J/AJ/164/156 FEROS, HARPS and HIRES radial velocity of HD33142 (Trifonov+, 2022)
A New Third Planet and the Dynamical Architecture of the HD 33142 Planetary
System.
Trifonov T., Wollbold A., Kurster M., Eberhardt J., Stock S., Henning T.,
Reffert S., Butler R.P., Vogt S.S., Reiners A., Lee M.H., Bitsch B.,
Zechmeister M., Rodler F., Perdelwitz V., Tal-Or L., Rybizki J., Heeren P.,
Gandolfi D., Barragan O., Zakhozhay O., Sarkis P., Pinto M.T.,
Kossakowski D., Wolthoff V., Brems S.S., Passegger V.M.
<Astron. J., 164, 156 (2022)>
=2022AJ....164..156T 2022AJ....164..156T
ADC_Keywords: Exoplanets; Stars, giant; Spectra, optical; Radial velocities
Keywords: Exoplanet detection methods ; Exoplanet dynamics
Abstract:
Based on recently-taken and archival HARPS, FEROS, and HIRES radial
velocities (RVs), we present evidence for a new planet orbiting the
first ascent red giant star HD33142 (with an improved mass estimate of
M1.52±0.03M☉), already known to host two planets. We confirm
the Jovian-mass planets HD33142b and c, with periods of
Pb=330.0-0.4+0.4days and Pc=810.2-4.2+3.8days and minimum
dynamical masses of mbsini=1.26-0.05+0.05MJup and
mcsini=0.89-0.05+0.06MJup, respectively. Furthermore, our
periodogram analysis of the precise RVs shows strong evidence for a
short-period Doppler signal in the residuals of a two-planet Keplerian
fit, which we interpret as a third, Saturn-mass planet with
mdsini=0.20-0.03+0.02MJup in a close-in orbit with an orbital
period of Pd=89.9-0.1+0.1days. We study the dynamical behavior of
the three-planet system configuration with an N-body integration
scheme, finding it to be long-term stable with the planets alternating
between low and moderate eccentricity episodes. We also perform N-body
simulations, including stellar evolution and second-order dynamical
effects such as planet-stellar tides and stellar mass loss on the way
to the white dwarf phase. We find that planets HD33142b, c, and d are
likely to be engulfed near the tip of the red giant branch phase due
to tidal migration. These results make the HD33142 system an essential
benchmark for planet population statistics of the multiple-planet
systems found around evolved stars.
Description:
The Fiber-fed Extended Range Optical Spectrograph(FEROS) is an echelle
spectrograph installed at the 2.2m Max Planck Gesellschaft (MPG/ESO)
telescope at ESO's La Silla Observatory, Chile, and has a resolving
power of R=48000. We obtained 27 spectra with FEROS from our survey
and found one additional FEROS spectrum in the ESO archive which was
taken on 2012 February 22.
The High Accuracy Radial velocity Planet Searcher (HARPS) is a precise
cross-dispersed echelle spectrograph installed at the ESO 3.6m
telescope at La Silla Observatory, Chile. It has a spectral resolution
of R=115000 and reaches an RV measurement precision of ∼1m/s. We
obtained 88 high signal-to-noise spectra for HD33142 within our HARPS
survey, and found 10 more HARPS spectra for this star in the ESO
archive.
The High Resolution Echelle Spectrometer (HIRES) is a grating
cross-dispersed echelle spectrograph mounted on the KECK 10m
telescope on Mauna Kea, Hawaii. It has a spectral resolving power of
R=25000-85000, depending on the chosen slit and can reach a precision
of ∼3m/s when the highest resolution is used. We use 40 archival HIRES
spectra taken from 2007 October to 2020 March corresponding to a
temporal baseline of ∼4500days.
