J/MNRAS/492/2709 Double-lined spectroscopic binaries catalog (Piccotti+, 2020)
A study of the physical properties of SB2s with both the visual and
spectroscopic orbit.
Piccotti L., Docobo J.A., Carini R., Tamazian V.S., Brocato E., Andrade M.,
Campo P.P.
<Mon. Not. R. Astron. Soc. 492, 2709 (2020)>
=2020MNRAS.492.2709P 2020MNRAS.492.2709P (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Binaries, spectroscopic
Keywords: binaries: spectroscopic - binaries: visual -
stars: fundamental parameters
Abstract:
The study of a selected set of 69 double-lined spectroscopic binaries
(SB2) with well defined visual and spectroscopic orbits was carried
out. The orbital parallax, the mass, the colour, and the luminosity of
each component were derived from observational data for almost all of
these systems. We have also obtained an independent estimation of the
component masses by comparing the colour-luminosity diagram (CMD) to
the stellar evolution tracks reported by Pietrinferni. Nearly all of
the observational points on the CMD are located between two tracks of
slightly different mass or which fall very close to the one
corresponding to a unique mass value. The masses obtained from the
stellar model are in good agreement with their empirical values
determined by parallax techniques (orbital, dynamical, and Gaia).
This means that our adopted model is rather reliable and can therefore
be used to infer further information, such as the age of each
component in the studied systems.
Our results indicate a fair correspondence between the age of
primaries and secondary stars within 3σ. Nevertheless, we
caution that these age indications suffer of uncertainties due to both
inhomogeneities/low precision of the adopted photometric data and
possible systematics. Finally, it is statistically shown that along
with the orbital and trigonometric parallaxes, the dynamical parallax
can serve as a reliable tool for distance estimates.
Description:
To compile the orbit list, we combined data from both ORB6 and SB9.
Table 1 lists the orbital elements common to the two catalogs:
hereafter, for each star, the first two upper rows represent ORB6
catalog orbital elements and the two lower lines represent SB9 catalog
orbital elements. Column 1 specifies the catalog: ORB6 or SB9. The
second column gives the Washington Double Stars (WDS) code (coord.
2000) of the binary and below, its HD (Henry Draper) catalog number,
if any. The system identifier adopted in the WDS ("discoverer
designation" as a visual binary) is given in the third column. Columns
4, 5, 6 and 7 contain, for each catalog, the orbital elements in the
first line and their formal uncertainties in the following one: the
orbital period, P, in days, the epoch of periastron passage, T, in
Modified Julian Date (MJD, JD-2400000.5 days), the eccentricity, e,
and the argument of periastron, omega, in degrees. The orbit grades
are given in the ORB6 system, where 1 and 2 grades mean definitive and
good orbits, respectively. The SB9 catalogue contains 2694 orbits of
2386 systems (SB1 and SB2) and 55 spectroscopic triple systems
(http://sb9.astro.ulb.ac.be/). It provides easy access in order to
search for the object using catalogues identifiers (HD, HIP, BD),
coordinates, publication's bibcode, etc. It lists the parameters of
components, magnitudes, the spectral type, the orbital elements with
their standard uncertainties, the orbit grades and radial velocity
curve. Grades of old orbits are taken from The Eighth catalog of the
orbital elements of spectroscopic binary stars (SB8) (Batten, Fletcher
& MacCarthy, 1989PDAO...17....1B 1989PDAO...17....1B) (5-best, 1-worst), for new orbits
they are not entered, pending a development of new automatic grading
system. Column 13 contains the original references of the orbits.
The semi-major axes, expressed in au, are listed in Table 2, where we
have combined the visual and spectroscopic orbits, as we explained
before using the equations 1, 2 and 3. In Columns 2, 3, and 4, list
the values of asini and their uncertainties, with Column 4 indicating
the power of 10 that affects the values of both columns 2 and 3, the
values of asinine, in au, and a, in au, appear with their
uncertainties in columns 5 to 8.
