Artículo
Buckley, J.H.; Akerlof, C.W.; Carter-Lewis, D.A.; Catanese, M.; Cawley, M.F.; Connaughton, V.; Fegan, D.J.; Finley, J.P.; Gaidos, J.A.; Hillas, A.M.; Krennrich, F.; Lamb, R.C.; Lessard, R.W.; McEnery, J.E.; Mohanty, G.; Quinn, J.; Rodgers, A.J.; Rose, H.J. (...) Zweerink, J. "Constraints on cosmic-ray origin from TeV gamma-ray observations of supernova remnants" (1998) Astronomy and Astrophysics. 329(2):639-658
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Abstract:
If supernova remnants (SNRs) are the site of cosmicray acceleration, the associated nuclear interactions should result in an observable flux of γ-rays for the nearest SNRs. Measurements of the TeV γ-ray flux from six nearby, radio-bright SNRs have been made with the Whipple Observatory imaging air Čerenkov telescope over the period September 1993 to June 1996. No significant emission has been detected and upper limits on the >300 GeV flux are reported. Three of these SNRs (IC443, γ-Cygni and W44) are spatially coincident with low-latitude otherwise unidentified sources detected with the Energetic Gamma-Ray Experiment Telescope (EGRET). If the EGRET γ-ray fluxes result from cosmic-ray interactions then the EGRET and Whipple data are found to be collectively inconsistent with a cosmic-ray source spectrum flatter than ∼ E -2.4 . The Whipple upper limits for IC443 and γ-Cygni are also inconsistent with a priori predictions if these remnants are indeed expanding into regions where the average density of the interstellar medium is enhanced by the presence of molecular clouds. These data weaken the case for the simplest models of shock acceleration and energy dependent propagation of cosmic rays.
Registro:
| Documento: | Artículo |
| Título: | Constraints on cosmic-ray origin from TeV gamma-ray observations of supernova remnants |
| Autor: | Buckley, J.H.; Akerlof, C.W.; Carter-Lewis, D.A.; Catanese, M.; Cawley, M.F.; Connaughton, V.; Fegan, D.J.; Finley, J.P.; Gaidos, J.A.; Hillas, A.M.; Krennrich, F.; Lamb, R.C.; Lessard, R.W.; McEnery, J.E.; Mohanty, G.; Quinn, J.; Rodgers, A.J.; Rose, H.J.; Rovero, A.C.; Schubnell, M.S.; Sembroski, G.; Srinivasan, R.; Weekes, T.C.; Zweerink, J. |
| Filiación: | Department of Physics, Washington University, St. Louis, MD 63130, United States Randall Laboratory of Physics, University of Michigan, Ann Arbor, MI 48109-1120, United States Department of Physics and Astronomy, Iowa State University, Ames, IA 50011-3160, United States Physics Department, St. Patrick's College, Maynooth, Ireland NASA Marshall Space Flight Center, Huntsville, AL 35812, United States Physics Department, University College, Dublin 4, Ireland Department of Physics, Purdue University, West Lafayette, IN 47907, United States Physics Department, University of Leeds, Leeds, LS2 9JT, Yorkshire, United Kingdom Space Radiation Laboratory, California Institute of Technology, Pasadena, CA 91125, United States Whipple Observatory, Harvard-Smithsonian CfA, P.O. Box 97, Amado, AZ 85645-0097, United States Insituto Astronomia y Fisca Espacio, CC 67, Suc. 28, (1428) Buenos Aires, Argentina |
| Palabras clave: | Cosmic rays; Gamma-rays: observations; ISM: IC 443; γ Cyg SNR; W 44; SNRS |
| Año: | 1998 |
| Volumen: | 329 |
| Número: | 2 |
| Página de inicio: | 639 |
| Página de fin: | 658 |
| Título revista: | Astronomy and Astrophysics |
| Título revista abreviado: | Astron. Astrophys. |
| ISSN: | 00046361 |
| CODEN: | AAEJA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v329_n2_p639_Buckley |
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Citas:
---------- APA ----------
Buckley, J.H., Akerlof, C.W., Carter-Lewis, D.A., Catanese, M., Cawley, M.F., Connaughton, V., Fegan, D.J.,..., Zweerink, J. (1998) . Constraints on cosmic-ray origin from TeV gamma-ray observations of supernova remnants. Astronomy and Astrophysics, 329(2), 639-658.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v329_n2_p639_Buckley [ ]
---------- CHICAGO ----------
Buckley, J.H., Akerlof, C.W., Carter-Lewis, D.A., Catanese, M., Cawley, M.F., Connaughton, V., et al. "Constraints on cosmic-ray origin from TeV gamma-ray observations of supernova remnants" . Astronomy and Astrophysics 329, no. 2 (1998) : 639-658.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v329_n2_p639_Buckley [ ]
---------- MLA ----------
Buckley, J.H., Akerlof, C.W., Carter-Lewis, D.A., Catanese, M., Cawley, M.F., Connaughton, V., et al. "Constraints on cosmic-ray origin from TeV gamma-ray observations of supernova remnants" . Astronomy and Astrophysics, vol. 329, no. 2, 1998, pp. 639-658.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v329_n2_p639_Buckley [ ]
---------- VANCOUVER ----------
Buckley, J.H., Akerlof, C.W., Carter-Lewis, D.A., Catanese, M., Cawley, M.F., Connaughton, V., et al. Constraints on cosmic-ray origin from TeV gamma-ray observations of supernova remnants. Astron. Astrophys. 1998;329(2):639-658.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v329_n2_p639_Buckley [ ]
