i:^^ .-■y-j^ii
,',7>^ "■"-',■'" •*-
CIHM
Microfiche
Series
(Monographs)
ICMH
Collection de
microfiches
(monographies)
Canadian Institute for Historical Microreproductions / Institut canadien de microreproductior historiques
rar.f tr -.ij --"-ff.rr.; if.s. »•;
'1 :JfSni^'-ia
'mmiam f<r.iTfatftuiimmm ttrntjum m.msiiiv^nmasiss^met
Technical and Bibliographic Notes / Notes techniques et bibliographiques
The Institute has attempted to obtain the best original
copy available for filming. Features of this copy which
.nay be bibliographically unique, which may alter any of
the images in the reproduction, or which may
significantly change the usual method of filming are
checked below.
n
Coloured covers /
Couverture de couleur
I I Covers damaged /
Cou^'erture endommagee
Covers restored and/or laminated /
Couverture restauree et/ou pelliculee
D
I I Cover title missing / Le titre de couverture manque
I I Coloured maps / Cartes g6ographiques en couleur
n
Coloured ink (i.e. other than blue or black) /
Encre de couleur (i.e. autre que bleue ou noire)
I I Coloured plates and/or illustrations /
D
Planches et/ou illustrations en couleur
Bound with other material /
Relie avec d'autres documents
D
L'Institut a microfilm^ le meilleur exemplaire qu'il lui a
6t6 possible de se procurer. Les d«^tails de cet exem-
plaire qui sont peut-6tre uniques du point de vue bibli-
ographique, qui peuvent modifier une image reproduite.
ou qui peuvent exiger une modification dans la m6tho-
de normale de filmage sont indiques ci-dessous.
Coloured pages / Pages de couieur
Pages damaged / Pages endommagees
D
Pages restored and/or laminated /
Pages restaur^es et/ou pelliculees
Q Pages discoloured, stained or foxed /
Pages d6color6es, tachetees ou piqu6es
I I Pages detached / Pages detachees
jv/j Showthrough / Transparence
n
n
Only edition available /
Seule edition disponible
Tight binding may cause shadows or distortion along
interior margin / La reliure serree peut causer de
I'ombre ou de la distorsion le long de la marge
interieure.
Blank leaves added during restorations may appear
within the text. Whenever possible, these have been
omitted from filming / Use peut que certaines pages
blanches ajoutees lors d'une restauration
apparaissent dans le texte, mais, lorsque cela etait
possible, ces pages n'ont pas ete filmees.
/| Additional comments / Pagination is as follows: p. [157]-161.
Commentaires supplementaires:
Quality of print varies /
Qualit^ inegale de I'impression
Includes supplementary material /
Comprend du materiel supplementaire
Pages wholly or partially obscured by errata slips,
tissues, etc., have been refilmed to ensure the best
possible image / Les pages totalement ou
partiellement obscurcies par un feuillet d'errata, une
pelure, etc., ont 6te filmees a nouveau de fa^on a
obtenir la meilleure image possible.
Opposing pages with varying colouration or
discolourations are filmed twice to ensure the best
possible image / Les pages s'opposant ayant des
colorations variables ou des decolorations sont
filmees deux fois afin dobtenir la meilleure image
possible.
This item is filmed at the reduction ratio checked below /
Ce document est (ilme au taux de reduction indique ci-dessous.
10x
14x
18x
22x
26x
30x
12x
16x
20x
24x
28x
32x
p?^rpr7r¥7iswra^:Tw^«?3ssnfi2fp7t^
S2=v
^'S'^-^i
^'^m
"^mm
The copy filmed here h>is been reproduced thanks
to the generosity of:
National Library of Canada
The images appearing here are the best quality
possible considering the condition and legibility
of the original copy and in keeping with the
filming contract specifications.
Original copies in printed paper covers are filmed
beginning with the front cover and ending on
the last page with a printed or illustrated impree-
sion, or the back cover when appropriate. All
other original copies are filmed beginning on the
first page with a printed or illustrated impres-
sion, and ending on the last page with a printed
or illustrated impression.
The last recorded frame on each microfiche
shall contain the symbol — ^ (meaning "CON-
TINUED"), or the syrrhol V (meaning "END"),
whichever applies.
