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J/MNRAS/426/1507    Detached M dwarf eclipsing binaries in WTS   (Birkby+, 2012)

Discovery and characterization of detached M dwarf eclipsing binaries in the WFCAM Transit Survey. Birkby J., Nefs B., Hodgkin S., Kovacs G., Sipocz B., Pinfield D., Snellen I., Mislis D., Murgas F., Lodieu N., De Mooij E., Goulding N., Cruz P., Stoev H., Cappetta M., Palle E., Barrado D., Saglia R., Martin E., Pavlenko Y. <Mon. Not. R. Astron. Soc., 426, 1507-1532 (2012)> =2012MNRAS.426.1507B
ADC_Keywords: Surveys ; Binaries, eclipsing ; Stars, dwarfs ; Stars, M-type ; Photometry Keywords: surveys - binaries: eclipsing - stars: fundamental parameters - stars: late-type - stars: magnetic field - stars: rotation Abstract: We report the discovery of 16 detached M dwarf eclipsing binaries (MEBs) with J<16mag and provide a detailed characterization of three of them, using high-precision infrared light curves from the WFCAM Transit Survey (WTS). Such systems provide the most accurate and model-independent method for measuring the fundamental parameters of these poorly understood yet numerous stars, which currently lack sufficient observations to precisely calibrate stellar evolution models. Description: We identified our new MEBs using observations from the WTS (WFCAM Transit Survey). The WTS is an ongoing photometric monitoring campaign that operates on the 3.8-m United Kingdom Infrared Telescope (UKIRT) at Mauna Kea, Hawaii. The survey began on 2007 August 5, and the eclipsing systems presented in this paper are all found in just one of the four WTS fields. Photometric follow-up observations to help test and refine our light-curve models were obtained in the Sloan i band using the Wide-Field Camera (WFC) on the 2.5-m INT at Roque de Los Muchachos, La Palma. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table6.dat 223 3 A summary of photometric properties for the three M dwarf eclipsing binaries (MEBs) tablea1.dat 98 13 The first release of the WFCAM Transit Survey (WTS) M dwarf Eclipsing Binary Catalogue detailing the remaining MEBs in the WTS 19hr field with J≤16mag that are not characterized in this paper table1.dat 53 3590 The WTS J-band light curves of 19b-2-01387, 19c-3-01405 and 19e-3-08413 table2.dat 53 291 INT i-band follow-up light curves of 19b-2-01387 and 19e-3-08413 table3.dat 53 191 IAC80 g-band follow-up light curve of 19e-3-08413 tablea2.dat 53 11632 The WTS J-band light curves for the remainder of the WTS MEB catalogue given in Table A1
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Name 13- 14 I2 h RAh Right ascension (J2000) 16- 17 I2 min RAm Right ascension (J2000) 19- 22 F4.1 s RAs Right ascension (J2000) 24 A1 --- DE- Declination sign (J2000) 25- 26 I2 deg DEd Declination (J2000) 28- 29 I2 arcmin DEm Declination (J2000) 31- 34 F4.1 arcsec DEs Declination (J2000) 36- 45 F10.8 d Per Period 47- 56 F10.8 d e_Per rms uncertainty on Per 58- 71 F14.6 d T0 Epoch (HJD) 73- 80 F8.6 d e_T0 rms uncertainty on T0 82- 87 F6.3 arcsec/yr pmRA Proper motion along RA, pmRA*cosDE 89- 93 F5.3 arcsec/yr e_pmRA rms uncertainty on pmRA 95-100 F6.3 arcsec/yr pmDE Proper motion along DE 102-106 F5.3 arcsec/yr e_pmDE rms uncertainty on pmDE 108-113 F6.3 mag gmag SDSS g magnitude (AB system) 115-119 F5.3 mag e_gmag rms uncertainty on gmag 121-126 F6.3 mag rmag SDSS r magnitude (AB system) 128-132 F5.3 mag e_rmag rms uncertainty on rmag 134-139 F6.3 mag imag SDSS i magnitude (AB system) 141-145 F5.3 mag e_imag rms uncertainty on imag 147-152 F6.3 mag zmag SDSS z magnitude (AB system) 154-158 F5.3 mag e_zmag rms uncertainty on zmag 160-165 F6.3 mag Zmag UKIRT/WFCAM Z magnitude (Vega system) 167-171 F5.3 mag e_Zmag rms uncertainty on Zmag 173-178 F6.3 mag Ymag UKIRT/WFCAM Y magnitude (Vega system) 180-184 F5.3 mag e_Ymag rms uncertainty on Ymag 186-191 F6.3 mag Jmag UKIRT/WFCAM J magnitude (Vega system) 193-197 F5.3 mag e_Jmag rms uncertainty on Jmag 199-204 F6.3 mag Hmag UKIRT/WFCAM H magnitude (Vega system) 206-210 F5.3 mag e_Hmag rms uncertainty on Hmag 212-217 F6.3 mag Kmag UKIRT/WFCAM K magnitude (Vega system) (1) 219-223 F5.3 mag e_Kmag rms uncertainty on Kmag
Note (1): Note that the WFCAM K-band magnitude for 19b-2-01387 was obtained during an eclipse event and does not represent the total system magnitude.
Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Name (1) 13- 21 F9.5 deg RAdeg Right ascension in decimal degrees (J2000) 23- 31 F9.6 deg DEdeg Declination in decimal degrees (J2000) 33- 35 I3 --- Nep Number of epochs 37- 40 F4.1 mmag rms rms scatter 42- 49 F8.6 d Per Period 51- 63 F13.5 d T0 Epoch (HJD) 65- 70 F6.3 mag Jmag UKIRT/WFCAM J magnitude (Vega) 72- 76 F5.3 mag e_Jmag rms uncertainty on Jmag 78- 83 F6.3 mag imag SDSS i magnitude (Vega) 85- 89 F5.3 mag e_imag rms uncertainty on imag 91- 94 I4 K Teff Effective temperature, SED 96- 98 I3 K e_Teff rms uncertainty on Teff
Note (1): Note that 19g-4-02069 is the subject for a near future publication by Nefs et al. (in preparation) using RV follow-up from GNIRS/GEMINI. Please see appendix text for caveats on the quoted ephemerides.
Byte-by-byte Description of file: table[123].dat tablea2.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Name 14- 29 F16.8 d JD Julian date 32- 40 F9.6 mag mag Magnitude in Filt 44- 51 F8.6 mag e_mag rms uncertainty on mag 53 A1 --- Filt [Jig] Filter: J (WTS), i (INT), g (IAC80)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 09-Apr-2013
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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