学术探索
学术期刊
新闻热点
数据分析
智能评审

Discovery of very high energy γ-rays from 1ES 1011+496 at z=0.212

被引：110
作者：
Albert, J.
Aliu, E.
Anderhub, H.
Antoranz, P.
Armada, A.
Baixeras, C.
Barrio, J. A.
Bartko, H.
Bastieri, D.
Becker, J. K.
Bednarek, W.
Berger, K.
Bigongiari, C.
Biland, A.
Bock, R. K.
Bordas, P.
Bosch-Ramon, V.
Bretz, T.
Britvitch, I.
Camara, M.
Carmona, E.
Chilingarian, A.
Coarasa, J. A.
Commichau, S.
Contreras, J. L.
Cortina, J.
Costado, M. T.
Curtef, V.
Danielyan, V.
Dazzi, F.
De Angelis, A.
Delgado, C.
Reyes, R. de los
De Lotto, B.
Domingo-Santamaria, E.
Dorner, D.
Doro, M.
Errando, M.
Fagiolini, M.
Ferenc, D.
Fernandez, E.
Firpo, R.
Flix, J.
Fonseca, M. V.
Font, L.
Fuchs, M.
Galante, N.
Garcia-Lopez, R. J.
Garczarczyk, M.
Gaug, M.
机构：
[1] Univ Wurzburg, D-97074 Wurzburg, Germany
[2] IFAE, E-08193 Barcelona, Spain
[3] ETH, CH-8093 Zurich, Switzerland
[4] Univ Complutense, E-28040 Madrid, Spain
[5] Univ Autonoma Barcelona, E-08193 Barcelona, Spain
[6] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[7] Univ Padua, I-35131 Padua, Italy
[8] Ist Nazl Fis Nucl, I-35131 Padua, Italy
[9] Univ Dortmund, D-44227 Dortmund, Germany
[10] Univ Lodz, PL-90236 Lodz, Poland
[11] Univ Barcelona, E-08028 Barcelona, Spain
[12] Yerevan Phys Inst, Yerevan 375036, Armenia
[13] Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain
[14] Dept Astrofis, E-38206 Tenerife, Spain
[15] Univ Udine, I-33100 Udine, Italy
[16] INFN Trieste, I-33100 Udine, Italy
[17] Univ Siena, I-53100 Siena, Italy
[18] INFN Pisa, I-53100 Siena, Italy
[19] Univ Calif Davis, Davis, CA 95616 USA
[20] Humboldt Univ, D-12489 Berlin, Germany
[21] Univ Turku, Tuorla Observ, FI-21500 Piikkio, Finland
[22] Inst Nucl Energy Res, BG-1784 Sofia, Bulgaria
[23] Florida Inst Technol, Dept Phys & Space Sci, Melbourne, FL 32901 USA
[24] INAF, Osservatorio Astron Trieste, I-34131 Trieste, Italy
[25] Univ Pisa, I-56126 Pisa, Italy
[26] Ist Nazl Fis Nucl, I-56126 Pisa, Italy
[27] INAF Osservatorio Astron Brera, Milan, Italy
[28] ICREA, E-08193 Barcelona, Spain
[29] CSIC, IEEC, Inst Ciencies Espai, E-08193 Barcelona, Spain
来源：
ASTROPHYSICAL JOURNAL | 2007年 / 667卷 / 01期
关键词：
gamma rays : observations; quasars : individual (1ES 1011+496);
D O I：
10.1086/521982
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report on the discovery of very high energy (VHE) gamma-ray emission from the BL Lacertae object 1ES 1011+496. The observation was triggered by an optical outburst in 2007 March and the source was observed with the MAGIC telescope from 2007 March to May. Observing for 18.7 hr, we find an excess of 6.2 sigma with an integrated flux above 200 GeV of ( 1.58 +/- 0.32) x 10(-11) photons cm(-2) s(-1). The VHE gamma-ray flux is > 40% higher than in 2006 March-April ( reported elsewhere), indicating that the VHE emission state may be related to the optical emission state. We have also determined the redshift of 1ES 1011+496 based on an optical spectrum that reveals the absorption lines of the host galaxy. The redshift of z = 0.212 makes 1ES 1011+496 the most distant source observed to emit VHE gamma-rays to date.
引用
收藏
页码：L21 / L24
页数：4
相关论文
共 37 条
  • [1] Fast variability of tera-electron volt γ rays from the radio galaxy M87
    Aharonian, F.
    Akhperjanian, A. G.
    Bazer-Bachi, A. R.
    Beilicke, M.
    Benbow, W.
    Berge, D.
    Bernloehr, K.
