J/PASP/128/F4401 newly discovered planets from WASP-South (Turner+, 2016)
WASP-120 b, WASP-122 b, AND WASP-123 b:
Three newly discovered planets from the WASP-South survey.
Turner O.D., Anderson D.R., Cameron A.Collier , Delrez L., Evans D.F.,
Gillon M., Hellier C., Jehin E., Lendl M., Maxted P.F.L., Pepe F.,
Pollacco D., Queloz D., Segransan D., Smalley B., Smith A.M.S.,
Triaud A.H.M.J., Udry S., West R.G.
<Publ. Astron. Soc. Pac. 128, 064401 (2016)>
=2016PASP..128f4401T 2016PASP..128f4401T (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Planets ; Photometry ; Radial velocities
Keywords: planets and satellites: individual (WASP-120b, WASP-122b, WASP-123b)
Abstract:
We present the discovery by the WASP-South survey of three planets
transiting moderately bright stars (V∼11). WASP-120 b is a massive
(4.85 M Jup) planet in a 3.6-day orbit that we find likely to be
eccentric (e=0.059-0.018+0.025) around an F5 star. WASP-122 b is a hot
Jupiter (1.28MJup, 1.74RJup) in a 1.7-day orbit about a G4 star.
Our predicted transit depth variation caused by the atmosphere of
WASP-122 b suggests it is well suited to characterization. WASP-123 b
is a hot Jupiter (0.90MJup, 1.32RJup) in a 3.0-day orbit around an
old (∼7Gyr) G5 star.
Description:
Lightcurves and radial velocity data of three newly discovered planets
from the WASP-South survey. Discovery data come from the WASP-South
telescope (SAAO, South Africa) with follow-up lightcurves from the
TRAPPIST telescope and EulerCam on the Swiss telescope (La Silla,
Chile). Radial velocity data are from the CORALIE spectrograph on the
Swiss telescope.
Objects:
----------------------------------------------------------
RA (2000) DE Designation(s)
----------------------------------------------------------
04 10 27.85 -45 53 53.5 WASP-120 = USNOB 0441-0033568
07 13 12.34 -42 24 35.1 WASP-122 = USNOB 0475-0113097
19 17 55.04 -32 51 35.8 WASP-123 = USNOB 0571-1147509
----------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
stars.dat 70 3 List of studied stars
w120disc.dat 32 27079 WASP-South photometry for WASP-120
w122disc.dat 32 4834 WASP-South photometry for WASP-122
w123disc.dat 32 13267 WASP-South photometry for WASP-123
phot.dat 90 3985 Follow-up photometry from TRAPPIST and EulerCam
rv.dat 46 66 Radial velocity data from CORALIE
--------------------------------------------------------------------------------
Byte-by-byte Description of file: stars.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 A8 --- Name Target name
10- 11 I2 h RAh Right ascension (J2000)
13- 14 I2 min RAm Right ascension (J2000)
16- 20 F5.2 s RAs Right ascension (J2000)
22 A1 --- DE- Declination sign (J2000)
23- 24 I2 deg DEd Declination (J2000)
26- 27 I2 arcmin DEm Declination (J2000)
29- 32 F4.1 arcsec DEs Declination (J2000)
34- 37 F4.1 mag Vmag V magnitude
39- 40 A2 --- SpType MK spectral type
42- 50 F9.7 d Per Period
52- 60 F9.7 d e_Per Error on Per (lower value)
62- 70 F9.7 d E_Per Error on Per (upper value)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: w120disc.dat w122disc.dat w123disc.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 F13.8 d HJD Heliocentric Julian date (HJD-2450000) (UTC)
15- 23 F9.6 mag mag Relative Instrumental Magnitude
25- 32 F8.6 mag e_mag Magnitude error
--------------------------------------------------------------------------------
Byte-by-byte Description of file: phot.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 F11.6 d HJD Heliocentric Julian date (HJD-2450000) (UTC)
13- 20 F8.6 --- Flux Normalised Flux
22- 29 F8.6 --- e_Flux Flux Error
31- 36 F6.2 pix dX Shift from initial X position
38- 43 F6.2 pix dY Shift from initial Y position
45- 49 F5.2 --- Airmass Airmass
51- 55 F5.2 pix FWHM Target FWHM
57- 62 F6.2 --- SkyBg Background counts (in ADU units)
64- 68 F5.2 s ExpT Exposure time
70- 77 A8 --- Target Target name (1)
79- 86 A8 --- Inst Instrument used (EulerCam or TRAPPIST)
88- 90 A3 --- Band Observational band (z, IC, RG or I+z)
--------------------------------------------------------------------------------
Note (1): The WASP-120 lightcurve from JD 2456609 has a meridian flip during the
observation after HJD 6609.724960. Likewise, the WASP-122 lightcurve from
JD 2456644 has a meridian flip during the observation after HJD 6644.757390.
During analysis we choose to treat the data before and after as separate
data sets.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: rv.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 F11.6 d HJD Heliocentric Julian date (HJD-2450000) (UTC)
13- 20 F8.5 km/s RV Observed radial velocity
22- 28 F7.5 km/s e_RV RV error
30- 37 F8.5 km/s BS Bisector Span
39- 46 A8 --- Target Target name
--------------------------------------------------------------------------------
Acknowledgements:
Olivier Turner, o.d.turner(at)keele.ac.uk
(End) Patricia Vannier [CDS] 23-Feb-2017