J/A+A/674/A117 TOI-733 HARPS DRS radial velocity curve (Georgieva+, 2023)
TOI-733 b: A planet in the small-planet radius valley orbiting a Sun-like star.
Georgieva I.Y., Persson C.M., Goffo E., Acuna L., Aguichine A.,
Serrano L.M., Lam K.W.F., Gandolfi D., Collins K.A., Howell S.B., Dai F.,
Fridlund M., Korth J., Deleuil M., Barragan O., Cochran W.D., Csizmadia S.,
Deeg H.J., Guenther E., Hatzes A.P., Jenkins J.M., Livingston J., Luque R.,
Mousis O., Osborne H.L.M., Palle E., Redfield S., Van Eylen V.,
Twicken J.D., Winn J.N., Alqasim A., Collins K.I., Gnilka C.L., Latham D.W.,
Lewis H.M., Relles H.M., Ricker G.R., Rowden P., Seager S., Shporer A.,
Tan T.-G., Vanderburg A., Vanderspek R.
<Astron. Astrophys. 674, A117 (2023)>
=2023A&A...674A.117G 2023A&A...674A.117G (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Exoplanets ; Radial velocities ;
Optical
Keywords: planets and satellites: detection -
planets and satellites: composition -
planets and satellites: individual: TOI-733 -
techniques: photometric - techniques: radial velocity
Abstract:
We report the discovery of a hot (Teq∼1055K) planet in the
small-planet radius valley that transits the Sun-like star TOI-733. It
was discovered as part of the KESPRINT follow-up program of TESS
planets carried out with the HARPS spectrograph. TESS photometry from
sectors 9 and 36 yields an orbital period of
Porb=4.884765+1.9e-5-2.4e-5 days and a radius of
Rp=1.992+0.085-0.090R⊕. Multi-dimensional Gaussian process
modelling of the radial velocity measurements from HARPS and activity
indicators gives a semi-amplitude of K=2.23±0.26m/s, translating
into a planet mass of Mp=5.72+0.70+-0.68M⊕. These
parameters imply that the planet is of moderate density
(ρp=3.98+0.77-0.66g/cm3) and place it in the transition
region between rocky and volatile-rich planets with H/He-dominated
envelopes on the mass-radius diagram. Combining these with stellar
parameters and abundances, we calculated planet interior and
atmosphere models, which in turn suggest that TOI-733 b has a
volatile-enriched, most likely secondary outer envelope, and may
represent a highly irradiated ocean world. This is one of only a few
such planets around G-type stars that are well characterised.
Description:
The table contains HARPS DRS radial velocity and activity indicator
data used in the analysis of the paper. Additional activity indicators
extracted with SERVAL and TERRA are also available.
Objects:
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RA (2000) DE Designation(s)
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10 37 38.19 -40 53 18.0 TOI-733 = TIC 106402532
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 162 74 TOI-733 radial velocities and spectral activity
indicators measured from 3.6m/HARPS spectra
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 11 F11.3 d Time Barycentric Julian date (TDB)
13- 24 F12.8 km/s RV-DRS DRS radial velocity
26- 36 F11.9 km/s e_RV-DRS DRS radial velocity error
38- 50 F13.9 km2/s2 dlW Differential line width
52- 62 F11.9 km2/s2 e_dlW Differential line width error
64- 76 F13.9 m/s CRX Chromatic index (in m/s/Np)
78- 89 F12.9 m/s e_CRX Chromatic index error (in m/s/Np)
91-102 F12.9 --- Halpha Hα index
104-115 F12.9 km/s BIS Bisector span
117-127 F11.9 km/s FWHM FWHM of the CCF
129-139 F11.9 --- S-index S-index
141-151 F11.9 --- e_S-index S-index error
153-157 F5.1 --- SNR550nm Signal-to-noise ratio a 550nm
159-162 I4 s ExpTime Exposure time
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Acknowledgements:
Iskra Georgieva, iskra.georgieva(at)chalmers.se
(End) Patricia Vannier [CDS] 10-May-2023