    Boisson, C.
    Bolz, O.
    Borrel, V.
    Braun, I.
    Brown, A. M.
    Buehler, R.
    Buesching, I.
    Carrigan, S.
    Chadwick, P. M.
    Chounet, L. -M.
    Coignet, G.
    Cornils, R.
    Costamante, L.
    Degrange, B.
    Dickinson, H. J.
    Djannati-Atai, A.
    Drury, L. O'C.
    Dubus, G.
    Egberts, K.
    Emmanoulopoulos, D.
    Espigat, P.
    Feinstein, F.
    Ferrero, E.
    Fiasson, A.
    Fontaine, G.
    Funk, Seb.
    Funk, S.
    Fuessling, M.
    Gallant, Y. A.
    Giebels, B.
    Glicenstein, J. F.
    Goret, P.
    Hadjichristidis, C.
    Hauser, D.
    Hauser, M.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hinton, J. A.
    Hoffmann, A.
    Hofmann, W.
    Holleran, M.
    Hoppe, S.
    [J]. SCIENCE, 2006, 314 (5804) : 1424 - 1427
  • [2] A low level of extragalactic background light as revealed by γ-rays from blazars
    Aharonian, F
    Akhperjanian, AG
    Bazer-Bachi, AR
    Beilicke, M
    Benbow, W
    Berge, D
    Bernlöhr, K
    Boisson, C
    Bolz, O
    Borrel, V
    Braun, I
    Breitling, F
    Brown, AM
    Chadwick, PM
    Chounet, LM
    Cornils, R
    Costamante, L
    Degrange, B
    Dickinson, HJ
    Djannati-Ataï, A
    Drury, LO
    Dubus, G
    Emmanoulopoulos, D
    Espigat, P
    Feinstein, F
    Fontaine, G
    Fuchs, Y
    Funk, S
    Gallant, YA
    Giebels, B
    Gillessen, S
    Glicenstein, JF
    Goret, P
    Hadjichristidis, C
    Hauser, D
    Hauser, M
    Heinzelmann, G
    Henri, G
    Hermann, G
    Hinton, JA
    Hofmann, W
    Holleran, M
    Horns, D
    Jacholkowska, A
    de Jager, OC
    Khélifi, B
    Klages, S
    Komin, N
    Konopelko, A
    Latham, IJ
    [J]. NATURE, 2006, 440 (7087) : 1018 - 1021
  • [3] Evidence for VHE γ-ray emission from the distant BL Lac PG 1553+113
    Aharonian, F
    Akhperjanian, AG
    Bazer-Bachi, AR
    Beilicke, M
    Benbow, W
    Berge, D
    Bernlöhr, K
    Boisson, C
    Bolz, O
    Borrel, V
    Braun, I
    Breitling, F
    Brown, AM
    Bühler, R
    Carrigan, S
    Chadwick, PM
    Chounet, LM
    Cornils, R
    Costamante, L
    Degrange, B
    Dickinson, HJ
    Djannati-Ataï, A
    Drury, LO
    Dubus, G
    Egberts, K
    Emmanoulopoulos, D
    Espigat, P
    Feinstein, F
    Fontaine, G
    Funk, S
    Gallant, YA
    Giebels, B
    Glicenstein, JF
    Goret, P
    Hadjichristidis, C
    Hauser, D
    Hauser, M
    Heinzelmann, G
    Henri, G
    Hermann, G
    Hinton, JA
    Hofmann, W
    Holleran, M
    Horns, D
    Jacholkowska, A
    de Jager, OC
    Khélifi, B
    Komin, N
    Konopelko, A
    Latham, IJ
    [J]. ASTRONOMY & ASTROPHYSICS, 2006, 448 (02) : L19 - L23
  • [4] Observations of 54 active galactic nuclei with the HEGRA system of Cherenkov telescopes
    Aharonian, F
    Akhperjanian, A
    Beilicke, M
    Bernlöhr, K
    Börst, HG
    Bojahr, H
    Bolz, O
    Coarasa, T
    Contreras, JL
    Cortina, J
    Denninghoff, S
    Fonseca, V
    Girma, M
    Götting, N
    Heinzelmann, G
    Hermann, G
    Heusler, A
    Hofmann, W
    Horns, D
    Jung, I
    Kankanyan, R
    Kestel, M
    Mang, O
    Mazin, D
    Meyer, H
    Mirzoyan, R
    Moralejo, A
    Ona-Wilhelmi, E
    Panter, M
    Plyasheshnikov, A
    Pühlhofer, G
    de los Reyes, R
    Rhode, W
    Ripken, J
    Rowell, G
    Sahakian, V
    Samorski, M
    Schilling, M
    Siems, M
    Sobzynska, D
    Stamm, W
    Tluczykont, M
    Vitale, V
    Völk, HJ
    Wiedner, CA
    Wittek, W
    [J]. ASTRONOMY & ASTROPHYSICS, 2004, 421 (02): : 529 - 537
  • [5] Is the giant radio galaxy M 87 a TeV gamma-ray emitter?
