The Milagro Gamma-Ray Observatory
نویسنده
چکیده
Milagro is a unique water Cherenkov detector designed for very high energy (VHE) gamma-ray astronomy. The water Cherenkov technique gives Milagro an unprecedented sensitivity and energy threshold. A deep detector layer is used to identify penetrating particles (muons and hadrons) present in hadron induced showers allowing for the rejection of backgrounds which substantially increases sensitivity. This paper describes the Milagro detector, its mode of operation and sensitivity to gamma-ray sources. Recent results of Milagro are presented including the recent detection of diffuses gamma-ray emission from the Galactic plane and the Cygnus region, search for VHE radiation from gamma-ray bursts and a survey of the northern sky for gamma-ray sources.
منابع مشابه
Results from the Milagro Gamma-Ray Observatory
The Milagro Gamma-Ray Observatory, located at an altitude of 2630m in the mountains of northern New Mexico, is a water-Cherenkov extensive air shower detector consisting of a 4800m covered pond instrumented with 723 PMTs. For improved sensitivity, 175 instrumented water tanks have recently been added surrounding the pond, covering an area of 40, 000m. Milagro continuously observes the entire ov...
متن کاملSurveying The TeV Sky With Milagro
A wide field of view, high duty factor TeV gamma-ray observatory is essential for studying TeV astrophysical sources, because most of these sources are either highly variable or are extended. Milagro is such a TeV detector and has performed the deepest survey of the Northern hemisphere sky. In addition to detecting the Crab Nebula and Mrk 421, which are known TeV sources, Milagro has made the f...
متن کاملSearch for Very High Energy Emission from Satellite-triggered GRBs with the Milagro Observatory
The Milagro gamma-ray observatory employs a water Cherenkov detector to observe extensive air showers produced by high energy particles interacting in the Earth’s atmosphere. Milagro has a wide field of view (2 sr) and high duty cycle ( 90%) making it an ideal all-sky monitor of the northern hemisphere in the 100 GeV to 100 TeV energy range. More than 45 satellite-triggered gamma-ray bursts (GR...
متن کاملLA - UR 99 - 2609 Milagro Collaboration Contributions to XXVI th ICRC Salt Lake City , UT August , 1999
The Milagro Gamma Ray Observatory is the world’s first large-area water Cherenkov detector capable of continuously monitoring the sky at TeV energies. Located in the mountains of northern New Mexico, Milagro will perform an all sky survey of the Northern Hemisphere at energies between 250 GeV and 50 TeV. With a high duty-cycle ( 100%), large detector area ( 5000m), and wide field-of-view ( 1 sr...
متن کاملSurveying the TeV Sky with Milagro
A wide field of view, high duty factor, TeV gamma-ray observatory is essential for studying TeV astrophysical sources, because most of these sources are either highly variable or are extended. Milagro is such a TeV detector and has performed the deepest survey of the Northern Hemisphere sky. In addition to detecting the known TeV sources of the Crab Nebula and Markarian 421, Milagro has made th...
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