Pulsed Emission of Very High Energy Gamma-Rays From Crab Pulsar

Xu Chunxian; He Huilin; He Huihai; Chen Yongzhong; Li Huidong; Jiang Yinlin

Chinese Physics C> 1998, Vol. 22> Issue(1) : 4-12

Pulsed Emission of Very High Energy Gamma-Rays From Crab Pulsar

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

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Abstract：
We present here the results of observation of- very high energy(VHE) gamma-ray emission from Crab Pulsar with Beijing Atmospheric Cerenkov Telescopes, named ACT2 and ACT3, for the duration of the fall 1995-spring 1996 season. The data are based on 168 hours (ACT2) and 125 hours (ACT3) of exposure over the period of observation in tracking model. After conversion the event time to the solar barycenter, the data have been searched for evidence of pulsed emission at 33ms period of Crab Pulsar, We found no steady emission of VHE Gamma-ray with 33ms period at the scale of month or night. But there are two evidences of sporadic emission over an hour duration with the same period as the one at radio frequency.
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Xu Chunxian, He Huilin, He Huihai, Chen Yongzhong, Li Huidong and Jiang Yinlin. Pulsed Emission of Very High Energy Gamma-Rays From Crab Pulsar[J]. Chinese Physics C, 1998, 22(1): 4-12.

Xu Chunxian, He Huilin, He Huihai, Chen Yongzhong, Li Huidong and Jiang Yinlin. Pulsed Emission of Very High Energy Gamma-Rays From Crab Pulsar[J]. Chinese Physics C, 1998, 22(1): 4-12. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Pulsed Emission of Very High Energy Gamma-Rays From Crab Pulsar

Corresponding author: Xu Chunxian,

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1998-01-05

Abstract: We present here the results of observation of- very high energy(VHE) gamma-ray emission from Crab Pulsar with Beijing Atmospheric Cerenkov Telescopes, named ACT2 and ACT3, for the duration of the fall 1995-spring 1996 season. The data are based on 168 hours (ACT2) and 125 hours (ACT3) of exposure over the period of observation in tracking model. After conversion the event time to the solar barycenter, the data have been searched for evidence of pulsed emission at 33ms period of Crab Pulsar, We found no steady emission of VHE Gamma-ray with 33ms period at the scale of month or night. But there are two evidences of sporadic emission over an hour duration with the same period as the one at radio frequency.