Chinese physics C, 2008-11, Vol.32 (11), p.868-872
2008
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Details
- Autor(en) / Beteiligte
- Titel
- An updated search of steady TeV γ-ray point sources in northern hemisphere using the Tibet air shower array
- Ist Teil von
- Chinese physics C, 2008-11, Vol.32 (11), p.868-872
- Ort / Verlag
- IOP Publishing
- Erscheinungsjahr
- 2008
- Quelle
- Alma/SFX Local Collection
- Beschreibungen/Notizen
- Using the data taken from Tibet II High Density （HD） Array （1997 February-1999 September） and Tibet-III array （1999 November--2005 November）, our previous northern sky survey for TeV γ-ray point sources has now been updated by a factor of 2.8 improved statistics. From 0.0° to 60.0° in declination （Dec） range, no new TeV T-ray point sources with sufficiently high significance were identified while the well-known Crab Nebula and Mrk421 remain to be the brightest TeV γ-ray sources within the field of view of the Tibet air shower array. Based on the currently available data and at the 90% confidence level （C.L.）, the flux upper limits for different power law index assumption are re-derived, which are approximately improved by 1.7 times as compared with our previous reported limits.