منابع مشابه
VHE observations of unidentified EGRET sources
Observations of unidentified EGRET sources were made with the Whipple 10m imaging atmospheric Čerenkov telescope between Fall 1999 and Spring 2001. During this period, a high resolution 490 pixel camera with 4 field of view was present on the telescope. Characterization of the off-axis response of this instrument was done using observations of the Crab Nebula. No significant emission was detect...
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Ulloa's complete print of the glories and fogbows on Mt. Pambamarca in Peru (now Ecuador) is presented. It shows two other phenomena, an erupting volcano and an as yet unidentified optical effect. The glories and fogbow are analyzed to obtain the drop size of the fog, and the unidentified features are discussed.
متن کاملMagic Observations of the Unidentified Γ-ray Source Tev
We observed the first known very high energy (VHE) γ-ray emitting unidentified source, TeV J2032+4130, for 94 hours with the MAGIC telescope. The source was detected with a significance of 5.6σ. The flux, position, and angular extension are compatible with the previous ones measured by the HEGRA telescope system five years ago. The integral flux amounts to (4.5±0.3stat±0.35sys)×10 −13 ph cm s a...
متن کاملX-ray observations of unidentified H.E.S.S. γ-ray sources
Abstract. In a survey of the inner part of the Galaxy, performed with the H.E.S.S. Instrument (High energy stereoscopic system) in 2004 and 2005, a large number of new unidentified very high energy (VHE) γ-ray sources above an energy of 100 GeV was discovered. Often the γ-ray spectra in these sources reach energies of up to ∼ 10 TeV. These are the highest energy particles ever attributed to sin...
متن کاملDemystifying an unidentified EGRET source by VHE gamma-ray observations
In a novel approach in observational highenergy gamma-ray astronomy, observations carried out by imaging atmospheric Cherenkov telescopes provide necessary templates to pinpoint the nature of intriguing, yet unidentified EGRET gamma-ray sources. Using GeV-photons detected by CGRO EGRET and taking advantage of high spatial resolution images from H.E.S.S. observations, we were able to shed new li...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1987
ISSN: 0074-1809
DOI: 10.1017/s0074180900154051