J/AJ/156/117 Spectroscopic orbits for late-type stars. II. (Fekel+, 2018)
Spectroscopic orbits for late-type stars. II.
Fekel F.C., Willmarth D.W., Abt H.A., Pourbaix D.
<Astron. J., 156, 117 (2018)>
=2018AJ....156..117F 2018AJ....156..117F (SIMBAD/NED BibCode)
ADC_Keywords: Stars, late-type ; Binaries, spectroscopic ; Spectral types ;
Photometry, UBV ; Parallaxes, trigonometric ; Binaries, orbits ;
Rotational velocities ; Stars, masses ; Radial velocities
Keywords: binaries: spectroscopic - binaries: visual -
stars: fundamental parameters - stars: late-type
Abstract:
We have determined spectroscopic orbital elements for 13 systems -
10 single-lined binaries and three double-lined binaries. For the three
binaries with previously published spectroscopic orbits, we have computed
improved or comparable elements. While two systems have relatively short
periods between 10 and 19 days, the remaining systems have much longer
periods ranging from 604 to 9669 days. One of the single-lined systems,
HD 142640, shows both short-period and long-period velocity variations
and so is triple. For three systems - HD 59380, HD 160933, and HD 161163 -
we have combined our spectroscopic results with Hipparcos astrometric
observations to obtain astrometric orbits. For HD 14802 we have determined
a joint orbital solution from spectroscopic velocities and interferometric
observations. The orbits given here will be useful in combination with
future interferometric and Gaia satellite observations.
Description:
The present spectroscopic determinations of binary orbits are a
continuation of the work reported in Willmarth et al. (2016, J/AJ/152/46,
hereafter referred to as Paper I). As in Paper I, most of the stars
discussed here were observed in the course of the solar-type star survey
of Abt & Willmarth (2006, J/ApJS/162/207) but not discussed therein after
they were determined not to be within the survey boundaries. The radial
velocities used here are mainly from the same sources described in
Paper I: Kitt Peak National Observatory (KPNO) and Fairborn Observatory
(Fekel et al. 2009, J/AJ/146/129; 2013, J/AJ/145/111). Additional data
from other sources were used for a few orbits and are described in
Section 4 as part of the discussions of the individual systems.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 89 13 Basic properties of the program stars
table2.dat 175 17 Orbital elements for single-lined spectroscopic
binaries
table3.dat 175 6 Orbital elements for double-lined spectroscopic
binaries
table6.dat 54 1521 Radial velocities of program stars
table7.dat 58 132 Observed and calculated radial velocities
of HD 142640 A,Aa
table8.dat 22 31 Speckle observations of HD 14802
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See also:
III/135 : Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)
V/50 : Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
J/ApJS/141/503 : Radial Velocities for 889 late-type stars (Nidever+, 2002)
J/ApJS/162/207 : Radial velocities of solar-type stars (Abt+, 2006)
J/A+A/552/A78 : Solar like stars radial velocities (Zechmeister+, 2013)
J/AJ/145/111 : Radial velocities of five spectroscopic binaries
(Fekel+, 2013)
J/AJ/146/129 : Orbits of 4 double-lined spectroscopic binaries (Fekel+, 2013)
J/AJ/151/3 : Spectroscopy of binary stars (Gullikson+, 2016)
J/AJ/152/46 : Spectroscopic orbits for 15 late-type stars (Willmarth+, 2016)
J/A+A/618/A5 : Radial velocity survey of low-mass binaries (Durkan+, 2018)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name Star name
13- 16 I4 --- HR [483/9107]? HR number (Cat. V/50)
18- 23 I6 --- HD [4935/225239] HD catalog number (Cat. III/135)
25- 30 I6 --- HIP [394/102032] HIP number (Cat. I/239)
32- 38 A7 --- SpType Spectral type (1)
40- 43 F4.2 mag Vmag [4.7/8.35] V band magnitude
44 A1 --- r_Vmag [f] Reference for Vmag (2)
46- 49 F4.2 mag B-V [0.33/1.61] B-V color index
50 A1 --- r_B-V [f] Reference for B-V (2)
52- 56 F5.2 mas PlxO [1.78/79.09] Original Hipparcos parallax of
Perryman & ESA (1997, Cat. I/239)
58- 62 F5.2 mas PlxR [1.63/78.5] Revised Hipparcos parallax of
van Leeuwen (2007, Cat. I/311)
64- 68 F5.2 mag VMag [-0.59/4.43] Absolute magnitude computed with
the parallax of van Leeuwen (2007, Cat. I/311)
70- 71 I2 km/s vsini1 [2/11] Rotational velocity (3)
73 I1 km/s e_vsini1 [1/1] Uncertainty in vsini1
75- 76 I2 km/s vsini2 [6/13]? Rotational velocity for the secondary,
if the star is a double-lined binary (3)
78 I1 km/s e_vsini2 [1/3]? Uncertainty in vsini2
80- 88 F9.4 d Per [10.9089/9669] Period
89 A1 --- n_Per [g] Note on Per (4)
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Note (1): The reference for the listed spectral type is given in the discussion
of each star in Section 4.
Note (2): Reference as follows:
f = Values from Hoslashg et al. (2000, Cat. I/259) as listed in SIMBAD.
The rest are from SIMBAD.
Note (3): Determined from rotational broadening fits to the lines in the
Fairborn Observatory spectra.
Note (4): Note as follows:
g = Radial velocities also show a change in velocity over a long period,
estimated at 8500 days.
