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Poster communications

Discovery of TeV Gamma-Ray Emission in the W28 Region from HESS Observations, and Multiwavelength Comparisons

Abstract : H.E.S.S. observations of the old-age (more than 10000 yrs; about 0.5 deg diameter) composite SNR W28 reveal TeV emission situated at its northeastern and southern boundaries. The northeastern TeV source is in an area where W28 is interacting with a dense molecular cloud, containing OH masers, local radio and X-ray peaks. The southern TeV sources are found in a region occupied by several HII regions, including the ultra- compact HII region W28-A2. Our analysis of NANTEN CO data also reveals a dense molecular cloud enveloping this southern region. Further details concerning H.E.S.S., NANTEN, and other multiwavelength results will be presented at the conference.
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http://hal.in2p3.fr/in2p3-00170215
Contributor : Simone Lantz <>
Submitted on : Thursday, September 6, 2007 - 6:13:13 PM
Last modification on : Wednesday, September 23, 2020 - 4:36:04 AM

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  • HAL Id : in2p3-00170215, version 1

Citation

G. Rowell, E. Brion, O. Reimer, F. Aharonian, P. Goret, et al.. Discovery of TeV Gamma-Ray Emission in the W28 Region from HESS Observations, and Multiwavelength Comparisons. Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia. 30th International Cosmic Ray Conference - ICRC'07, Jul 2007, Merida, Mexico. 2, pp.563-566, 2007. ⟨in2p3-00170215⟩

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