J/A+A/594/A50 K2-30 b and K2-34 b K2 light curves (Lillo-Box+, 2016)
K2-30 b and K2-34 b: two inflated hot-Jupiters around Solar-type stars.
Lillo-Box J., Demangeon O., Santerne A., Barros S.C.C., Barrado D.,
Hebrard G., Osborn H.P., Armstrong D.J., Almenara J.-M., Boisse I.,
Bouchy F., Brown D.J.A., Courcol B., Deleuil M., Delgado Mena E.,
Diaz R.F., Kirk J., Lam K.W.F., McCormac J., Pollacco D., Rajpurohit A.,
Rey J., Santos N.C., Sousa S.G., Tsantaki M., Wilson P.A.
<Astron. Astrophys. 594, A50 (2016)>
=2016A&A...594A..50L 2016A&A...594A..50L (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Planets
Keywords: planets and satellites: detection -
planets and satellites: gaseous planets -
techniques: radial velocities - techniques: photometric -
techniques: high-angular resolution
Abstract:
We report the discovery of the two hot Jupiters K2-30 b and K2-34 b.
The two planets were detected during campaigns 4 and 5 of the
extension of the Kepler mission, K2; they transit their main-sequence
stars with periods of ∼4.099 and ∼2.996 days. Subsequent ground-based
radial velocity follow-up with SOPHIE, HARPS-N, and CAFE established
the planetary nature of the transiting objects. We analyzed the
transit signal, radial velocity, and spectral energy distributions of
the two systems to characterize their properties. Both planets
(K2-30 b and K2-34 b) are bloated hot Jupiters (1.20RJup and
1.22RJup) around relatively bright (V=13.5 and V=11.5) slow rotating
main-sequence (G8 and F9) stars. Thus, these systems are good
candidates for detecting the Rossiter-MacLaughlin effect in order to
measure their obliquity and for atmospheric studies.
Description:
The star K2-30 (EPIC210957318, 03:29:22.07 +22:17:57.9) was observed
by K2 during its campaign 4, between February 7th and April 23rd,
2015. K2-34 (EPIC212110888, 08:30:18.91 +22:14:09.3) belongs to
field-of-view 5, photometrically monitored by K2 between April 27th
and July 10th, 2015. The data was reduced using both the Warwick
(Armstrong et al. 2015A&A...579A..19A 2015A&A...579A..19A, Cat. J/A+A/579/A19) and the
LAM- K2 (Barros et al., 2015MNRAS.454.4267B 2015MNRAS.454.4267B) pipelines. The detrended
data (see Tables 1 and 2) show 1.9% and 0.8% dimmings every 4.099 and
2.996 days for K2-30 and K2-34, respectively (see Figs. 1 and 2).
Objects:
-----------------------------------------------------
RA (2000) DE Designation(s)
-----------------------------------------------------
03 29 22.07 +22 17 59.9 K2-30 = EPIC 210957318
08 30 18.91 +22 14 09.3 K2-34 = EPIC 212110888
-----------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 30 287 Detrended photometric K2 light curve of K2-30
table2.dat 30 417 Detrended photometric K2 light curve of K2-34
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table1.dat table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.6 d BJD Barycentric Julian Date (BJD-2400000)
14- 21 F8.6 --- NFlux Normalized flux
23- 30 F8.6 --- e_NFlux rms uncertainty of NFlux
--------------------------------------------------------------------------------
Acknowledgements:
Jorge Lillo-Box, jlillobo(at)eso.org
(End) Patricia Vannier [CDS] 07-Oct-2016