Maps, plates, charts, etc., may be filmed at
different reduction ratios. Those too large to be
entirely included in one exposure are filmed
beginning in the upper left hand corner, left to
right and top to bottom, as many frames as
required. The following diagrams illustrate the
method:
1
.
4
I
L'exemplaire film* fut reproduit grace i la
gAnArositA de:
Bibliotheque Rationale du Canada
Las images suivantes ont *t* reoroduites avec la
plus grand soin. compte tenu de la condition et
de la nenet* de l'exemplaire film*, et en
conformit* avec les conditions du contrat de
fllmage.
Let exemplairea originaux dont la couverture en
papier eet imprim*e sont film*s en commencant
par le premier plat et en terminant soit par la
derniAre page qui comporte une empreinte
d'impression ou d'i'lustration, soit par le second
plat, selon le cas. Tous les autres exemplaires
origiriaux sent film^s en commencant par la
premi*re page qui comporte una empreinte
d'impression ou d'illustration et en terminant par
la dernjAre page qui comporte une telle
empreinte.
Un des symboles suivants apparaitra sur la
derni^re image de cheque microfiche, selon le
cas: le symbole — ♦• signifie "A SUIVRE ". le
symbole V signifie "FIN ".
Les cartes, planches, tableaux, etc.. peuvent etre
film*s i des taux de reduction diff^rents.
Lorsque le document est trop grand pour etre
reproduit en un seul clich*. il est film* d partir
de Tangle sup*rieur gauche, de gauche k droite.
et de haul en bas. en prenant le nombre
d'images n*cessaire. Les diagrammes suivants
illustrent la m*thode.
2
3
5
6
wmmmmmmm
SS!
-mmm^^mm
MICROCOPY RESOIUKON TEST CHART
AMil u'd ISO TEST CMABI N„ ]
1.0
.25
«!28
32
1.4
IlilM
l|2_2
[2.0
ii
1.6
^ APPLIED IIVMGE Inc
PUBLIC'
(iV
Bominion !lsitrop{)]
\'i( re
Vol. [, :
THE ORBITS OF THi: Sl'KC
OF HOS
HY W. K.
This star (I'JOO a = 19'' 30 ■4'", 5 = +r>A
was found to be u binarj' from the double Vnu
nine plates were secured during the suninier,
present solution. These four, taken befoiv t
a phase in the orbit where the siiectru are partiii
Of the remainhig twenty-five all but f(jur h
the determination of the orbit rests on the wji
oji Seed 30 enmlsion with the sinf^le jirisin s]
central ray X42()0 of 25-7 ajigstronis per niillii
The spectra of the two conij)onents are
being barely sufficient to eiuible one to toll
set of lines belongs. The lines of both comp
dozen on the average were measured in each
the probable error of a plate for component 1
±2 1, and for the other ±2-5 km. per sec.
nearly e<iual, component 2 having a ma.ss Ui)
7C284- 1
'M:Jt^
'lINivfRMu '*.-^'i'^*
., ,r,HV'C
P
\r
- 1 V 198^
B!B -K)TH^-OUyJ^
UJCATIOXS
i>r iHi.
ropfjpgiral (^(jserbatorp
■ICIORIA
'ol. I, \<1. 1»
Sl'KCTKOSCOl'lC COMl'OXKNTS
■ lioss r>02v,
\\. K. IIAUl'EU
= +.j4M4', photographic magnitude G -3, type P'ij)
hie lines shown on the first plate made. Twenty-
imner, all but four of which have been used in the
)efore the ai)pr<iximate ])erioil was known, fall at
' partially sui)erposed and he... _ are unmeasurable.
four have both components measurable, so that
the wjuivalent of forty-ix plates. All were made
irism sjjectrograiih, wliich has a dispersion at the
T niillinietrc.
Its are <|uite similar, the difference in intensities
() tell from insjjcction to which component each
I comi)oj»'nts arc fuzzy in nature, but as about a
II each case, a fairly reliable result was obtained,
ncnt 1 (the one with the more intense lines) being
r see. The masses, as may be expected, are very
iiss 0-'.»8tJ times that of component 1.
1A8
PUBLICATIONS OF THE DOMINION ASTROPHYSICAL OBSERVATORY
In the tublo of ohsorvations following the i)hases arc reckoned from the final value
if iHTJastron pas>aKc u>iiin the corrected period 7 ti:{s:5 days.
