Handbuch der physik—Encyclopedia of physics

:BOOK REVI£WS

de:aft a : d ,a~x::~arv ~£4e~: a~d trait:h> t'£e t~e>~y ,:,i tge p ~ . e ~ e s involuted is a ~ : , adeq~a~eb/

i~act}ca~ ai.~ ,~! the x<:~~ m ~ a ~ee:e,~/~}e cxcg~t~,0n i~ a'ti~>r~de~ b y the chaptt~r On t h e b n b b i e c ~ , < a ~ ~ h t : ~ a:~h¢,4 ~:=,s~,,arvi2t y j~astiti~! i:atherly p r k l e I.~rh-ap~} givt~ a v e r y intermz:~g &~vc,>,~at :,{ I:!,e bistg:~.ry a,~:~i <::ev~:k:.pm,~nt ::~ vhJ,s w~nde:Hal a p p a ~ t u s , LR,

W~e p~,a:/~r p~e= :,.~a e~:h:it:itedb~' ~'mized m ~ l ~ i~terac~ing with dectroma~etJc fl.e!ds w~:~O~ *A,e3 a:v h!thect,', re,~ir~y ,~.5~:~a):~ ~s the O,sm~c ~meo ~[he pre~ent mom:gm~ph ~t~,,longsto

r ( ~ : i v v sm~:3,r~S ~4 t:~e ~is:~)a~:ement c~rre:nt p r ~ d e s a criterkm for separating t h e p r o c e e d s wh.~cb h.e ~ < u s ~ L~om t h e ~ : f rad:c~zs~r,:,momy~ w'hk:h h e excludes from con~iflerati~n. The :mier~y-~=g theoretical conC:elZ:5:~asare the~ th<~e of magneto-hydrod~mamic~A a n d t h e i r bxs::c s~mpiic~y~ ~s we:2 a~ ~ e ~ d e ~:%~: ~:4 tkeir a p # i e a t i o n s to cosmic pheru3merua~ a r e p e ~ # s t : y b r w u g t t ,¢,u: i : ::ds ~el:.wrU:.:m tr-e:z:t~~ ~ i c h ¢ii~:ingttishc~ i t . l l b y {mt-~randing didactic q~a,:ii:}:,< ':~e r,zt~h,::~r°si = ~ t e n , : e lk:r ca:.,. ~ . ~ i : a e n c e <>fe]~.tro~ag-~et~;: a::~ r~}+>,>a~i¢¢,!et:tec.ts resutting ~rom t h e d o m i n a n t ro:e o~ ~:Se f f ~ n e t i ¢ ~zeL~ i~ me oi 'zke p~t~a1:s in>.,, wkxch ke vniffh~ svamb!e axe also kindly pointed o u t to ~,~.~:- ! l : e ex~_>~:~cm :s s=*~ficiemz::y d e ~ E ~ t~ k*-easily accessible u) student.s; mad i t wi~6y ax-c,~d, ~,u~:~=~;.~ m a t h e m a t k a ! geve:i>pm,,:,~.-s w h k h w~:,~td o~scure t h e t r e n d o t t h e argxm:e:~: f.:~r:~;~:~, :.he r ~ a d ~ :~ ~'e~erre4 ~-¢~~::e apprcpriate papers° i ae ¢:m~ha.sis .s ~ , ~ a d e . ~ .t.v..oe =,>:,.,~ ~,,L~:general th{~rv is developed wi~h g r e a t elegance ~:~ C::e ~a.zs: ;~va,:~,,::**ihe )~<.~k ;it:.dz2~et~~:,>:'~:e,~sP;Cyappli~xt t,5* t h e origin ol t h e cosmic radiatJc~n s:::.ag pr~.~,a:~mer~ {s~n~*,:.~ c~,rw~z~ i:~r~mlnen,c~,, fiart.% M regions}, m a g n e t i c s t o r m s and :a~'.-..~.~e, azd ~he ion<~here~ A, ~h~ya~g t~e empirical d a t a are only q u o t e d t o t h e e x t e n t req~lired ,,.:.,~:~"~:~.~..~ v e t i ~ ~maiv~s,. e:ac,uah :s ~ i d t:¢~_cc,n x e v a ,:lear i d e a ot t h e phys~eat p r o c e s s ~ :~"~':':,~,+:,::d~ t~e#=~p h e ~ m e n : a . ~ zhis wa3% we are not ~.,ni:e pre_~em~d with a n a c c o u n t of ¢~smic ~ : ~ - ~ = s t::,f ~ m a t m g mtzCn,s:c J'atev?.sLbut al~, w::lah a n e a t and ~Col!C~ e x ~ t ~ o n oi t h e ~-@: c~:.'.n~ep~a ~ d ~ v ~ U l a e ~/~fich may- k-e c~f gr.ea~ help in t h e treatmetat ot related questi<~m.~ : ~ ~:~y ~-kTa.~:~m re,~,ratorv ~ = a l e . " :

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L.R.