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J/A+AS/112/291 VRI photometry of wide double stars (Sinachopoulos+ 1995)
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VRI photometry of wide double stars with A- type primaries.
Sinachopoulos D., Cuypers J., Lampens P., Oblak E., van Dessel E.L.
<Astron. Astrophys. Suppl. Ser. 112, 291 (1995)>
=1995A&AS..112..291S (SIMBAD/NED BibCode)
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ADC_Keywords: Stars, double and multiple ; Photometry, VRI ; HR diagrams
Keywords: stars: binaries: visual-photometry: Hipparcos
Description:
We are presenting VRI photometry of 93 wide visual double stars having
late B- or A- type primaries, taken from the Annex of Double and
Multiple Stars of the HIPPARCOS Input Catalogue. Spectral types have
been estimated for most of the primaries and for the majority of the
secondaries. 40% of them probably have common origin components, for
which we calculated photometric parallaxes and some orbital values
estimates.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 72 188 VRI photometry of A-type double stars
table2 18 28 Relation between Spectral type and (V-I)_0_
index
table3 28 34 Computed versus literature spectral types of
34 primaries
table4 86 93 Astrophysical parameters
tables.tex 116 599 LaTeX version of the tables
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See also:
I/107 : WDS (Washington Double Star)
I/196 : HIC (Hipparcos Input Catalogue)
Byte-by-byte Description of file: table1
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Bytes Format Units Label Explanations
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2- 11 A10 --- IDS IDS (Eq. 1900) code of the double star as
listed in WDS (Worley and Douglass, 1984)
13- 21 A9 --- HIC Hipparcos Input Catalogue or
Durchmusterung number
25 A1 --- m_IDS Multiplicity index on star name
31- 36 F6.3 mag Vmag V magnitude
38- 41 F4.3 mag e_Vmag rms uncertainty on V magnitude
43- 48 F6.3 mag V-R V-R color index
50- 53 F4.3 mag e_V-R rms uncertainty on V-R
56- 61 F6.3 mag V-I V-I color index
63- 66 F4.3 mag e_V-I rms uncertainty on V-I
71 I1 --- o_Vmag Number of measurements
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Byte-by-byte Description of file: table2
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Bytes Format Units Label Explanations
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2- 4 A3 --- Sp Spectral type
6- 11 F6.3 mag V-Imin Minimun V-I color index
13- 18 F6.3 mag V-Imax ? Maximun V-I color index
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Byte-by-byte Description of file: table3
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Bytes Format Units Label Explanations
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2- 11 A10 --- IDS IDS (Eq. 1900) name
13- 15 A3 --- SpCal Calculated spectral type
17- 28 A12 --- SpLit Literature spectral type
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Byte-by-byte Description of file: table4
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Bytes Format Units Label Explanations
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2- 11 A10 --- IDS IDS (Eq. 1900) name
13- 24 A12 --- ASp A component spectral type
26- 30 A5 --- BSp B component spectral type
32- 36 F5.1 arcsec rho Angular separation
38- 40 I3 pc Dist ? Minimum value of the distance
45- 47 I3 pc e_Dist ? rms uncertainty on Dist
49- 52 F4.1 10+3AU Tan.Sep ? Tangential separation component
59- 61 F3.1 10+3AU e_Tan.Sep ? rms uncertainty on tangential separation
63- 66 I4 10+3yr P ? Minimum of the orbital period
71- 73 I3 10+3yr e_P ? rms uncertainty on P
75- 78 F4.2 km/s Vorb ? Maximum of orbital velocity
83- 86 F4.2 km/s e_Vorb ? rms uncertainty on Vorb
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Courtesy: Dimitris Sinachopoulos <Dimitris.Sinachopoulos@oma.be>
Referecences:
Worley and Douglass, 1984, =Catalogue <I/107> (WDS)
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(End) Patricia Bauer [CDS] 09-Feb-1996