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J/A+A/603/L5        HD106315c I light curve                       (Lendl+, 2017)

Ground-based photometry of the 21-day Neptune HD106315c. Lendl M., Ehrenreich D., O.D.Turner, Bayliss D., Blanco-Cuaresma S., Giles H., Bouchy F., Marmier M., Udry S. <Astron. Astrophys. 603, L5 (2017)> =2017A&A...603L...5L (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry ; Radial velocities Keywords: techniques: photometric - planets and satellites: detection - planet and satellites: individual: HD 106315c Abstract: Space-based transit surveys such as K2 and the Transiting Exoplanets Survey Satellite (TESS) allow the detection of small transiting planets with orbital periods greater than 10 days. Few of these warm Neptunes are currently known around stars bright enough to allow for detailed follow-up observations dedicated to their atmospheric characterization. The 21-day period and 3.95REarth planet HD106315c has been discovered by K2 based on the observation of two of its transits. We observed HD 106315 using the 1.2m Euler telescope equipped with the EulerCam camera on two occasions to confirm the transit using broadband photometry and refine the planetary period. Based on two observed transits of HD106315c, we detect its ∼1mmag transit and obtain a precise measurement of the planetary ephemerides, which are critical for planning further follow-up observations. We used the attained precision together with the predicted yield from the TESS mission to evaluate the potential for ground-based confirmation of Neptune-sized planets found by TESS. We find that one-meter class telescopes on the ground equipped with precise photometers could substantially contribute to the follow-up of 162 TESS candidates orbiting stars with magnitudes of V<14. Of these candidates, 74 planets orbit stars with V<12 and 12 planets orbit V<10, which makes them high-priority objects for atmospheric characterization with high-end instrumentation. Description: We present photometric time-series obtained with EulerCam during two transits of HD106315c. Objects: ---------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------- 12 13 53.394 -00 23 36.54 HD106315 = BD+00 2910 ---------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file lc.dat 81 786 EulerCam relative photometry (I Cousins filter)
Byte-by-byte Description of file: lc.dat
Bytes Format Units Label Explanations
1- 11 F11.6 d HJD Heliocentric Julian Date (-2450000) 13- 21 F9.6 --- Flux Normalized Flux (in Cousins I band) 24- 31 F8.6 --- e_Flux Normalized Flux error 33- 38 F6.2 pix xshi Pixel shift in x-direction 40- 45 F6.2 pix yshi Pixel shift in y-direction 48- 56 F9.3 --- Max Maximum target counts (ADU units) 59- 63 F5.2 pix FWHM Stellar Full-Width at Half Maximum 67- 72 F6.2 --- Sky Sky level (Flux) 77- 81 F5.2 s ExpTime Exposure time
Acknowledgements: Monika Lendl, monika.lendl(at)
(End) Patricia Vannier [CDS] 22-Jun-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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