J/AJ/162/156 Speckle interfero. nearby multiple stars. II (Mitrofanova+, 2021)
Speckle interferometry of nearby multiple stars.
II. 2007-2020 positional measurements and orbits of sixteen objects.
Mitrofanova A., Dyachenko V., Beskakotov A., Balega Y., Maksimov A.,
Rastegaev D.
<Astron. J., 162, 156-156 (2021)>
=2021AJ....162..156M 2021AJ....162..156M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple; Interferometry; Photometry, infrared;
Optical; Positional data
Keywords: Multiple stars; Binary stars; Low mass stars; Speckle interferometry
Orbits; Orbital elements; Stellar masses
Abstract:
Long-term monitoring at the 6m telescope of the Special Astrophysical
Observatory of the Russian Academy of Sciences made it possible to
improve the orbits of 15 objects (HIP689, HIP3951, HIP10438, HIP43948,
HIP69962, HIP95995, HIP102029, HIP102357, HIP104383, HIP105947,
HIP106255, HIP108917, HIP111546, HIP113726, HIP114922) and construct
an orbital solution for HIP65327 for the first time. Observations have
been carried out since 2007; that is, the accumulated data correspond
to an interval of 13yr. As a result, most of the orbits were
classified as "accurate" using the qualitative criteria by Worley &
Heintz. A comparison of the mass sums and masses of the components
calculated by two independent methods was made for objects with
orbital solutions. The Gaia EDR3 parallax was used to obtain the
fundamental parameters, as well as the Hipparcos and Gaia DR2
parallaxes.
Description:
Speckle interferometric observations were carried out in 2007-2020 at
the Big Telescope Alt-azimuth (BTA) of the Special Astrophysical
Observatory of the Russian Academy of Sciences (SAO RAS) using a
speckle interferometer based on EMCCD detectors, namely the
PhotonMAX-512B, Andor iXon+ X-3974, and Andor iXon Ultra897. Speckle
interferograms were recorded with an exposure time of 20milliseconds
and a standard series of 1940 (until 2010) and 2000 images for each
object. The following interference filters were used (central
wavelength λ/bandpass):550/20nm, 600/40nm, 800/100nm, and
900/80nm.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 104 323 The positional parameters of the objects
studied and the magnitude differences between
components
refs.dat 104 52 References used
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See also:
B/sb9 : SB9 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2014)
I/239 : The Hipparcos and Tycho Catalogues (ESA, 1997)
V/122 : SB9 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2005)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/AJ/139/205 : 2007-2008 WIYN speckle observations of binaries (Horch+, 2010)
J/AJ/139/743 : Speckle interferometry in 2008-09 (Tokovinin+, 2010)
J/other/Ser/180.71 : Masses of visual binaries (Cvetkovic+, 2010)
J/AJ/141/45 : Speckle observations of HIP stars (Horch+, 2011)
J/other/RMxAA/47.211 : Speckle interferometry at OAN. III. (Orlov+, 2011)
J/A+A/546/A69 : Orbits of visual binaries and dynamical masses (Malkov+, 2012)
J/AJ/143/10 : 2008-2009 WIYN speckle obs. of binaries. VII. (Horch+, 2012)
J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)
J/MNRAS/429/859 : New companions to nearby low-mass stars (Jodar+, 2013)
J/other/AstBu/68.53 : Nearby multiple Speckle interferometry V. (Balega+, 2013)
J/AJ/147/123 : Speckle interferometry with SOAR 2012-2013 (Tokovinin+, 2014)
J/AJ/148/48 : CHARA obs. of omega And, HD 178911, xi Cep (Farrington+, 2014)
J/AJ/150/50 : Speckle interferometry at SOAR in 2014 (Tokovinin+, 2015)
J/AJ/150/151 : DSSI obs. of binaries. VI. Measures in 2014 (Horch+, 2015)
J/MNRAS/449/2618 : M-dwarfs in Multiples (MinMs) survey. I. (Ward-Duong+, 2015)
J/AJ/151/153 : Speckle interferometry at SOAR in 2015 (Tokovinin+, 2016)
J/AJ/152/141 : Solar neighborhood. XXXVII. RVs for M dwarfs (Benedict+, 2016)
J/AJ/153/212 : Observations of binary stars at WIYN telescope (Horch+, 2017)
J/AJ/154/273 : New orbits for 18 binaries (Cvetkovic+, 2017)
J/A+A/619/A81 : Multiplicity among solar-type stars. IV. (Halbwachs+, 2018)
J/AJ/155/215 : Speckle interferometry of red dwarf stars (Mason+, 2018)
J/AJ/155/235 : Speckle interferometry at SOAR in 2016-2017 (Tokovinin+, 2018)
J/MNRAS/474/731 : Accurate SB2 radial velocities (Kiefer+, 2018)
J/A+A/626/A31 : Radial velocities of nearby stars (Sperauskas+, 2019)
J/AJ/158/48 : Speckle interferometry at SOAR in 2018 (Tokovinin+, 2019)
J/AJ/158/167 : Speckle obs & orbits of multiple stars (Tokovinin+, 2019)
J/AJ/159/233 : Observations of binary stars with the DSSI. IX. (Horch+, 2020)
J/AJ/159/266 : 12yr positional measurements of 8 binaries (Mitrofanova+, 2020)
J/AJ/160/7 : 2019SOAR speckle interferometry binary stars (Tokovinin+, 2020)
J/MNRAS/492/2709 : Double-lined spectroscopic binaries cat. (Piccotti+, 2020)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- HIP Hipparcos number
13- 23 F11.6 yr Epoch [1978/2021] Epoch of observation (1)
25- 45 A21 --- Tel ? Telescope
47- 58 A12 nm Filt ? Bandpass or lambda/FWHM
60- 65 F6.2 deg PA [8.2/360] Position angle
67- 70 F4.2 deg e_PA [0.1/5]? Error in PA
72- 77 F6.2 mas Sep [16/800] Angular separation
79- 82 F4.1 mas e_Sep [0.1/6]? Error in Sep
84- 87 F4.2 mag Dmag [0/3.16]? Magnitude difference
89- 92 F4.2 mag e_Dmag [0.02/0.4]? Error in Dmag
94-104 A11 --- Ref Reference to the publication
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Note (1): In fraction of a Besselian year.
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Ref Reference used
7- 28 A22 --- Autor Main autor
30- 48 A19 --- BIB BIBcode
50- 69 A20 --- Cat. Catalog in Vizier
71-104 A34 --- Note Additionnal note
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History:
From electronic version of the journal
References:
Mitrofanova et al. Paper I : 2020AJ....159..266M 2020AJ....159..266M Cat. J/AJ/159/266
(End) Prepared by [AAS], Coralie Fix [CDS], 16-Dec-2021