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J/A+A/299/621 Is Sirius a triple star? (Benest+, 1995)
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Is Sirius a triple star?
Benest D., Duvent J.L.
<Astron. Astrophys. 299, 621 (1995)>
=1995A&A...299..621B (SIMBAD/NED Reference)
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ADC_Keywords: Stars, nearby; Binaries, orbits
Keywords: stars: {alpha}CMa - celestial mechanics - binaries: general -
low mass stars, brown dwarfs
Description:
Sirius has been discovered as double more than 130 years ago. From the
beginning of our century up to now, observational as well as physical and
dynamical indications lead to the hypothesis of the existence of a third
body in the system. In this paper, we present recent orbital analysis of the
binary Sirius A-B which, helped by numerical simulation of triple systems,
strengthens the idea for the triplicity of Sirius: a tiny star could revolve
in about 6 years around Sirius A. Finally, we discuss the possibility of
direct detection for this suspected Sirius C.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 30 22 Mean square Fourier analysis
table3 30 91 Mean square sine function analysis (all data)
appen 31 566 Observations of Sirius (1862-1979)
tables.tex 80 858 Tables to be processed by plain TeX
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Byte-by-byte Description of file: table2
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Bytes Format Units Label Explanations
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1- 5 F5.2 yr P Period
8- 14 F7.5 --- Ax Fourier transforms Ax of O-Cx
16- 22 F7.5 --- Ay Fourier transforms Ay of O-Cy
24- 30 F7.5 --- Axy Mean of Ax, Ay
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Byte-by-byte Description of file: table3
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Bytes Format Units Label Explanations
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1- 5 F5.2 yr P Period
8- 14 F7.5 --- Ax Perturbation amplitude Ax of O-Cx
16- 22 F7.5 --- Ay Perturbation amplitude Ay of O-Cy
24- 30 F7.5 --- Axy Mean of Ax, Ay
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Byte-by-byte Description of file: appen
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Bytes Format Units Label Explanations
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2- 8 F7.2 yr Date Observation date
10- 14 F5.1 deg Theta Position angle
15- 16 A2 --- u_Theta [?)] Uncertainty flag on Theta
17- 21 F5.2 arcsec Rho Separation angle
22- 23 A2 --- u_Rho [?)] Uncertainty flag on Rho
26 I1 --- o_Theta Number of observations
29- 31 A3 --- Name Observer name (1)
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Note (1): a = Aitken
arc = Archer
auw = Auwers
b = van den Bos
bar = Barnard
bar = Barton
baz = Baize
bdg = Bond
bea = Beal
ber = Berman
big = Bigourdan
boo = Boothroyd
brg = Boergen
brh = Bruhns
brn = Bruennow
brs = Brown
bru = Bruggencate
btn = Burton
btz = Bernewitz
bu = Burnham
chc = Chacornac
com = Comstock
cou = Couteau
da = Dawes
dic = Dick
doo = Doolittle
du = Duner
eas = Eastman
en = Engelmann
fat = Fatou
fbn = Brown
fen = Fender
fin = Finsen
foe = Foester
fox = Fox
frs = Frisby
fus = Fuss
g = gcb=Giacobini
gau = Gauchet
gld = Gledhill
gro = Greenwitch Observatory
hei = Heintz
hir = Hirst
hl = Hall
hld = Holden
hln = Holden
ho = Hough
hu = Hussey
hwe = Howe
i = Innes
j = Jonckheere
jef = Jeffers
jsp = Jessup
jw = Wilson & Seabroke
knp = Kniper
knt = Knott
kpz = Krumpholz
l = Lewis
ldb = Landbauer (?)
lng = Lau Ling Fang
loh = Lohse
lsl = Lassel
lv = Leavenworth
ma = Mason
mnl = McNeill
mth = Marth
nbg = Newburg
neb = Neff & Burnham (?)
nes = Newcomb
o = Olsen
ol = Olivier
ole = Olevic
pau = Pauscher
pav = Pavel
pec = Pechuele
pei = Peirce
pet = Peters
phl = Phillips
pop = Popovic
pou = Pourteau
prt = Pritchett
r = Russell
rab = Rabe
roe = Roe
rou = Rougier
row = Rowg (doubtful observation)
rut = Rutherford
se = Secchi
sea = Searle
she = Sheberle
ski = Skinner
sm = Smith
smw = Simonow
stg = G.Struve
stn = Stone
stt = Otto Struve
stv = Stevenson
stv = Hermann Struve
ttj = Tietjen
tut = Tuttle
upt = Upton
vbs = van Biesbroeck
vog = Vogel
vou = Voute
vys = Vyssotsky
wak = Walker
wal = Wallenquist
wam = Wamer
wat = Watson
win = Winlock
wnc = Winnecke
wno = Washington Naval Observatory
wor = Worley
wz = Wirtz
yng = Young.
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(End) Patricia Bauer [CDS] 28-Nov-1994