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Akademický článek
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Autor:
Bandstra, M. S., Bellm, E. C., Boggs, S. E., Perez-Becker, D., Zoglauer, A., Chang, H. -K., Chiu, J. -L., Liang, J. -S., Chang, Y. -H., Liu, Z. -K., Hung, W. -C., Huang, M. -H. A., Chiang, S. J., Run, R. -S., Lin, C. -H., Amman, M., Luke, P. N., Jean, P., von Ballmoos, P., Wunderer, C. B.
The Nuclear Compton Telescope (NCT) is a balloon-borne Compton telescope designed for the study of astrophysical sources in the soft gamma-ray regime (200 keV--20 MeV). NCT's ten high-purity germanium crossed-strip detectors measure the deposited ene
Externí odkaz:
http://arxiv.org/abs/1106.0323
Autor:
Boggs, S., Wunderer, C., von Ballmoos, P., Takahashi, T., Gehrels, N., Tueller, J., Baring, M., Beacom, J., Diehl, R., Greiner, J., Grove, E., Hartmann, D., Hernanz, M., Jean, P., Johnson, N., Kanbach, G., Kippen, M., Knödlseder, J., Leising, M., Madejski, G., McConnell, M., Milne, P., Motohide, K., Nakazawa, K., Oberlack, U., Phlips, B., Ryan, J., Skinner, G., Starrfield, S., Tajima, H., Wulf, E., Zoglauer, A., Zych, A.
Gamma-ray astronomy presents an extraordinary scientific potential for the study of the most powerful sources and the most violent events in the Universe. In order to take full advantage of this potential, the next generation of instrumentation for t
Externí odkaz:
http://arxiv.org/abs/1006.2102
Autor:
Wang, W., Harris, M. J., Diehl, R., Halloin, H., Cordier, B., Strong, A. W., Kretschmer, K., Knoedlseder, J., Jean, P., Lichti, G. G., Roques, J. P., Schanne, S., von Kienlin, A., Weidenspointner, G., Wunderer, C.
Publikováno v:
Astron.Astrophys.469:1005,2007
Gamma-ray line emission from radioactive decay of 60Fe provides constraints on nucleosynthesis in massive stars and supernovae. The spectrometer SPI on board INTEGRAL has accumulated nearly three years of data on gamma-ray emission from the Galactic
Externí odkaz:
http://arxiv.org/abs/0704.3895
Autor:
Weidenspointner, G., Sturner, S. J., Novikova, E. I., Harris, M. J., Zoglauer, A., Wunderer, C. B., Kippen, R. M., Bloser, P., Zeitnitz, C.
We announce the forthcoming public release of Version 1.1 of MGGPOD, a user-friendly suite of Monte Carlo codes built around the widely used GEANT (Version 3.21) package. MGGPOD is capable of simulating ab initio the physical processes relevant for t
Externí odkaz:
http://arxiv.org/abs/astro-ph/0702623
Publikováno v:
Exper.Astron.20:375-386,2005
MAX is a proposed Laue lens gamma-ray telescope taking advantage of Bragg diffraction in crystals to concentrate incident photons onto a distant detector. The Laue lens and the detector are carried by two separate satellites flying in formation. Sign
Externí odkaz:
http://arxiv.org/abs/astro-ph/0603152
Autor:
Diehl, R., Halloin, H., Kretschmer, K., Strong, A. W., Wang, W., Jean, P., Lichti, G. G., Knoedlseder, J., Roques, J. -P., Schanne, S., Schoenfelder, V., von Kienlin, A., Weidenspointner, G., Winkler, C., Wunderer, C.
Publikováno v:
Astron.Astrophys. 449 (2006) 1025-1031
We performed a spectroscopic study of the 1809 keV gamma-ray line from 26Al decay in the Galaxy using the SPI imaging spectrometer with its high-resolution Ge detector camera on the INTEGRAL observatory. We analyzed observations of the first two miss
Externí odkaz:
http://arxiv.org/abs/astro-ph/0512334
Autor:
Lonjou, V., Knodlseder, J., Roques, J. P., Skinner, G. K., von Ballmoos, P., Jean, P., Paul, P., Weidenspointner, G., Wunderer, C., Schanne, S.
Publikováno v:
Proc. 5th INTEGRAL Workshop, ESA SP-552, 713, 2004
The status of the SPI energy calibration after the first year of INTEGRAL operations is reported. We have studied the gain variations and we have demonstrated that the most important parameter is the germanium detector temperature. This study permits
Externí odkaz:
http://arxiv.org/abs/astro-ph/0504325
We have developed MGGPOD, a user-friendly suite of Monte Carlo codes built around the widely used GEANT (Version 3.21) package. The MGGPOD Monte Carlo suite and documentation are publicly available for download. MGGPOD is an ideal tool for supporting
Externí odkaz:
http://arxiv.org/abs/astro-ph/0406159
Autor:
Diehl, R., Kretschmer, K., Lichti, G., Schönfelder, V., Strong, A. W., von Kienlin, A., Knödlseder, J., Jean, P., Lonjou, V., Weidenspointner, G., Roques, J. -P., Vedrenne, G., Schanne, S., Mowlavi, N., Winkler, C., Wunderer, C.
Al(26) radioactivity traces recent nucleosynthesis throughout the Galaxy, and is known to be produced in massive stars and novae. The map from its decay gamma-ray line suggests massive stars to dominate, but high-resolution line spectroscopy is expec
Externí odkaz:
http://arxiv.org/abs/astro-ph/0405192