Objects:
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RA (2000) DE Designation(s) (Period)
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05 07 35.54 -13 59 11.3 HD33142 = Gaia DR3 2986948238799721216 (P=89.9d)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 99 27 Radial velocity and activity indices of HD 33142
obtained from FEROS
tablea2.dat 137 98 Radial velocity and activity indices of HD 33142
obtained from HARPS
tablea3.dat 42 40 Radial velocity and activity indices of HD 33142
obtained from HIRES
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See also:
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/ApJ/709/168 : Eccentric orbits in exoplanets (Anglada-Escude+, 2010)
J/AJ/143/93 : Rotational velocities in early-M stars (Reiners+, 2012)
J/A+A/574/A50 : Chemical abundances of giants and subgiants (Jofre+, 2015)
J/A+A/580/A14 : Radial Velocities of 3 giant stars with planets (Jones+, 2015)
J/ApJ/821/89 : 12yrs radial velocity obs. of exoplanet systems (Bryan+, 2016)
J/AJ/153/208 : LCES HIRES/Keck radial veloc Exoplanet Survey (Butler+, 2017)
J/MNRAS/480/2846 : 95 RV-discovered single-planet systems (Boisvert+, 2018)
J/ApJ/860/109 : Keck HIRES obs. 245 subgiants (retired Astars) (Ghezzi+, 2018)
J/A+A/616/A33 : Stellar parameters of 372 giant stars (Stock+, 2018)
J/AJ/157/149 : Transit parameters for planets around subgiants (Luhn+, 2019)
J/A+A/628/A39 : Radial velocities of GJ 357 (Luque+, 2019)
J/A+A/627/A49 : Teegarden's Star RV and Hα curves (Zechmeister+, 2019)
J/MNRAS/496/5423 : 4 planet-hosting stars asteroseismic masses (Malla+, 2020)
J/A+A/652/A116 : CARMENES time-resolved CaII H&K catalog (Perdelwitz+, 2021)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 14 F14.5 d BJD [2455879/2458815] Barycentric Julian Date
16- 23 F8.2 m/s RVel [33582/37212] FEROS Radial Velocity
25- 29 F5.2 m/s e_RVel [3/41] Uncertainty in RVel
31- 36 F6.4 --- Ha [0.83/0.89]? Activity indicator, Hα
38- 43 F6.4 --- e_Ha [0/0.005]? Uncertainty in Ha
45- 50 F6.4 --- NaID1 [0.72/0.76]? Activity indicator, NaI D1 line
52- 57 F6.4 --- e_NaID1 [0/0.008]? Uncertainty in NaID1
59- 64 F6.4 --- NaID2 [0.79/0.82]? Activity indicator, NaI D2 line
66- 71 F6.4 --- e_NaID2 [0.001/0.008]? Uncertainty in NaID2
73- 78 F6.4 --- CaIIH [0.03/0.14]? Activity indicator, CaII H line
80- 85 F6.4 --- e_CaIIH [0.00/0.05]? Uncertainty in CaIIH
87- 92 F6.4 --- CaIIK [0.00/0.19]? Activity indicator, CaII K line
94- 99 F6.4 --- e_CaIIK [0.00/0.09]? Uncertainty in CaIIK
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d BJD [2457609/2458755] Barycentric Julian Date
15- 21 F7.3 m/s RVel [-70.8/2.85] HIRES Radial Velocity
23- 27 F5.3 m/s e_RVel [0.3/2] Uncertainty in RVel
29- 35 F7.5 --- Ha [0.45/0.47] Activity indicator, Hα
37- 43 F7.5 --- e_Ha [0/0.002] Uncertainty in Ha
45- 51 F7.5 --- NaID1 [0.23/0.26] Activity indicator, NaI D1 line
53- 59 F7.5 --- e_NaID1 [0/0.002] Uncertainty in NaID1
61- 67 F7.5 --- NaID2 [0.32/0.35] Activity indicator, NaI D2 line
69- 75 F7.5 --- e_NaID2 [0/0.003] Uncertainty in NaID2
77- 82 F6.2 m/s CRX [-20.6/24.4] Chromatic index
84- 88 F5.2 m/s e_CRX [5/14] Uncertainty in CRX
90- 94 F5.2 m2/s2 dLW [-9.29/10.2] differential line width
96- 99 F4.2 m2/s2 e_dLW [0.7/3] Uncertainty in dLW
101-106 F6.4 km/s BIS [0.04/0.06] Bisector inverse slope
108-112 F5.3 km/s e_BIS [0.001] Uncertainty in BIS
114-119 F6.4 km/s FWHM [6.69/6.71] Full-width, half-maximum of
121-125 F5.3 km/s e_FWHM [0.001] Uncertainty in FWHM
127-132 F6.3 --- Cont [6.63/46.8] Contrast of the cross-correlation
function
134-137 F4.2 --- e_Cont [0.01] Uncertainty in Cont
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Byte-by-byte Description of file: tablea3.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d BJD [2454400/2458908] Barycentric Julian Date
15- 20 F6.2 m/s RVel [-57.5/33.5] HIRES Radial Velocity
22- 25 F4.2 m/s e_RVel [1/4] Uncertainty in RVel
27- 33 F7.4 --- S-index [-1/0.14] HIRES S index
35- 42 F8.5 --- H-index [-1/0.04] HIRES H index
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie FIX [CDS], 23-Nov-2022