moretti, A., Rosati, P., Tagliaferri, G., Tozzi, P., Tundo, E.   +9 more
core   +4 more sources

The Swift X-Ray Telescope [PDF]

Space Science Reviews, 2005
The Swift Gamma-Ray Explorer is designed to make prompt multiwavelength observations of Gamma-Ray Bursts (GRBs) and GRB afterglows. The X-ray Telescope (XRT) enables Swift to determine GRB positions with a few arcseconds accuracy within 100 seconds of the burst onset.
Burrows, D. N., Hill, J. E., Nousek, J. A., Kennea, J. A., Wells, A., Osborne, J. P., Abbey, A. F., Beardmore, A., Mukerjee, K., Short, A. D. T., Chincarini, G., Campana, S., Citterio, O., Moretti, A., Pagani, C., Tagliaferri, G., Giommi, P., Capalbi, M., Tamburelli, F., Angelini, L., Cusumano, G., Brauninger, H. W., Burkert, W., Hartner, G. D.   +23 more
semanticscholar   +9 more sources

Hard X-ray Bursts Recorded by the IBIS Telescope of the INTEGRAL Observatory in 2003-2009 [PDF]

, 2011
To find X-ray bursts from sources within the field of view of the IBIS/INTEGRAL telescope, we have analysed all the archival data of the telescope available at the time of writing the paper (the observations from January 2003 to April 2009).
A. N. Emel’yanov, Barret, Barret, C. Winkler, David, Dickey, F. Lebrun, I. V. Chelovekov, I. V. Chelovekov, I. V. Chelovekov, I. V. Chelovekov, Jonker, Makishima, N. A. Eismont, N. Lund, Oosterbroek, Parmar, R. Cornelisse, S. A. Grebenev, S. Mereghetti, Sakano, Salvo Di, Sidoli, Tarana, W. H. G. Lewin, Werner, Zand in’t   +26 more
core   +2 more sources

InFOCμS hard X-ray imaging telescope [PDF]

Experimental Astronomy, 2006
InFOCμS is a new generation balloon-borne hard X-ray telescope with focusing optics and spectroscopy. We had a successful 22.5-hour flight from Fort Sumner, NM on September 16,17, 2004. In this paper, we present the performance of the hard X-ray telescope, which consists of a depth-graded platinum/carbon multilayer mirror and a CdZnTe detector.
J. Tueller, H. A. Krimm, Takashi Okajima, S. D. Barthelmy, Scott M. Owens, P. J. Serlemitsos, Yang Soong, K. W. Chan, Yasushi Ogasaka, R. Shibata, Kouichi Tamura, Akihiro Furuzawa, Yuzuru Tawara, H. Kunieda, K. Yamashita   +14 more
openalex   +3 more sources

Background experiment of the low energy x-ray telescope detectors on insight-HXMT [PDF]

AIP Advances
The low energy x-ray telescope (LE) is one of the main instruments of the insight-hard x-ray modulation telescope, the first x-ray astronomical satellite of China.
Wei Li, Jingbin Lu, Yanji Yang, Yifan Zhang, Weiwei Cui, Juan Wang, Yong Chen   +6 more
doaj   +2 more sources

Potential of LOFT telescope for the search of dark matter [PDF]

, 2013
Large Observatory For X-ray Timing (LOFT) is a next generation X-ray telescope selected by European Space Agency as one of the space mission concepts within the ``Cosmic Vision'' programme.
Boyarsky, A., Iakubovskyi, D., Neronov, A., Ruchayskiy, O.   +3 more
core   +2 more sources

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.
Stephen L. O’Dell, Roger Brissenden, William N. Davis, Ronald F. Elsner, M. Elvis, Mark D. Freeman, T. J. Gaetz, P. Gorenstein, Mikhail V. Gubarev, D. Jerius, M. Juda, Jeffery J. Kolodziejczak, S. S. Murray, Robert Petre, William Podgorski, Brian D. Ramsey, Paul B. Reid, Timo T. Saha, D. A. Schwartz, Susan Trolier‐McKinstry, Martin C. Weisskopf, Rudeger H. T. Wilke, S. J. Wolk, William W. Zhang   +23 more
openalex   +4 more sources

Characterization of a lobster-eye type X-ray telescope [PDF]

EPJ Web of Conferences, 2022
Lobster-eye type X-ray telescopes use reflecting plano mirrors under grazing incidence and can observe a large field of view. As part of a Bavarian-Czech cooperation, two telescopes were build, equipped with mirrors coated with gold and iridium.
Döhring Thorsten, Stieglitz Veronika, Hudec Rene, Sapsai Iryna, Friedrich Peter, Burwitz Vadim   +5 more
doaj   +1 more source

Simulation of a Simple Wolter Telescope of Type I by Geant4 for Some Widely Used Materials [PDF]

Iranian Journal of Astronomy and Astrophysics, 2020
At the present work, the reflection of X-rays from surfaces composed of silicon, gold, iridium, and nickel is simulated in the range of E ≤ 5 keV energy for the two cases, which includes raw mirror surfaces and a typical Wolter-I optics-based X-ray ...
Mehdi Abbasian Motlagh, Gohar Rastegarzadeh   +1 more
doaj   +1 more source

Small Spacecraft Payload Study for X-ray Astrophysics including GRB Science

Universe, 2022
This paper presents microsatellite spacecraft payload study for prompt observation of transient astrophysical objects in X-ray energy range. By combining telescope concepts and miniaturized detectors, the small spacecraft will be able to probe the X-ray ...
Vladimír Dániel, Veronika Maršíková, Rene Hudec, Ladislav Pína, Adolf Inneman, Karel Pelc   +5 more
doaj   +1 more source