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J/A+A/299/621                Is Sirius a triple star?            (Benest+, 1995)

Is Sirius a triple star? BENEST D., DUVENT J.L. <Astron. Astrophys. 299, 621 (1995)> =1995A&A...299..621B (SIMBAD/NED Reference)
ADC_Keywords: Stars, nearby; Binaries, orbits Keywords: stars: αCMa - 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:
FileName Lrecl Records Explanations
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
Byte-by-byte Description of file: table2
Bytes Format Units Label Explanations
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
Byte-by-byte Description of file: table3
Bytes Format Units Label Explanations
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
Byte-by-byte Description of file: appen
Bytes Format Units Label Explanations
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)
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.

(End) Patricia Bauer [CDS] 28-Nov-1994
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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