تقرير
TeV Gamma-ray Observations of Markarian 421 using TACTIC during 2009-10
| العنوان: | TeV Gamma-ray Observations of Markarian 421 using TACTIC during 2009-10 |
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| المؤلفون: | Chandra, P., Rannot, R. C., Yadav, K. K., Tickoo, A. K., Singh, K. K., Chanchalani, K., Kothari, M., Agarwal, N. K., Goyal, A., Goyal, H. C., Kotwal, S., Kumar, N., Marandi, P., Venugopal, K., Bhat, C. K., Bhatt, N., Bhattacharya, S., Borwankar, C., Chouhan, N., Dhar, V. K., Kaul, S. R., Koul, S. K., Koul, M. K., Koul, R., Mitra, A. K., Sahayanathan, S., Sharma, M. |
| سنة النشر: | 2012 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Nongalactic Astrophysics |
| الوصف: | We have observed the blazar Markarian 421 with the TACTIC $\gamma$-ray telescope at Mt. Abu, India, from 22 November 2009 to 16 May 2010 for 265 hours. Detailed analysis of the data so recorded revealed presence of a TeV $\gamma$-ray signal with a statistical significance of 12.12$\sigma$ at $E_{\gamma}\geq$ 1 TeV. We have estimated the time averaged differential energy spectrum of the source in the energy range 1.0 - 16.44 TeV. The spectrum fits well with the power law function of the form ($dF/dE=f_0 E^{-\Gamma}$) with $f_0=(1.39\pm0.239)\times 10^{-11}cm^{-2}s^{-1}TeV^{-1}$ and $\Gamma=2.31\pm0.14$. Comment: 15 pages, 7 figures: Accepted for publication in J. Phys. G: Nucl. Part. Phys |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/0954-3899/39/4/045201 |
| URL الوصول: | http://arxiv.org/abs/1202.2984 |
| رقم الأكسشن: | edsarx.1202.2984 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/0954-3899/39/4/045201 |
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