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J/A+A/610/A20   HITEP. II. Transiting exoplanets imaging          (Evans+, 2018)

High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). II. Lucky Imaging results from 2015 and 2016. Evans D.F., Southworth J., Smalley B., Jorgensen U.G., Dominik M., Andersen M.I., Bozza V., Bramich D.M., Burgdorf M.J., Ciceri S., D'Ago G., Figuera Jaimes R., Gu S.-H., Hinse T.C., Henning Th., Hundertmark M., Kains N., Kerins E., Korhonen H., Kokotanekova R., Kuffmeier M., Longa-Pena P., Mancini L., MacKenzie J., Popovas A., Rabus M., Rahvar S., Sajadian S., Snodgrass C., Skottfelt J., Surdej J., Tronsgaard R., Unda-Sanzana E., von Essen C., Wang Y.-B., Wertz O. <Astron. Astrophys. 610, A20 (2018)> =2018A&A...610A..20E (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Planets ; Exoplanets; Positional data ; Photometry Keywords: planets and satellites: dynamical evolution and stability - planets and satellites: formation - high angular resolution - binaries: visual Abstract: We present the results of the second part of a high resolution imaging survey of hot Jupiter host stars. We search for binary companions to known transiting exoplanet host stars, in order to determine the multiplicity properties of hot Jupiter host stars. We also search for and characterise unassociated stars along the line of sight, allowing photometric and spectroscopic observations of the planetary system to be corrected for contaminating light. Description: Tables 2 and 3 give our observing logs for 2015 and 2016 respectively, giving the time of observation, exposure time, and resulting FWHM for each target. Additionally, our detection limits from 0.5" to 20" are given. Table 4 gives the assumed stellar properties for each target, the reddening value used, and the calculated distance to the system using the literature stellar radius and the 2MASS K-band magnitude. Tables 9 and 10 provide full listings of the detected companions for 2015 and 2016 respectively. Each companion is given an ID, which is consistent between these two tables, and also the previous paper in this series (Evans et al., 2016, Cat. J/A+A/589/A58). Astrometric and photometric measurements are given for each companion, as well as the projected separation and derived properties of the companion star (unless photometry was only obtained in one band), including an estimation of how likely the companion is to be at the same distance as the target star. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 76 45 Observations and detection limits from 2015 table3.dat 76 80 Observations and detection limits from 2016 table4.dat 61 97 Assumed target properties and derived distances table9.dat 104 317 Measurements and derived properties of companions detected in 2015 table10.dat 104 482 Measurements and derived properties of companions detected in 2016
See also: J/A+A/589/A58 : High-resolution imaging of TEP systems (HITEP) (Evans+, 2016) Byte-by-byte Description of file: table2.dat table3.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name Target name 10- 25 A16 --- ObsDate Date and time of observation, UTC 27- 29 I3 s ExpTime Exposure time 31- 34 F4.2 arcsec FWHM FWHM of stellar images in 1% best exposures 36- 40 F5.2 mag Limit005 5-sigma detection limit at 0.5" 42- 46 F5.2 mag Limit008 5-sigma detection limit at 0.8" 48- 52 F5.2 mag Limit015 5-sigma detection limit at 1.5" 54- 58 F5.2 mag Limit025 5-sigma detection limit at 2.5" 60- 64 F5.2 mag Limit050 5-sigma detection limit at 5.0" 66- 70 F5.2 mag Limit100 5-sigma detection limit at 10.0" 72- 76 F5.2 mag Limit200 5-sigma detection limit at 20.0"
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name Target name 10- 13 F4.2 Rsun Rad Stellar radius from TEPCat 15- 18 F4.2 Rsun e_Rad Uncertainty on stellar radius 20- 23 I4 K Teff Stellar effective temperature from TEPCat 25- 27 I3 K e_Teff Uncertainty on stellar effective temperature 29- 33 F5.2 mag Kmag Ks magnitude from 2MASS 35- 38 F4.2 mag e_Kmag Uncertainty on Ks magnitude 40- 44 F5.3 mag E(B-V) ? Estimated E(B-V) reddening for star 46- 50 F5.3 mag e_E(B-V) ? Uncertainty on E(B-V) 52- 56 F5.1 pc Dist Estimated distance 58- 61 F4.1 pc e_Dist Uncertainty on estimated distance
Byte-by-byte Description of file: table9.dat table10.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name Target name 10- 11 I2 --- CompID Companion ID (common with Paper I and table 9/10) 13- 19 F7.4 arcsec Sep Separation between target and companion 21- 26 F6.4 arcsec e_Sep Uncertainty in separation 28- 34 F7.3 deg PA ? Position angle of companion 36- 40 F5.3 deg e_PA ? Uncertainty in position angle 42- 46 I5 AU PrjSep ? Projected separation of companion 48- 52 I5 AU e_PrjSep ? Uncertainty on projected separation 54- 59 F6.2 mag deltaV ? Magnitude relative to target in TCI vis 61- 64 F4.2 mag e_deltaV ? Uncertainty on magnitude in TCI vis 66- 71 F6.2 mag deltaR Magnitude relative to target in TCI red 73- 76 F4.2 mag e_deltaR Uncertainty on magnitude in TCI red 78- 82 F5.2 mag visred ? Vis-Red colour 84- 87 F4.2 mag e_visred ? Uncertainty on Vis-Red colour 89- 93 I5 K Teff ? Estimated stellar temperature from colour 95- 98 I4 K e_Teff ? Uncertainty on stellar temperature 100-104 F5.1 --- sigmaDst ? Probability that companion has same distance as target star (1)
Note (1): The probability is expressed as a "sigma" value. A negative value indicates the companion appears more distant, whilst a positive value indicates the companion appears to be closer. A value near zero indicates the two stars have similar distances, and may form a binary system.
Acknowledgements: Daniel Evans, d.f.evans(at) References: Evans et al., Paper I 2016A&A...589A..58E, Cat. J/A+A/589/A58
(End) Daniel Evans [Keele University, UK], Patricia Vannier [CDS] 25-Sep-2017
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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