J/AJ/158/222 Orbits of subsystems in multiple stars. VI. (Tokovinin, 2019)
Spectroscopic orbits of subsystems in multiple stars. VI.
Tokovinin A.
<Astron. J., 158, 222 (2019)>
=2019AJ....158..222T 2019AJ....158..222T (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Radial velocities ;
Rotational velocities ; Stars, masses
Keywords: Binary stars - Multiple stars - Trinary stars
Abstract:
Thirteen spectroscopic orbits of late-type stars are determined from
the high-resolution spectra taken with the CHIRON echelle spectrometer
at the 1.5 m Cerro Tololo Inter-American Observatory telescope. Most
(HIP 14194B, 40523A, 41171A, 51578A, 57572B, 59426A, 62852B, 66438A,
87813B, and 101472A) are inner subsystems in hierarchical multiple stars
with three or four components. The periods range from 2.2 to 1131 days.
Masses of the components, orbital inclinations, and projected rotation
velocities are estimated, and the presence or absence of the lithium line
is noted. In addition to those systems, HIP 57021 is a simple 54 day
twin binary, and HIP 111598 is a compact triple-lined system with periods
of 5.9 and 271 days. This object is likely old, but, nevertheless, the
secondary component in the inner pair does not rotate synchronously with
the orbit. The period-eccentricity diagram of 528 known inner low-mass
spectroscopic subsystems (including 36 from this paper series) is given.
The distribution of the inner periods is smooth, without any details
around the tidal circularization period of ∼10 days.
Description:
The spectra used here were taken with the 1.5 m telescope sited at the
Cerro Tololo Inter-American Observatory in Chile and operated by the
Small & Moderate Aperture Research Telescope System (SMARTS) Consortium
(http://www.astro.yale.edu/smarts/). The observing time (20 hr per semester)
was allocated through the National Optical Astronomy Observatory (NOAO).
Observations were made with the CHIRON optical echelle spectrograph
(Tokovinin et al. 2013PASP..125.1336T 2013PASP..125.1336T) by the telescope operators in
service mode. The RVs are determined from the cross-correlation function
(CCF) of echelle orders with the binary mask based on the solar spectrum,
as detailed in Tokovinin (2016, J/AJ/152/11).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 70 20 Basic parameters of observed multiple systems
table2.dat 40 29 Cross-correlation function (CCF) parameters
table3.dat 139 13 Spectroscopic orbits
table4.dat 45 337 Radial velocities and residuals
table5.dat 26 21 Radial velocities of other components
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2014)
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/A+A/382/118 : Spectroscopic sub-systems in multiple stars (Tokovinin+, 2002)
J/AJ/152/10 : Spectroscopy of subsystems in four multiple stars
(Tokovinin, 2016)
J/AJ/152/11 : Orbits of four triple stars (Tokovinin, 2016)
J/AJ/156/48 : Orbits of subsystems in six multiple stars. III.
(Tokovinin, 2018)
J/AJ/156/194 : Orbits of double-lined pairs in multiple stars
(Tokovinin, 2018)
J/ApJS/235/6 : Updated Multiple Star Catalog (MSC); August 2019
(Tokovinin, 2018)
J/AJ/157/91 : Radial velocities of subsystems in multiple stars
(Tokovinin, 2019)
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 identification (HHMMm+DDMM, J2000)
12- 13 A2 --- Comp Component(s) designation
15- 20 I6 --- HIP [14194/111598] Hipparcos number
22- 27 I6 --- HD [18795/214169] HD number
29- 34 A6 --- SpType Spectral type
36- 40 F5.2 mag Vmag [5.63/11.97] V band magnitude
42- 45 F4.2 mag V-K [0.19/2.89]? V-K color index
47- 50 I4 mas/yr pmRA [-279/166] Proper motion in right ascension
direction (pmRA*cosDE) (1)
52- 55 I4 mas/yr pmDE [-124/172] Proper motion in declination
direction (1)
57- 62 F6.2 km/s RV [-89.87/36.12] Radial velocity
63 A1 --- u_RV [:] Uncertainty flag on RV
65- 69 F5.2 mas Plx [6.17/29.67] Parallax (1)
70 A1 --- n_Plx [b] Note on Plx (2)
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Note (1): Proper motions and parallaxes are taken from the Gaia DR2 (Gaia
Collaboration et al. 2018, Cat. I/345), where available.
