J/AJ/159/266 12 years positional measurements of 8 binaries (Mitrofanova+, 2020)
Speckle interferometry of nearby multiple stars: 2007-2019 positional
measurements and orbits of eight objects.
Mitrofanova A., Dyachenko V., Beskakotov A., Balega Y., Maksimov A.,
Rastegaev D., Komarinsky S.
<Astron. J., 159, 266 (2020)>
=2020AJ....159..266M 2020AJ....159..266M
ADC_Keywords: Stars, double and multiple; Positional data; Optical;
Photometry, infrared; Stars, masses; Spectral types
Keywords: Binary stars ; Interferometric binary stars ;
Spectroscopic binary stars ; Speckle interferometry ;
Orbital elements ; Orbits ; Low mass stars ;
Fundamental parameters of stars ; Stellar masses
Abstract:
The orbits of eight systems with low-mass components (HIP14524,
HIP16025, HIP28671, HIP46199, HIP47791, HIP60444, HIP61100, and
HIP73085) are presented. Speckle interferometric data were obtained at
the 6m Big Telescope Alt-azimuth Special Astrophysical Observatory of
the Russian Academy of Sciences (BTA SAO RAS) from 2007 to 2019. New
data, together with measures already in the literature, made it
possible to improve upon previous orbital solutions in six cases and
to construct orbits for the first time in the two remaining cases
(HIP14524 and HIP60444). Mass sums are obtained using both Hipparcos
and Gaia parallaxes, and a comparison with previously published values
is made. Using the Worley & Heintz criteria, the classification of the
orbits constructed is carried out.
Description:
Speckle interferometric observations were carried out in 2007-2019 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 Electron Multiplying CCD (EMCCD)
detectors, namely the PhotonMAX-512B (until 2010), Andor iXon+ X-3974
(2010-2014), and Andor iXon Ultra 897 (since 2015).
The observation log is shown in Table1, most of the speckle images
were obtained under good weather conditions with seeing 1"-2". Speckle
interferograms were recorded with an exposure time of 20ms and a
standard series of 1940 (until 2010) and 2000 images for each object.
The following interference filters were used (central wavelength
λ/bandpassΔλ): 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 79 191 Positional parameters of the objects studied and
the magnitude differences between components
table2.dat 133 18 Orbital parameters of the objects
table3.dat 89 23 Fundamental parameters of the objects
ref.dat 67 34 References used
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+, 2001-2014)
III/22 : Rotation of Evolving A and F Stars (Danziger+ 1972)
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/AJ/106/1639 : Speckle observations of binary stars (McAlister+ 1993)
J/AJ/119/3084 : ICCD speckle obs. of binary stars. XXIII. (Hartkopf+, 2000)
J/A+A/385/87 : Speckle interferometry of nearby multiple stars (Balega+, 2002)
J/A+A/422/627 : Nearby multiple stars speckle interferometry (Balega+, 2004)
J/AJ/127/1727 : Differential magnitudes of binary stars (Horch+, 2004)
J/other/AstBu/62.339 : Speckle interferometry nearby multiples (Balega+, 2007)
J/other/AstBu/62.235 : Metal-poor stars speckle interferom. (Rastegaev+, 2007)
J/AJ/136/312 : 2001-2006 WIYN binary stars speckle observations (Horch+, 2008)
J/other/AstBu/63.278 : Metal-poor stars speckle interferom. (Rastegaev+, 2008)
J/AJ/139/205 : 2007-2008 WIYN speckle observations of binaries (Horch+, 2010)
J/other/RMxAA/47.211 : Speckle interferometry at OAN. III. (Orlov+, 2011)
J/A+A/531/A165 : MILES atmospheric parameters (Prugniel+, 2011)
J/AJ/143/42 : Speckle interferometry with SOAR in 2010&2011 (Hartkopf+, 2012)
J/AJ/143/10 : 2008-2009 WIYN speckle obs. binaries. VII. (Horch+, 2012)
J/MNRAS/427/343 : Infrared excesses of Hipparcos stars (McDonald+, 2012)
J/other/AstBu/68.53 : Nearby multiple Speckle interferom. V. (Balega+,013)
J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)
J/AJ/147/123 : Speckle interferometry with SOAR 2012-2013 (Tokovinin+, 2014)
J/AJ/150/136 : Speckle interferometry at USNO. XX. (Hartkopf+, 2015)
J/AJ/150/151 : DSSI obs. of binaries. VI. Measures in 2014 (Horch+, 2015)
J/AJ/150/50 : Speckle interferometry at SOAR in 2014 (Tokovinin+, 2015)
J/AJ/152/138 : Orbits based on speckle interferometry SOAR (Tokovinin, 2016)
J/AJ/151/153 : Speckle interferometry at SOAR in 2015 (Tokovinin+, 2016)
J/AJ/153/212 : Observations of binary stars at WIYN telescope (Horch+, 2017)
J/MNRAS/474/731 : Accurate SB2 radial velocities (Kiefer+, 2018)
J/AJ/156/240 : Speckle interferometry at the USNO. XXIII. (Mason+, 2018)
J/AJ/157/56 : DSSI observations binary & trinary star systems (Horch+, 2019)
J/AJ/157/91 : Radial velocities subsystems multiple stars (Tokovinin, 2019)
J/AJ/158/167 : Speckle observations & orbits multiple stars (Tokovinin+, 2019)
J/AJ/158/48 : Speckle interferometry at SOAR in 2018 (Tokovinin+, 2019)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- HIP [14524/73085] Hipparcos number
7- 17 F11.6 yr Epoch [1988/2020] Epoch of observation (1)
19- 31 A13 --- Tel Telescope used
33- 40 A8 nm Filt Bandpass or lambda/FWHM
42- 47 F6.2 deg PA [0.1/358.3] Position angle
49- 51 F3.1 deg e_PA [0.1/2.8]? Error in PA
53- 57 F5.1 mas Sep [29/621] Angular separation
59- 62 F4.1 mas e_Sep [0.2/15]? Error in Sep
64- 67 F4.2 mag Dmag [0/3]? Magnitude difference
69- 72 F4.2 mag e_Dmag [0.01/0.2]? Error in Dmag
74- 79 A6 --- Ref References used
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Note (1): In fraction of a Besselian year.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- HIP [14524/73085] Hipparcos number
7- 14 F8.3 yr Porb [3.5/1366] Orbital period
16- 22 F7.3 yr e_Porb [0.002/127]? Negative error on Porb
24- 26 I3 yr E_Porb [199]? Positive error on Porb, if different from
negative
28 A1 --- f_Porb [a]? Flag on Porb (1)
30- 39 F10.5 yr T0 [171/2045]?
