J/A+A/547/A61 WASP78 and WASP79 RV and photometric data (Smalley+, 2012)
WASP-78b and WASP-79b: Two highly-bloated hot Jupiter-mass exoplanets orbiting
F-type stars in Eridanus.
Smalley B., Anderson D.R., Collier-Cameron A., Doyle A.P., Fumel A.,
Gillon M., Hellier C., Jehin E., Lendl M., Maxted P.F.L., Pepe F.,
Pollacco D., Queloz D., Segransan D., Smith A.M.S., Southworth J.,
Triaud A.H.M.J., Udry S., West R.G.
<Astron. Astrophys. 547, A61 (2012)>
=2012A&A...547A..61S 2012A&A...547A..61S
ADC_Keywords: Stars, G-type ; Planets ; Radial velocities ; Photometry, CCD
Keywords: planets and satellites: general - stars: individual: WASP-78 -
stars: individual: WASP-79 - techniques: photometric -
techniques: spectroscopic - techniques: radial velocities
Abstract:
We report the discovery of WASP-78b and WASP-79b, two highly-bloated
Jupiter-mass exoplanets orbiting F-type host stars. WASP-78b orbits
its V=12.0 host star (TYC 5889-271-1) every 2.175 days and WASP-79b
orbits its V=10.1 host star (CD-30 1812) every 3.662 days. Planetary
parameters have been determined using a simultaneous fit to WASP and
TRAPPIST transit photometry and CORALIE radial-velocity measurements.
For WASP-78b a planetary mass of 0.89±0.08MJup and a radius of
1.70±0.11RJup is found. The planetary equilibrium temperature of
TP=2350±80K for WASP-78b makes it one of the hottest of the
currently known exoplanets. WASP-79b its found to have a planetary
mass of 0.90±0.08MJup, but with a somewhat uncertain radius due
to lack of sufficient TRAPPIST photometry. The planetary radius is at
least 1.70±0.11RJup, but could be as large as 2.09±0.14RJup,
which would make WASP-79b the largest known exoplanet.
Description:
File rv.dat contains the Radial velocity and line bisector span
measurements of WASP-78 and WASP-79 obtained using the CORALIE
spectrograph.
Files phot.dat contains the transit photometry of WASP-78 obtained
using the Trappist Telescope through a blue-blocking filter on 2011
November 8, 2011 December 15 and 2012 January 8, respectively, and the
z' band transit photometry of WASP-79 obtained using the Trappist
Telescope on 2011 September 26.
Objects:
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RA (2000) DE Designation(s)
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04 15 01.5 -22 06 59 WASP-78 = TYC 5889-271-1
04 25 29.0 -30 36 02 WASP-79 = CD-30 1812
---------------------------------------------------
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
rv.dat 49 39 WASP78 and WASP79 radial velocity and line
bisector spans
phot.dat 37 2808 WASP78 (2011/11/08, 2011/12/15 and 2012/01/08)
and WASP79 (2011/09/26) Trappist photometry
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See also:
J/MNRAS/408/1680 : Transiting planetary system WASP-2 (Southworth+, 2010)
J/ApJ/715/421 : Relative photometry of WASP-3 (Tripathi+, 2010)
J/MNRAS/399/287 : Transiting planetary system WASP-4 (Southworth+, 2009)
J/A+A/530/A5 : WASP-4b Ks-band thermal emission detection (Caceres+, 2011)
J/A+A/539/A159 : WASP-4b transit griz light curves (Nikolov+, 2012)
J/AJ/137/3826 : Two transits of the giant planet WASP-4b (Winn+, 2009)
J/MNRAS/396/1023 : Transiting planetary system WASP-5 (Southworth+, 2009)
J/A+A/501/785 : Discovery and characterization of WASP-6b (Gillon+, 2009)
J/A+A/527/A8 : Transiting planetary system WASP-7 (Southworth+, 2011)
J/A+A/517/L1 : Radial velocities of WASP-8b planet (Queloz+, 2010)
J/A+A/535/A7 : Transit light curves of WASP-10 b (Maciejewski+, 2011)
J/ApJ/692/L100 : Relative photometry of WASP-10 (Johnson+, 2009)
J/A+A/528/A65 : WASP-12b transits (Maciejewski+, 2011)
J/ApJ/720/872 : A spectropolarimetric analysis of WASP-12 (Fossati+, 2010)
J/A+A/502/391 : WASP-13b photometry and radial velocities (Skillen+, 2009)
J/ApJ/709/159 : Relative Ic photometry of WASP-17 (Anderson+, 2010)
J/ApJ/707/167 : Transiting planetary system WASP-18 (Southworth+, 2009)
J/A+A/513/L3 : WASP-19b H-band thermal emission (Anderson+, 2010)
J/A+A/519/A98 : Transit of exoplanet WASP-21b (Bouchy+, 2010)
J/A+A/534/A16 : WASP-22 & WASP-26 photometry & velocities (Anderson+, 2011)
J/A+A/531/A24 : WASP-23 photometric and radial velocity data (Triaud+, 2011)
J/A+A/520/A56 : WASP-26b RV and photometric data (Smalley+, 2010)
J/ApJ/726/L19 : Gunn r photometry of WASP-30 (Anderson+, 2011)
J/A+A/531/A60 : WASP-31b photometry and radial velocities (Anderson+, 2011)
J/A+A/526/L10 : Transits of WASP-33 (Herrero+, 2011)
J/A+A/526/A130 : WASP-34b photometry and radial velocities (Smalley+, 2011)
J/A+A/525/A54 : Transits of WASP-38b (Barros+, 2011)
J/A+A/531/A40 : Transits of WASP-39b (Faedi+, 2011)
J/A+A/544/A72 : WASP-42 and WASP-49 photometry and velocities (Lendl+, 2012)
J/A+A/542/A4 : WASP-43b thirty eclipses (Gillon+, 2012)
J/A+A/533/A88 : WASP-50b photometry and radial velocities (Gillon+, 2011)
Byte-by-byte Description of file: rv.dat
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Bytes Format Units Label Explanations
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1- 14 F14.6 d HJD Heliocentric Julian date of observation
16- 23 F8.5 km/s HRV Heliocentric radial velocity
25- 32 F8.5 km/s e_HRV Error on heliocentric radial velocity
34- 41 F8.5 km/s Vspan Line bisector span
43- 47 A5 --- --- [WASP-]
48- 49 I2 --- WASP [78/79] WASP star number (78 or 79)
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Byte-by-byte Description of file: phot.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d HJD Heliocentric Julian date of observation
15- 21 F7.4 mag mag Relative magnitude
23- 29 F7.4 mag e_mag Error on Relative magnitude
31- 35 A5 --- --- [WASP-]
36- 37 I2 --- WASP [78/79] WASP star number (78 or 79)
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Acknowledgements:
Barry Smalley, b.smalley(at)keele.ac.uk
(End) Patricia Vannier [CDS] 03-Oct-2012