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Title: Search for VHE γ-ray emission from the globular cluster M13 with the Magic telescope
Author: MAGIC Collaboration
Paredes i Poy, Josep Maria
Ribó Gomis, Marc
Bosch i Ramon, Valentí
Keywords: Raigs gamma
Observacions astronòmiques
Cúmuls de galàxies
Gamma rays
Astronomical observations
Clusters of galaxies
Issue Date: 10-Aug-2009
Publisher: Institute of Physics (IOP)
Abstract: Based on MAGIC observations from 2007 June to July, we have obtained an integral upper limit to the VHE energy emission of the globular cluster M13 of F(E>200 GeV) < 5.1 × 10-12 cm-2 s-1, and differential upper limits for E > 140 GeV. Those limits allow us to constrain the population of millisecond pulsars within M13 and to test models for acceleration of leptons inside their magnetospheres and surrounding. We conclude that in M13 either millisecond pulsars are fewer than expected or they accelerate leptons less efficiently than predicted.
Note: Reproducció del document publicat a:
It is part of: Astrophysical Journal, 2009, vol. 702, num. 1, p. 266-269
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ISSN: 0004-637X
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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