OaSKHVATIO.NS Ol BOSS 5()2tl
I'IhIi-
Dulr
Julian Dal)'
I'lia-K-
NiinilMT
I'.tiit
■J17J
.lulv 21
2.422.ltil-7!iS
t) 2.10
•J4HH
'* 22
11.2 7!l7
7 220
■2-,>s
•' 2il
lljti 781
:t r>7:,
■irM
•• 27
Iti7 ,H(HI
4 ,-.!M
■.'.-.54
" 28 . . ^
I(i8 7.VI
.") .".44
■iii.s;j
\MK 14 ...
l8.-i 7.H2
7 2<.Kt
•J71ti
•• 13
1811 81(1
1198
J7:«t
" 18 .
180 t;87
;t -.')«)
■27:*)
•• 19
l(M)-7:«t
4 009
■-•786
" 21
102 724
ti oo;i
2H(I1
•' 22 .
HU 7()4
7 • nKi
28 If)
" 24
19.") 747
1 987
287;i
.Sept. 1
2(«-7:tl
2 :i32
2H81
.
208 ^iC)
7;)37
2888
1
200 ti'.U
0.")8
2<H)8
it
211 t)t>8
2 W2
2<.LM
" 12 . .
214 titi4
.") 028
2<t4.t
" 14 ..
2lt) tiO.J
7 0.")9
2H8()
•' 10.. .
218 OtM)
1 980
:ti)i;i
" 20
222 7:A)
070
:to:i7
" 21
22:i tUiti
992
:<o:is
" 21
22:! (180
7 Ol.")
.toiiri
■• 2;} .
22.") t)7:!
1 :ioo
:U42
Ol'l. ti
2;i8«0«»
0.')8
:U77
•• 14
2.422,246 .59:)
7 1)05
Lines
(>-(•
4
-0-2
10
+ 20
a
fO 3
10
11
+ 4-7
'i
-0 .5
:i
-0-8 '
<'i)ni|Kiiii'iit 1
\V1
4- 2") 7
t-l(Hi()
- 40 2
- 20 .")
- 14
f 110
- .V) 7
- :)0 3
- 18-7
+ 54S
+ 87-.")
- Ot) 8
- Wl 8
+ 110 1
- 47 8
- 01-3
- 10 .".
+ 72-8
- 70 8
+ 2."ill
+ 80-4
f 82-8
72 .")
+ ,")5-3
+ 88 3
('uni|iunent 2
Vi-1.
LiiiM U-C
21
10
10
10
4
20
3
10
19
11
13
14
1.")
It
10
12
-0 ,")
-0-8
+ 4 .5
+or)
+34
-2 1
+.")0
-I
+ 0.
+ r
-0
-4
-0
-3
+ 1
- 75- 1
-1251
+ 2,')
-137 7
+ lB-5
i- 23 2
- 87-2
-117 4
+ 44 3
+ 390
-137 7
+ 121
+ 30
-107-7
+ 401
- 57 5
-110-7
-126 7
+ 42-5
- 95 2
-120 3
I
9
5
3
14
10
8
7
13
3
8
9
9
S
11
13
13
14
12
-113
+ 10 9
+ 9
+ 1-
- 1
+ 4-
+
+ 3-
+ 3-
+ 3-
+ 1-
- 2-
+ 3-
- 1
-
- 1-
+ 3-
- 6-
+ 1-
- 3
+ 0-
- 14
The period wa.s obtained early in the observations, thus avoiding to a large extent
useless plates at phases where the lines would be hopelessly mixed. In addition, this
knowledge of the general form of the curve made po.ssible the securing of separated spectra
close to the crossing points by narrowing the collimator slit from its usual width of
().")1 mm. Nicely resolved lines were secured where the difference in velocity was of
the order of 70 km. per sec, and in one case a difTerence of tjO km. gave lines clearly double
in the violet region.
Krom the jireliminary elements gi\en later observation etjuations were built up ac-
cording to the notation of l.ehmann-Filhes, modihed to suit cases of double spectra*,
and a least — .s()uares solution effected. .\s no early observations existed whereby the
preliminary value of the period might be corrected, this term was also included in the
sdhition. This i)ractically necessitated treating all the observations separately, and only
wht re they were taken on one night or where they fell on a smooth part of the curve
was this principle dei)arted from. In this connection the four plates showing single lines
' Ddruiiiioii t Kisi I viitiin I'liljlii-atioiis, Vol. I, paKi- 327.
