宇宙線スペクトルとGeV-TeV diffuseemission

　　 柴田　　徹 ( 青学大理工 )

09/Jan/’10

(I) Internal consistency in CR observables:

◎ 1-ry rich components (p, He, . . . Fe)◎ 1-ry poor components (ultra-heavy elements)

◎ 2-ry stable components (Li, Be, B, . . . , )

◎ 2-ry unstable components (10Be, 26Al, . . . , )

◎ 1-ry (poor) electron components

--- Is there any signal of novel source in γ’s, e∓’s and p’s ? --- -

modeling check of CR propagation estimation of Galactic parameters

Astrophysics

◎ consistent or not ?

(II) Comparison between γ’s, e∓’s, p’s and other CRs

-

◎ if not,

● how much enhanced from those expected ?● how about an astronomical origin ?● how about an extragalactic contribution ? 　　　

● how about the uncertainty in calculations ? 　● how about the data quality in ⊿E, σ ?N

● how about . . . . . ? 　　　

Particle physics & Cosmology

-1) emissivity at r from astronomical origin

P ≡ p, He, . . . Fe ; e

key inputs for the numerical approach to γ’s and p’s:-

S ≡ γ, p

gas density, orphoton density

production cross-section

cosmic-ray density renormalized at SS

Astronomical origin or cosmological one ?

2) intensity at SS

emissivity at r’structure function for

gas density, orphoton density

i) ISM, ISRF

production cross-section

ii) cross-section

Astrop. Phys. 23(2005)510cross-section for -rays in p-p collision

cosmic-ray density renormalized at SS

iii) normalization

normalized CR density at SS

1) energy spectra for 1-ry components

D 　∝　

vR

Q 　∝　 R-

2.7-2.8= 0.3, = 2.4-2.5 ?or= 0.6, = 2.1-2.2 ?

contribution of CR’s other than proton

2) secondary-to-primary ratios　

3) antiproton-to-proton ratio　

Galactic plane

: halo thickness

isotope spread

◎　 　　 , normalized to

4) radionuclide abundance ratios

note 15-20% uncertainty in -frag.

Summary of Galactic parameters in our model expected from CR data nowadays available

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-How about γ’s and p’s ?compatible or incompatible ?

total energy-loss of electrons in ISM and ISRF: 　

ISM ISRF

difficulty in electron components

diffuseemissionin GeV-TeV region

[2] hadron-induced ’s 　

[1] extra-galactic ’s　

[3] electron-induced ’s