PHYSICS (GENERAL)
of ant!pod-l objects and the characteristic parameters of the Universe are deduced Comparison with observations yteld@: 1) ln
the cage of elliptical space the hypothesis of the existence of antipodal objecta ta not in contradtetion to Elnatein~ Friedman's cosmology {A > 0); 2) at present the direct verification of this hypotheste by means of both redshifts seeme to be tmposetble. (auth)
§1353
ORIGINS OF GALAXIES. Ommnes, R.
boratoire
de Thysique Theorique et Haute Energies, Orsay, France),
Natrre (Lomtonp, 223:
1349-50 Sept, 27, 1968),
It Was suggeated that, {ff mesona are bound states of nucleon —
artinucleon patra there might be a mpatial erparation of matter
and antimatter in the black -body radiation above a critical tem-
perature of about 359 MeV, leading to the production of separate
condensations of matter and antimatter, The evolution of sich
condensations during the cooling down of the Universe ip discussed, together with conmequences for galaxy and quasar formation, Differwnces betwoun the badronic and leptonic era and the
gravitation hecomes important and the annihilation preseute
prectpttates the gravitational feciation of conmdensations into
gtaxies, A galaxy may have a amalier secleus of antimatior
Urepped etihin it during thie process, and thie forms the bests
for the pecdlel of quasare
(UK)
51384
CHARGED RHELL& OF IDEAL FLU AND TAK
Prague).
Wiles, Z, Frintirich- Sailer-Late.. Jews, Mate
GRAVITATION AL COLLAPSE,
Raturwton, Rethe, 17:
Kuchar, Karel
(harlse Catv.
1FS-0 CED,
5273
Nearly all of the heavier elements seem to have been assembled
jucce@etve neutron captures occurring in two distinct proceeses the a (slow) procesa refers to neutron capture at @ rate
which is slow compared to the intervening beta decay, the r trap)
procera relere to neutron capture af @ rate which ie rapid com-
pared to the beta process I¢ le becoming increasingly apparent
that simple modela for galactic f-proceas nucleceyntheets are
inadequate Modern astronomical observations, which indicate
that the bulk of r-process aynthesis may have occurred early
in the Iife of the qajaxy, cannot be ignored Aecent data on the
flaal-genic xenon ia whitlockite from the & Severia meteorite
aleo place etringent Condittona on permissible models tor element
synthesis ft appeare (hat neither sodden nor continuous modela
far element-formation sre consistant with isotopic data nw
avatlable A more comples moxtel ia propoeed for the synihedis
of eclar system matertal in which the r-process fe sliowed to
oceur in three distinct modes a prompt’ eynthesta early in
the Bietory of We Galaxy, a ‘continuosa’’ rymtheeia whereby
F procese products are continucvely added lo he galsctie mix,
ond a ‘tset-mingte”' aynthocts which enriches the Soler vebule
with t-provess material etortly hetore the formation of the enjar
mater Calculating based an the preaent abundances of ureatum298, wewmtaum - 22%, and thortem- 222 and the meagured shundan oe
of tating 129 saat plutonium - 944 preavet when metearites “egan to
retain wore indicate Ghat the galactic age is between 40 ond 0 ¢
Dilliog yeare, with the ieltial “promg¢” eyethests accmmating for
AT wr 991 nf the Exal f prncens materiel ever proadured, the
“Leet minete ' syathesie contr theting beferean If end 17%. tet €
or OT eccarring ia be continous mete The time ieterval between
The remark that the tine! collspes of 9 boty cold presthly be
prevented by 6 relatively eenail ateount of charge is etustied theeTedically The motel ie an infinitety thin opie ttral set! frves
the lentation uf the polar soteie frou the gelacti¢ r process sed
tre wuert of seurn retentian ta metacetier we betuces 17°C ant ITF
wilies years tautiy
shell woudd reproerey the typo eerfary af Setentimesty a he
Panctery Phenemene
hormagrnrous charged eteal Past the particios of which ite tact
by preseurys oniy me the directions teegeetial te Gr abelt hte
qtee tations] ej obec tromapar ic
white
A eet of beytery cos.
Attions fot the gop icetiewal acd chert cnmagerti¢ Nelda 8 ty
cherged etril te dercred Fguatives af mation of the set! ary
then ‘ormujated
The touenery coercive ere eppd bed te the
bo mogeaeces Changed nphe race] ebelis, and the equations of
moting 200 imbeg rated te yield She lee of comerrvectes of sean rey,
which fe the metial poms for analyete of the onpull Serva wt atee
ond the collaper of the tertis & he comriwded that my the rte
however thigh # mey be, con stop the gree ftationas cottage of
the ebell below the anger Mordetroem rudime (Hew
SIS
MEAS RING THE RATE OF WUCLEOSYWTEERS
WITH A GAMMA-RAY DETECTOR, Ciaytan, Doeat D. Gast, of
Trnaretical Astramcesy, Cambridge, Eng.
