J/A+A/341/121 Visual binary orbits and masses (Soederhjelm 1999)
Visual binary orbits and masses post Hipparcos
Soederhjelm S.
<Astron. Astrophys. 341, 121 (1999)>
=1999A&A...341..121S 1999A&A...341..121S (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Binaries, orbits ; Stars, masses ;
Parallaxes, trigonometric
Keywords: stars: fundamental parameters - stars: binaries: visual -
stars: binaries: general - astrometry - catalogs
Description:
The paper gives orbits and masses for some 200 nearby visual
binaries, as derived from combining ground-based and Hipparcos
data. Table 6 gives identifications and notes, and points to
the detailed data in Table 1 (short-P systems with mass-ratio
from the Hipparcos observations), Table 3 (mass-uncertainty
below 10%) or Table 4 (mass-uncertainty above 10%).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 104 30 Astrometrically determined mass-ratios with
improved orbital elements and parallaxes
table3.dat 118 41 The most accurate mass-sums and orbital elements
for the systems without astrometric mass-ratio
table4.dat 118 139 Data as in table3.dat, but for the systems with
estimated mass-uncertainty above 10%.
table6.dat 56 222 Cross-identifications for the systems mentioned
in this paper
notes.dat 80 228 Individual notes
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP HIP (Cat. I/239) identifier
7 A1 --- n_HIP [b] b when two solutions for the object
8- 11 F4.2 mag Hp1 Primary Hp magnitude
13- 16 F4.2 mag m2-m1 Magnitude difference (secondary-primary)
18- 21 F4.2 --- M2/M1 Mass-ratio (secondary/primary)
23- 25 F3.2 --- e_M2/M1 Mean error for M2/M1
27- 32 F6.2 mas plx Parallax in present solutions
34- 37 F4.2 mas e_plx Mean error for plx
39- 44 F6.2 mas plx(HIP) ? Parallax in HIP (Cat. I/239)
46- 49 F4.2 mas e_plx(HIP) ? Mean error for plx(HIP)
51- 53 I3 % eps Total mass-uncertainty
55- 56 I2 % eps(p) Mass-uncertainty due to parallax
58- 59 I2 % eps(o) Mass-uncertainty due to orbit
61- 64 F4.2 solMass Msum Mass-sum
66- 67 A2 --- Note [mng ?] Note (1)
69- 74 F6.3 yr Per Orbit period
76- 82 F7.2 yr T0 Epoch of periastron
84- 88 F5.3 arcsec a Orbit semi-major axis
90- 92 F3.2 --- e Orbit eccentricity
94- 96 I3 deg i Orbit inclination
98-100 I3 deg omega Orbit argument of periastron ω
102-104 I3 deg Omega Orbit PA of node Ω
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Note (1):
m = previously known or suspected spectroscopic subsystem
n = note in notes.dat file
g = giant spectrum
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Byte-by-byte Description of file: table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP HIP (Cat. I/239) identifier
7- 8 A2 --- m_HIP Multiplicity index on HIP (71683/1)
9 A1 --- n_HIP [b] b when two solutions for the object
10- 14 F5.2 mag Hp1 Primary Hp magnitude
16 A1 --- l_m2-m1 Limit flag on m2-m1
17- 20 F4.2 mag m2-m1 Magnitude difference (secondary-primary)
21 A1 --- u_m2-m1 Uncertainty flag on m2-m1
23- 26 F4.2 mag V-I ? Combined (primary+secondary) V-I color
28- 32 F5.1 mas plx Parallax in present solutions
34- 36 F3.1 mas e_plx Mean error for plx
38- 42 F5.1 mas plx(HIP) ? Parallax in HIP (Cat. I/239)
44- 47 F4.1 mas e_plx(HIP) ? Mean error for plx(HIP)
48 A1 --- u_plx(HIP) Uncertainty flag on plx(HIP)
50- 53 F4.1 mag MHp1 Absolute magnitude of primary
55- 56 I2 % eps Total mass-uncertainty
58- 59 I2 % eps(p) Mass-uncertainty due to parallax
61- 62 I2 % eps(o) Mass-uncertainty due to orbit
64- 68 F5.2 solMass Msum Mass-sum
70- 73 F4.2 --- q ? Photometric mass-ratio
74 A1 --- u_q [)] Uncertainty flag on q
76- 77 A2 --- Note [nmg ?] Note (1)
79- 86 F8.3 yr Per Orbit period
87 A1 --- u_Per Uncertainty flag on Per
88- 94 F7.2 yr T0 Epoch of periastron
96-101 F6.3 arcsec a Orbit semi-major axis
102 A1 --- u_a Uncertainty flag on a
104-106 F3.2 --- e Orbit eccentricity
108-110 I3 deg i Orbit inclination
112-114 I3 deg omega Orbit argument of periastron ω
116-118 I3 deg Omega ? Orbit PA of node Ω
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Note (1):
m = spectroscopic subsystem
g = non-MS component
n = note in notes.dat file
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name Bayer/Flamsteed designation
16- 21 I6 --- HIP HIP (Cat. I/239) identifier
23- 32 A10 --- CCDM CCDM (Cat. I/211) identifier (hhmmm±ddmm)
33 A1 --- u_CCDM [)] Uncertainty flag on CCDM
35- 39 I5 --- ADS ? ADS identifier
41- 52 A12 --- Disc Discoverer designation
54 I1 --- Tab [0/4] pointer to Table 1,3,4 (1)
56 A1 --- Note [*] *: Note detailed in "notes.dat" file
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Note (1): 0 indicates that the object is not in tables 1, 3 or 4.
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP HIP (Cat. I/239) identifier
8- 80 A73 --- Note Text of the note
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Acknowledgements: Staffan Soderhjelm
(End) Patricia Bauer [CDS] 03-Dec-1998