J/ApJ/701/764 Light curves for five M-dwarf stars (Fernandez+, 2009)
Mass and radius determinations for five transiting M-dwarf stars.
Fernandez J.M., Latham D.W., Torres G., Everett M.E., Mandushev G.,
Charbonneau D., O'Donovan F.T., Alonso R., Esquerdo G.A.,
Hergenrother C.W., Stefanik R.P.
<Astrophys. J., 701, 764-775 (2009)>
=2009ApJ...701..764F 2009ApJ...701..764F
ADC_Keywords: Binaries, spectroscopic ; Photometry ; Stars, M-type ;
Stars, F-type
Keywords: binaries: eclipsing - binaries: spectroscopic - stars: rotation -
stars: fundamental parameters - stars: low-mass, brown dwarfs
Abstract:
We have derived masses and radii for both components in five
short-period single-lined eclipsing binary stars discovered by the
TrES wide-angle photometric survey for transiting planets. All these
systems consist of a visible F-star primary and an unseen M-star
secondary (MA≥0.8M☉, MB≤0.45M☉). The spectroscopic
orbital solution combined with a high-precision transit light curve
for each system gives sufficient information to calculate the density
of the primary star and the surface gravity of the secondary. The
masses of the primary stars were obtained using stellar evolution
models, which requires accurate determinations of metallicities and
effective temperatures.
Description:
We selected five planetary candidates detected during regular
operations of the Trans-Atlantic Exoplanet Survey network (TrES)
between the years 2003 and 2008.
To provide a high-quality light curve for the analysis of the primary
eclipse of each system, we used KeplerCam on the 1.2m telescope at
the Fred L. Whipple Observatory on Mount Hopkins, Arizona.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 61 5 Target parameters (table 1 and 7 for the periods)
table9.dat 43 2416 KeplerCam light curves
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See also:
V/122 : SB9: 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2005)
J/AJ/135/850 : Properties of eclipsing binaries found in TrES (Devor+, 2008)
J/ApJ/696/1950 : Sloan iz light curves of HAT-P-10 (Bakos+, 2009)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- [FLT2009] Object name
14- 15 I2 h RAh Hour of right ascension (J2000)
17- 18 I2 min RAm Minute of right ascension (J2000)
20- 23 F4.1 s RAs Second of right ascension (J2000)
25 A1 --- DE- Sign of declination (J2000)
26- 27 I2 deg DEd Degree of declination (J2000)
29- 30 I2 arcmin DEm Arcminute of declination (J2000)
32- 33 I2 arcsec DEs Arcsecond of declination (J2000)
35- 38 F4.1 mag Vmag Apparent visual magnitude
40- 43 F4.2 mag J-Ks 2MASS J-Ks color index
45- 52 F8.6 d Per Period
54- 61 F8.6 d e_Per Period uncertainty
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Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- [FLT2009] Object name
14 A1 --- Filt [iz] Filter used (Sloan i and z bands)
16- 29 F14.6 d HJD Heliocentric Julian Date of the observation
31- 36 F6.4 --- RFlux Relative flux in Filt
38- 43 F6.4 --- e_RFlux The 1σ error in RFlux
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 08-Sep-2011