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TeV gamma-ray Observations of the Blazar Markarian 421 from January to April 2004 with TACTIC Imaging Element
Bhabha Atomic Research Centre, India.
Bhabha Atomic Research Centre, India.
Bhabha Atomic Research Centre, India.
Bhabha Atomic Research Centre, India.
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2005 (English)In: 29th International Cosmic Ray Conference Pune (2005), 2005, Vol. 4, p. 355-358Conference paper, Published paper (Refereed)
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Abstract [en]

We have observed the blazar Markarian 421 (z=0.031 ) with the TACTIC gamma- ray telescope having thresholdenergy of 1.5TeV at Mt. Abu Rajasthan India from January to April 2004. Observations were made intracking mode for a total of 84(on) /16 (off-source) hours with its imaging element equipped with a 349- pixelPMTs camera. During this period, we nd an evidence of a TeV gamma-ray signal with a statistical signi-cance of 6.8. The differential energy spectrum derived in the energy range 2 - 9 TeV is well represented bya simple power law, with a differential spectral index of 2.800.20.

Place, publisher, year, edition, pages
2005. Vol. 4, p. 355-358
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Natural Science, Physics
Identifiers
URN: urn:nbn:se:lnu:diva-51581OAI: oai:DiVA.org:lnu-51581DiVA, id: diva2:915346
Conference
International Cosmic Ray Conference, Pune, 2005
Available from: 2016-03-29 Created: 2016-03-29 Last updated: 2016-05-02Bibliographically approved

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Thoudam, Satyendra

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  • apa
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