J/AJ/137/3655 Radial velocities of 8 close binaries (Pribulla+, 2009)
Radial velocity studies of close binary stars. XV.
Pribulla T., Rucinski S.M., Blake R.M., Lu W., Thomson J.R., Debond H.,
Karmo T., De Ridder A., Ogloza W., Stachowski G., Siwak M.
<Astron. J., 137, 3655-3667 (2009)>
=2009AJ....137.3655P 2009AJ....137.3655P
ADC_Keywords: Binaries, eclipsing ; Radial velocities
Keywords: binaries: close - binaries: eclipsing - binaries: spectroscopic -
delta Scuti
Abstract:
Radial velocity (RV) measurements and sine curve fits to the orbital
RV variations are presented for the last eight close binary systems
analyzed in the same way as in the previous papers of this series: QX
And, DY Cet, MR Del, HI Dra, DD Mon, V868 Mon, ER Ori, and Y Sex. For
another seven systems (TT Cet, AA Cet, CW Lyn, V563 Lyr, CW Sge, LV
Vir, and MW Vir), phase coverage is insufficient to provide reliable
orbits but RVs of individual components were measured. Observations of
a few complicated systems observed throughout the David Dunlap
Observatory (DDO) close binary program are also presented; among them
is an especially interesting multiple system V857 Her which-in
addition to the contact binary-very probably contains one or more
subdwarf components of much earlier spectral type. All suspected
binaries which were found to be most probably pulsating stars are
briefly discussed in terms of mean RVs and projected rotation
velocities (vsini) as well as spectral-type estimates. In two of
them, CU CVn and V752 Mon, the broadening functions show a clear
presence of nonradial pulsations. The previously missing spectral
types for Paper I are given here in addition to such estimates for
most of the program stars of this paper.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 157 19 Spectroscopic orbital elements for eight binaries
(completed with names of other observed binaries)
table4.dat 73 17 Low-amplitude variable stars found to be
pulsating or of unknown type
table1.dat 54 343 Radial velocity observations of close binary stars
table3.dat 37 116 Radial velocity observations of the third and
fourth components of multiple systems
table5.dat 37 225 Radial velocity observations of single and
pulsating stars
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See also:
J/AJ/130/767 : Radial velocities of 10 close binaries (Rucinski+, 2005)
J/AJ/132/769 : Radial velocities of 10 close binaries (Pribulla+, 2006)
J/AJ/133/1977 : Radial velocities of 10 close binaries (Pribulla+, 2007)
J/AJ/136/586 : Radial velocities of 10 close binaries (Rucinski+, 2008)
J/AJ/137/3646 : Radial velocities of 10 close binaries (Pribulla+, 2009)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Star name (1)
10- 15 A6 --- Vtype Binary type (EB or EW)
17- 26 A10 --- SpType MK spectral type (2)
28- 37 A10 --- OName1 Other name
39- 48 A10 --- OName2 Other name
50- 55 F6.2 km/s V0 ? Center-of-mass velocity
57- 60 F4.2 km/s e_V0 ? rms uncertainty on V0
62- 67 F6.2 km/s K1 ? Velocity amplitude of the primary (3)
69- 72 F4.2 km/s e_K1 ? rms uncertainty on K1
74- 79 F6.2 km/s K2 ? Velocity amplitude of the secondary (3)
81- 84 F4.2 km/s e_K2 ? rms uncertainty on K2
86- 89 F4.2 --- e1 ? Standard unit-weight error of the solutions
for the primary, ε1 (3)
91- 95 F5.2 --- e2 ? Standard unit-weight error of the solutions
for the secondary, ε2 (3)
97-106 F10.4 d T0 ? Spectroscopically determined moment of upper
conjonction or more massive star, T0-2400000
108-109 I2 10-4d e_T0 ? rms uncertainty on T0
111-117 F7.4 d O-C ? (O-C) deviation corresponding to E (4)
119-126 F8.1 --- E ? Number of elapsed periods (cycle number)
128-136 F9.7 d Per ? Period
138-139 I2 10-6d e_Per ? rms uncertainty on Per
141-145 F5.3 Msun f(M) ? (M1+M2)sin3i value
147-148 I2 10-3Msun e_f(M) ? rms uncertainty on f(M)
150-154 F5.3 --- q ? Mass ratio, M2/M1
156-157 I2 10-3 e_q ? rms uncertainty on q
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Note (1): For close systems without orbital elements, only the name is
reported in the table.
Note (2): The spectral types relate to the combined spectral type of all
components in a system; they are given in parentheses if taken from
the literature, otherwise they are new.
Note (3): The convention of naming the binary components in the table is
that the more massive star is marked by the subscript "1," so that the
mass ratio is always defined to be q≤1.