41- 49 F9.5 yr e_T0 [0.001/104]? Negative error on T0
51- 53 I3 yr E_T0 [564]? Positive error on T0, if different from
negative
55 A1 --- f_T0 [b] Flag on T0 (1)
57- 62 F6.4 --- e [0.09/0.96] Eccentricity
64- 69 F6.4 --- e_e [0.001/0.67]? Negative error on e
71- 74 F4.2 --- E_e [0.09]? Positive error on e, if different from
negative
76- 80 F5.1 mas a [35.2/694]? Semi-major axis
82- 85 F4.1 mas e_a [0.1/46]? Negative error on a
87- 89 F3.1 mas E_a [4.8]? Positive error on a, if different from
negative
91- 95 F5.1 deg Omega [22.1/358]? Ascending node (Ω)
97- 99 F3.1 deg e_Omega [0.2/6]? Negative error on Omega
101 I1 deg E_Omega [5]? Positive error on Omega, if different from
negative
103-108 F6.2 deg omega [63/326]? Argument of periastron (ω)
110-114 F5.2 deg e_omega [0.07/23.9]? Negative error on omega
116-117 I2 deg E_omega [12]? Positive error on omega, if different from
negative
119-123 F5.1 deg i [41.2/130]? Inclination
125-127 F3.1 deg e_i [0.1/6.6]? Error on i
129-133 A5 --- Ref References used
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Note (1): flag as follows:
a = Porb and the errors are in days (5 occurrences)
b = T0 and the errors are in days (1 occurrence)
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- HIP [14524/73085] Hipparcos number
7- 11 F5.2 mag MAGA [1.7/10.9]? Absolute magnitude of component A
13- 16 F4.2 mag e_MAGA [0.07/0.63]? Error on MAGA
18- 26 A9 --- SpTA Spectral type of component A
28- 32 F5.3 Msun MAmin [0.4/2.1] Minimum mass of component A
34- 38 F5.3 Msun MAmax [0.01/2]? Maximum mass of component A, if different
from minimum
40- 44 F5.2 mag MAGB [0.017/12.39]? Absolute magnitude of component B
46- 49 F4.2 mag e_MAGB [0.07/0.66]? Error on MAGB
51- 61 A11 --- SpTB Spectral type of component B
63- 67 F5.3 Msun MBmin [0.26/2.1] Minimum mass of component B
69- 73 F5.3 Msun MBmax [0.01/1.76]? Maximum mass of component B, if
different from minimum
75- 78 F4.2 Msun M [0.3/6.5]? Mass sum of the components defined by
orbital parameters
80- 83 F4.2 Msun e_M [0.03/3.54]? Error on M
85- 86 I2 --- refplx ? Parallax source
88- 89 I2 --- Ref References
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Byte-by-byte Description of file: ref.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Ref [1/34] Reference number
4- 21 A18 --- Autor Main autor of the reference
23- 41 A19 --- BIB Bibcode of the reference
43- 67 A25 --- Note Comment or Vizier catalog number
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History:
From electronic version of the journal
References:
Balega et al. Paper I: 2002A&A...385...87B 2002A&A...385...87B cat: J/A+A/385/87
Balega et al. Paper II: 2004A&A...422..627B 2004A&A...422..627B cat: J/A+A/422/627
Balega et al. Paper III: 2006BSAO...59...20B 2006BSAO...59...20B
Balega et al. Paper IV: 2007AstBu..62..339B 2007AstBu..62..339B cat: J/other/AstBu/62.339
Balega et al. Paper V: 2013AstBu..68...53B 2013AstBu..68...53B cat: J/other/AstBu/68.53
(End) Prepared by [AAS], Coralie Fix [CDS], 28-Jul-2020