Bibliography from research on interaction of solar flare particles with coronal plasm

Oster, L.

English

NASA Technical Reports Server

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frant :isZ 176 - 61 
https://ntrs.nasa.gov/search.jsp?R=19660022455 2020-03-16T21:16:10+00:00Z
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? r z c t i c a l l y  a l l  r e s u l t s  of the xork s i q p o r t e 2  s:r :;2Sil !Grant -;s; 176-1&. 
,ie.ve been p b l i . ; A e d  o r  are i n  t h e  Trocess of  p i a l i c a t l c n .  Tjus, onk; e 
very  b r i e f  su.zrmry-  i s  given i n  t h e  fo l lo i r in j ,  TJith re<erence t o  t n e  
p i b l i c a t i o n s  t h a t  origiriatel! under t h e  :rant and t h a t  are l i s t e d  i n  t h e  
X b l i o g r a p h y  a t  t h e  end of  t h i s  Fieport. 
One major e f f o r t  concerned the  passage of fast charged ? a r t i c l e s  through 
w e  coronal  plasma; on t h e  b a s i s  of an a v a i l b a l e  aechanism, a self-  
c o c s i s t e n t  malysis of t h e  i n t e r a c t i o n  of t e s t  ? , a r t i c l e s  with fie18 e l e c t r o n s  
i1,yg +rapE c ~ - r ~ ~ ~  c i i t  E l ! .  T+ _ "  1-o- L& -& I.--- U L C L A  ----*- OllVt l l l  AI -  "&-&% ii i-?SOLiSLiCE ttt tile t t iecirur i  
? lama frej;clency i s  ? re sen t  Tilich i s  of tlie gene ra l  for;: reyiirec? t o  
e x s l a i n  e.t least t h e  type  III r ~ . ~ i s  Zwsts frorl tl-ie s u i  [ 2 ,  31. @ a i t T t a t i v e  
a 2 p l i c a t i o n s  show t h a t  t h e  oSserved i n t e n s i t i e s  and half-widths  of t ype  I11 
b u r s t s  can be unaerstooa by 9 o s t u l a t i n g  t h e  passage of q u i t e  reasonable  
numbers of fast p a r t i c l e s  [4] .  
It ms found t h a t  a larze niiziber of kiizher harmonics can be genera ted  
i f  a a z n e t i c  f i e l d s  are ?resent  [ ? I ,  %ut  t n a t  t h e s e  megnetic f i e l d  e f f e c t s  
are q p a r e n t l y  no t  t n e  c r u c i a l  ,&enoiLenon i n  volved i n  t;r>e I11 r a u i o  events .  
S i E i l a r l y ,  a lengthy a n a l y s i s  of r e l a t i v i s t i c  e f f e c t s  sko-vieci t h z t  no s i g n i f i c a n t  
chacges occur i n  i n t e n s i t y  o r  s p e c t r m  behavior ,  i f  t h e  t e s t  ? a r t i c l e  sFeed 
approaches tire speed of l i g h t  [ 6 ,  '71. 
Severa l  g e n e r a l  p roblezs  of t h e  coronal  b a c k g r o u d  and of t h e  a c t i v e  sun 
have 3een d iscussed ,  i n  pa r t i cu la - ,  t h e  thermal  r a d i o  s?ec t ruJ  [3 ] ,  t h e  
c o r r e l a t i o n  benavior  of s o l a r  a c t i v i t y  [ g ] ,  t h e  eraission of fast  rlrotons 
5: f l a r e s  ta2ir z f f e c t s  on t a e  ;ioofi [IO:, aid the ;eo-1r:a<net,ic effects 
of Glaze a reas  Ell]. 
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Seve ra l  pzpers  were piblishec? t h a t  d e a l t  witk s o l a r  f l e r e s  rind 
tnemal i n s t a b i l i t y  poblerns .  Tile c o n t x t i v e  j e k v i o r  has been c l a r i f i e e ,  
bo th  i n  t h e  presence anU i n  t h e  absence of magnetic f i e l d s  [12, 131. liere, 
and i n  s d e t a i i e a  i n v e s t i g a t i o n  o? thermai  i n s t a ' u i i i i y ~  v f  tiie s v l a r  
atmosphere, f lares were t h e  n a j o r  a g q l i c a t i o n  [14] .  Tie in f luence  of 
magnetic f i e l d s  was t r e a t e d ,  and t2e r e s u l t s  app l i ed  t o  t h e  f o r n e t i o n  of 
pors inences  [l5, 161. F i n a l l y ,  t h e  sene ra1  fornzl is in  vas appl ied  t o  r e l a t e 2  
2roblerrs i n  as t ro?nys ics ,  namely, t h e  s t a b i l i t y  of t h e  i n t e r s t e l l a r  
g3s f17], t h e  fo rna t ion  of 2 l a n e t a r y  riebulae [ls], of s t a r s  i n  ;enera1 1103, 
and of E I1 reg ions  [ 2 3 ] .  
Pub l i ca t ions  o r i g i n a t i n g  under t h e  G r a n t  
[ 2 J Oster, L. , and ; f .  S. d!Llt.schuler, Z lec t ronazne t i c  'zciiation from ? l a m 2  
1- O s c i l l a t i o n s  , Tecan. Per.. S?-50 (1964) 
[ 5 ]  Al t schu le r ,  :":. 3., Cyclotron :iarnonics frorr Coulorib S o l l i s i o n s  i n  a 
::agnetic F i e l d ,  3ull. Axer. Phys. SOC. XI, 230 (1964) 
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Investigations of the interaction of solar flare particle with the coronal plasma Final report

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