Abstract
view Abstract Citations (7) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Search for 10 TeV Gamma-Ray Emission from Active Galactic Nuclei with the Tibet Air Shower Array Amenomori, M. ; Cao, Z. ; Dai, B. Z. ; Ding, L. K. ; Feng, Y. X. ; Feng, Z. Y. ; Hibino, K. ; Hotta, N. ; Huang, Q. ; Huo, A. X. ; Jia, H. Y. ; Jiang, G. Z. ; Jiao, S. Q. ; Kajino, F. ; Kasahara, K. ; Labaciren ; Liu, S. M. ; Mei, D. M. ; Meng, L. ; Meng, X. R. ; Mimaciren ; Mizutani, K. ; Mu, J. ; Nanjo, H. ; Nishizawa, M. ; Oguro, A. ; Ohnishi, M. ; Ohta, I. ; Ouchi, T. ; Ren, J. R. ; Saito, To. ; Sakata, M. ; Shi, Z. Z. ; Shibata, M. ; Shirai, T. ; Sugimoto, H. ; Sun, X. X. ; Taira, K. ; Tan, Y. H. ; Tateyama, N. ; Torii, S. ; Wang, H. ; Wen, C. Z. ; Yamamoto, Y. ; Yu, G. C. ; Yuan, P. ; Yuda, T. ; Zhang, C. S. ; Zhang, H. M. ; Zhang, L. and 4 more Abstract A search for 10 TeV γ-ray emission from 15 active galactic nuclei (AGNs) which were detected by EGRET was made with the Tibet air shower array installed at an elevation of 4300 m above sea level. The data set, taken in the period from 1990 June 18 through 1992 September 29 has been used to search for continuous emission as well as emission on the timescale of 1 day. No evidence for emission from any of the AGNs on any of the time scales examined was found. The 95% confidence level upper limit to the continuous flux is presented on each source, and in particular the result for Markarian 421 is compared with other experiments. Further observation of γ-rays at energies around 10 TeV from nearby AGNs will provide reliable information on the strength of the intergalactic background photon field. Publication: The Astrophysical Journal Pub Date: July 1994 DOI: 10.1086/174350 Bibcode: 1994ApJ...429..634A Keywords: Active Galactic Nuclei; Continuous Radiation; Cosmic Rays; Flux Density; Gamma Rays; Markarian Galaxies; Northern Sky; Quasars; Computerized Simulation; Fourier Transformation; Monte Carlo Method; Scintillation Counters; Tibet; Astrophysics; GALAXIES: ACTIVE; GALAXIES: NUCLEI; GALAXIES: QUASARS: INDIVIDUAL NAME: MARKARIAN 421; GAMMA RAYS: OBSERVATIONS; ISM: COSMIC RAYS full text sources ADS | data products NED (15) SIMBAD (14)
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