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Byte-by-byte Description of file: table2.dat table3.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD [4935/225239] HD catalog number
(Cat. III/135)
8- 9 A2 --- m_HD Multiplicity index on HD
11 A1 --- n_HD [bcde] Note on HD (1)
13- 24 F12.7 d Per [10.9088/9669]? Orbital period
26- 36 F11.7 d e_Per [6.7e-06/295]? Uncertainty in Per
37 A1 --- n_Per [F] F for fixed
39- 48 F10.4 d T [1988.89/57696.7]? Time of periastron
(HJD-2400000)
50- 57 F8.4 d e_T [0.0067/684]? Uncertainty in T
58 A1 --- n_T [fF] Note on T (F=fixed, f=Besselian years)
60- 65 F6.4 --- e [0.0488/0.82]? Orbital eccentricity
67- 72 F6.4 --- e_e [0.001/0.043]? Uncertainty in e
73 A1 --- n_e [F] F for fixed
75- 80 F6.2 deg omega [52.6/358.8]? Longitude of periastron
ω
82- 86 F5.2 deg e_omega [0.28/13]? Uncertainty in omega
88- 93 F6.3 km/s K [2.024/56.32] Velocity semi-amplitude
95- 99 F5.3 km/s e_K [0.017/0.65]? Uncertainty in K
101-107 F7.3 km/s gamma [-55.035/18.13]? Center-of-mass velocity
γ
109-113 F5.3 km/s e_gamma [0.012/0.66]? Uncertainty in gamma
115-121 F7.5 km/s sigma(O-C) [0.01424/0.91]? rms of the observed minus
computed velocity
123-125 I3 km/s e_sigma(O-C) ? Uncertainty in sigma(O-C)
127-135 F9.4 10+6km asini [7.089/1272]? Projected orbital separation
137-143 F7.4 10+6km e_asini [0.0071/28]? Uncertainty in asini
145-153 F9.7 Msun f(m) [0.00084/0.1368]? Mass function (only in
Table 2)
155-163 F9.7 Msun e_f(m) [9.8e-06/0.0035]? Uncertainty in f(m)
(only in Table 2)
165-169 F5.3 Msun msin3i [0.546/2.11]? The minimum mass msin3i
(only in Table 3)
171-175 F5.3 Msun e_msin3i [0.002/0.14]? Uncertainty in msin3i
(only in Table 3)
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Note (1): Note as follows:
b = Duquennoy & Mayor (1991A&A...248..485D 1991A&A...248..485D);
c = Abt & Willmarth (2006, J/ApJS/162/207);
d = Endl et al. (2002A&A...392..671E 2002A&A...392..671E);
e = Tokovinin (2013AJ....145...76T 2013AJ....145...76T).
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD [4935/225239] HD catalog number (Cat. III/135)
8- 9 A2 --- m_HD Multiplicity index on HD
11- 20 F10.4 d HJD [43783.539/58124.6755] Heliocentric Julian Date
of mid-observation (HJD-2400000)
22- 27 F6.4 --- Phase [0/0.9998] Orbital phase
29- 34 F6.2 km/s RV [-58.7/54.7] Radial velocity
36- 39 F4.2 --- Wt [0/1] Weight assigned in orbital analysis
41- 45 F5.2 km/s (O-C) [-1.49/2.96] Observed minus calculated radial
velocity
47- 54 A8 --- Source Source of the observation (G1)
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 10 F10.4 d HJD [51960.0261/58027.6124] Heliocentric Julian
Date of mid-observation (HJD-2400000)
12- 17 F6.2 km/s ObsRV [-10.81/10.31] Observed radial velocity
19- 23 F5.2 km/s ObsRV(O-C) [-0.43/0.38] Observed velocity minus computed
combined velocity of the two orbits
25- 30 F6.4 --- PLong [0.1848/0.8986] Long-period orbital phase
32- 36 F5.2 km/s RVLong [-5.13/-0.69] Long-period radial velocity (1)
38- 43 F6.4 --- PShort [0.0034/0.997] Short-period orbital phase
45- 49 F5.2 km/s RVShort [-6.1/13.14] Short-period radial velocity (2)
51- 58 A8 --- Source Source of the observation (G1)
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Note (1): Long-period radial velocity is the observed velocity minus the
computed velocity of the short-period orbit.
Note (2): Short-period radial velocity is the observed velocity minus the
computed center-of-mass velocity of the long-period orbit.
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 F9.4 yr Date [2005.63/2015.74] Date of observation
11- 15 F5.1 deg theta [6.6/345.7] Position angle θ
17- 22 F6.4 arcsec rho [0.2267/0.5424] Separation ρ
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Global notes:
Note (G1): Source as follows:
And = Andersen et al. (1985, Cat. III/105);
DMH = Duquennoy et al. (1991A&AS...88..281D 1991A&AS...88..281D);
Fair(FF) = Spectroscopic observations obtained by the first author (FF) with
the 2m Tennessee State University telescope and fiber-fed echelle
spectrograph at Fairborn Observatory in southeast Arizona;
JM = Jasniewicz, G. & Mayor, M. (1988A&A...203..329J 1988A&A...203..329J);
KPNO(AW) = Observations of Abt & Willmarth (2006, J/ApJS/162/207). Obtained
with the Kitt Peak National Observatory (KPNO) 0.9m auxillary
coude feed telescope and the coude spectrograph;
KPNO(DW) = Observations obtained by the second author (DW) at Kitt Peak
National Observatory;
KPNO(FF) = Observations obtained by the first author (FF) at Kitt Peak
National Observatory;
Murd = Murdoch et al. (1993ApJ...413..349M 1993ApJ...413..349M);
Nid = Nidever et al. (2002, J/ApJS/141/503);
Zech = Zechmeister et al. (2013, J/A+A/552/A78).
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History:
From electronic version of the journal
References:
Willmarth et al. Paper I. 2016AJ....152...46W 2016AJ....152...46W, Cat. J/AJ/152/46
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 27-Feb-2019