Zobrazeno 1 - 10
of 25
pro vyhledávání: '"H.-J. Wiebicke"'
Autor:
George Gutman, K D Joensen, Paul Gorenstein, Herbert W. Schnopper, Eric Louis, I. L. Rasmussen, H-J Voorma, Peter K. Frederiksen, H.-J. Wiebicke, Allan Hornstrup, Konstantin N. Borozdin, Marc Legros, Niels J. Westergaard, Ulrich Geppert, E. H. Silver, Ingolf Halm, James L. Wood, Finn Erland Christensen, N.B. Koster, Salim Abdali
Publikováno v:
Journal de Physique III. 4:1599-1612
Nanometer scale structures such as multilayers, gratings and natural crystals are playing an increasing role in spectroscopic applications for X-ray astrophysics. A few examples are briefly described as an introduction to current and planned applicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2137c28e1ce05346de83e8b0b43fa77d
https://doi.org/10.1051/jp3:1994227
https://doi.org/10.1051/jp3:1994227
Autor:
Finn Erland Christensen, Niels J. Westergaard, Ingolf Halm, A Finoguenov, T Litvinova, Konstantin N. Borozdin, H.-J. Wiebicke
Publikováno v:
Physica Scripta. :139-141
We study the effects of the Point Spread Function (PSF) on the performance of the Objective Crystal Spectrometer (OCS) of the SODART telescope. The advantage of OCS/SODART over XMM and AXAF instruments in studying of the diffuse sources is illustrate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28946f7488737f4659c536c5b08f9c44
https://doi.org/10.1088/0031-8949/1998/t77/041
https://doi.org/10.1088/0031-8949/1998/t77/041
Publikováno v:
X-Ray and Gamma-Ray Instrumentation for Astronomy XI.
The Objective Crystal Spectrometer (OXS) is part of the SODART X-ray telescope onboard the future SPECTRUM-RONTGEN-GAMMA (SRG) mission. The SODART-OXS energy resolution is compared with those of the gratings of the XMM-NEWTON and CHANDRA telescopes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af54d246b3cf5b400411000e4b417d05
https://doi.org/10.1117/12.409155
https://doi.org/10.1117/12.409155
Autor:
Oleg V. Stekolchikov, Valentin K. Sysoev, Finn Erland Christensen, Oleg V. Terekhov, I. L. Rasmussen, Josef Polny, Peter K. Frederiksen, Konstantin N. Borozdin, H.-J. Wiebicke, Tatyana Litvinova, Sergei N. Aleksashkin, Roald S. Kremnev
Publikováno v:
SPIE Proceedings.
This paper describes the design and the successful integration of the optical block of the SODART telescopes to be flown on the Spectrum Roentgen Gamma satellite. The integration involves both the integration of the two high throughput x-ray telescop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41840176b1196d6ba631a20c334cd03c
https://doi.org/10.1117/12.331290
https://doi.org/10.1117/12.331290
Publikováno v:
Grazing Incidence and Multilayer X-Ray Optical Systems.
The SODART x-ray telescope includes an objective crystal spectrometer (OXS) providing an energy resolving power around 1000 by Bragg reflection upon crystals. A program to calculate the SODART-OXS response function is described. It includes the simul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00260a0076144f26d6d161940fedc474
https://doi.org/10.1117/12.278860
https://doi.org/10.1117/12.278860
Autor:
Niels J. Westergaard, Konstantin N. Borozdin, H.-J. Wiebicke, Ingolf Halm, I. L. Rasmussen, Ulrich Geppert, Herbert W. Schnopper, Finn Erland Christensen
Publikováno v:
SPIE Proceedings.
The flight version of the Objective Crystal Spectrometer (OXS) on the SPECTRUM-X- GAMMA satellite is presented. The spectrometer is a panel that is placed in front of one of the SODART telescopes. It is composed of an array of the three Bragg crystal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deccd96f51b48e313ca22d3afc6dfdde
https://doi.org/10.1117/12.193160
https://doi.org/10.1117/12.193160
Autor:
Finn Erland Christensen, Ulrich Geppert, H.-J. Wiebicke, I. L. Rasmussen, Herbert W. Schnopper, Konstantin N. Borozdin, Ingolf Halm
Publikováno v:
SPIE Proceedings.
The Objective Crystal Spectrometer (OXS) on the SPECTRUM-X-GAMMA satellite will carry these types of natural crystals LiF(220), Ge(111) and RAP(001). They will be used to study, among others, the H- and the He-like emission from the cosmically import
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2aaf8e5701cfdc7f1c051b055efc6584
https://doi.org/10.1117/12.130680
https://doi.org/10.1117/12.130680
Publikováno v:
Physica Scripta. :31-32
The SODART X-ray telescope includes an Objective Crystal Spectrometer (OCS) providing an energy resolving power around 1000 by Bragg reflection upon crystals. The SODART-OCS response function is used within the XSPEC package for the calculation of co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::283c8872e326ac05709416bb2ba33538
https://doi.org/10.1088/0031-8949/1998/t77/007
https://doi.org/10.1088/0031-8949/1998/t77/007
Publikováno v:
Physica Scripta. :29-30
OCS, the Bragg spectrometer for the SODART X-ray telescope onboard the SPECTRUM–RONTGEN–GAMMA (SRG) satellite has been completed. Preliminary results of his performance are presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::256932822b375ab7034f72df709a0762
https://doi.org/10.1088/0031-8949/1998/t77/006
https://doi.org/10.1088/0031-8949/1998/t77/006
Autor:
H.-J. Wiebicke, Ulrich Geppert
Publikováno v:
International Astronomical Union Colloquium. 160:435-436
We present a scenario of magnetic field (MF) evolution of newly-born neutron stars (NSs). Numerical calculations show that in the hot phase of young NSs the MF can be amplified by thermoelectric effects, starting from a moderately strong seed-field.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0e9ec3b71f481d7676f53cb37d3790c
https://doi.org/10.1017/s0252921100042056
https://doi.org/10.1017/s0252921100042056