Fermi Large Area Telescope Measurements of the Diffuse Gamma-Ray Emission at Intermediate Galactic Latitudes

被引：159

作者：

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

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

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

Anderson, B. ^{[5
,6
]}

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

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

Baldini, L. ^{[9
]}

Ballet, J. ^{[10
]}

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

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

Baughman, B. M. ^{[15
]}

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

Bellazzini, R. ^{[9
]}

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

Blandford, R. D. ^{[3
,4
]}

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

Bonamente, E. ^{[16
,17
]}

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

Bregeon, J. ^{[9
]}

Brez, A. ^{[9
]}

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

Bruel, P. ^{[20
]}

Burnett, T. H. ^{[21
]}

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

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

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

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

Cecchi, C. ^{[16
,17
]}

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

Chekhtman, A. ^{[1
,15
,23
]}

Cheung, C. C.

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

Ciprini, S. ^{[16
,17
]}

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

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

Conrad, J. ^{[8
,26
,27
]}

Dereli, H. ^{[14
]}

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

de Angelis, A. ^{[28
,29
]}

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

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

Di Bernardo, G. ^{[9
]}

Dormody, M. ^{[5
,6
]}

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

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

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

Dumora, D. ^{[30
,31
]}

Edmonds, Y. ^{[3
,4
]}

Farnier, C. ^{[25
]}

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

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, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA

[6] Univ Calif Santa Cruz, Dept Astron & Astrophys, 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, Lab AIM, CEA, IRFU,CNRS,Serv Astrophys,CEA Saclay, 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] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA

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

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

[18] Univ Politecn Bari, Dipartimento Fis M Merlin, 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] Univ Washington, Dept Phys, Seattle, WA 98195 USA

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

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

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

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

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

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

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

[29] Ist Nazl Fis Nucl, Sez Trieste, Grp Coll Udine, I-33100 Udine, Italy

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

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

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

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

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

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

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

[40] Univ Tokyo, Grad Sch Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

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

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

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

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

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

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

[47] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

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

[49] Inst Catalana Recerca & Estudis Avancats, Barcelona, Spain

[50] CIFS, I-10133 Turin, Italy

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 25期

基金：

瑞典研究理事会;

关键词：

EGRET OBSERVATIONS; SPECTRA;

D O I：

10.1103/PhysRevLett.103.251101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The diffuse galactic gamma-ray emission is produced by cosmic rays (CRs) interacting with the interstellar gas and radiation field. Measurements by the Energetic Gamma-Ray Experiment Telescope (EGRET) instrument on the Compton Gamma-Ray Observatory indicated excess gamma-ray emission greater than or similar to 1 GeV relative to diffuse galactic gamma-ray emission models consistent with directly measured CR spectra (the so-called "EGRET GeV excess"). The Large Area Telescope (LAT) instrument on the Fermi Gamma-Ray Space Telescope has measured the diffuse gamma-ray emission with improved sensitivity and resolution compared to EGRET. We report on LAT measurements for energies 100 MeV to 10 GeV and galactic latitudes 10 degrees <|b|< 20 degrees. The LAT spectrum for this region of the sky is well reproduced by a diffuse galactic gamma-ray emission model that is consistent with local CR spectra and inconsistent with the EGRET GeV excess.

引用

页数：6

共 26 条

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