In Table 3 we compared the parallaxes: both the orbital and the
dynamical one, calculated by us, with those provided by Hipparcos
space mission and/or Gaia when available. We have for 16 systems the
orbital parallax that falls within 3σ of the dynamic parallax,
for 35 that falls within 3σ of the parallax of Hipparcos and for
23 that falls within 3σ of the parallax of Gaia. But, on the
other hand, we have 45 systems whose orbital parallax falls within
3σ of at least one of the three parallax values (dynamical,
Hipparcos and Gaia). This discrepancy is probably due to the oldness
of several spectroscopic orbits because the common orbital elements do
not coincide perfectly with those of the visual orbit (see table 1),
and it is therefore desirable to recalculate a number of spectroscopic
orbits. The orbital, the dynamical, Hipparcos and Gaia parallaxes are
given in columns 2, 3, 4, and 5, respectively, with their
corresponding uncertainties. In Table 3 we represent in bold the stars
whose orbital parallax differs from the Gaia parallax by 3 sigma,
while in italics the stars whose orbital parallax differs from the
Hipparcos parallax by 3 sigma, when the Gaia parallax is not
published.
In Table 5 we compared the individual masses of the two components
of each system using the four parallaxes when available. The masses of
the primary, using the orbital, the dynamical, Hipparcos, and Gaia
parallaxes, are presented in columns 2, 3, 4, and 5, respectively,
with their uncertainties; the masses of the secondary, using the
orbital, the dynamical, Hipparcos, and Gaia parallaxes, are found in
columns 6, 7, 8, and 9, respectively, with their uncertainties.
Table 6 collects the magnitudes in the visual band (V), calculated as
described in the equations 8, 9 and 10. The description by columns is:
(1) Henry Draper (HD) catalog number; (2) Composite apparent
magnitude in the visual band (V), taken from the SIMBAD database; (3)
Apparent magnitude of the primary in the visual band; (4) Apparent
magnitude of the secondary in the visual band; (5) Magnitude
difference between the two components. This value was obtained
averaging the corresponding data from speckle measurements collected
in INT4 catalog and discarding the extreme values; (6) Composite
absolute magnitude in the visual band without interstellar
extinction; (7) Absolute magnitude of the primary in the visual band
without interstellar extinction; (8) Absolute magnitude of the
secondary in the visual band without interstellar extinction; (9)
Galactic latitude, in degrees; (10) Interstellar extinction, in
magnitudes; (11) Composite absolute magnitude in the visual band with
interstellar extinction; (12) primary absolute magnitude in the visual
band with interstellar extinction; (13) secondary absolute magnitude
in the visual band with interstellar extinction.
In Table 7 we collected the spectral types, temperatures, colour in-
dices, and bolometric corrections (Gray, 2005). The description by
columns is: (1) Henry Draper (HD) catalog number; (2) Spectral Type of
the primary; (3) Class of the Luminosity of the primary; (4) Spectral
Type of the secondary; (5) Class of the Luminosity of the secondary;
(6) Effective Temperature of the primary; (7) Effective Temperature
of the secondary; (8) colour index (B-V) of the primary; (9) colour
index (B-V) of the secondary; (10) colour index (V-R) of the primary;
(11) colour index (V-R) of the secondary; (12) Bolometric Correction
of the primary; (13) Bolometric Correction of the secondary.
Once the evolutionary track is chosen to be representative of a given
primary (or secondary) star from the CMD, it is straightforward to
obtain the estimation of the age, the luminosity, and the effective
temperature from the same theoretical model. The results for the
primaries are represented in Table 11, and Table 12 provides the
results for the secondary. The format of both Tables is the same.
