Results 11 to 20 of about 77,058 (202)

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 ...
Brissenden, R. J., Davis, W. N., Elsner, R. F., Elvis, M., Freeman, M., Gaetz, T., Gorenstein, P., Gubarev, M. V., Jerius, D., Juda, M., Kolodziejczak, J. J., Murray, S., O'Dell, S. L., Petre, R., Podgorski, W., Ramsey, B. D., Reid, P. B., Saha, T., Schwartz, D. A., Trolier-McKinstry, S., Weisskopf, M. C., Wilke, R. H. T., Wolk, S., Zhang, W. W.   +23 more
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A Soft X-ray Polarimeter Designed for Broad-band X-ray Telescopes [PDF]

SPIE Proceedings, 2007
A novel approach for measuring linear X-ray polarization over a broad-band using conventional imaging optics and cameras is described. A new type of high efficiency grating, called the critical angle transmission grating is used to disperse soft X-rays ...
Marshall, Herman L.
core   +2 more sources

The Swift X-Ray Telescope

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
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The X-Ray Telescope onboard Suzaku [PDF]

Publications of the Astronomical Society of Japan, 2007
Abstract We present the design parameters, production process, and in-flight performance of the X-ray telescope (XRT) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of ${3\rlap {.}{}^{\mathrm {\prime }}6}$, to ${1\rlap {.}{}^{\mathrm {\prime }}8}$–${2\rlap {.}{}^{\mathrm
Serlemitsos, P., Soong, Y., Chan, K., Okajima, T., Lehan, J., Maeda, Y., Itoh, K., Mori, H., Iizuka, R., Itoh, A., Inoue, H., Okada, S., Yokoyama, Y., Itoh, Y., Ebara, M., Nakamura, R., Suzuki, K., Ishida, M., Hayakawa, A., Inoue, C., Okuma, S., Kubota, R., Suzuki, M., Osawa, T., Yamashita, K., Kunieda, H., Tawara, Y., Ogasaka, Y., Furuzawa, A., Tamura, K., Shibata, R., Haba, Y., Naitou, M., Misaki, K.   +33 more
openaire   +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, T. Okajima, S. D. Barthelmy, S. M. Owens, P. J. Serlemitsos, Y. Soong, K. -W. Chan, Y. Ogasaka, R. Shibata, K. Tamura, A. Furuzawa, Y. Tawara, H. Kunieda, K. Yamashita   +14 more
openaire   +1 more source

A Focusing X-Ray Telescope Monochromator [PDF]

International Astronomical Union Colloquium, 1972
In order to resolve clusters of X-ray lines emitted by flares (Fritz et al, 1967; Neupert and Swartz, 1970) and to determine line shapes, a considerable resolving power is needed. The angular size of flares, typically about 2’ will not allow the necessary resolution to be obtained without a very fine slit system combined with the flat crystal X-ray ...
Aaron S. Filler, Benjamin S. Fraenkel
openaire   +1 more source

Spectral Energy Distributions of Southern Binary X-Ray Sources

The Astrophysical Journal Supplement Series, 2023
The rapid variability of X-ray binaries (XRBs) produces a wide range of X-ray states that are linked to activity across the electromagnetic spectrum. It is particularly challenging to study a sample of sources large enough to include all types in their ...
John M. Dickey, S. D. Vrtilek, Michael McCollough, Bram Boroson, John A. Tomsick, Charles Bailyn, Jay M. Blanchard, Charlotte Johnson   +7 more
doaj   +1 more source

The x-ray telescope of CAST

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

An extraordinary view of the universe: The use of X-ray vision in space science

Mètode Science Studies Journal: Annual Review, 2017
X-ray emission from cosmic sources indicates that these sources are heated to temperatures exceeding a million degrees or that they contain highly energetic particles.
Aneta Siemiginowska
doaj   +1 more source

Detector and Telescope Development for ProtoEXIST and Fine Beam Measurements of Spectral Response of CZT Detectors [PDF]

, 2005
We outline our plan to develop ProtoEXIST, a balloon-borne prototype experiment for the Energetic X-ray Imaging Survey Telescope (EXIST) for the Black Hole Finder Probe. EXIST will consist of multiple wide-field hard X-ray coded-aperture telescopes.
Cook, W. R., Copete, A., Craig, W. W., Gehrels, N., Grindlay, J. E., Harrison, F., Hong, J., Vadawale, S. V.   +7 more
core   +2 more sources