FERMI LARGE AREA TELESCOPE GAMMA-RAY DETECTION OF THE RADIO GALAXY M87

被引：150

作者：

Abdo, A. A. ^{[1
]}

Ackermann, M. ^{[2
,3
]}

Ajello, M. ^{[2
,3
]}

Atwood, W. B. ^{[4
,5
]}

Axelsson, M. ^{[6
,7
]}

Baldini, L. ^{[8
]}

Ballet, J. ^{[9
]}

Barbiellini, G. ^{[10
,11
]}

Bastieri, D. ^{[12
,13
]}

Bechtol, K. ^{[2
,3
]}

Bellazzini, R. ^{[8
]}

Berenji, B. ^{[2
,3
]}

Blandford, R. D. ^{[2
,3
]}

Bloom, E. D. ^{[2
,3
]}

Bonamente, E. ^{[14
,15
]}

Borgland, A. W. ^{[2
,3
]}

Bregeon, J. ^{[8
]}

Brez, A. ^{[8
]}

Brigida, M. ^{[16
,17
]}

Bruel, P. ^{[18
]}

Burnett, T. H. ^{[19
]}

Caliandro, G. A. ^{[16
,17
]}

Cameron, R. A. ^{[2
,3
]}

Cannon, A. ^{[21
]}

Caraveo, P. A. ^{[22
]}

Casandjian, J. M. ^{[9
]}

Cavazzuti, E. ^{[23
]}

Cecchi, C. ^{[14
,15
]}

Celik, Oe ^{[20
,24
]}

Charles, E. ^{[2
,3
]}

Cheung, C. C. ^{[1
]}

Chiang, J. ^{[2
,3
]}

Ciprini, S. ^{[14
,15
]}

Claus, R. ^{[2
,3
]}

Cohen-Tanugi, J. ^{[25
]}

Colafrancesco, S. ^{[23
]}

Conrad, J. ^{[7
,26
]}

Costamante, L. ^{[2
,3
]}

Cutini, S. ^{[23
]}

Davis, D. S. ^{[24
]}

Dermer, C. D. ^{[1
]}

de Angelis, A. ^{[27
,28
]}

de Palma, F. ^{[16
,17
]}

Digel, S. W. ^{[2
,3
]}

Donato, D.

do Couto e Silva, E. ^{[2
,3
]}

Drell, P. S. ^{[2
,3
]}

Dubois, R. ^{[2
,3
]}

Dumora, D. ^{[29
,30
]}

Edmonds, Y. ^{[2
,3
]}

机构：

[1] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA

[2] Stanford Univ, Dept Phys, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA

[3] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA

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

[5] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

[6] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden

[7] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden

[8] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy

[9] Univ Paris Diderot, CEA Saclay, Serv Astrophys, Lab AIM,CEA IRFU,CNRS, F-91191 Gif Sur Yvette, France

[10] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy

[11] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy

[12] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[13] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy

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

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

[16] Univ & Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy

[17] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

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

[19] Univ Washington, Dept Phys, Seattle, WA 98195 USA

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

[21] Univ Coll Dublin, Dublin 4, Ireland

[22] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy

[23] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00044 Frascati, Roma, Italy

[24] Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA

[25] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France

[26] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden

[27] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy

[28] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy

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

[30] CEN Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France

[31] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan

[32] Univ Maryland, College Pk, MD 20742 USA

[33] INAF Ist Radioastron, I-40129 Bologna, Italy

[34] Univ Alabama, Huntsville, AL 35899 USA

[35] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan

[36] Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan

[37] RIKEN, Cosm Radiat Lab, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[38] UPS, Ctr Etud Spatiale Rayonnements, CNRS, F-31028 Toulouse 4, France

[39] George Mason Univ, Fairfax, VA 22030 USA

[40] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy

[41] Univ Denver, Dept Phys & Astrophys, Denver, CO 80208 USA

[42] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany

[43] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan

[44] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria

[45] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

[46] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain

[47] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden

[48] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA

[49] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA

[50] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA

来源：

ASTROPHYSICAL JOURNAL | 2009年 / 707卷 / 01期

基金：

美国国家科学基金会;

关键词：

galaxies: active; galaxies: individual (M87); galaxies: jets; gamma rays: observations; radiation mechanisms: non-thermal; ACTIVE GALACTIC NUCLEI; SYNCHROTRON-PROTON BLAZAR; SUPERMASSIVE BLACK-HOLE; TEV EMISSION; UNIFIED SCHEMES; LAC OBJECTS; SOURCE LIST; EGRET DATA; JET; VARIABILITY;

