J/AJ/164/228 Visual Orbits of Binaries with CHARA Array. IV. (Lester+, 2022)
Visual Orbits of Spectroscopic Binaries with the CHARA Array.
IV. HD61859, HD89822, HD109510, and HD191692.
Lester K.V., Schaefer G.H., Fekel F.C., Gies D.R., Henry T.J., Jao W.-C.,
Paredes L.A., Hubbard-James H.-S., Farrington C.D., Gordon K.D.,
Chojnowski S.D., Monnier J.D., Kraus S., Le Bouquin J.-B., Anugu N.,
Brummelaar T.T., Davies C.L., Gardner T., Labdon A., Lanthermann C.,
Setterholm B.R.
<Astron. J., 164, 228 (2022)>
=2022AJ....164..228L 2022AJ....164..228L
ADC_Keywords: Binaries, spectroscopic; Stars, double and multiple;
Spectra, optical; Photometry, infrared; Radial velocities
Keywords: Binary stars ; Spectroscopic binary stars ; Visual binary
stars ; Long baseline interferometry ; Fundamental parameters
of stars
Abstract:
We present the visual orbits of four spectroscopic binary stars,
HD61859, HD89822, HD109510, and HD191692, using long baseline
interferometry with the CHARA Array. We also obtained new radial
velocities from echelle spectra using the APO 3.5m, CTIO 1.5m, and
Fairborn Observatory 2.0m telescopes. By combining the astrometric and
spectroscopic observations, we solve for the full, three-dimensional
orbits and determine the stellar masses to 1%-12% uncertainty and
distances to 0.4%-6% uncertainty. We then estimate the effective
temperature and radius of each component star through Doppler
tomography and spectral energy distribution analyses. We found masses
of 1.4-3.5M☉, radii of 1.5-4.7R☉, and temperatures of
6400-10300K. We then compare the observed stellar parameters to the
predictions of the stellar evolution models, but found that only one
of our systems fits well with the evolutionary models.
Description:
We observed all four binaries with the enter for High Angular
Resolution Astronomy (CHARA) Array from 2012 to 2019 using the CLIMB
beam combiner and from 2019 to 2021 using the MIRC-X beam combiner.
CHARA has six 1.0m telescopes arranged in a Y-shape with baselines
ranging from 34 to 331m. CLIMB combines the K'-band light from three
telescopes at a time, while MIRC-X combines the H-band light from up
to six telescopes and disperses the light into six narrowband spectral
channels at R=50.
We observed HD61859, 89822, and 109510 with the Astrophysical Research
Consortium echelle spectrograph (ARCES) on the Apache Point
Observatory (APO) 3.5m telescope from 2015 to 2020. ARCES covers
3500-10500Å over 107 orders at an average resolving power of
R∼30000.
We observed HD109510 and 191692 with the CHIRON echelle spectrograph
on the Cerro Tololo Infrared Small and Moderate Aperture Research
(CTIO/SMARTS) 1.5m telescope from 2014 to 2020. HD109510 was observed
in the R∼28000 fiber mode and HD191692 was observed in the R∼90000
slicer mode. Both modes cover 4500-8800Å over 60 echelle orders.
We also acquired spectroscopic observations of all four binaries at
Fairborn Observatory in southeast Arizona with the Tennessee State
University 2.0m Automatic Spectroscopic Telescope (AST) and a
fiber-fed echelle spectrograph. We collected spectra of HD89822 from
2005 to 2020, HD109510 from 2020 to 2021, and of HD191692 from 2004 to
2021. Those spectra cover a wavelength region of 4920-7100Å, and
have R∼35000 at 6000Å. During the summer of 2011 we replaced the
SITe CCD with a Fairchild 486 CCD that has a 4096x4096 pixel array
enabling coverage of a wavelength range of 3800-8600Å over 48
orders. We used a 200µm fiber that produced R∼25000 at 6000Å.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 140 4 Orbital parameters from VB+SB2 solution
table3.dat 180 4 Astrophysical parameters
table5.dat 66 294 Radial velocity measurements
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See also:
I/337 : Gaia DR1 (Gaia Collaboration, 2016)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
J/A+A/363/1081 : Non-linear limb-darkening law for LTE models (Claret 2000)
J/A+A/404/775 : Radial velocities of HD 41004A/B (Zucker+, 2003)
J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)
J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)
J/AJ/145/111 : Radial velocities of 5 spectroscopic binaries (Fekel+, 2013)