<l»SKH\ AlluNS OK HOS.X .ifCti
IM
unci which ^roui) thcinx-lvrs >viiiiiii'tii<'iilly fthmit one of thf cniNsinn p<iiiit> wcro foriiied
into onr iwirriml pliK'c. Hy iiiakiiiK ihr following traiisforiiiatiims a srt of Ha (if)s('r\'ati()ii
p(Hiations involvin); the 7 iiiiiviiowns 7, Ki, K., r, ui. V and T wrrc t)uilt iq). TJir weights
of each arc as given in the last column.
X = «7
y = «K,
7. = SK,
n = ".I2 ««
V = ifj «U)
« = |;M':ii()4l f> I'
1 = |2ii:w-)| «T
OHSlKV AIIUN IX^I AlloNS l<i|< !»( tss .VL'<i
1 1
(»(l(l.\
+
431 y
(N)07,
I)h2u
<-
.WUv
(I«>4u
3771
-2 .HXl-O
1'.
\
(100
-^
.•.02
mm
-1
lit
+
■.-.K2
t-
173
412
f 4 •2(N)
4
3 1
000
+
7tiO
(XX)
- 1
447
+
.•ill
-i-
0»>))
-
.544
-IKN)
16
4 1
000
4-
Sl<t
()00
-1
tHO
-t-
4H4
-
•2<X)
-
.572
4-3 S(X)
16
."i 1
000
+ 1
122
(NX)
~1
224
-t-
■248
-
I3t
-
■66H
4-2 400
2 .5
f. 1
000
+ 1
134
(XX)
-1
101
+
234
-
■2H7
-
(Mis
- '2(X)
12
< 1
000
+1
207
(NN)
420
-
030
+
21.-.
-
.52.1
-2 0(X)
1
H 1
(K30
+ 1
347
(NN)
■t-
002
-
.•().■)
-t-
(XX)
.3.33
-2'»X)
1 1
<t 1
oon
+1
Mi
(NX)
i
417
-
31.i
-
(X)s
KMt
-0 <XX)
20
in 1
000
+ 1
1S4
0(N)
-1-1
131
0S7
-
13t>
+ 1
■363
4-5''200
10
II 1
000
+
•)MH
(NX)
-t-
470
-1
10.5
f
24.-.
+ i
'8S3
4-1 700
11
I'.' 1
000
-
3M
(NX)
"1
213
-1
(XW
f-
030
+
6.W
-3 SOO
3
13 1
000
-
412
(XX)
-I
003
-1
mi
KX)
+
.587
4-1'SOO
.5
14 1
(KX)
-
KU>
(NX)
-r
■ xw
-
■470
-r
007
+
ail
-1 700
14
!.■) I
000
-
603
(NN)
-r-
'MW,
-
171
-
(XH
-
•071
-2 »X)
20
l)> 1
000
-
.541
(NN)
+ 1
mi
-1-
(XI7
-
(NM
-
102
-2'(XX)
1 .5
17 1
000
-
•3.W
(XX)
■f
'770
+
2S1
-t-
037
-
141
4- 'H<X»
6
IS 1
(KM)
+
■023
(XN)
-
()7)i
+
.520
-t-
041
-
•22.5
4-3 .VX)
2 5
19 1
000
'(XX)
-
431
+
■ 0«2
-
■.">hO
-t-
(X'.4
+
'377
4-1 -OIX)
.5
L'O 1
000
0(MI
-
• ,V)2
+ \
114
-
■.Vi2
-
173
-f-
412
4 12 7(X)
1
21 1
(XK)
(KX)
-
7)10
+ \
447
-
.-.u
-
(N'lO
-(-
.544
4-1 0(X)
It
'»'» ]
(XX)
(MX)
-
Sl<)
+ 1
4M)
-
4S4
t
2(N)
-i-
' .572
-t-3')XN)
11
•23 1
(XM)
'(XX)
-1
122
+ 1
224
-
■24S
-1-
134
-t-
(Wis
4-2 ^(X)
20
2» 1
0(K»
(NX)
-1
134
+ 1
101
-
231
-^
2S7
f
• (X.S
- ■:«)(.
12
2:> 1
(XX)
'(XX)
-1
2!)7
+
420
+
■030
-
■21.5
4
.5'23
~-l().-.(N)
5
2I> 1
0(X)
(XN)
- 1
347
-
()02
+
•20.-.