Note (4): The corresponding (O-C) deviations have been calculated from the
available prediction on primary minimum, as given in the text, using
the assumed periods and the number of epochs given by E. Ephemerides
(HJD{min}-2400000 + period in days) used for the computation of the
(O-C) residuals:
* QX And: 52500.0316 + 0.4121701 x E
* DY Cet: 52500.0031 + 0.4407903 x E
* MR Del: 52500.309 + 0.5216899 x E
* HI Dra: 48500.3186 + 0.597417 x E
* DD Mon: 52500.1745 + 0.568020 x E
* V868 Mon: 53057.664 + 0.637705 x E
* ER Ori: 52500.1689 + 0.4234034 x E
* Y Sex: 52500.1192 + 0.4198199 x E
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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- 9 A9 --- Name Star name
11- 15 F5.1 km/s RV ? Radial velocity (1)
16- 19 A4 --- n_RV Note for variability
21 A1 --- l_vsini Limit flag on vsini
22- 24 I3 km/s vsini Rotational velocity
25 A1 --- u_vsini Uncertainty flag on vsini
27- 30 A4 --- SpType MK spectral type (2)
32- 33 I2 --- No Number of observations
34 A1 --- --- [/]
35 I1 --- Nn Number of nights
37- 40 F4.2 mag DHp ?=- Hipparcos amplitude ΔHp
(95th percentile - 5th percentile)
42- 49 F8.6 d Per ?=- Period (3)
51- 61 A11 --- Vcl1 Classification from Duerbeck
(1997IBVS.4513....1D 1997IBVS.4513....1D)
63- 73 A11 --- Vcl2 This paper "best effort" estimate
classification (4)
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Note (1): mean RVs for stars which are very probably pulsating variables
or for multiple systems with one dominant variable component.
Note (2): Spectral types in parentheses have been taken from the
literature, otherwise they are from our classification spectra.
Note (3): taken from the Hipparcos photometry Annex. For three systems,
FH Cam, CU CVn, and CC Lyn, originally classified as beta Lyrae
variables, this period corresponds to the double wave; for those
stars, if definitely shown to be pulsating variables, one half of
the Hipparcos period should be taken.
Note (4): Stars known to be members of visual pairs in Mason et al.
(2001AJ....122.3466M 2001AJ....122.3466M, Cat. B/wds) are HV Eri (the components about 30"
apart), PV Gem (the brighter component of a very wide visual pair,
about 2' apart), CC Lyn (V=6.62+8.26, theta=88°, rho=2.2"), and
V752 Mon (V=7.47+7.95, theta=24°, rho=1.7"). The pulsating star
V364 Cep was observed by us by mistake; it is the only variable listed
in this table which was not discovered by the Hipparcos satellite
mission.
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Object name
10- 21 F12.4 d HJD Heliocentric Julian Date
23- 29 F7.2 km/s RV1 ?=0 Primary radial velocity (1)
31- 34 F4.2 --- w_RV1 ?=0 Weight of RV1 (2)
36- 42 F7.2 km/s RV2 ?=0 Secondary radial velocity
44- 47 F4.2 --- w_RV2 ?=0 Weight of RV2 (2)
49- 54 F6.4 --- Phase Orbital phase
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Note (1): Corresponding to the more massive component; it was always the
component eclipsed during the minimum at the epoch T0 (this does not
always correspond to the deeper minimum and photometric phase 0.0).
The phases correspond to spectroscopic T0 and periods given in Table
2, but not necessarily to the photometric ephemerides given below the
table).
Note (2): Observations leading to entirely inseparable broadening function
peaks are given zero weight; these observations may be eventually used
in more extensive modeling of the broadening functions. Zero weights
were assigned to observations of marginally visible peaks of the
secondary (sometimes even the primary) component.
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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- 8 A8 --- Name Object name
10- 22 F13.5 d HJD Heliocentric Julian Date
24- 30 F7.2 km/s RV3 ? Third component radial velocity
32- 37 F6.2 km/s RV4 ? Fourth component radial velocity
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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- 9 A9 --- Name Object name (1)
11- 23 F13.5 d HJD Heliocentric Julian Date
25- 30 F6.2 km/s RV Radial velocity
32- 37 F6.2 km/s vsini ? Projected rotational velocity (2)
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Note (1): For V752 Mon broadening functions determined from observations
around 6290 Angstroms lead to very scattered RVs - those are not given
in the table.
Note (2): Given only for rapidly rotating stars with vsini>30km/s.
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History:
From electronic version of the journal
References:
Lu & Rucinski, Paper I 1999AJ....118..515L 1999AJ....118..515L
Rucinski & Lu, Paper II 1999AJ....118.2451R 1999AJ....118.2451R
Rucinski et al., Paper III 2000AJ....120.1133R 2000AJ....120.1133R
Lu et al., Paper IV 2001AJ....122..402L 2001AJ....122..402L
Rucinski et al., Paper V 2001AJ....122.1974R 2001AJ....122.1974R
Rucinski et al., Paper VI 2002AJ....124.1738R 2002AJ....124.1738R
Rucinski, Paper VII 2002AJ....124.1746R 2002AJ....124.1746R
Rucinski et al., Paper VIII 2003AJ....125.3258R 2003AJ....125.3258R
Pych et al., Paper IX 2004AJ....127.1712P 2004AJ....127.1712P
Rucinski et al., Paper X 2005AJ....130..767R 2005AJ....130..767R, Cat. J/AJ/130/767
Pribulla et al., Paper XI 2006AJ....132..769P 2006AJ....132..769P, Cat. J/AJ/132/769
Pribulla et al., Paper XII 2007AJ....133.1977P 2007AJ....133.1977P, Cat. J/AJ/133/1977
Rucinski et al., Paper XIII 2008AJ....136..586R 2008AJ....136..586R, Cat. J/AJ/136/586
Pribulla et al., Paper XIV 2009AJ....137.3646P 2009AJ....137.3646P, Cat. J/AJ/137/3646
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 27-Aug-2011