J/AJ/152/213 : Interferometry & spectroscopy sigma Orionis (Schaefer+, 2016)
J/ApJ/856/23 : BANYAN. XI. The BANYAN Σ algorithm (Gagne+, 2018)
J/A/160/58 : Orbits of spectro. bin with CHARA Array. III. (Lester+, 2020)
J/AJ/162/176 : The solar neighborhood. XLVIII. (Paredes+, 2021)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Name Identifier
11- 19 F9.6 d Per [7.33/31.6] Period
21- 28 F8.6 d e_Per [1e-05/9e-05] Error on Per
30- 38 F9.3 d HJD [57756/59362] Heliocentric Julian Date;
HJD-2400000
40- 44 F5.3 d e_HJD [0.004/0.02] Error on HJD
46- 51 F6.4 --- e [0.19/0.61] Eccentricity
53- 58 F6.4 --- e_e [0.0007/0.002] Error on e
60- 65 F6.2 deg omega [33.7/303] Argument of periastron (ω1)
67- 70 F4.2 deg e_omega [0.2/0.3] Error on omega
72- 77 F6.2 deg i [61.4/145] Inclination
79- 82 F4.2 deg e_i [0.1/4] Error on i
84- 88 F5.3 mas alpha [1/4.41] Position relative to phase centre
90- 94 F5.3 mas e_alpha [0.001/0.04] Error on alpha
96-101 F6.2 deg Omega [96.9/238] Ascending node
103-106 F4.2 deg e_Omega [0.1/4] Error on Omega
108-113 F6.2 km/s gamma [-29.3/3.51] gamma velocity
115-118 F4.2 km/s e_gamma [0.03/0.08] Error on gamma
120-124 F5.2 km/s K1 [38.1/68.2] Velocity semi-amplitude of primary
126-129 F4.2 km/s e_K1 [0.04/0.09] Error on K1
131-135 F5.2 km/s K2 [52.8/81.3] Velocity semi-amplitude of secondary
137-140 F4.2 km/s e_K2 [0.03/0.2] Error on K2
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Name Identifier
11- 15 F5.3 Msun Mass1 [1.62/3.57] Primary mass
17- 21 F5.3 Msun e_Mass1 [0.02/0.3] Error on Mass1
23- 27 F5.3 Msun Mass2 [1.44/2.74] Secondary mass
29- 33 F5.3 Msun e_Mass2 [0.02/0.2] Error on Mass2
35- 38 F4.2 Rsun Rad1 [2.28/4.76] Primary radius
40- 43 F4.2 Rsun e_Rad1 [0.06/0.2] Error on Rad1
45- 48 F4.2 Rsun Rad2 [1.51/2.34] Secondary radius
50- 53 F4.2 Rsun e_Rad2 [0.06/0.07] Error on Rad2
55- 59 I5 K Teff1 [6390/10300] Effective temperature, primary
61- 63 I3 K e_Teff1 [100/200] Error on Teff1
65- 69 I5 K Teff2 [6610/10230] Effective temperature, secondary
71- 73 I3 K e_Teff2 [140/230] Error on Teff2
75- 78 F4.2 [-] logg1 [3.64/3.88] Primary surface gravity
80- 83 F4.2 [-] e_logg1 [0.01/0.05] Error on logg1
85- 88 F4.2 [-] logg2 [4.09/4.22] Secondary surface gravity
90- 93 F4.2 [-] e_logg2 [0.02/0.05] Error on logg2
95- 99 F5.1 Lsun Lum1 [9.6/230] Primary luminosity
101-104 F4.1 Lsun e_Lum1 [1.3/23] Error on Lum1
106-109 F4.1 Lsun Lum2 [4.1/54] Secondary luminosity
111-113 F3.1 Lsun e_Lum2 [0.5/6] Error on Lum2
115-116 A2 --- l_vsini1 Limit flag on vsini1
118-121 F4.1 km/s vsini1 [4.2/37.1] Primary rotational velocity
123-125 F3.1 km/s e_vsini1 [0.4/2]? Error on vsini1
127-128 A2 --- l_vsini2 Limit flag on vsini2
130-133 F4.1 km/s vsini2 [4.2/14.2] Secondary rotational velocity
135-137 F3.1 km/s e_vsini2 [0.9/3]? Error on vsini2
139-143 F5.2 [-] [z1/zs] [-0.05/0.11] log primary redshift divided by
Sun redshift
145-148 F4.2 [-] e_[z1/zs] [0.02/0.2] Error on [z1/zs]
150-154 F5.2 [-] [z2/zs] [-0.06/0.12] log secondary redshift divided
by Sun redshift
156-159 F4.2 [-] e_[z2/zs] [0.05/0.2] Error on [z2/zs]
161-165 F5.1 pc Dist [64.4/111] Distance from this work
167-169 F3.1 pc e_Dist [0.3/6.1] Error on Dist
171-176 F6.1 pc DistG [-104/112] Distance from Gaia DR3
178-180 F3.1 pc e_DistG [0.4/3] Error on DistG
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Name Identifier
11- 14 I4 yr Obs.Y [2004/2021] Year of observation
16- 18 A3 "month" Obs.M Month of observation
20- 21 I2 d Obs.D Day of observation
23- 32 F10.4 d HJD [53091/59367] Heliocentric Julian Date;
HJD-2400000
34- 39 F6.2 km/s RVel1 [-56.1/81.4] Primary radial velocity
41- 44 F4.2 km/s e_RVel1 [0.1/2] Error on RVel1
46- 52 F7.2 km/s RVel2 [-128/78.2] Secondary radial velocity
54- 57 F4.2 km/s e_RVel2 [0.2/3] Error on RVel2
59- 66 A8 --- Ref Reference(s) used; APO, CTIO or Fairborn
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History:
From electronic version of the journal
References:
Lester et al. Paper I : 2019AJ....157..140L 2019AJ....157..140L
Lester et al. Paper II : 2019AJ....158..218L 2019AJ....158..218L
Lester et al. Paper III: 2020AJ....160...58L 2020AJ....160...58L Cat. J/AJ/160/58
(End) Prepared by Fix Coralie [CDS], 24-Jan-2023