J/A+A/591/A55 Five transiting hot Jupiters discovered using WASP (Maxted+, 2016)
Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST:
WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b.
Maxted P.F.L., Anderson D.R., Collier Cameron A., Delrez L., Gillon M.,
Hellier C., Jehin E., Lendl M., Neveu-VanMalle M., Pepe F., Pollacco D.,
Queloz D., Segransan D., Smalley B.,Smith A.M.S., Southworth J.,
Triaud A.H.M.J., Udry S., Wagg T., West R.G.
<Astron. Astrophys. 591, A55 (2016)>
=2016A&A...591A..55M 2016A&A...591A..55M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Planets ; Radial velocities ;
Photometry
Keywords: planetary systems
Abstract:
We have used photometry from the WASP-South instrument to identify 5
stars showing planet-like transits in their light curves. The
planetary nature of the companions to these stars has been confirmed
using photometry from the EulerCam instrument on the Swiss Euler 1.2-m
telescope and the TRAPPIST telescope, and spectroscopy obtained with
the CORALIE spectrograph. The planets discovered are hot Jupiter
systems with orbital periods in the range 2.17 to 5.75 days, masses
from 0.3M{Jup} to 1.2M{Jup} and with radii from 1R{Jup} to
1.5R{Jup}. These planets orbit bright stars (V=11-13) with spectral
types in the range F9 to G4. WASP-126 is the brightest planetary
system in this sample and hosts a low-mass planet with a large radius
(0.3M{Jup}, 0.95R{Jup}), making it a good target for transmission
spectroscopy. The high density of WASP-129 A suggests that it is a
helium-rich star similar to HAT-P-11 A. WASP-133 has an enhanced
surface lithium abundance compared to other old G-type stars,
particularly other planet host stars. These planetary systems are good
targets for follow-up observations with ground-based and space-based
facilities to study their atmospheric and dynamical properties.
Description:
WASP-South planet candidates are followed up using the TRAPPIST
robotic photometer and the CORALIE spectrograph and EulerCam
photometer on the Swiss Euler 1.2-m telescope at La Silla.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 127 5 Stellar parameters
table2.dat 38 97029 Photometry
table3.dat 43 102 Radial velocities
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [WASP]
6- 8 I3 --- WASP WASP number
10- 15 A6 --- --- [1SWASP]
17- 35 A19 --- 1SWASP 1SWASP name (JHHMMSS.ss+DDMMSS.s) (1)
37- 41 A5 --- --- [2MASS]
43- 60 A18 --- 2MASS 2MASS name (JHHMMSSss+DDMMSSs)
61- 62 A2 --- SpType MK spectral type
64- 67 F4.1 mag Vmag V magnitude (2)
69- 71 F3.1 mag e_Vmag rms uncertainty on Vmag
73- 76 I4 K Teff Effective temperature
78- 80 I3 K e_Teff rms uncertainty on Teff
82- 84 F3.1 [cm/s2] logg Surface gravity
86- 89 F4.2 [cm/s2] e_logg rms uncertainty on logg
91- 93 F3.1 km/s vsini Rotational velocity
95- 97 F3.1 km/s e_vsini rms uncertainty on vsini
99-103 F5.2 [-] [Fe/H] Metallicity
105-108 F4.2 [-] e_[Fe/H] rms uncertainty on [Fe/H]
110-113 F4.2 [-] logA(Li) Lithium abundance
115-118 F4.2 [-] e_logA(Li) rms uncertainty on logA(Li)
120-127 F8.6 d Per Period (from table6 of the paper)
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Note (1): The 1SWASP identifier provides the J2000.0 coordinates of the star
taken from the USNO-B1.0 catalogue (Monet et al., 2003, Cat. I/284).
Note (2): The V magnitude is based on the estimated apparent Gaia G magnitude
from Smart (2014A&A...570A..87S 2014A&A...570A..87S, Cat. I/324) and the transformation V-G from
Jordi et al. (2010, Cat. J/A+A/523/A48) assuming V-IC∼0.7 for all stars.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- WASP WASP identification number of the star
5 A1 --- Source [WTE] Source of the observations (1)
7- 10 A4 --- Filter Filter used for the photometry (2)
12- 21 F10.5 d Date UTS date of the observation (HJD-2450000)
23- 29 F7.4 mag delta-m Relative apparent magnitude
31- 36 F6.4 mag e_delta-m Standard error on delta-m
38 I1 --- Flip [0,1] Meridan flip flag (3)
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Note (1): Source of the observations as follows:
W = WASP-South
T = TRAPPIST
E = EulerCam
Note (2): Filter used for the photometry as follows"
WASP = 400-700nm for all stars
NIR = Astrodon NIR 700nm cut-on luminance (for WASP 119 and 129)
Exo = Astrodon ExoPlanet-BB (for WASP 124 and 133)
NGTS = EulerCam NGTS (for WASP 124, 129 and 133)
z_p = z' (for WASP 126)
Gunn = Gunn R (for WASP 126)
I_C = Cousins I_C (for WASP 129)
Note (3): Flip is a flag that is set to the value 1 for the first observation
after a meridian flip with the TRAPPIST telescope
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- WASP WASP identification number of the star
5- 16 F12.6 d Date URC date of observation (BJD(UTC)-2400000) (1)
18- 26 F9.5 km/s RV Radial velocity
28- 34 F7.5 km/s e_RV Standard error on RV
36- 43 F8.5 km/s BS Bisector span (2)
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Note (1): Times of mid-exposure are only accurate to a few minutes.
Note (2): The standard error on the bisector span (BS) measurement is twice
the standard error on the RV (e_RV).
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Acknowledgements:
Pierre Maxted, p.maxted(at)keele.ac.uk
(End) Pierre Maxted [Keele University, UK], Patricia Vannier [CDS] 28-Apr-2016