The diffuse neutrino flux from the inner Galaxy: Constraints from very high energy gamma-ray observations

被引：13

作者：

Gabici, Stefano ^{[1
]}

Taylor, Andrew M. ^{[2
]}

White, Richard J. ^{[3
]}

Casanova, Sabrina ^{[2
]}

Aharonian, Felix A. ^{[1
,2
]}

机构：

[1] Dublin Inst Adv Studies, Sch Cosm Phys, Dublin 2, Ireland

[2] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

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

来源：

ASTROPARTICLE PHYSICS | 2008年 / 30卷 / 04期

关键词：

Diffuse emission; Galactic; Neutrinos; Gamma-rays;

D O I：

10.1016/j.astropartphys.2008.08.005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently, the MILAGRO collaboration reported on the detection of a diffuse multi-TeV emission from a region of the Galactic disk close to the inner Galaxy. The emission is in excess of what is predicted by conventional models for cosmic ray propagation, which are tuned to reproduce the spectrum of cosmic rays observed locally. By assuming that the excess detected by MILAGRO is of hadronic origin and that it is representative for the whole inner Galactic region, we estimate the expected diffuse flux of neutrinos from a region of the Galactic disk with coordinates -40 degrees < l < 40 degrees. Our estimate has to be considered as the maximal expected neutrino flux compatible with all the available gamma-ray data, since any leptonic contribution to the observed gamma-ray emission would lower the neutrino flux. The diffuse flux of neutrinos, if close to the maximum allowed level, may be detected by a km(3)-scale detector located in the northern hemisphere. A detection would unambiguously reveal the hadronic origin of the diffuse gamma-ray emission. (C) 2008 Elsevier B.V. All rights reserved

引用

页码：180 / 185

页数：6

共 30 条

[1] Discovery of TeV gamma-ray emission from the Cygnus region of the Galaxy [J].

Abdo, A. A. ;

Allen, B. ;

Berley, D. ;

Blaufuss, E. ;

Casanova, S. ;

Chen, C. ;

Coyne, D. G. ;

Delay, R. S. ;

Dingus, B. L. ;

Ellsworth, R. W. ;

Fleysher, L. ;

Fleysher, R. ;

Gebauer, I. ;

Gonzalez, M. M. ;

Goodman, J. A. ;

Hays, E. ;

Hoffman, C. M. ;

Kolterman, B. E. ;

Kelley, L. A. ;

Lansdell, C. P. ;

Linnemann, J. T. ;

McEnery, J. E. ;

Mincer, A. I. ;

Moskalenko, I. V. ;

Nemethy, P. ;

Noyes, D. ;

Ryan, J. M. ;

Samuelson, F. W. ;

Parkinson, P. M. Saz ;

Schneider, M. ;

Shoup, A. ;

Sinnis, G. ;

Smith, A. J. ;

Strong, A. W. ;

Sullivan, G. W. ;

Vasileiou, V. ;

Walker, G. P. ;

Williams, D. A. ;

Xu, X. W. ;

Yodh, G. B. .

ASTROPHYSICAL JOURNAL, 2007, 658 (01) :L33-L36

[2]

ABDO AA, ASTROPHYS J UNPUB

[3] Discovery of very-high-energy γ-rays from the Galactic Centre ridge [J].

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 .

NATURE, 2006, 439 (7077) :695-698

[4]

Aharonian FA, 1996, ASTRON ASTROPHYS, V309, P917

[5]

Aharonian FA, 2000, ASTRON ASTROPHYS, V362, P937

[6] FLUX OF ATMOSPHERIC NEUTRINOS [J].

BARR, G ;

GAISSER, TK ;

STANEV, T .

PHYSICAL REVIEW D, 1989, 39 (11) :3532-3534

[7] Turbulent amplification of magnetic field and diffusive shock acceleration of cosmic rays [J].

Bell, AR .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2004, 353 (02) :550-558

[8] Diffuse radiation from cosmic ray interactions in the galaxy [J].

Berezinsky, V. S. ;

Gaisser, T. K. ;

Halzen, F. ;

Stanev, Todor .

ASTROPARTICLE PHYSICS, 1993, 1 (03) :281-287

[9]

CANDIA J, 2004, J COSM ASTROPART PHY, V11, P2

[10]

DERMER CD, 1986, ASTRON ASTROPHYS, V157, P223

← 1 2 3 →