-
(NX)
-t-
'333
-2.'XN)
(10
27 1
000
(XX)
-1
304
-
417
+
■31.->
+
■(N)S
4
• KM.
-4 (NN)
1 3
2H 1
(XXI
■(XX)
- 1
IS4
-1
■131
-t-
'OH-
+
■136
-1
3(i:t
-7H0O
10
20 1
0(X)
(XX)
-
'9K(i
-
470
+ \
IO.-.
-
24.5
-1
■Ks:i
4- ■7(N)
30 1
000
000
+
3K1
■ 1
213
+ \
(Hi.S
-
030
-
(•..V)
4-7(XX)
3
31 1
000
(XX)
4-
412
-t 1
()03
+ ]
'()3t
+
■KX)
-
■.5S7
4-.5-2(N)
5
32 1
000
(XX)
-*-
■(>«)
-
■ r,m
+
'470
~
(Xi7
-
a3i
- SOO
13
33 1
000
(XX)
-(-
603
-
066
+
■171
+
003
4-
071
-3 000
15
34 1
000
000
-+-
.i41
-1
024
-
007
+
004
4-1
024
-.5 SOO
13
35 1
000
000
+
356
-
779
-
■281
—
037
4-
141
-7^aoo
5
00925710
:i}M^^z^:ia'^.U:.
m^i^W^aF^-^.:
ton
'■'""<M.oN>u, ,„, ,H.M,M,,N Vsn,.,.„>,,„.M .....MnNTuia
N'>ll\l \l K^i MHiN-
!l K(MI,\
f II :.»iy
IN (iStl
!i iii:.z
• It IK Ml
1 1 S(l<i
- II (7011
-7 .Mi'.i
t 1 (i.s:{\
II III.",
t II (iMtw
-II 471
-11 til!»
- II li'.iJl
- •-' ;{7ii
- II !I7J
- S .")(M(.
til 1)72
-f .")! I.V.I
;!s fiti."i
-Ml .■.s'l
1 1 nJ7
^ J ll.'S
(1717
II filil
' i:{ .Nl
-II n;
f 1 :<r>i)
IN !l| 1
- 7 (171
- 1 .-.IS
t 7 ."(S!!
-lac-OS wa.. ro.i„.....l fL ,,7 ,.. !; -- T ^^'"""^ "' ^'"^ ^'^^^''^-'^•■^ ^^ ^^e normal
to ;5S(;. iihout 27 j)or cent.
• I
"-Z- J.
1 -fr^
'frm.^
.;|•^
^
iiHSIIU \I|<i\,s (»K MOSS vc..,i
TAIU.K lie I.I.IMCNT.S
Irti
-
M
ihi-nt
I'r. Iimiiiarv
Kimil
IVtukI
l.i'i iitrii i)\
!•
7 n.i:>.iav.
7 •ViS.Jilayx ' («)l1),l.ivn
l^niKllildc iif :i|>M'
I'onKil iiilr ,)f ap^r
\ iliMllv iif aNxtrm
r\
K,
K .
li; .'1. km i
!»•.• km 1
•>: km
•M) :M-.'.'..'()I 1(1.-,
.■)-'7 i (Ilk)
••i" 7j . ir «i
-••.tr 7« 1 (I'm
1.1 .VI km. • (1 ,;ti km
■"omi-iimpliiiiilr' Ml
UIM
liirv
X'i M km. • (1 ti>l km
I'rriiifilrMn |i,i.«j.iiRp
Sfinj riKijr.r axiH
1
.1. tin 1
•M rjkm • (1 71 km
1 1> j.ii-.',j<ii .ms • (1 (XI7
H,(M-.(l«»rikni.
\l(vs primary
MiMK wrondary
Mil xin 1
ni: Hill i
1
1
s,i.tt,n«iokTii.
1 H.M O
1 827 O
— - -— ^
Thr „„|,1, ,h„wn „p„.so„„ ,1,, |i„„, ,.|.„„.„„. „„ ,,„„|,„„„„ ,„„,. |,.| ,^
Domi
inion .\.sfrophvsiral Obsprvaforv,
Vicffiria, B ('.
Nov. 7, 1!M!».
tej ^.:.'»^ei>-i - -^rar..
..;„!r^ -ivi i
^-■«;:'
i'*r, rv->;tr