Note (2): Note as follows:
b = Hipparcos parallax (van Leeuwen 2007, Cat. I/311).
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP [14194/111598] Hipparcos number
8- 9 A2 --- Comp Component(s) designation
11- 12 I2 --- N [1/24] Number of averaged measurements
14- 18 F5.3 --- a [0.014/0.522] Dip amplitude
20- 25 F6.3 km/s sigma [3.168/24.05] Dispersion σ of a
27- 31 F5.3 km/s asigma [0.043/2.188] Product aσ proportional
to the dip area
33- 36 F4.1 km/s Vsini [0/43] Projected rotation velocity
37 A1 --- u_Vsini [:] Uncertainty flag on Vsini
39- 40 A2 --- Li Presence or absence of the lithium 6708 Å
line in individual components
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP [14194/111598] Hipparcos number
8- 12 A5 --- Syst System designation
14- 23 F10.5 d Per [2.19189/1136] Period
25- 31 F7.5 d e_Per [1e-05/5.8] Uncertainty in Per
33- 42 F10.4 d T [53759.4/58560.7] Julian Date (JD-2400000)
44- 49 F6.4 d e_T [0.0007/9.11] Uncertainty in T
51- 56 F6.4 --- e [0/0.575] Eccentricity
58- 63 F6.4 --- e_e [0.0005/0.038]? Uncertainty in e
64 A1 --- f_e [f] f for fixed value
66- 70 F5.1 deg omegaA [0/308.1] Longitude of periastron for the
primary component ωA
72- 75 F4.2 deg e_omegaA [0.01/2.1]? Uncertainty in omegaA
76 A1 --- f_omegaA [f] f for fixed
78- 83 F6.3 km/s K1 [10.027/67.484] Radial velocity amplitude of
the primary component
85- 90 F6.4 km/s e_K1 [0.0039/0.754] Uncertainty in K1
92- 97 F6.3 km/s K2 [10.241/71.379]? Radial velocity amplitude of
the secondary component
99-103 F5.3 km/s e_K2 [0.026/1.874]? Uncertainty in K2
105-111 F7.3 km/s gamma [-89.867/36.121]? Center-of-mass velocity
γ
113-117 F5.3 km/s e_gamma [0.01/0.341]? Uncertainty in gamma
119-122 F4.2 km/s rms1 [0.03/1.67]? Weighted rms residual for the
primary component
124-127 F4.2 km/s rms2 [0.03/0.37]? Weighted rms residual for the
secondary component
129-132 F4.2 Msun M1sin3i [0.27/1.49] Mass of the primary for double-lined
system, M1sin3i
133 A1 --- u_M1sin3i [:] Uncertainty flag in M1sin3i
135 A1 --- l_M2sin3i [>] Limit flag on M2sin3i
136-139 F4.2 Msun M2sin3i [0.27/1.28] Mass of the secondary M2sin3i
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP [14194/111598] Hipparcos number
8- 12 A5 --- Syst System designation
14- 23 F10.4 d Date [50301.354/58702.7466] Julian Date (JD-2400000)
25- 31 F7.2 km/s RV [-116.04/94.47] Radial velocity
33- 37 F5.2 km/s e_RV [0.05/20] RV error
39- 43 F5.2 km/s O-C [-9.04/6.14] Residual to orbit
45- 45 A1 --- Comp [abc] Component label (a=primary, b=secondary,
c=tertiary)
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- HIP [40523/66438] Hipparcos number
7 A1 --- Comp [AB] Component designation
9- 18 F10.4 d Date [58193.7/58699.6] Julian Date (JD-2400000)
20- 25 F6.3 km/s RV [-6.4/30.203] Radial velocity
26 A1 --- u_RV [:] Uncertainty flag on RV
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History:
From electronic version of the journal
References:
Tokovinin et al. Paper I. 2016AJ....152...11T 2016AJ....152...11T, Cat. J/AJ/152/11
Tokovinin et al. Paper II. 2016AJ....152...10T 2016AJ....152...10T, Cat. J/AJ/152/10
Tokovinin et al. Paper III. 2018AJ....156...48T 2018AJ....156...48T, Cat. J/AJ/156/48
Tokovinin et al. Paper IV. 2018AJ....156..194T 2018AJ....156..194T, Cat. J/AJ/156/194
Tokovinin et al. Paper V. 2019AJ....157...91T 2019AJ....157...91T, Cat. J/AJ/157/91
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 22-Jan-2020