J/A+A/586/A93 WASP41 and WASP47 photometric and RV data (Neveu-VanMalle+, 2016)
Hot Jupiters with relatives: discovery of additional planets in orbit around
WASP-41 and WASP-47.
Neveu-VanMalle M., Queloz D., Anderson D.R., Brown D.J.A.,
Collier-Cameron A., Delrez L., Diaz R.F., Gillon M., Hellier C.,
Jehin E., Lister T., Pepe F., Rojo P., Segransan D., Triaud A.H.M.J.,
Turner O.D., Udry S.
<Astron. Astrophys. 586, A93 (2016)>
=2016A&A...586A..93N 2016A&A...586A..93N (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry ;
Radial velocities
Keywords: stars: individual: WASP-47 - stars: individual: WASP-41 -
techniques: photometric - techniques: radial velocities -
techniques: spectroscopic - planetary systems
Abstract:
We report the discovery of two additional planetary companions to
WASP-41 and WASP-47. WASP-41c is a planet of minimum mass
3.18±0.20MJup and eccentricity 0.29±0.02, and it orbits in
421±2-days. WASP-47c is a planet of minimum mass 1.24±0.22MJup
and eccentricity 0.13±0.10, and it orbits in 572±7-days. Unlike
most of the planetary systems that include a hot Jupiter, these two
systems with a hot Jupiter have a long-period planet located at only
about 1AU from their host star. WASP-41 is a rather young star known
to be chromospherically active. To differentiate its magnetic cycle
from the radial velocity effect induced by the second planet, we used
the emission in the Halpha line and find this indicator well suited to
detecting the stellar activity pattern and the magnetic cycle. The
analysis of the Rossiter-McLaughlin effect induced by WASP-41b
suggests that the planet could be misaligned, though an aligned orbit
cannot be excluded. WASP-47 has recently been found to host two
additional transiting super Earths. With such an unprecedented
architecture, the WASP-47 system will be very important for
understanding planetary migration.
Description:
Photometric time-series obtained during transits of the hot Jupiter
WASP-47b, and RV time-series obtained on WASP-41 and WASP-47. The
photometric time-series were obtained using the LCOGT's Faulkes
Telescope South, the TRAPPIST telescope and the 1.54-m Danish
telescope. The RVs were obtained using the Euler/CORALIE and the
ESO/HARPS spectrographs.
Objects:
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RA (2000) DE Designation(s)
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12 42 28.497 -30 38 23.55 WASP-41 = 2MASS 12422849-3038235
22 04 48.731 -12 01 07.99 WASP-47 = 2MASS 22044873-1201079
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
w41phz.dat 49 190 PanSTARRS z filter photometric time-series
obtained with the FTS on WASP-41
w41piz.dat 81 2905 I+z filter photometric time-series obtained
with TRAPPIST on WASP-41
w41phr.dat 51 185 R filter photometric time-series obtained with
the Danish telescope on WASP-41
w41rvcor.dat 55 100 Radial Velocity time-series obtained with
CORALIE on WASP-41
w41rvhar.dat 61 65 Radial Velocity time-series obtained with
HARPS on WASP-41
w47rvc07.dat 55 46 Radial Velocity time-series obtained with
CORALIE before the upgrade on WASP-47
w47rvc14.dat 55 6 Radial Velocity time-series obtained with
CORALIE after the upgrade on WASP-47
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See also:
J/ApJ/715/421 : Relative photometry of WASP-3 (Tripathi+, 2010)
Byte-by-byte Description of file: w41phz.dat w41piz.dat w41phr.dat
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Bytes Format Units Label Explanations
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1- 18 F18.13 d HJD Barycentric Julian Date (HJD-2450000)
20- 38 F19.17 --- Flux Normalised Flux
40- 61 F22.20 --- e_Flux Normalised Flux error
63- 81 F19.16 pix FWHM ? Stellar Full-Width at Half Maximum
(TRAPPIST only)
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Byte-by-byte Description of file: w41rv*.dat w47rv*.dat
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Bytes Format Units Label Explanations
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1- 11 F11.6 d BJD Barycentric Julian Date (BJD-2450000)
13- 21 F9.5 km/s RVel Radial velocity
23- 29 F7.5 km/s e_RVel Radial velocity error
31- 37 F7.5 km/s FWHM CCF Full Width Half Maximum
39- 46 F8.5 km/s Span Bisector span
48- 54 F7.4 --- Rhk ? log R'hk (only HARPS data)
56- 61 F6.4 --- e_Rhk ? error on log R'hk (only HARPS data)
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Acknowledgements:
Marion Neveu-VanMalle, marion.neveu(at)unige.ch
(End) M. Neveu-VanMalle [Obs. Geneva, Switzerland], P. Vannier [CDS] 23-Oct-2015