J/AJ/106/1639 Speckle observations of binary stars (McAlister+ 1993)
ICCD speckle observations of binary stars. X. A further survey for duplicity
among the bright stars
McAlister H.A., Mason B.D., Hartkopf W.I., Shara M.M.,
<Astron. J. 106, 1639 (1993)>
=1993AJ....106.1639M 1993AJ....106.1639M
ADC_Keywords: Stars, double and multiple ; Interferometry
Abstract:
Speckle interferometric observations from the Canada-France-Hawaii
3.6m and Cerro Tololo 4 m telescopes are reported for 1123 stars
selected from the Yale Bright Star Catalogue in a continuing effort
to detect new binaries among the bright stars. Thirty-two previously
unresolved binaries have been detected, including companions to Xi UMa
and 15 S Mon. Measures of 107 previously resolved systems, many of
which resulted from earlier speckle observations, are also presented.
No evidence of duplicity within a specific (m,Delta(m),rho) window of
detectability was found for 984 bright stars. These observations
combined with two previously published surveys represent the
inspection of 2088 stars, representing 23% of the members of the
Bright Star Catalogue. Many of the systems discovered earlier have
shown significant orbital motions, and we present preliminary orbital
elements for six binaries. Eighteen other stars previously announced
as bright binaries have not been confirmed following numerous attempts
to do so, and we show that their apparently spurious nature is likely
due to the domination of the speckle transfer function by moderate
telescope aberrations under conditions of superb seeing encountered at
the CFHT in 1985. After deletion of these spurious systems, this
effort has resulted in the discovery of 75 new, bright binaries. We
consider some aspects of the duplicity frequencies among the diverse
spectral and luminosity classes represented in this sample. We
anticipate that the completion of a speckle survey of the Bright Star
Catalogue would lead to the discovery of at least 200 additional
binary systems with angular separations mostly below 0.20". Many of
these will have periods of the order of one decade and will be
accessible to complementary radial velocity programs of enhanced
precision.
See also:
I/107 : Washington Double Star Catalog (WDS) (Worley+ 1984)
J/AJ/106/352 : ICCD speckle obs. of binary stars. VIII (Hartkopf+ 1993)
J/AJ/106/637 : ICCD speckle obs. of binary stars. IX (Mason+, 1993)
J/AJ/108/2299 : ICCD speckle obs. of binary stars. XI (Hartkopf+ 1994)
J/AJ/111/393 : ICCD speckle obs. of binary stars. XII (Al-Shukri+ 1996)
J/AJ/111/936 : ICCD speckle obs. of binary stars. XIII (Hartkopf+ 1996)
J/AJ/119/3084 : ICCD speckle obs. of binary stars. XXIII. (Hartkopf+, 2000)
ftp://ftp.chara.gsu.edu/ : results from CHARA's long-term project
J/ApJS/131/561 : Double stars with PISCO at Pic du midi (Scardia+, 2000)
J/A+A/366/868 : Binary speckle measurements at Calar Alto. I. (Docobo+, 2001)
J/AJ/120/2638 : CCD speckle obs. of binary stars. II. (Horch+, 2000)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 78 44 Measurements of new binaries
table2.dat 78 116 Measurements of known binaries
table3.dat 14 697 Negative results from CFHT
table4.dat 12 286 Negative results from CTIO
table5.dat 48 18 Unresolved speckle binaries
table6.dat 80 18 Apparently spurious binaries
table7.dat 80 235 Observational history of new bright star
binaries
table8.dat 55 6 Preliminary orbital elements
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Byte-by-byte Description of file: table1.dat table2.dat table7.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS Epoch 2000.0 coordinates used as designator in
the Washington Double Star Catalogue I/107
maintained by Charles Worley at the U.S.
Naval Observatory (hhmmmSddmm, Cat. I/237).
