J/AJ/117/2511 Speckle interferometry at USNO. III (Germain+, 1999)
Speckle interferometry at the US Naval Observatory. III.
Germain M.E., Douglass G.G., Worley C.E.
<Astron. J. 117, 2511 (1999)>
=1999AJ....117.2511G 1999AJ....117.2511G
ADC_Keywords: Stars, double and multiple ; Interferometry ; Magnitudes
Keywords: binaries: general - binaries: visual - techniques: interferometric
Abstract:
Position angles and separations resulting from 2578 speckle
interferometric observations of 590 binary stars are tabulated. This
is the third in a series of papers presenting measures obtained using
the 66 cm refractor at the US Naval Observatory in Washington, DC, and
covers the period from 1995 June through 1996 December. Program stars
range in separation from 0.2" to 4.3", with a limiting magnitude of
V=11. Random errors are estimated to be 17.0mas in separation and
0.56°/ρ in position angle, where ρ is the separation in
arcseconds. These are the first results acquired using an improved
intensified CCD detector. The new detector, in concert with an
intensity-filtering technique applied in software, has permitted a
1mag increase in dynamic range, to 3.5mag, for pairs separated by
about 2". The instrumentation and calibration are briefly described,
with an emphasis on the characteristics of the new detector. The
software filter used to increase the dynamic range is also described.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 62 2587 USNO speckle interferometry data III
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See also:
J/AJ/117/1905 : Speckle interferometry at the USNO. II. (Germain+, 1999)
J/AJ/118/1395 : Speckle interferometry at USNO. IV. (Douglass+, 1999)
J/AJ/119/3071 : Speckle interferometry at USNO. V. (Douglass+, 2000)
J/AJ/120/1120 : Speckle interferometry at USNO. VI. (Mason+, 2000)
J/AJ/122/1586 : Speckle interferometry at USNO. VII. (Mason+, 2001)
J/AJ/124/2254 : Speckle interferometry at USNO. VIII. (Mason+, 2002)
J/AJ/120/2638 : CCD speckle obs. of binary stars. II. (Horch+, 2000)
J/AJ/127/539 : Speckle interferometry at USNO. IX. (Mason+, 2004)
J/AJ/128/3012 : Speckle interferometry at USNO. X. (Mason+, 2004)
J/AJ/131/2687 : Speckle interferometry at USNO. XI. (Mason+, 2004)
J/AJ/132/2219 : Speckle interferometry at USNO. XII (Mason+, 2006)
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 (based on equinox J2000)
12- 25 A14 --- Name Discovery name
27- 30 F4.1 mag Vmag V magnitude
32- 35 F4.1 mag Bmag B magnitude
37- 44 F8.3 yr Date ? Observation date
46- 50 F5.1 deg PA ? Position angle
52- 55 F4.2 arcsec rho ? Separation angle
57- 58 I2 --- M ? Microscopic objective used (1)
60 A1 --- F [Vgy] Filter (2)
62 A1 --- Q [GFPV] Quality of the parabolic fit (3)
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Note (1): 10-power, 18-power or 20-power
Note (2): Filter characteristics
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Filter lambda half-width Magnitude range (V)
Å Å
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V (Johnson) 5450 850 8.3-11:
"g" (USNO) 5600 450 7.3-9.5
y (Stromgren) 5500 240 ≤ 8.3
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Note (3): G: good fit with most of the points lying on the x and y parabolas
F: fair fit with at least three points lying on the parabolas
P: poor fit with points scattered about the parabolas
V: very poor fit with large scatter about the parabolas and a weak
and fuzzy secondary image
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History: From AJ electronic version
References:
Douglass et al., Paper I 1997ApJS..111..289D 1997ApJS..111..289D
Germain et al., Paper II 1999AJ....117.1905G 1999AJ....117.1905G, Cat. J/AJ/117/1905
Douglass et al., Paper IV 1999AJ....118.1395D 1999AJ....118.1395D, Cat. J/AJ/118/1395
Douglass et al., Paper V 2000AJ....119.3071D 2000AJ....119.3071D, Cat. J/AJ/119/3071
Mason et al., Paper VI 2000AJ....120.1120M 2000AJ....120.1120M, Cat. J/AJ/120/1120
Mason et al., Paper VII 2001AJ....122.1586M 2001AJ....122.1586M, Cat. J/AJ/122/1586
Mason et al., Paper VIII 2001AJ....124.2254M 2001AJ....124.2254M, Cat. J/AJ/124/2254
Mason et al., Paper IX 2004AJ....127..539M 2004AJ....127..539M, Cat. J/AJ/127/539
Mason et al., Paper X 2004AJ....128.3012M 2004AJ....128.3012M, Cat. J/AJ/128/3012
Mason et al., Paper XI 2006AJ....131.2687M 2006AJ....131.2687M, Cat. J/AJ/131/2687
Mason et al., Paper XII 2006AJ....132.2219M 2006AJ....132.2219M, Cat. J/AJ/132/2219
Mason et al., Paper XIII 2007AJ....134.1671M 2007AJ....134.1671M, Cat. J/AJ/134/1671
Mason et al., Paper XIV 2008AJ....136.2223M 2008AJ....136.2223M, Cat. J/AJ/136/2223
Mason et al., Paper XV 2010AJ....140..480M 2010AJ....140..480M, Cat. J/AJ/140/480
Mason et al., Paper XVI 2011AJ....141..157M 2011AJ....141..157M, Cat. J/AJ/141/157
Mason et al., Paper XVII 2011AJ....142...46M 2011AJ....142...46M, Cat. J/AJ/142/46
Mason et al., Paper XVIII 2012AJ....143..124M 2012AJ....143..124M, Cat. J/AJ/143/124
Mason et al., Paper XIX 2013AJ....146...56M 2013AJ....146...56M, Cat. J/AJ/146/56
Hartkopf et al., Paper XX 2015AJ....150..136H 2015AJ....150..136H, Cat. J/AJ/150/136
Mason et al., Paper XXI 2017AJ....153...20M 2017AJ....153...20M, Cat. J/AJ/153/20
Mason et al., Paper XXII 2017AJ....154..183M 2017AJ....154..183M, Cat. J/AJ/154/183
Mason et al., Paper XXIII 2018AJ....156..240M 2018AJ....156..240M
(End) James Marcout, Patricia Bauer [CDS] 03-Aug-1999