Very high energy γ-rays from galactic sources

被引：0
|
作者：
P. R. Vishwanath
机构：
[1] Tata Institute of Fundamental Research,
来源：
Journal of Astrophysics and Astronomy | 2002年 / 23卷
关键词：
Galactic sources; γ-ray astronomy; PACT;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The field of Very High Energy (VHE) gamma ray astronomy using the Atmospheric Cerenkov Technique has entered an interesting phase with detection of various galactic and extragalactic sources. Among galactic sources, only the Crab nebula has been established as a standard candle. Most observations on pulsars are in agreement as to the necessity for the GeV spectra to steepen at < 200 GeV. While the Imaging method for increase of sensitivity has been successful with many results, an alternate technique —Wavefront Sampling Technique- is also being used by an increasing number of experiments. The recently commissioned experiment at Pachmarhi (PACT) in India is presented as an example of this technique. Preliminary results from this experiment show detection of VHE γ-ray emission from (a) the Crab nebula at a high significance and (b) Crab and Geminga pulsars at > 1.5 TeV which could be the second component of the Outer Gap pulsar models.
引用
收藏
页码：45 / 51
页数：6
相关论文
共 50 条
  • [31] TeV gamma rays from galactic sources
    Weekes, TC
    VULCANO WORKSHOP 1996 - FRONTIER OBJECTS IN ASTROPHYSICS AND PARTICLE PHYSICS, 1997, 57 : 231 - 245
  • [32] Active Galactic Nuclei as Potential Sources of Ultra-High Energy Cosmic Rays
    Rieger, Frank M.
    UNIVERSE, 2022, 8 (11)
  • [33] IN SEARCH OF COSMIC SOURCES OF VERY HIGH-ENERGY GAMMA-RAYS
    DEJAGER, OC
    SOUTH AFRICAN JOURNAL OF SCIENCE, 1988, 84 (08) : 619 - 619
  • [34] Propagation of Ultra High Energy Cosmic Rays from Galactic Sources in a Fractal Interstellar Medium and Origin Studies
    Davoudifar, Pantea
    Tabari, Keihanak Rowshan
    Doostmohammadi, Saeed
    6TH INTERNATIONAL CONFERENCE ON MATHEMATICAL MODELLING IN PHYSICAL SCIENCES (IC-MSQUARE 2017), 2017, 936
  • [35] IceCube Search for Galactic Neutrino Sources based on Very High Energy γ-ray Observations
    Kheirandish, Ali
    16TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2019), 2020, 1468
  • [36] Search for very high energy gamma-rays from active galactic nuclei with the CANGAROO-III telescope
    Sakamoto, Y.
    Hattori, T.
    Inoue, R.
    Nishijima, K.
    Adachi, Y.
    Asahara, A.
    Bicknell, G. V.
    Clay, R. W.
    Doi, Y.
    Edwards, P. G.
    Enomoto, R.
    Gunji, S.
    Hara, S.
    Hara, T.
    Hayashi, Sei.
    Higashi, Y.
    Itoh, C.
    Kabuki, S.
    Kajino, F.
    Katagiri, H.
    Kawachi, A.
    Kawasaki, S.
    Kifune, T.
    Kiuchi, R.
    Konno, K.
    Ksenofontov, L. T.
    Kubo, H.
    Kushida, J.
    Matsubara, Y.
    Mizumoto, Y.
    Mori, M.
    Muraishi, H.
    Muraki, Y.
    Naito, T.
    Nakamori, T.
    Nishida, D.
    Ohishi, M.
    Patterson, J. R.
    Protheroe, R. J.
    Sato, M.
    Suzuki, S.
    Suzuki, T.
    Swaby, D. L.
    Tanimori, T.
    Tanimura, H.
    Thornton, G. J.
    Tsuchiya, K.
    Watanabe, S.
    Yamaoka, T.
    Yamazaki, M.
    Proceedings of the 29th International Cosmic Ray Conference, Vol 4: OG 2.1, 2.2 & 2.3, 2005, : 387 - 390
  • [37] Very high energy γ rays from close active galactic nuclei Mkn 421, Mkn 501, and NGC 1275
    V. G. Sinitsina
    T. P. Arsov
    S. S. Borisov
    S. I. Nikol’sky
    F. I. Musin
    V. Yu. Sinitsina
    G. F. Platonov
    Bulletin of the Russian Academy of Sciences: Physics, 2007, 71 (7) : 906 - 909
  • [38] Very high energy cosmic rays
    Fonseca, MV
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2003, 114 : 233 - 246
  • [39] Galactic sources of high energy neutrinos
    Aharonian, Felix
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2012, 221 : 5 - 12
  • [40] Very high energy gamma rays from the direction of Sagittarius A
    Aharonian, F
    Akhperjanian, AG
    Aye, KM
    Bazer-Bachi, AR
    Beilicke, M
    Benbow, W
    Berge, D
    Berghaus, P
    Bernlöhr, K
    Bolz, O
    Boisson, C
    Borgmeier, C
    Breitling, F
    Brown, AM
    Gordo, JB
    Chadwick, PM
    Chitnis, VR
    Chounet, LM
    Cornils, R
    Costamante, L
    Degrange, B
    Djannati-Ataï, A
    Drury, LO
    Ergin, T
    Espigat, P
    Feinstein, F
    Fleury, P
    Fontaine, G
    Funk, S
    Gallant, Y
    Giebels, B
    Gillessen, S
    Goret, P
    Guy, J
    Hadjichristidis, C
    Hauser, M
    Heinzelmann, G
    Henri, G
    Hermann, G
    Hinton, JA
    Hofmann, W
    Holleran, M
    Horns, D
    de Jager, OC
    Jung, I
    Khélifi, B
    Komin, N
    Konopelko, A
    Latham, IJ
    Le Gallou, R
    ASTRONOMY & ASTROPHYSICS, 2004, 425 (01): : L13 - L17
12345