Reet
Se
~~
wo
PULS‘ AS: OBSERVATIONS OF SPECTRA, Qoldft ML ftatifernta inet, of Teck, Pasadena). Seclence,
an
robaty 7) 2e7 ay,
eek et thee
anamic erecticg:gine of two of the recently discovered pul‘ting T*4i@ eouroes were Obtalned. The date provide the instantanomia apactum and the Ume-frequemey history of the signals
evee «a bandwidth of 3 Miia. (auth)
Wa ee Dea Lae
8443
STELLAR ROTATION. Eppe. Harland W. (Unie.
» Mat. Acad, Sci, U. 8, 66;
ot Callformia, Lom Angeles},
hi-* May 1768).
A perturbation techaique {a described for appronimating the
Intarsal etrugture of rotationally distorted stare, {M.0. .7.)
COSMOLOGICAL RED-GHIFT LAW FOR RADGO
.
Censir cofections are raised 60 bn the validity of the wrotyitems. rusunclogioal models om theoretical and ebeetvationsl
Qtruods. The probabls preeesce of cbecurating taterpetacttc
ee em. ete
raafter potnted owt Ty Ewicky, sugmedts the wmulleation of radia
magnitude s of optically ident ified radio fources to teat the red
aht~-megattede rin ohebet lived
gnedhrwridler
observations]
: wtatletion of red shih-
oe peer eee ee onene
Vol 22, Ma
NUCLEAR SCIENCE ABSTRACTS
Pha?
“?
1 Kae etn tee Os
-
14
D, (Wnty. of Manchester, Jodrell Bank, Fog.) Nature (Lond,
218: 1038-8 (June 16, 1968),
Strdies at 11 cm were extended to the four kee pore leora
Observations were made with the Mark 2 teicactpe at 2c Mur
in May 1068, Puleee were clearly detected from OP O96 sad Ftd
Their arrtval times agreed with those experted from companies
with observations at 406 MHz using establiahed le cergieo ng ot
For CP 0634 end 12928 only upper limits could te placer on 1 om
erolasion. Dati sre given for peak flux density and mean patie
energy, and romilis ere discussed. (1/15
3047
INTERSTELLAR MAGNETIC FIELD, Roger, 8. 5.
Momiston Radio
Gwuter, W, L, M,
Obearvatory, Pentioter, Can}:
Matere (London), 2181 10%6¢lune 15, 19°91.
An upper limtt of <2 « 10-7
to the interateitar magnetic
field in the Mreotion of the
CP 0980, derived from Farndny
rotation measurements, hag been reported (Smith, Natures 714
336 (1068})}, This value, for & component directed towarce the
Earth, ia much lower then previows estimates. It fe ales noted
that the eontributiog to the total retation from the Farth'y fone sphere implied by this Limit is toneiderably fower than would
he exported for the lowal time of the observations. In the prerert
communication it to guggected that the observations are compe! mie
wits ap interstellar field component of about 100‘ gacse, dire: tec!
towards the sverce and with a larger rotation contriburton from
the tono-phere, bh seemae
le to conclude that the trial
rotation rf +4 rwttane observed by Bmith could be made up of
+19 radians in the ioncephere and - 6 radians {0 interstellar
epece. This tatacpretation ts consistent with the cbaer vation
rach: sverces may be portage an indication that the red shifts
cf thease objects are net eattrely of cosmological origin. tantly
that the total radiation wae fn the same sense an the fone: cher! ~
covtribetiqn, and implies an interstellar magnetic fteld four
times larger than Smith's upper limit, (UK)
Mee
PRASE ‘NTEGRALS IN PULSATION THEORY OF
VAR'ARLE STARS, de Frettes Pacheco, J. A. Gmertiutp
Tasenlogies de Aeronautics, Sao Joee doe Campos, Spainy.
SOURCES, Greeff, Gy Rofft, G.: Vigottl, M.
An. aed
srasi], Clano,, 30: 413-iDec, $1, 1687).
A cothod of calceius of the pulsation constant Q, itn the pulsation theory of variable etars, is discunsed through the oa)Ccules
of the syetem phase tategrals. (amth)
mt
THR DOPPLER EFFECT AND ITS DISPLACEMENT
Tow: | THE Pr iN RATIONAL MECHANICS: APPLICATIONS
AD
CK RIMtN TST VERIFICATIONS. Letsean, Jean. Appl
Opt,
P92- 14% Tely 1968), (In Freach,
Sauer arte’ wward the red of the galaxy NGC 5668 for a
» bean of 21 om, ¢ mexaured tn radicastronomy with a
mear and x’ measured (a optics with « spectrograph, not being
equal, tt follows that the speed of light from a galaxy
te not
eusal tthet of a galaxy ¢ which is measared on Earth from *
vt-tunary soutce. The Doppler empérical formula cannot be
et) piained in classical mechanig¢ma aince it ta in contradiction
with ft. As for the theory of relativity & = ¢ from s postu’ uw
ead = 2. Hone considers the Universe represented cu. ‘ree‘coempional space (H}, cnon-Euchidian, with Fuciidiag comercion
»itged ina Alemannias four-dimension space (EF), a certain
universal time. ike that of an astronmmer, can be defined and ite
ccurae calculted is relation to this time. it will necessarily be
confounded with the atomle clock time, but & = o and 2’ « £:
the Doppler tormula la not accurate. However, © and ¢ as well
ae and: are eo close tp all the experiments carried out on Earth,
cen, when an artificial satelitte is used. that the errors mada
a using the Doppler formula are clearly tnfsrior to experimental
errore, (uth)
aT
PULSAR Io EFFECT, Dougiae- Hamilton, D, A.
