Search Results - "SCHÖNFELDER, V"

INTEGRAL SPI Limits on Electron-Positron Annihilation Radiation from the Galactic Plane by Teegarden, B. J, Watanabe, K, Jean, P, Knödlseder, J, Lonjou, V, Roques, J. P, Skinner, G. K, von Ballmoos, P, Weidenspointner, G, Bazzano, A, Butt, Y. M, Decourchelle, A, Fabian, A. C, Goldwurm, A, Güdel, M, Hannikainen, D. C, Hartmann, D. H, Hornstrup, A, Lewin, W. H. G, Makishima, K, Malzac, A, Miller, J, Parmar, A. N, Reynolds, S. P, Rothschild, R. E, Schönfelder, V, Tomsick, J. A, Vink, J

“…The center of our Galaxy is a known strong source of electron-positron 511 keV annihilation radiation. Thus far, however, there have been no reliable…”
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State Transition and Flaring Activity of IGR J17464–3213/H1743–322 with INTEGRAL SPI by Joinet, A, Jourdain, E, Malzac, J, Roques, J. P, Schönfelder, V, Ubertini, P, Capitanio, F

“…IGR J17464-3213, already known as the HEAO 1 transient source H1743-322, has been detected during a state transition by INTEGRAL SPI. We describe the spectral…”
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SPI cosmic radioactivity measurements in perspective by Schönfelder, V

“…The ESA-Mission INTEGRAL (International Gamma-Ray Astrophysics Laboratory) is the next step in low-energy gamma-ray astronomy (up to 10 MeV) and will be…”
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The MEGA project by Kanbach, G, Andritschke, R, Schopper, F, Schönfelder, V, Zoglauer, A, Bloser, P.F, Hunter, S.D, Ryan, J.A, McConnell, M, Reglero, V, DiCocco, G, Knödlseder, J

“…We describe the development of a new telescope for Medium Energy Gamma-Ray Astronomy (MEGA) for the energy band 0.4–50 MeV. As a successor to COMPTEL and EGRET…”
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The Soft Gamma-Ray Spectral Variability of Cygnus X-1 by McConnell, M. L, Zdziarski, A. A, Bennett, K, Bloemen, H, Collmar, W, Hermsen, W, Kuiper, L, Paciesas, W, Phlips, B. F, Poutanen, J, Ryan, J. M, Schönfelder, V, Steinle, H, Strong, A. W

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The Cosmic-Ray Luminosity of the Galaxy by Dogiel, V. A, Schönfelder, V, Strong, A. W

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The MEGA advanced Compton telescope project by Bloser, P.F, Andritschke, R, Kanbach, G, Schönfelder, V, Schopper, F, Zoglauer, A

“…The goal of the Medium Energy Gamma-ray Astronomy (MEGA) telescope is to improve sensitivity at medium gamma-ray energies (0.4–50 MeV) by at least an order of…”
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The Revised COMPTEL Orion Results by Bloemen, H, Morris, D, Knödlseder, J, Bennett, K, Diehl, R, Hermsen, W, Lichti, G, van der Meulen, R. D, Oberlack, U, Ryan, J, Schönfelder, V, Strong, A. W, de Vries, C, Winkler, C

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Compact sources as the origin of the soft γ-ray emission of the Milky Way by Lebrun, F, Terrier, R, Bazzano, A, Bélanger, G, Bird, A, Bouchet, L, Dean, A, Del Santo, M, Goldwurm, A, Lund, N, Morand, H, Parmar, A, Paul, J, Roques, J.-P, Schönfelder, V, Strong, A. W, Ubertini, P, Walter, R, Winkler, C

“…The Milky Way is known to be an abundant source of γ-ray photons, now determined to be mainly diffuse in nature and resulting from interstellar processes. In…”
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A survey of COMPTEL results by Schoenfelder, V

“…During the first three years of operation, the imaging Compton telescope COMPTEL on board of the Compton Gamma-Ray Observatory has observed MeV-gamma radiation…”
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Highlight results from the Compton gamma-ray observatory by SCHÖNFELDER, V

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New COMPTEL Results on MeV Gamma Rays from the Orion/Monoceros Region by Bloemen, H, Bykov, A. M, Bozhokin, S. V, Diehl, R, Hermsen, W, van der Meulen, R. D, Oberlack, U, Ryan, J, Schönfelder, V, Strong, A. W, Winkler, C

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Emission from 44Ti associated with a previously unknown Galactic supernova by LYUDIN, A. F, SCHÖNFELDER, V, BENNETT, K, BLOEMEN, H, DIEHL, R, HERMSEN, W, LICHTI, G. G, VAN DER MEULEN, R. D, RYAN, J, WINKLER, C

“…Nearly 400 years have passed since a supernova was last observed directly in the Milky Way (by Kepler, in 1604). Numerous Galactic supernovae are expected to…”
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A High-Sensitivity Measurement of the MeV Gamma-Ray Spectrum of Cygnus X-1 by McConnell, M. L, Ryan, J. M, Collmar, W, Schönfelder, V, Steinle, H, Strong, A. W, Bloemen, H, Hermsen, W, Kuiper, L, Bennett, K, Phlips, B. F, Ling, J. C

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The origin of X-ray flux from the galactic ridge by Dogiel, V.A., Masai, K., Inoue, H., Schönfelder, V., Strong, A.W.

“…We analyze the origin of the Ridge X‐ray emission, which remains unknown. We show that the high energy output necessary to produce the X‐ray flux, the…”
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Influence of radiation damage on BGO scintillation properties by Georgii, R., Meißl, R., Hajdas, W., Henschel, H., Gräf, H.-D., Lichti, G.G., Neumann-Cosel, P.von, Richter, A., Schönfelder, V.

“…Aboard INTEGRAL, the next medium-size γ-ray mission of the European Space Agency (ESA), a high-resolution Ge-spectrometer array with a BGO anticoincidence…”
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Gamma-ray astronomy and the origin of cosmic-rays by Dogiel, V. A., Schönfelder, V.

“…Measurements supplied by the Compton Gamma-Ray Observatory (CGRO) and other gamma-ray telescopes allow the analysis of a variety of processes in galactic and…”
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Centaurus A: Multiwavelength observations of the nearest active galaxy from radio to gamma-rays by Steinle, H, Bonnell, J, Kinzer, R.L, Tzioumis, A, Bignall, H, Schönfelder, V, Bennett, K, Hermsen, W, Ryan, J

“…Centaurus A (Cen A, NGC 5128) is the nearest active galaxy and, notably, the viewing angle with respect to the jet axis is very large (> 70°). A first…”
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Origin of MeV-excess in the energy spectrum of diffuse cosmic γ rays by Schoenfelder, V

“…Diffuse cosmic gamma radiation is either interpreted as the result of interaction in intergalactic space or as the result of the superposition of many…”
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The local neutron flux at low earth-orbiting altitudes by Weidenspointner, G., Bennett, K., van Dijk, R., Kappadath, S.C., Lockwood, J., Morris, D., Schönfelder, V., Varendorff, M.

“…The COMPTEL instrument onboard the Compton Gamma Ray Observatory (CGRO) has been used to measure the variation of the atmospheric neutron flux below 5 MeV as a…”
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