14- 18 A5 --- HR Harvard Revised (catalog V/50) number
20- 24 A5 --- CHARA Newly assigned CHARA discovery number
(table1 and table7 only)
26- 37 A12 --- Discov Discovered (table2 only)
39- 42 F4.2 mag Vmag Visual magnitude from the Bright Star
Catalogue (BSC; Hoffleit, D. 1982,
see catalog V/50)
43 A1 --- n_Vmag [ RH] Visual magnitude code (1)
45- 52 A8 --- Sp MK spectral type from BSC
54- 55 I2 --- Ncomp []? Number of components, N, from the BSC and
incremented to reflect the new companions
(table1 only)
57- 65 F9.4 yr Obs []? Epoch of the observation as the fraction
of the Besselian year
67- 71 F5.1 deg theta []? Position angle of new measurement
73- 78 F6.3 arcsec rho []? Angular separation of new measurement
80 I1 --- Ref [1/5]? Reference number (table7 only) (2)
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Note (1): Visual magnitude code:
' ' = V on UBV (Johnson) system
'R' = HR magnitudes reduced to the UBV system
'H' = original HR magnitude
Note (2): References:
1) McAlister & Hartkopf (1988, Second Catalog of Interferometric
Measurements of Binary Stars, CHARA Contribution No. 2,
Georgia State University
2) McAlister et al. (1990AJ.....99..965M 1990AJ.....99..965M)
3) McAlister et al. (1992AJ....104..810H 1992AJ....104..810H)
4) Repeated from Table 2
5) New measurement
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Byte-by-byte Description of file: table3.dat table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
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1- 5 A5 --- HR HR number from the BSC
7- 14 A8 --- note Footnotes separated by comma and enclosed in
parentheses (1)
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Note (1): Also found to be single in:
(1) McAlister (1978PASP...90..288M 1978PASP...90..288M)
(2) McAlister & Hendry (1981PASP...93..221M 1981PASP...93..221M)
(3) Hartkopf & McAlister (1984PASP...96..105H 1984PASP...96..105H)
(4) McAlister et al. (1987AJ.....93..183M 1987AJ.....93..183M) (BSS1)
(5) Lu et al. (1987AJ.....94.1318L 1987AJ.....94.1318L)
(6) McAlister et al. (1989AJ.....97..510M 1989AJ.....97..510M) (BSS2)
(7) Mason et al. (1993AJ....106..637M 1993AJ....106..637M)
(8) Table 4
(9) Table 3
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- HR HR number from the BSC (cat. V/50)
7- 18 A12 --- Name Name
19- 21 I3 --- note [1/4] Reference number (1)
22- 25 I4 --- Meas Number of measurements
26- 29 I4 --- Neg Number of negative measurements
33- 48 A16 --- Comment Comments
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Note (1): Reference numbers:
1) McAlister & Hartkopf (1988, Second Catalog of Interferometric
Measurements of Binary Stars, CHARA Contribution No. 2,
Georgia State University)
2) Weigelt & Wirnitzer (1983, Opt. Lett., 8, 389)
3) McAlister et al. (1992AJ....104..810H 1992AJ....104..810H)
4) Isobe et al. (1990, Publ. Nat. Astron. Obs. Japan 1, 217)
=1990PNAOJ...1..217I 1990PNAOJ...1..217I
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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- 10 A10 --- WDS Epoch 2000.0 coordinates used as designator in
the Washington Double Star Catalogue I/107
maintained by Charles Worley at the U. S.
Naval Observatory (hhmmmSddmm).
14- 18 A5 --- HR HR number from the BSC V/50
21- 23 A3 --- CHARA CHARA number
29- 37 F9.4 yr EpDiscov "Discovery" epoch
42- 46 F5.1 deg theta Position angle, theta
50- 54 F5.3 arcsec rho Angular separation, rho
59- 60 I2 --- Nconf Number of attempted confirmations
63- 69 F7.2 yr Confmin Duration of confirmation attempts, minimum
73- 79 F7.2 yr Confmax Duration of confirmation attempts, maximum
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- HR HR number from the BSC V/50
6- 11 F6.2 yr P Period
12- 18 F7.3 arcsec a Semi-major axis
19- 25 F7.1 deg i Inclination
26- 32 F7.1 deg OMEGA Longitude of ascending node
33- 41 F9.2 yr T Epoch of periastron
42- 48 F7.3 --- e Eccentricity
49- 55 F7.1 deg omega Longitude of perihelion
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Origin: AAS CD-ROM series, Volume 1, 1993
References:
McAlister et al., Paper I 1987AJ.....93..183M 1987AJ.....93..183M
McAlister et al., Paper II 1987AJ.....93..688M 1987AJ.....93..688M
Lu et al., Paper III 1987AJ.....94.1318L 1987AJ.....94.1318L
McAlister et al., Paper IV 1989AJ.....97..510M 1989AJ.....97..510M
McAlister et al., Paper V 1990AJ.....99..965M 1990AJ.....99..965M
Hartkopf et al., Paper VI 1992AJ....104..810H 1992AJ....104..810H
Mason et al., Paper VII 1993AJ....105..220M 1993AJ....105..220M
Hartkopf et al., Paper VIII 1993AJ....106..352H 1993AJ....106..352H, Cat. J/AJ/106/352
Mason et al., Paper IX 1993AJ....106..637M 1993AJ....106..637M, Cat. J/AJ/106/637
McAlister et al., Paper X 1993AJ....106.1639M 1993AJ....106.1639M, Cat. J/AJ/106/1639
Hartkopf et al., Paper XI 1994AJ....108.2299H 1994AJ....108.2299H, Cat. J/AJ/108/2299
Al-Shukri et al., Paper XII 1996AJ....111..393A 1996AJ....111..393A, Cat. J/AJ/111/393
Hartkopf et al., Paper XIII 1996AJ....111..936H 1996AJ....111..936H, Cat. J/AJ/111/936
McAlister et al., Paper XIV 1996AJ....112.1169M 1996AJ....112.1169M
Mason et al., Paper XV 1996AJ....112.2260M 1996AJ....112.2260M
Fu et al., Paper XVI 1997AJ....114.1623F 1997AJ....114.1623F
Hartkopf et al., Paper XVII 1997AJ....114.1639H 1997AJ....114.1639H
Mason et al., Paper XVIII 1997AJ....114.2112M 1997AJ....114.2112M
Mason et al., Paper XIX 1998AJ....115..821M 1998AJ....115..821M
Hartkopf et al., Paper XXII 1999AJ....118..509H 1999AJ....118..509H
Hartkopf et al., Paper XXIII 2000AJ....119.3084H 2000AJ....119.3084H, Cat. J/AJ/119/3084
(End) Patricia Bauer [CDS] 27-Jun-1994