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Detection of t[clc]e[/clc]v gamma rays from the bl lacertae object 1es 1959+650 with the whipple 10 meter telescope
- Publication Year :
- 2003
- Publisher :
- IOP Publishing, 2003.
-
Abstract
- We present the first strong detection of very high energy gamma-rays from the close (z=0.048) X-ray selected BL Lacertae object 1ES1959+650. Observations were made with the Whipple 10m telescope on Mt. Hopkins, Arizona, using the atmospheric Cherenkov imaging technique. The flux between May and July 2002 was highly variable, with a mean of 0.64 +/- 0.03 times the steady flux from the Crab Nebula and reaching a maximum of five Crab, with variability on timescales as short as seven hours.
- Subjects :
- Physics
High energy
mkn-501
active galaxy markarian-421
blazars
Gamma ray
Flux
Astronomy and Astrophysics
Astrophysics
system
energy-spectrum
law.invention
Telescope
radiation
Crab Nebula
x-ray
Space and Planetary Science
law
bl lacertae objects : individual (1es 1959+650)
photons
gamma rays : observations
Imaging technique
strong flares
Cherenkov radiation
BL Lac object
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....e6e14656c496fdc880b3d91b5ae4d663