Zobrazeno 1 - 8
of 8
pro vyhledávání: '"P. S. Coppi"'
Publikováno v:
Astropart.Phys.11:35-39,1999
With the arrival of powerful, ground-based gamma-ray detectors, we can now begin to seriously probe, via simultaneous X-ray/TeV observations, the origin of the gamma-ray emission in the blazars Mrk 421 and 501. If the synchrotron-Compton emission mod
Externí odkaz:
http://arxiv.org/abs/astro-ph/9903160
Autor:
H. Krawczynski, R. Sambruna, A. Kohnle, P. S. Coppi, F. Aharonian, A. Akhperjanian, J. Barrio, K. Bernlohr, H. Borst, H. Bojahr, O. Bolz, J. Contreras, J. Cortina, S. Denninghoff, V. Fonseca, J. Gonzalez, N. Gotting, G. Heinzelmann, G. Hermann, A. Heusler, W. Hofmann, D. Horns, A. Ibarra, I. Jung, R. Kankanyan, M. Kestel, J. Kettler, A. Konopelko, H. Kornmeyer, D. Kranich, H. Lampeitl, E. Lorenz, F. Lucarelli, N. Magnussen, O. Mang, H. Meyer, R. Mirzoyan, A. Moralejo, L. Padilla, M. Panter, R. Plaga, A. Plyasheshnikov, G. Puhlhofer, G. Rauterberg, A. Rohring, W. Rhode, G. Rowell, V. Sahakian, M. Samorski, M. Schilling, F. Schroder, M. Siems, W. Stamm, M. Tluczykont, H. J. Volk, C. A. Wiedner, W. Wittek
Publikováno v:
The Astrophysical Journal. 559:187-195
In this paper we present the results of simultaneous observations of the TeV blazar Markarian 421 (Mrk 421) at X-ray and TeV Gamma-ray energies with the Rossi X-Ray Timing Explorer (RXTE) and the stereoscopic Cherenkov Telescope system of the HEGRA (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5350dcd260a8c95d88a701e2937d6af7
https://doi.org/10.1086/322364
https://doi.org/10.1086/322364
Autor:
P. S. Coppi, Giuseppe Bertin, Franca De Luca, Giuseppe Lodato, Roberto Pozzoli, Massimiliano Romé
Publikováno v:
AIP Conference Proceedings.
The last ten years have seen significant progress have seen major improvements in our ability to observe and characterize the X‐ray emission from black hole systems. In particular, the arrival of a new generation of X‐ray satellites that combine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6ca636bd9846550d884db748c527c72
https://doi.org/10.1063/1.3460143
https://doi.org/10.1063/1.3460143
Publikováno v:
AIP Conference Proceedings.
The stereoscopic Cherenkov telescope system of HEGRA was used in 1997 and in 1998 to observe the BL Lac object Mkn 501 on a regular basis. After a period of exceptional activity in 1997 of continuous flares and a mean flux roughly one order of magnit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40dc1aa6b6e242d5b7f8660c923c6730
https://doi.org/10.1063/1.1303226
https://doi.org/10.1063/1.1303226
Publikováno v:
AIP Conference Proceedings.
In wind models of γ‐ray bursts, it has been assumed that soft x‐ray photons are scattered only once by relativistic electrons moving away from the star; this assumes that the scattering optical depth is small. Using the observational data from t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d249a8f2f661cdd6338bb8b7c603977f
https://doi.org/10.1063/1.42787
https://doi.org/10.1063/1.42787
Autor:
P. S. Coppi, D. Q. Lamb
Publikováno v:
AIP Conference Proceedings.
In wind models of γ‐ray bursts, electron‐position pairs stream away from the neutron star surface, upscattering soft x‐ray photons to hard x‐ and γ‐ray energies. For sufficiently high source luminosities, the density of pairs required is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbc16d3bc00af10b0c098ca60e1d792a
https://doi.org/10.1063/1.42790
https://doi.org/10.1063/1.42790
Autor:
P S Coppi, R D Blandford
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 245:453-453
Summary Reaction rates are given for two-body processes in an isotropic-pair plasma. The rates are accurate over mildly relativistic energies and are given as functions of the incident particle energies rather than integrated over a thermal distribut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3219d8e32ebe443d771087343419e4aa
https://doi.org/10.1093/mnras/245.3.453
https://doi.org/10.1093/mnras/245.3.453
Publikováno v:
Journal of Plasma Physics. 42:299-319
Recent numerical investigations have focused attention once more on the role of intermediate shocks in MHD. Four types of intermediate shock are identified using a graphical representation of the MHD Rankine-Hugoniot conditions. This same representat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f69abb240f6a4a3ee7f82d87da23228
https://doi.org/10.1017/s0022377800014379
https://doi.org/10.1017/s0022377800014379