DETECTION OF GAMMA-RAY EMISSION FROM THE STARBURST GALAXIES M82 AND NGC 253 WITH THE LARGE AREA TELESCOPE ON FERMI

被引：187

作者：

Abdo, A. A. ^{[1
,2
]}

Ackermann, M. ^{[3
,4
]}

Ajello, M. ^{[3
,4
]}

Atwood, W. B. ^{[5
,6
]}

Axelsson, M. ^{[7
,8
]}

Baldini, L. ^{[9
]}

Ballet, J. ^{[10
]}

Barbiellini, G. ^{[11
,12
]}

Bastieri, D. ^{[13
,14
]}

Bechtol, K. ^{[3
,4
]}

Bellazzini, R. ^{[9
]}

Berenji, B. ^{[3
,4
]}

Bloom, E. D. ^{[3
,4
]}

Bonamente, E. ^{[15
,16
]}

Borgland, A. W. ^{[3
,4
]}

Bregeon, J. ^{[9
]}

Brez, A. ^{[9
]}

Brigida, M. ^{[17
,18
,19
]}

Bruel, P. ^{[20
]}

Burnett, T. H.

Caliandro, G. A. ^{[17
,18
,19
]}

Cameron, R. A. ^{[3
,4
]}

Caraveo, P. A. ^{[21
]}

Casandjian, J. M. ^{[10
]}

Cavazzuti, E. ^{[22
]}

Cecchi, C. ^{[15
,16
]}

Celik, Oe ^{[23
,24
]}

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

Chekhtman, A. ^{[1
,25
]}

Cheung, C. C. ^{[23
]}

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

Ciprini, S. ^{[15
,16
]}

Claus, R. ^{[3
,4
]}

Cohen-Tanugi, J. ^{[26
]}

Conrad, J.

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

de Angelis, A. ^{[29
,30
]}

de Palma, F. ^{[17
,18
,19
]}

Digel, S. W. ^{[3
,4
]}

do Couto e Silva, E. ^{[3
,4
]}

Drell, P. S. ^{[3
,4
]}

Drlica-Wagner, A. ^{[3
,4
]}

Dubois, R. ^{[3
,4
]}

Dumora, D. ^{[31
,32
]}

Farnier, C. ^{[26
]}

Favuzzi, C. ^{[17
,18
,19
]}

Fegan, S. J. ^{[20
]}

Focke, W. B. ^{[3
,4
]}

Foschini, L. ^{[33
]}

Frailis, M. ^{[29
,30
]}

机构：

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

[2] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA

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

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

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

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

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

[8] Oskar Klein Ctr Cosmo Particle Phys, SE-10691 Stockholm, Sweden

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

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

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

[12] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy

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

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

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

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

[17] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy

[18] Politecn Bari, I-70126 Bari, Italy

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[33] INAF Osservatorio Astron Brera, I-23807 Merate, Italy

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

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

[36] Univ Alabama, Huntsville, AL 35899 USA

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

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

[39] Waseda Univ, Shinjuku Ku, Tokyo, Japan

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

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

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

[43] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA

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

[45] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, JAXA, Sagamihara, Kanagawa 2298510, Japan

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

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

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

[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 LETTERS | 2010年 / 709卷 / 02期

关键词：

cosmic rays; galaxies:; individual; (M82; NGC; 253); gamma rays: general; radiation mechanisms: non-thermal; ALL-SKY SURVEY; NEARBY GALAXIES; GAS; DISCOVERY; DISTANCE; NUCLEUS;

D O I：

10.1088/2041-8205/709/2/L152

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the detection of high-energy gamma-ray emission from two starburst galaxies using data obtained with the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. Steady point-like emission above 200 MeV has been detected at significance levels of 6.8 sigma and 4.8 sigma, respectively, from sources positionally coincident with locations of the starburst galaxies M82 and NGC 253. The total fluxes of the sources are consistent with gamma-ray emission originating from the interaction of cosmic rays with local interstellar gas and radiation fields and constitute evidence for a link between massive star formation and gamma-ray emission in star-forming galaxies.

引用

页码：L152 / L157

页数：6

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