Column 2 lists the mass in solar masses; in Column 3, the logarithm of
luminosity in solar luminosity is shown; in Column 4, the logarithm of
effective temperature appears, and finally, in Column 5, the logarithm
of age is given.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 127 138 ORB6 & SB9 common orbital elements
refs.dat 96 75 References
table2.dat 62 69 Calculated quantities
table3.dat 79 69 Parallaxes
table5.dat 104 69 Individual masses of the two components
table6.dat 110 69 V Magnitudes
table7.dat 74 69 Spectral types, temperatures, colour indices,
and bolometric corrections
table11.dat 50 69 Estimation of masses and other physical
quantities for the primaries
table12.dat 50 69 Estimation of masses and other physical
quantities for the secondaries
--------------------------------------------------------------------------------
See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2014)
B/sb9 : SB9: 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2014)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- Cat [ORB6 SB9] catalog: ORB6 & SB9
6- 15 A10 --- WDS WDS code (coord. 2000) (1)
17- 29 A13 --- DD Discover designation
30- 35 I6 --- HD HD catalog number
37- 46 F10.4 d P Orbital period, P, in days
48- 55 F8.4 d e_P ? Error on P, in days
56 A1 --- n_P [f] f for fixed
57- 66 F10.4 d T Epoch of periastron passage, T, in MJD
68- 75 F8.4 d e_T ? Error on T, in MJD
77- 83 F7.5 --- e ? Eccentricity, e
85- 91 F7.5 --- e_e ? Error on e
92 A1 --- n_e [f] f for Fixed
93-100 F8.4 deg omega Argument of periastron, omega, in degrees
102-109 F8.4 deg e_omega ? Error on omega, in degrees
110 A1 --- n_omega [f] f for Fixed
111 I1 --- grade ? Orbit grade
113-127 A15 --- Ref References, in refs.dat file
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Note (1): For each stars we have two lines: in the upper line represents ORB6
catalog orbital elements and the lower one represents SB9 catalog orbital
elements.
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 15 A15 --- Ref Reference code
17- 35 A19 --- BibCode BibCode
37- 56 A20 --- Aut Author's name
60- 96 A37 --- Com Comments
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Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 I6 --- HD HD catalog number
8- 17 E10.6 km asinikm Inclination of visual orbit, a*sin(i) in km
19- 28 E10.6 km e_asinikm ? Uncertainty of a*sini in km
30- 37 F8.5 AU asini ? Inclination of visual orbit, a*sin(i) in a.u.
39- 45 F7.5 AU e_asini ? Uncertainty of a*sini in a.u.
47- 54 F8.5 AU a Semi-major axis, in a.u.
56- 62 F7.5 AU e_a ? Uncertainty of semi-major axes, in a.u.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- HD HD catalog number
8- 15 F8.4 mas plxorb Orbital parallax in milliarcsecond
17- 23 F7.4 mas e_plxorb ? Error on orbital parallax in milliarcsecond
25 A1 --- n_plxorb [gh] Note on plxorb (1)
27- 34 F8.4 mas plxHIP Hipparcos parallax in milliarcsecond
36- 41 F6.4 mas e_plxHIP Error on Hipparcos parallax in milliarcsecond
43 A1 --- n_plxHIP [gh] Note on plxHIP (1)
45- 52 F8.4 mas plxGaia ? Gaia parallax in milliarcsecond
54- 59 F6.4 mas e_plxGaia ? Error on Gaia parallax in milliarcsecond
61 A1 --- n_plxGaia [gh] Note on plxGaia (1)
63- 70 F8.4 mas plxDyn ? Dynamical parallax in milliarcsecond
72- 77 F6.4 mas e_plxDyn ? Error on Dynamical parallax in milliarcsecond
79 A1 --- n_plxDyn [gh] Note on plxDyn (1)
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Note (1): Note as follows:
g = orbital parallax differs from the Gaia parallax by 3 sigma
h = orbital parallax differs from the Hipparcos parallax by 3 sigma
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Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 I6 --- HD HD catalog number
