J/AJ/139/743 Speckle interferometry in 2008-09 (Tokovinin+, 2010)
Speckle interferometry at the Blanco and SOAR telescopes in 2008 and 2009.
Tokovinin A., Mason B.D., Hartkopf W.I.
<Astron. J., 139, 743-756 (2010)>
=2010AJ....139..743T 2010AJ....139..743T
ADC_Keywords: Stars, double and multiple; Interferometry
Keywords: binaries: general
Abstract:
The results of speckle interferometric measurements of binary and
multiple stars conducted in 2008 and 2009 at the Blanco and SOAR 4m
telescopes in Chile are presented. A total of 1898 measurements of
1189 resolved pairs or sub-systems and 394 observations of 285
un-resolved targets are listed. We resolved for the first time 48 new
pairs, 21 of which are new sub-systems in close visual multiple stars.
Description:
The observations reported in this paper were obtained with the
high-resolution camera (HRCam)-a fast imager designed to work at the
SOAR telescope, either with the SOAR Adaptive Module or as a
stand-alone instrument, on 2008 Jul 14-18, Aug 8 and Oct 6-8 and 2009
Apr 4-6.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 113 1899 Measurements of known and new binary stars
table5.dat 73 394 Unresolved stars
table6.dat 85 103 Newly resolved binary and multiple stars
notes.dat 80 1146 Notes to individual systems
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2012)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- WDS WDS designation (1)
12- 19 A8 --- Disc Discoverer designation
21- 25 A5 --- Comp System components
27- 37 A11 --- OName Other name
39- 47 F9.4 yr Epoch ? Epoch of Observation (Besselian year)
49- 50 A2 --- Filt Filter used in observation (G2)
58 I1 --- Num Number of observations
60- 64 F5.1 deg PA ? Position angle θ
66- 69 F4.1 mas sigt Tangential error ρσθ
71- 76 F6.4 arcsec rho ? Separation ρ
78- 81 F4.1 mas e_rho Radial error σρ
83- 86 F4.1 --- Dm ? Magnitude difference between components
88 A1 --- f_Dm [:*] Flag on Dm (G3)
91- 95 F5.1 deg (O-C)PA ? The O-C position angle residual
97-102 F6.3 arcsec (O-C)Sep ? The O-C separation residual
104-111 A8 --- Ref Reference (1)
113 A1 --- Note [*] Note flag, in notes.dat file
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Note (1): The bibliographic references are available at:
http://ad.usno.navy.mil/wds/orb6/wdsref.html
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS WDS designation (G1)
12- 21 A10 --- Disc Discoverer designation
23- 27 A5 --- Comp System components
29- 38 A10 --- OName Other name
40- 48 F9.4 yr Epoch ? Epoch of Observation (Besselian year)
50- 51 A2 --- Filt Filter used in observation (G2)
59 I1 --- Num Number of observations
61- 64 F4.2 mag Dm0.15 Maximum magnitude component difference at 0.15"
66- 69 F4.2 mag Dm1 Maximum magnitude component difference at 1"
71 A1 --- u_Dm1 [:] Magnitude difference flag (1)
73 A1 --- Note Note flag, in notes.dat file
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Note (1): the colon (:) indicates noisy data, with detection limit
(max. magnitude difference) often over-estimated
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Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS WDS designation (G1)
12- 18 A7 --- Disc Discoverer designation
20- 24 A5 --- Comp System components
26- 35 A10 --- OName Other name
37- 45 F9.4 yr Epoch Epoch of Observation (Besselian year)
47- 48 A2 --- Filt Filter used in observation (G2)
54 I1 --- Num Number of observations
56- 60 F5.1 deg theta Position angle θ
62- 65 F4.1 mas sigt Tangential error ρσθ
67- 72 F6.4 arcsec rho Separation angle ρ
74- 76 F3.1 mas e_rho Radial error σρ
78- 81 F4.1 mag Dm Maximum magnitude component difference
83 A1 --- f_Dm [:*] Magnitude difference flag (G3)
85 A1 --- Note [*] Note flag, in notes.dat file
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS WDS designation (G1)
12- 25 A14 --- DisLet Discoverer designation
27- 80 A54 --- Note Notes
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Global notes:
Note (G1): Based on arcminute-precision J2000 coordinates
Note (G2): Filters y R V I Ha
* y: 550.7nm, FWHM 21.6nm (close to Stroemgren filter)
* Ha = Hα: 657.3nm, FWHM 5.04nm
Note (G3): Flags used are:
: = noisy data, with magnitude difference often over-estimated
* = magnitude difference and true quadrant determined from the
long-exposure images.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 16-May-2012