(Harvard Coll, Observatory,
» Mass,), Nature (Loe
Hoe). 218: 1035 June 16, 19681,
* hag bean suggested that a small orbiting companion of a
peutren star might trigger pulees of radio emisrion, in a way
anylogsus to the Io effect in Jupiter. A satellite of mass m < 107g
was prcpored, to avold difficulties with gravitational radiation,
slong at Re 10 em to gives& period of the ordar observed in
peisges, Thin singemtd
ad, and it is
luded that
ar octhitic: mechaniar ‘oe polasre appeare to be exchkted, unless
he etl « suggestion of ponrediatiog states In free-fall motion fe
a sertad, EK
Ff Ke
MPs IN THE EARLY SOLAR SYSTEM,
Reynolds,
! “. ff n'e.of California, Berkeley), Nature (London), 2151
Ea TT VARY,
>
ty teerp the pheten! m-244xehen and fodine -129/
.
1
ate spark nde’ tie metaohites could confirm
rieetatecs to ot radloactivities were eynthePoets ge on
Te ay theta meegaas
fagthy GUN}
ae
TOR ATP ON Tr yg
temps me war ES AL
Sy pe teem RB Tem Sok bri Py Malek,
30671)
PRELIMINARY RESULTS OF PULSATING RATH
(inte. of Bolcgra),
Mature (London), 718: 1036-7 Dune 15, 194%).
A programme of obeervetions of pulears har been <'art.i
at 405 MHz using the N-S arm of the Northern Cross et
‘telescope. The long transtt time (4 min) in the antenna fan bes
allows observation of tundreds of pulgea at eas h irar
baboon
raalt!-beam arrangement enables rapid and presike decors. rast
of declination. Sources CP 0956, 1138 and 1919 Fave geo fer beet
observed, but pot CP 0834. Vatues of & are tabulated. A e‘ee:
cant difference wan apparent between the bebis tor of CP ire
and that of CP 2133 and 0950 with regard to the poiee heirt! in
a train of pulaes. CP 1919 showed traina of puleer ali wees
almost the same height, whereas the other two sources shee!
a saccedsion of markedly different pulses. An atrempt wey mes
to find some sort of correlation between the pesk values rf the
aucogesive pulses of a given source. CP 1919 amt ¢ 159 gee ra
indication of significant deviation from a aeque ws «f ranior
values, but CP 1133 showed some sort of reguler pattern, «7 ~
sisting of a fluctuation of the average pulse height with a pe
twice that of the pulse repetition. A prefiminary value aby we
for the ratio between the averag: peak vaiuc of Soren pulacy
and that of ‘‘odd'’ pulses waa 150 20.18. Ehis modulation weld
support the concept of “‘something’’ osrillating beth tn the furdamental mode and in some higher order mode t'K)
38472
GRAVITATIONAL REDSHIFT AND QUASI-STFULAR
OBJECTS. Hameon-Anttila, KA, (Unley. of Oulv, Finland),
Nature (Loudon), 2181 1040-1 ume 15, 1968).
The chief ertticiam of the gravitational interpretarion of the
red ahift {n the spectra of quasara je concerned with three as-
pecta — high electron denalty, differential gravitational rect abit,
and the smal! thickseus of the fine-emitting layer. There are
some phenomena suggeating that quasars are not at casmricgt: 3]
distancea, and it in interesting to try to conatrect modeta in a) ten
difficulties imposed by gravitational red ehift aca avoided The
mode! atudied by Greenstein and Schmidt (Astrophys J. 146-1
419640 Ja modified hy assundyg that quasars are relatively cool
hates having eruptive afmognieres, the erupulong rising ma dslly
from the surface and then falling back. lf the surface temperature
fag. Meleptt, low the entire chaerved spectrum originates fin
the emit. T2cer is which rapid nonthermal particles and gae
trasaen Penetrating each ober give an finpresaion of high elec -
tran temperature. The thickness of the emitting layar AR fs then
determined ant by ionization and excitation tmin by the average
helghi te which the eruptions are slle to cise. Lo La argamed thit
gvas ttation ¢a the main factor determining thia Relpe.
Ap ender -
of-magnitude entimate for AR ie obtatuad trom the ene ratccis
fi-isne equations of geodesics in Schwarceh d= ¢eter spony aps”
The aravicational tine broadening fa integers nt. f ret abife gt
Proportional to the aquare of the Dryi der cr
trp
Fo
ow pabbotes
deve te obeervent Dometic
taite
i wi
Bole deg
r
Cope eg Re
oe steed
tr ge
gta hy
'
.
hoes
yout.
wat
SoneST SG pene A
wba ne
was