8- 13 F6.3 Msun M1Orb Mass of the primary M1, using orbital parallax
15- 19 F5.3 Msun e_M1Orb Error on M1, using the orbital parallax
21- 25 F5.3 Msun M1HIP Mass of the primary M1, using Hipparcos parallax
27- 31 F5.3 Msun e_M1HIP Error on M1, using the Hipparcos parallax
33- 37 F5.3 Msun M1Gaia ? Mass of the primary M1, using Gaia parallax
39- 43 F5.3 Msun e_M1Gaia ? Error on M1, using Gaia parallax
45- 49 F5.3 Msun M1Dyn ? Mass of the primary M1, using Dynamical parallax
51- 55 F5.3 Msun e_M1Dyn ? Error on M1, using Dynamical parallax
57- 62 F6.3 Msun M2Orb Mass of the secondary M2, using orbital parallax
64- 68 F5.3 Msun e_M2Orb Error on M2, using the orbital parallax
70- 74 F5.3 Msun M2HIP Mass of the secondary M2, using Hipparcos parallax
76- 80 F5.3 Msun e_M2HIP Error on M2, using the Hipparcos parallax
82- 86 F5.3 Msun M2Gaia ? Mass of the secondary M2, using Gaia parallax
88- 92 F5.3 Msun e_M2Gaia ? Error on M2, using Gaia parallax
94- 98 F5.3 Msun M2Dyn ? Mass of the secondary, M2 using
Dynamical parallax
100-104 F5.3 Msun e_M2Dyn ? Error on M2, using Dynamical parallax
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- HD HD catalog number
8- 12 F5.3 mag Vmag Composite apparent magnitude in the V band
14- 18 F5.3 mag Vmag1 Apparent magnitude of the primary in V band
20- 25 F6.3 mag Vmag2 Apparent magnitude of the secondary in V band
27- 32 F6.3 mag DeltaV Magnitude difference between the two components
34- 39 F6.3 mag VMAG Composite absolute magnitude in V band
without interstellar extinction
41- 46 F6.3 mag VMAG1 Absolute magnitude of the primary in V band
without interstellar extinction
48- 53 F6.3 mag VMAG2 Absolute magnitude of the secondary in V band
without interstellar extinction
55- 65 F11.7 deg GLAT Galactic latitude in degrees
67- 77 F11.9 mag AV Interstellar extinction in magnitudes
79- 89 F11.9 mag E(B-V) Interstellar reddening
91- 96 F6.3 mag VMAGc Composite absolute magnitude in V band
with interstellar extinction
98-103 F6.3 mag VMAGc1 Primary absolute magnitude in V band
with interstellar extinction
105-110 F6.3 mag VMAGc2 Secondary absolute magnitude in V band
with interstellar extinction
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- HD HD catalog number
8- 9 A2 --- SpType1 Spectral Type of the primary
11- 13 A3 --- Lum1 Class of the luminosity of the primary
15- 16 A2 --- SpType2 Spectral Type of the secondary
18- 20 A3 --- Lum2 Class of the luminosity of the secondary
22- 29 F8.2 K Teff1 Effective Temperature of the primary
31- 38 F8.2 K Teff2 Effective Temperature of the secondary
40- 44 F5.2 --- B-V1 Colour index (B-V) of the primary
46- 50 F5.2 --- B-V2 Colour index (B-V) of the secondary
52- 56 F5.2 --- V-R1 ?=- Colour index (V-R) of the primary
58- 62 F5.2 --- V-R2 ?=- Colour index (V-R) of the secondary
64- 68 F5.2 --- BC1 Bolometric Correction of the primary
70- 74 F5.2 --- BC2 Bolometric Correction of the secondary
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Byte-by-byte Description of file: table1?.dat table1?.txt
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- HD HD catalog number
8 A1 --- l_M Limit flag on Mass
9- 13 F5.2 Msun M Mass
15- 18 F4.2 Msun e_M ? Error on mass
20- 24 F5.2 [Lsun] logL ? The logarithm of luminosity
26- 29 F4.2 [Lsun] e_logL ? Error on the logarithm of luminosity
31- 34 F4.2 [K] logTeff ? The logarithm of effective temperature
36- 39 F4.2 [K] e_logTeff ? Error on the logarithm of effective
temperature
41- 45 F5.2 [yr] logage ? The logarithm of age
47- 50 F4.2 [yr] e_logage ? Error on the logarithm of effective
temperature
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Acknowledgements:
Luca Piccotti, l.piccotti(at)usc.es
(End) Patricia Vannier [CDS] 21-Dec-2019