D O I：

10.1088/0004-637X/707/1/55

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the Fermi Large Area Telescope (LAT) discovery of high-energy (MeV/GeV) gamma-ray emission positionally consistent with the center of the radio galaxy M87, at a source significance of over 10 sigma in 10 months of all-sky survey data. Following the detections of Cen A and Per A, this makes M87 the third radio galaxy seen with the LAT. The faint point-like gamma-ray source has a >100 MeV flux of 2.45 (+/-0.63) x 10(-8) photons cm(-2) s(-1) (photon index = 2.26 +/- 0.13) with no significant variability detected within the LAT observation. This flux is comparable with the previous EGRET upper limit (<2.18 x 10-8 photons cm(-2) s(-1), 2 sigma), thus there is no evidence for a significant MeV/GeV flare on decade timescales. Contemporaneous Chandra and Very Long Baseline Array data indicate low activity in the unresolved X-ray and radio core relative to previous observations, suggesting M87 is in a quiescent overall level over the first year of Fermi-LAT observations. The LAT gamma-ray spectrum is modeled as synchrotron self-Compton (SSC) emission from the electron population producing the radio-to-X-ray emission in the core. The resultant SSC spectrum extrapolates smoothly from the LAT band to the historical-minimum TeV emission. Alternative models for the core and possible contributions from the kiloparsec-scale jet in M87 are considered, and cannot be excluded.

