VERITAS UPPER LIMIT ON THE VERY HIGH ENERGY EMISSION FROM THE RADIO GALAXY NGC 1275

被引：23

作者：

Acciari, V. A. ^{[1
,2
]}

Aliu, E. ^{[3
,4
]}

Arlen, T. ^{[5
]}

Aune, T. ^{[6
,7
]}

Bautista, M. ^{[8
]}

Beilicke, M. ^{[9
]}

Benbow, W. ^{[1
]}

Boltuch, D. ^{[3
,4
]}

Bradbury, S. M. ^{[10
]}

Buckley, J. H. ^{[9
]}

Bugaev, V. ^{[9
]}

Byrum, K. ^{[11
]}

Cannon, A. ^{[12
]}

Celik, O. ^{[5
]}

Cesarini, A. ^{[13
]}

Ciupik, L. ^{[14
]}

Cogan, P. ^{[8
]}

Cui, W. ^{[15
]}

Dickherber, R. ^{[9
]}

Duke, C. ^{[16
]}

Fegan, S. J. ^{[5
]}

Finley, J. P. ^{[15
]}

Fortin, P. ^{[17
]}

Fortson, L. ^{[14
]}

Furniss, A. ^{[6
,7
]}

Galante, N. ^{[1
]}

Gall, D. ^{[15
]}

Gibbs, K. ^{[1
]}

Gillanders, G. H. ^{[13
]}

Godambe, S. ^{[18
]}

Grube, J. ^{[12
]}

Guenette, R. ^{[8
]}

Gyuk, G. ^{[14
]}

Hanna, D. ^{[8
]}

Holder, J. ^{[3
,4
]}

Horan, D. ^{[19
]}

Hui, C. M. ^{[18
]}

Humensky, T. B. ^{[20
]}

Imran, A. ^{[21
]}

Kaaret, P. ^{[22
]}

Karlsson, N. ^{[14
]}

Kertzman, M. ^{[23
]}

Kieda, D. ^{[18
]}

Konopelko, A. ^{[24
]}

Krawczynski, H. ^{[9
]}

Krennrich, F. ^{[21
]}

Lang, M. J. ^{[13
]}

LeBohec, S. ^{[18
]}

Maier, G. ^{[8
]}

McCann, A. ^{[8
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA

[2] Galway Mayo Inst Technol, Dept Life & Phys Sci, Galway, Ireland

[3] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA

[4] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

[5] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[6] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA

[7] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA

[8] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[9] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[10] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England

[11] Argonne Natl Lab, Argonne, IL 60439 USA

[12] Univ Coll Dublin, Sch Phys, Dublin 4, Ireland

[13] Natl Univ Ireland, Sch Phys, Galway, Ireland

[14] Adler Planetarium & Astron Museum, Dept Astron, Chicago, IL 60605 USA

[15] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA

[16] Grinnell Coll, Dept Phys, Grinnell, IA 50112 USA

[17] Columbia Univ, Barnard Coll, Dept Phys & Astron, New York, NY 10027 USA

[18] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

[19] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France

[20] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[21] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[22] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

[23] Depauw Univ, Dept Phys & Astron, Greencastle, IN 46135 USA

[24] Pittsburg State Univ, Dept Phys, Pittsburg, KS 66762 USA

[25] Anderson Univ, Dept Phys, Anderson, IN 46012 USA

[26] Cork Inst Technol, Dept Appl Phys & Instrumentat, Cork, Ireland

[27] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA

[28] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan

[29] ASI, Sci Data Ctr, I-00044 Frascati, Roma, Italy

[30] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[31] Ctr Etud Nucl Bordeaux Gradignan, CNRS, UMR 5797, IN2P3, F-33175 Gradignan, France

[32] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France

[33] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy

[34] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2009年 / 706卷 / 02期

基金：

爱尔兰科学基金会; 美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

galaxies:; individual; (NGC; 1275; 3C; 84; Perseus A); galaxies: Seyfert; gamma rays: observations; GAMMA-RAY EMISSION; ACTIVE GALACTIC NUCLEI; PEAKED BL-LACERTAE; DISCOVERY; RADIATION; JETS; MODEL; ARRAY; M87;

D O I：

10.1088/0004-637X/706/2/L275

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The recent detection by the Fermi gamma-ray space telescope of high-energy gamma-rays from the radio galaxy NGC 1275 makes the observation of the very high energy (VHE: E > 100 GeV) part of its broadband spectrum particularly interesting, especially for the understanding of active galactic nuclei with misaligned multi-structured jets. The radio galaxy NGC 1275 was recently observed by VERITAS at energies above 100 GeV for about 8 hr. No VHE gamma-ray emission was detected by VERITAS from NGC 1275. A 99% confidence level upper limit of 2.1% of the Crab Nebula flux level is obtained at the decorrelation energy of approximately 340 GeV, corresponding to 19% of the power-law extrapolation of the Fermi Large Area Telescope result.

引用

页码：L275 / L280

页数：6

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