    Aharonian, F
    Akhperjanian, A
    Beilicke, M
    Bernlöhr, K
    Börst, HG
    Bojahr, H
    Bolz, O
    Coarasa, T
    Contreras, JL
    Cortina, J
    Denninghoff, S
    Fonseca, MV
    Girma, M
    Götting, N
    Heinzelmann, G
    Hermann, G
    Heusler, A
    Hofmann, W
    Horns, D
    Jung, I
    Kankanyan, R
    Kestel, M
    Kohnle, A
    Konopelko, A
    Kornmeyer, H
    Kranich, D
    Lampeitl, H
    Lopez, M
    Lorenz, E
    Lucarelli, F
    Mang, O
    Meyer, H
    Mirzoyan, R
    Moralejo, A
    Ona-Wilhelmi, E
    Panter, M
    Plyasheshnikov, A
    Pühlhofer, G
    de los Reyes, R
    Rhode, W
    Ripken, J
    Rowell, G
    Sahakian, V
    Samorski, M
    Schilling, M
    Siems, M
    Sobzynska, D
    Stamm, W
    Tluczykont, M
    Vitale, V
    [J]. ASTRONOMY & ASTROPHYSICS, 2003, 403 (01) : L1 - L5
  • [6] Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope
    Albert, J.
    Aliu, E.
    Anderhub, H.
    Antoranz, P.
    Armada, A.
    Baixeras, C.
    Barrio, J. A.
    Bartko, H.
    Bastieri, D.
    Becker, J.
    Bednarek, W.
    Berger, K.
    Bigongiari, C.
    Biland, A.
    Bock, R. K.
    Bordas, P.
    Bosch-Raman, V.
    Bretz, T.
    Britvitch, I.
    Camara, M.
    Carmona, E.
    Chilingarian, A.
    Ciprini, S.
    Coarasa, J. A.
    Commichau, S.
    Contreras, J. L.
    Cortina, J.
    Curtef, V.
    Danielyan, V.
    Dazzi, F.
    De Angelis, A.
    Reyes, R. de los
    De Lotto, B.
    Domingo-Santamaria, E.
    Dorner, D.
    Doro, M.
    Errando, M.
    Fagiolini, M.
    Ferenc, D.
    Fernandez, E.
    Firpo, R.
    Flix, J.
    Fonseca, M. V.
    Font, L.
    Fuchs, M.
    Galante, N.
    Garczarczyk, M.
    Gaug, M.
    Giller, M.
    Goebel, F.
    [J]. ASTROPHYSICAL JOURNAL, 2007, 654 (02) : L119 - L122
  • [7] Discovery of very high energy γ-rays from Markarian 180 triggered by an optical outburst
    Albert, J.
    Aliu, E.
    Anderhub, H.
    Antoranz, P.
    Armada, A.
    Asensio, M.
    Baixeras, C.
    Barrio, J. A.
    Bartko, H.
    Bastieri, D.
    Becker, J.
    Bednarek, W.
    Berger, K.
    Bigongiari, C.
    Biland, A.
    Bisesi, E.
    Bock, R. K.
    Bordas, P.
    Bosch-Ramon, V.
    Bretz, T.
    Britvitch, I.
    Camara, M.
    Carmona, E.
    Chilingarian, A.
    Ciprini, S.
    Coarasa, J. A.
    Commichau, S.
    Contreras, J. L.
    Cortina, J.
    Curtef, V.
    Danielyan, V.
    Dazzi, F.
    De Angelis, A.
    de los Reyes, R.
    De Lotto, B.
    Domingo-Santamaria, E.
    Dorner, D.
    Doro, M.
    Errando, M.
    Fagiolini, M.
    Ferenc, D.
    Fernandez, E.
    Firpo, R.
    Flix, J.
    Fonseca, M. V.
    Font, L.
    Fuchs, M.
    Galante, N.
    Garczarczyk, M.
    Gaug, M.
    [J]. ASTROPHYSICAL JOURNAL, 2006, 648 (02) : L105 - L108
  • [8] ALBERT J, 2000, APJ, V666, pLUM
  • [9] ALBERT J, 2007, UNPUB ARXIV07053244
  • [10] ALBERT J, 2007, UNPUB ARXIV 07064453
1234