引用

页码：55 / 60

页数：6

共 61 条

[1] FERMI/LARGE AREA TELESCOPE BRIGHT GAMMA-RAY SOURCE LIST
Abdo, A. A.
Ackermann, M.
Ajello, M.
Atwood, W. B.
Axelsson, M.
Baldini, L.
Ballet, J.
Band, D. L.
Barbiellini, G.
Bastieri, D.
Battelino, M.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Bignami, G. F.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Corbet, R.
Costamante, L.
Cutini, S.
Davis, D. S.
Dermer, C. D.
de Angelis, A.
de Luca, A.
de Palma, F.
Digel, S. W.
[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2009, 183 (01) : 46 - 66
[2] BRIGHT ACTIVE GALACTIC NUCLEI SOURCE LIST FROM THE FIRST THREE MONTHS OF THE FERMI LARGE AREA TELESCOPE ALL-SKY SURVEY
Abdo, A. A.
Ackermann, M.
Ajello, M.
Atwood, W. B.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Charles, E.
Chekhtman, A.
Chen, A. W.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Colafrancesco, S.
Collmar, W.
Cominsky, L. R.
Conrad, J.
Costamante, L.
Cutini, S.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
[J]. ASTROPHYSICAL JOURNAL, 2009, 700 (01) : 597 - 622
[3] FERMI DISCOVERY OF GAMMA-RAY EMISSION FROM NGC 1275
Abdo, A. A.
Ackermann, M.
Ajello, M.
Asano, K.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, A.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celotti, A.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Colafrancesco, S.
Cominsky, L. R.
Conrad, J.
Costamante, L.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
Donato, D.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Finke, J.
Focke, W. B.
[J]. ASTROPHYSICAL JOURNAL, 2009, 699 (01) : 31 - 39
[4] Observation of gamma-ray emission from the galaxy M87 above 250 GeV with VERITAS
Acciari, V. A.
Beilicke, M.
Blaylock, G.
Bradbury, S. M.
Buckley, J. H.
Bugaev, V.
Butt, Y.
Celik, O.
Cesarini, A.
Ciupik, L.
Cogan, P.
Colin, P.
Cui, W.
Daniel, M. K.
Duke, C.
Ergin, T.
Falcone, A. D.
Fegan, S. J.
Finley, J. P.
Finnegan, G.
Fortin, P.
Fortson, L. F.
Gibbs, K.
Gillanders, G. H.
Grube, J.
Guenette, R.
Gyuk, G.
Hanna, D.
Hays, E.
Holder, J.
Horan, D.
Hughes, S. B.
Hui, M. C.
Humensky, T. B.
Imran, A.
Kaaret, P.
Kertzman, M.
Kieda, D. B.
Kildea, J.
Konopelko, A.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
LeBohec, S.
Lee, K.
Maier, G.
McCann, A.
McCutcheon, M.
Millis, J.
Moriarty, P.
[J]. ASTROPHYSICAL JOURNAL, 2008, 679 (01) : 397 - 403
[5] Radio Imaging of the Very-High-Energy γ-Ray Emission Region in the Central Engine of a Radio Galaxy
Acciari, V. A.
Aliu, E.
Arlen, T.
Bautista, M.
Beilicke, M.
Benbow, W.
Bradbury, S. M.
Buckley, J. H.
Bugaev, V.
Butt, Y.
Byrum, K.
Cannon, A.
Celik, O.
Cesarini, A.
Chow, Y. C.
Ciupik, L.
Cogan, P.
Cui, W.
Dickherber, R.
Fegan, S. J.
Finley, J. P.
Fortin, P.
Fortson, L.
Furniss, A.
Gall, D.
Gillanders, G. H.
Grube, J.
Guenette, R.
Gyuk, G.
Hanna, D.
Holder, J.
Horan, D.
Hui, C. M.
Humensky, T. B.
Imran, A.
Kaaret, P.
Karlsson, N.
Kieda, D.
Kildea, J.
Konopelko, A.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
LeBohec, S.
Maier, G.
McCann, A.
McCutcheon, M.
Millis, J.
Moriarty, P.
Ong, R. A.
[J]. SCIENCE, 2009, 325 (5939) : 444 - 448
[6] 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
[7] DISCOVERY OF VERY HIGH ENERGY γ-RAY EMISSION FROM CENTAURUS A WITH HESS
Aharonian, F.
Akhperjanian, A. G.
Anton, G.
de Almeida, U. Barres
Bazer-Bachi, A. R.
Becherini, Y.
Behera, B.
Benbow, W.
Bernloehr, K.
Boisson, C.
Bochow, A.
Borrel, V.
Brion, E.
Brucker, J.
Brun, P.
Buehler, R.
Bulik, T.
Buesching, I.
Boutelier, T.
Chadwick, P. M.
Charbonnier, A.
Chaves, R. C. G.
Cheesebrough, A.
Chounet, L. -M.
Clapson, A. C.
Coignet, G.
Dalton, M.
Daniel, M. K.
Davids, I. D.
Degrange, B.
Deil, C.
Dickinson, H. J.
Djannati-Atai, A.
Domainko, W.
Drury, L. O'C.
Dubois, F.
Dubus, G.
Dyks, J.
Dyrda, M.
Egberts, K.
Emmanoulopoulos, D.
Espigat, P.
Farnier, C.
Feinstein, F.
Fiasson, A.
Foerster, A.
Fontaine, G.
Fuessling, M.
Gabici, S.
Gallant, Y. A.
[J]. ASTROPHYSICAL JOURNAL LETTERS, 2009, 695 (01) : L40 - L44
[8] The swift bat X-ray survey.: III.: X-ray spectra and statistical properties
Ajello, M.
Rau, A.
Greiner, J.
Kanbach, G.
Salvato, M.
Strong, A. W.
Barthelmy, S. D.
Gehrels, N.
Markwardt, C. B.
Tueller, J.
[J]. ASTROPHYSICAL JOURNAL, 2008, 673 (01) : 96 - 113
[9] THE EVOLUTION OF SWIFT/BAT BLAZARS AND THE ORIGIN OF THE MeV BACKGROUND
Ajello, M.
Costamante, L.
Sambruna, R. M.
Gehrels, N.
Chiang, J.
Rau, A.
Escala, A.
Greiner, J.
Tueller, J.
Wall, J. V.
Mushotzky, R. F.
[J]. ASTROPHYSICAL JOURNAL, 2009, 699 (01) : 603 - 625
[10] VERY HIGH ENERGY GAMMA-RAY OBSERVATIONS OF STRONG FLARING ACTIVITY IN M87 IN 2008 FEBRUARY
Albert, J.
Aliu, E.
Anderhub, H.
Antonelli, L. A.
Antoranz, P.
Backes, M.
Baixeras, C.
Barrio, J. A.
Bartko, H.
Bastieri, D.
Becker, J. K.
Bednarek, W.
Berger, K.
Bernardini, E.
Bigongiari, C.
Biland, A.
Bock, R. K.
Bonnoli, G.
Bordas, P.
Bosch-Ramon, V.
Bretz, T.
Britvitch, I.
Camara, M.
Carmona, E.
Chilingarian, A.
Commichau, S.
Contreras, J. L.
Cortina, J.
Costado, M. T.
Covino, S.
Curtef, V.
Dazzi, F.
De Angelis, A.
De Cea del Pozo, E.
de los Reyes, R.
De Lotto, B.
De Maria, M.
De Sabata, F.
Delgado Mendez, C.
Dominguez, A.
Dorner, D.
Doro, M.
Errando, M.
Fagiolini, M.
Ferenc, D.
Fernandez, E.
Firpo, R.
Fonseca, M. V.
Font, L.
Galante, N.
[J]. ASTROPHYSICAL JOURNAL LETTERS, 2008, 685 (01) : L23 - L26

← 1 2 3 4 5 6 7 →