J/A+A/537/A117 Velocity curves of SW CMa and HW CMa (Torres+, 2012)
Absolute dimensions of eclipsing binaries.
XXIX. The Am-type systems SW Canis Majoris and HW Canis Majoris.
Torres G., Clausen J.V., Bruntt H., Claret A., Andersen J., Nordstrom B.,
Stefanik R.P., Latham D.W.
<Astron. Astrophys. 537, A117 (2012)>
=2012A&A...537A.117T 2012A&A...537A.117T
ADC_Keywords: Binaries, eclipsing ; Stars, Am ; Radial velocities
Keywords: binaries: eclipsing - stars: fundamental parameters -
stars: abundances - stars: chemically peculiar -
stars: individual: SW CMa - stars: individual: HW CMa
Abstract:
Accurate physical properties of eclipsing stars provide important
constraints on models of stellar structure and evolution, especially
when combined with spectroscopic information on their chemical
composition. Empirical calibrations of the data also lead to accurate
mass and radius estimates for exoplanet host stars. Finally, accurate
data for unusual stellar subtypes, such as Am stars, also help to
unravel the cause(s) of their peculiarities.
We aim to determine the masses, radii, effective temperatures,
detailed chemical composition and rotational speeds for the Am-type
eclipsing binaries SWCMa (A4-5m) and HWCMa (A6m) and compare them with
similar normal stars.
Description:
Radial velocity measurements for SW CMa and HW CMa based on
observations obtained at telescopes of the Harvard-Smithsonian Center
for Astrophysics, along with the corresponding residuals from the
spectroscopic orbits.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 62 2 Observed stars
tablea1.dat 55 41 Radial velocities for SW CMa
tablea2.dat 55 48 Radial velocities for HW CMa
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See also:
J/A+A/487/1081 : uvby phot. of HW CMa & 5 eclipsing binaries (Clausen+, 2008)
J/A+A/461/1077 : Radial velocities of DW Car (Southworth+, 2007)
J/A+A/469/285 : Differential Stroemgren photometry of U Oph (Vaz+, 2007)
J/A+A/487/1095 : Radial velocities of AD Boo, VZ Hya, WZ Oph (Clausen+, 2008)
J/A+A/516/A42 : Spectral lines of BK Peg and BW Aqr (Clausen+, 2010)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Name Star name
8- 9 I2 h RAh Simbad Hour of Right Ascension (J2000.0)
11- 12 I2 min RAm Simbad Minute of Right Ascension (J2000.0)
14- 17 F4.1 s RAs Simbad Second of Right Ascension (J2000.0)
19 A1 --- DE- Simbad Sign of the Declination (J2000.0)
20- 21 I2 deg DEd Simbad Degree of Declination (J2000.0)
23- 24 I2 arcmin DEm Simbad Arcminute of Declination (J2000.0)
26- 27 I2 arcsec DEs Simbad Arcsecond of Declination (J2000.0)
29- 32 F4.2 mag Bmag Simbad B band magnitude
34- 38 A5 --- SpType Simbad MK spectral type
41- 50 F10.7 d Per Adopted period
52- 62 A11 --- FileName Name of the file with radial velocity
measurements
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Byte-by-byte Description of file: tablea1.dat tablea2.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD HJD
14- 19 F6.4 --- Phase Orbital phase
21- 26 F6.2 km/s RV1 Velocity of primary star (1)
28- 33 F6.2 km/s RV2 Velocity of secondary star (1)
35- 38 F4.2 km/s e_RV1 Velocity error for primary star (1)
40- 43 F4.2 km/s e_RV2 Velocity error for secondary star (1)
45- 49 F5.2 km/s Res1 Velocity residual for primary star (1)
51- 55 F5.2 km/s Res2 Velocity residual for secondary star (1)
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Note (1): The radial velocity measurements include all corrections
described in the text.
* For SW CMa, the primary star is the more massive component.
* For HW CMa, the secondary star is the more massive component.
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Acknowledgements:
Guillermo Torres, torres(at)cfa.harvard.edu
References:
Andersen et al., Paper I 1983A&A...121..271A 1983A&A...121..271A, QX Car
Andersen et al., Paper II 1983A&A...128...17A 1983A&A...128...17A, V Pup
Andersen & Vaz, Paper III 1984A&A...130..102A 1984A&A...130..102A, KM Hyd
Vaz & Andersen, Paper IV 1984A&A...132..219V 1984A&A...132..219V, PV Pup
Andersen et al., Paper V 1984A&A...134..147A 1984A&A...134..147A, VV Pyx
Andersen et al., Paper VI 1984A&A...137..281A 1984A&A...137..281A, DM Vir
Andersen & Gimenez, Paper VII 1985A&A...145..206A 1985A&A...145..206A, V1647 Sge
Andersen et al., Paper VIII 1985A&A...151..329A 1985A&A...151..329A, V760 Sco
Popper et al., Paper IX 1985AJ.....90.1324P 1985AJ.....90.1324P, RGZ CMa
Andersen et al., Paper X 1987A&A...174..107A 1987A&A...174..107A, V1143 Cyg
Clausen et al., Paper XI 1986A&A...167..287C 1986A&A...167..287C, V451 Oph
Andersen et al., Paper XII 1987A&A...175...60A 1987A&A...175...60A, TZ Men
Andersen et al., Paper XIII 1988A&A...196..128A 1988A&A...196..128A, AI Phe
Andersen et al., Paper XIV 1989A&A...211..346A 1989A&A...211..346A, UX Men
Andersen & Clausen, Paper XV 1989A&A...213..183A 1989A&A...213..183A, EM Car
Andersen et al., Paper XVI 1990A&A...228..365A 1990A&A...228..365A, V1031 Ori
Andersen et al., Paper XVII 1991A&A...246...99A 1991A&A...246...99A, TZ For
Clausen & Gimenez, Paper XVIII 1991A&A...241...98C 1991A&A...241...98C, CW Cep
Clausen, Paper XIX 1991A&A...246..397C 1991A&A...246..397C, BW Aqr
Andersen et al., Paper XX 1993A&A...277..439A 1993A&A...277..439A, GG Lup
Alencar et al., Paper XXI 1997A&A...326..709A 1997A&A...326..709A, V906 Sco
Torres et al., Paper XXII 1997AJ....114.2764T 1997AJ....114.2764T, HS Hyd
Torres et al., Paper XXIII 2000AJ....119.1942T 2000AJ....119.1942T, EI Cep
Southworth & Clausen, Paper XXIV 2007A&A...461.1077S 2007A&A...461.1077S, DW Car
Vaz et al., Paper XXV 2007A&A...469..285V 2007A&A...469..285V, U Oph
Clausen et al., Paper XXVI 2008A&A...487.1095C 2008A&A...487.1095C, AD Boo, VZ Hyd, WZ Oph
Clausen et al., Paper XXVII 2010A&A...510A..91C 2010A&A...510A..91C, V1130 Tau
Clausen et al., Paper XXVIII 2010A&A...516A..42C 2010A&A...516A..42C, BK Peg, BW Aqr
(End) Patricia Vannier [CDS] 08-Dec-2011