J/A+A/657/A87 CASCADES I. Sample definition and first results (Ottoni+, 2022)
CORALIE radial-velocity search for companions around evolved stars (CASCADES)
I. Sample definition and first results: Three new planets orbiting giant stars.
Ottoni G., Udry S., Segransan D., Buldgen G., Lovis C., Eggenberger P.,
Pezzotti C., Adibekyan V., Marmier M., Mayor M., Santos N.C., Sousa S.G.,
Lagarde N., Charbonnel C.
<Astron. Astrophys. 657, A87 (2022)>
=2022A&A...657A..87O 2022A&A...657A..87O (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Exoplanets ; Stars, giant ;
Abundances, [Fe/H] ; Effective temperatures ; Magnitudes ;
Parallaxes, trigonometric ; Stars, masses
Keywords: techniques: radial velocities - planets and satellites: detection -
(stars:) planetary systems -
Abstract:
Following the first discovery of a planet orbiting a giant star in
2002, we started the CORALIE radial-velocity search for companions
around evolved stars (CASCADES). We present the observations of three
stars conducted at the 1.2m Leonard Euler Swiss telescope at La Silla
Observatory, Chile, using the CORALIE spectrograph.
We aim to detect planetary companions to intermediate-mass G- and K-
type evolved stars and perform a statistical analysis of this
population. We searched for new planetary systems around the stars
HD22532 (TIC200851704), HD64121 (TIC264770836), and HD69123
(TIC146264536). We have followed a volume-limited sample of 641 red
giants since 2006 to obtain high-precision radial-velocity
measurements. We used the Data & Analysis Center for Exoplanets (DACE)
platform to perform a radial-velocity analysis to search for periodic
signals in the line profile and activity indices, to distinguish
between planetary-induced radial-velocity variations and stellar
photospheric jitter, and to search for significant signals in the
radial-velocity time series to fit a corresponding Keplerian model.
In this paper, we present the survey in detail, and we report on the
discovery of the first three planets of the sample around the giant
stars HD22532, HD64121, and HD69123.
Description:
Stellar parameters for the complete sample of the CASCADES survey,
from various sources (see Notes) and from the CASCADES I paper.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 315 641 Stellar parameters for the complete sample
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD Henry Draper Identifier
8- 18 A11 --- SpType Spectral Type (1)
20- 26 F7.5 mag Vmag Magnitude (apparent) in V filter (2)
28- 38 F11.9 mag e_Vmag Uncertainty in Mag (apparent) V filter (2)
40- 46 F7.5 mag B-V Color (B-V) (2)
48- 58 F11.9 mag e_B-V Uncertainty in Color (B-V) (2)
60- 71 F12.9 mag BC ? Bolometric correction (3)
73- 83 F11.9 mag e_BC ? Uncertainty in Bolometric correction (3)
85- 91 F7.4 mas plx ? Parallax (4)
93- 98 F6.4 mas e_plx ? Uncertainty in parallax (4)
100-111 F12.8 pc Dist ? Distance (5)
113-124 F12.9 pc e_Dist ? Lower uncertainty in Distance (5)
126-137 F12.9 pc E_Dist ? Upper uncertainty in Distance (5)
139-150 F12.9 mag VMAG ? Absolute Magnitude in V filter
152-162 F11.9 mag e_VMAG ? Uncertainty in Absolute Magnitude V filter
164-169 F6.4 mag BP-RP ? Gaia color (Bp-Rp) (4)
171-181 F11.9 mag e_BP-RP ? Uncertainty in Gaia color (Bp-Rp) (4)
183-194 F12.9 mag Gmag ? Gaia magnitude in G filter (4)
196-205 F10.8 mag e_Gmag ? Uncertainty in Gaia mag in G filter (4)
207-210 I4 K Teff ? Effective Temperature
212-214 I3 K e_Teff ? Uncertainty in Effective Temperature
216-220 F5.3 [cm/s2] logg ? log of the Surface Gravity
222-226 F5.3 [cm/s2] e_logg ? Uncertainty in log of Surface Gravity
228-233 F6.3 [-] [Fe/H] ? Metallicity
235-239 F5.3 [-] e_[Fe/H] ? Uncertainty in Metallicity
241-251 F11.9 Msun Mass ? Stellar mass
253-263 F11.9 Msun e_Mass ? Uncertainty in Stellar mass
265-277 F13.9 Lsun Lum ? Stellar Luminosity
279-290 F12.9 Lsun e_Lum ? Uncertainty in Stellar Luminosity
292-303 F12.9 Rsun Rad ? Stellar Radius
305-315 F11.9 Rsun e_Rad ? Uncertainty in Stellar Radius
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Note (1): from the HIPPARCOS catalog (1997ESASP1200.....E 1997ESASP1200.....E. Cat. I/239)
Note (2): from the TYCHO-2 catalog (2000A&A...355L..27H 2000A&A...355L..27H, Cat. I/259)
Note (3): from Alonso et al. (1999A&AS..140..261A 1999A&AS..140..261A)
Note (4): from the GAIA Data Release 2 (2018A&A...616A...1G 2018A&A...616A...1G, Cat. I/345)
Note (5): from Bailer-Jones et al. (2018AJ....156...58B 2018AJ....156...58B, Cat. I/347)
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Acknowledgements:
Gael Ottoni, gael.ottoni(at)unige.ch
(End) Gael Ottoni [UNIGE], Patricia Vannier [CDS] 27-Dec-2021