J/MNRAS/473/4497 Binary stars astrom. and photom. measurements (Roberts+, 2018)
Astrometric and photometric measurements of binary stars with adaptive optics:
observations from 2001 to 2006.
Roberts L.C., Mason B.D.
<Mon. Not. R. Astron. Soc., 473, 4497-4504 (2018)>
=2018MNRAS.473.4497R 2018MNRAS.473.4497R (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple
Keywords: instrumentation: adaptive optics - techniques: photometric -
astrometry - binaries: visual
Abstract:
The adaptive optics system at the 3.6m Advanced Electro-Optical
System telescope was used to measure the astrometry and differential
magnitude in I band of binary star systems between 2002 and 2006. We
report 413 astrometric and photometric measurements of 373 stellar
pairs. The astrometric measurements will be of use for future orbital
determination, and the photometric measurements will be of use in
estimating the spectral types of the component stars. For 21 binaries
that had not been observed in decades, we are able to confirm that the
systems share common proper motion. Candidate new companions were
detected in 24 systems; for these we show the discovery images.
Follow-up observations should be able to determine if these systems
share common proper motion and are gravitationally bound objects. We
computed orbits for nine binaries. Of these, the orbits of five
systems are improved compared to prior orbits and four systems have
their orbits computed for the first time. In addition, 315 stars were
unresolved and the full-width half maxima of the images are presented.
Description:
Observations were made using the AEOS 3.6 m telescope and its AO
system. The AEOS telescope is located at the Maui Space Surveillance
System at the summit of Haleakala.
The astrometry and photometry of all resolved systems are listed in
Table 1.
Observations of stars that did not reveal a companion are detailed in
Table 3.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 90 401 Resolved binaries
table3.dat 47 347 List of stars with no companion detected
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2020)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- WDS WDS name
15- 27 A13 --- Disc Discovery designation
36- 41 I6 --- HD ?=- HD number
45- 50 I6 --- HIP ?=- HIP number
54- 62 F9.4 yr Epoch Besselian date of the observation
67- 71 F5.1 deg theta Position angle
75- 78 F4.2 arcsec rho Separation
81- 85 F5.2 --- DI Differential magnitude measured in Bessel I band
87- 90 F4.2 --- e_DI Erorr on differential magnitude measured in
Bessel I band
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- WDS WDS name
14- 19 I6 --- HD HD number
23- 28 I6 --- HIP ?=- HIP number
30- 38 F9.4 d Epoch Besselian date of the observation
44- 47 F4.2 arcsec FWHM FWHM of the image
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Nov-2020