J/A+A/580/A14 Radial Velocities of 3 giant stars with planets (Jones+, 2015)
Giant planets around two intermediate-mass evolved stars and confirmation of the
planetary nature of HIP67851c.
Jones M.I., Jenkins J.S., Rojo P., Olivares F., Melo C.H.F.
<Astron. Astrophys. 580, A14 (2015)>
=2015A&A...580A..14J 2015A&A...580A..14J
ADC_Keywords: Stars, double and multiple ; Stars, giant ; Planets ;
Spectroscopy ; Radial velocities
Keywords: techniques: radial velocities -
planets and satellites: gaseous planets
Abstract:
We present the discovery of two giant planets around the
intermediate-mass evolved star HIP65891 and HIP107773. The best
Keplerian fit to the HIP65891 and HIP107773 radial velocities leads to
the following orbital parameters: P=1084.5d; Mpsini=6.0MJup; e=0.13
and P=144.3d; Mpsini=2.0MJup; e=0.09, respectively. In addition, we
confirm the planetary nature of the outer object orbiting the giant
star HIP67851. The orbital parameters of HIP67851c are: P=2131.8d,
Mpsini=6.0MJup, and e=0.17.
Description:
We present precision radial velocity variations of the evolved stars
HIP65891, HIP67851 and HIP107773. The radial velocities were computed
from FEROS and CHIRON high-resolution optical spectra.
Objects:
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RA (2000) DE Designation(s) (Period)
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13 30 25.27 -58 39 51.7 HIP65891 = HD 117253 (1084.5)
13 53 52.06 -35 18 51.7 HIP67851 = HR 5224 (2131.8)
21 50 00.13 -64 42 45.1 HIP107773 = HR 8331 ( 144.3)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
h65891c.dat 21 26 CHIRON radial velocities of HIP65891
h65891f.dat 21 23 FEROS radial velocities of HIP65891
h67851c.dat 21 45 CHIRON radial velocities of HIP67851
h67851f.dat 21 28 FEROS radial velocities of HIP67851
h107773c.dat 21 36 CHIRON radial velocities of HIP107773
h107773f.dat 21 27 FEROS radial velocities of HIP107773
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Byte-by-byte Description of file: h*.dat
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Bytes Format Units Label Explanations
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1- 9 F9.4 d JD Julian Date (JD-2450000)
11- 16 F6.1 m/s RV Radial Velocity
18- 21 F4.1 m/s e_RV rms uncertainty in Radial velocity
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Acknowledgements:
Matias I. Jones, mjones(at)aiuc.puc.cl
(End) Patricia Vannier [CDS] 06-Jul-2015