Rice Univ, Howwtun,
Tex}: Mik, Joseye, Astrophys. 3.10 Lab sewe, 1908,
The gaovens-1ay lee ermitiod whee "MQ decays to “Fe are
ahw 2 to provide @ pheace fuk whack (a 0 eigmificast fraction of
the ciffess background near} MeV Rucceeetal mansurement
of the Hine profiles cam reveal buth the present and past retrs
of micleopynthests ie the Universe
(eathy
$1366
GESPRAL PURM OF TRE FINSTEIN EGIL ATINNS
FCR A BLANC HI TY PE IX URIS FRSE, Ryan. Micheel P. Jr,
(Catv of Maryland, College Pacto, J, Math, Phye. (NW. ¥.). 10
IAEA Sept poe,
The Einsteta equations for «general Bianctd type [IX universe
are presenied in a form sultabie fur mumerical olution, Asan
pxample, the complete equations for s coemotag with s pure fluid
stress tensor T, + tua ¢ Pig,, * uu | are slao given. (auth)
s)e
CONS? QUENCES OF VERY SMALL OLANKTARY
MAQRETIC MOUSNTS
MoCormen, AM; Kreme, J £
tenet Pate ARo Rewered Lob, Pole Alte, Calf),
Lock
“Seture (Lon.
mag. ITP 17Seet, 1, 1hER
Comabierethon ts given to pesathie changes in the wt mocanhere
of hen Torth and the planets aes ree.!t of the decay of the Ting wate Mpole ereaeet ducing reversats of the tagueetic field
Matmmet \ obser ations nivsred that Veme@ mms het a Ber
oT
very twee sere dipse moment, on ‘het ite atmoephere may +5 ow
We atyree which can de explsined by «rostan sad modification My
the colar sind Conshivration af the arveton af a planetary a! me
sphere hy Che oolat wind whee ter fipcls ttowrert ie near cer)
eueperete Chat Tittle of ms 6° ahenald Me theerved fir Venus or Mane
sbove Une bonoephe re, Uiat wahancement of the cosmic radiation
om the Earth cammot ocrur to any extent, and Unat the eclar radiant
ene ty might tecrease tm certam regions of the Farth atmo
ephe re, Ovretde the bow rho k on tte euaward aide of the mag
artopeses the solar wind will rapidly sueep away all tone formed
tnaide the magretcephere there witli be so solar-wind er «in
As the strength of a planets magnetic fieid decreases, the mag
netoperse moveg toward the planets surface, but at pretent the
Earth's magnetopause is well vuteide ile atenosphere
The max
imum valuw of the dipole moment uf Venus is two emall. * op
the salar wind .df the planets wurtsce During a reversal of the
Farth’'s magnetic field the eolar wind should compress the Farts
fonsaphe re to the ase atmospheric ptwesure as for Venus, and
sketch of the “clandurd ' spatial) homogeneous and isotropic
+ smatigical medela of the Universe that are currently in vogue
the Farth « atmoephe ce above 190 to 120 km would be above the
toner edge of the magnetopause. The ioncephere of Mars should
also he compresaed tu about $0-km altitude, According to the
dipole moment reversat curves the dipole moment raay te small
enough fur the mulac vind tu erode the Farth's atmosphere for
about one scolar cycle and the great vartability In solar atis ity
from one solar cy: ie Ct another means that effects on the Farth's
atmosphere may be vers ditterent from one reversal to another
An fon loss of the ot ter of to74 g ‘om? during the solar cycle ta
oud roemotogical modets of Blanchi Type tare (oveatigated in
detail, The primary goal va to undurstand the consequences of
expansion antaotropics tn the general relativiettc, hot big-bang
atmosphere, and acme possible mechanisme fat coupling the
$1357
BIANCHI TY PE-I COSMOLOGICAL MOVELS,
Kenneth Charles.
1969
255p,
Jacobs,
Passdena, Calif., California Inst. of Tech,,
Thesis.
A beief resiew of cbaervations of ccamological interest and a
fre given
thenty
Follows g this introductian anigetrople coamotogica
ofeageuteg,
The Finateln field equations with vanishing
gical constant, and Maxactl's equations, are used to etudy
‘he temporal evolution of anisatropic Bianchi Type T cosmutogtes.
These can ol yes are apatially homogenevis, but anisotropic;
weodthes have ne rotation Only c smulogles with the ‘flat,’
‘
Vag hal, Rareby Tipe B metric de? = dt? -alida! ~BYtidy! —
Tee
p58
~
tent
(CESS) ¢Ming, Abstr. Int., Br
Want 'soTOL FS AND THE HISTORY OF NUCLEO-
TNTHR A IN THE GALAXY, Pohenberg, CM, (Univ. of Calltha ta pier tay
Menor 16 212-15(Oct 10, 1969),
calculated, and most of the 0° would he effectively nemoved from
the Farth's atmoaphern, No significant increase in cosmic radi-
ation would occur, There might be removal of sume of the neutral
solar wind to the neutral atmosphere are discussed. The loss
of 1074 g/cm! of ions on # solar cycle may significantly alter the
Penetration and absorption of solar uv radiation, resulting ina
modification of the constituents, chemistry, temperature, albedo,
acale height and motion of the simosphere. It may be easier to
explain the structure of the atmosphere of Venus If the tons pro-
duced above 170 to 200 km are removed by the solar wind. Atomic
oxygen below the Venus magnetopause would be phototontacd and
lost to the solar wind. A similar argument could explain the
tatlure to observe atomic oxygen in the atmosphere of Mars.
{UK)
ow
Dec. 31, 1769