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Magic observations of the unidentified gamma-ray source TEV J2032+4130

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Antoranz Canales, Pedro and Barrio Uña, Juan Abel and Contreras González, José Luis and Fonseca González, Mª Victoria and López Moya, Marcos and Miranda Pantoja, José Miguel and Nieto, Daniel (2008) Magic observations of the unidentified gamma-ray source TEV J2032+4130. Astrophysical journal letters, 675 (1). L25-L28. ISSN 2041-8205

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Official URL: http://dx.doi.org/10.1086/529520




Abstract

We observed the first known very high energy (VHE) gamma-ray-emitting unidentified source, TeV J2032 + 4130, for 94 hr with the MAGIC telescope. The source was detected with a significance of 5.6 sigma. The flux, position, and angular extension are compatible with the previous ones measured by the HEGRA telescope system 5 years ago. The integral flux amounts to (4.5 +/- 0.3(stat)+/- 0.35(sys)) x 10 (- 13) photons cm(-2) s(-1) above 1 TeV. The source energy spectrum, obtained with the lowest energy threshold to date, is compatible with a single power law with a hard photon index of Gamma= - 2.0 +/- 0.3(stat)+/- 0.2(sys).
Miranda Pantka


Item Type:Article
Additional Information:

© The American Astronomical Society. We thank the IAC for the excellent working conditions at the ORM. The support of the German BMBF and MPG, the Italian INFN, the Spanish CICYT, the ETH Research Grant TH 34/04 3, and the Polish MNiI Grant 1P03D01028 is gratefully acknowledged.

Uncontrolled Keywords:Source TEV-J2032+4130, Cosmic-Rays, Cygnus OB2, Follow-up, Telescope, Emission, Radio, Radiation, Region, Hegra.
Subjects:Sciences > Physics > Electronics
Sciences > Physics > Electricity
Sciences > Physics > Nuclear physics
ID Code:23589
Deposited On:20 Nov 2013 13:04
Last Modified:10 Dec 2018 14:58

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