The discovery of WASP-151b, WASP-153b, WASP-156b: insights on giant planet migration and the upper boundary of the Neptunian desert

Olivier. D. S. Demangeon; F. Faedi; G. Hébrard; D. J. A. Brown; S. C. C. Barros; A. P. Doyle; P. F. L. Maxted; A. Collier Cameron; K. L. Hay; J. Alikakos; D. R. Anderson; D. J. Armstrong; P. Boumis; A. S. Bonomo; F. Bouchy; C. A. Haswell; C. Hellier; F. Kiefer; K. W. F. Lam; L. Mancini; J. McCormac; A. J. Norton; H. P. Osborn; E. Palle; F. Pepe; D. L. Pollacco; J. Prieto-Arranz; D. Queloz; D. Ségransan; B. Smalley; A. H. M. J. Triaud; S. Udry; R. West; P. J. Wheatley

doi:10.1051/0004-6361/201731735

The discovery of WASP-151b, WASP-153b, WASP-156b: insights on giant planet migration and the upper boundary of the Neptunian desert

Olivier. D. S. Demangeon, F. Faedi, G. Hébrard, D. J. A. Brown, S. C. C. Barros, A. P. Doyle, P. F. L. Maxted, A. Collier Cameron, K. L. Hay, J. Alikakos, D. R. Anderson, D. J. Armstrong, P. Boumis, A. S. Bonomo, F. Bouchy, C. A. Haswell, C. Hellier, F. Kiefer, K. W. F. Lam, L. ManciniJ. McCormac, A. J. Norton, H. P. Osborn, E. Palle, F. Pepe, D. L. Pollacco, J. Prieto-Arranz, D. Queloz, D. Ségransan, B. Smalley, A. H. M. J. Triaud, S. Udry, R. West, P. J. Wheatley

Research output: Contribution to journal › Article › peer-review

Abstract

To investigate the origin of the features discovered in the exoplanet population, the knowledge of exoplanets' mass and radius with a good precision is essential. In this paper, we report the discovery of three transiting exoplanets by the SuperWASP survey and the SOPHIE spectrograph with mass and radius determined with a precision better than 15 %. WASP-151b and WASP-153b are two hot Saturns with masses, radii, densities and equilibrium temperatures of 0.31^{+0.04}_{-0.03}M_J, 1.13^{+0.03}_{-0.03} RJ, 0.22^{-0.03}_{-0.02} ρ_J and 1,290^{+20}_{-10} K, and 0.39^{+0.02}_{-0.02} M_J, 1.55^{+0.10}_{-0.08} R_J,0.11^{+0.02}_{-0.02} ρ_J and 1, 700^{+40}_{-40} K, respectively. Their host stars are early G type stars (with magV ~ 13) and their orbital periods are 4.53 and 3.33 days, respectively. WASP-156b is a Super-Neptune orbiting a K type star (magV = 11.6) . It has a mass of 0.128^{+0.010}_{-0.009} M_J, a radius of 0.51^{+0.02}_{-0.02} R_J, a density of 1.0^{+0.1}_{-0.1} ρ_J, an equilibrium temperature of 970^{+30}_{-20} K and an orbital period of 3.83 days. WASP-151b is slightly inflated, while WASP-153b presents a significant radius anomaly. WASP-156b, being one of the few well characterised Super-Neptunes, will help to constrain the formation of Neptune size planets and the transition between gas and ice giants. The estimates of the age of these three stars confirms the tendency for some stars to have gyrochronological ages significantly lower than their isochronalages. We propose that high eccentricity migration could partially explain this behaviour for stars hosting a short period planet. Finally, these three planets also lie close to (WASP-151b and WASP-153b) or below (WASP-156b) the upper boundary of the Neptunian desert. Their characteristics support that the ultra-violet irradiation plays an important role in this depletion of planets observed in the exoplanet population.

Original language	English
Article number	A63
Number of pages	19
Journal	Astronomy & Astrophysics
Volume	610
Early online date	2 Mar 2018
DOIs	https://doi.org/10.1051/0004-6361/201731735
Publication status	Published - 2018

Keywords

Planetary and satellites: detection
Stars: individual: WASP-151, WASP-153, WASP-156
Techniques and radial velocities, photometric

Access to Document

10.1051/0004-6361/201731735

Demangeon-2017-Discovery-WASP-151b-AAM
© 2017, EDP Sciences. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1051/0004-6361/201731735
Accepted author manuscript, 1.52 MB

http://adsabs.harvard.edu/abs/2017arXiv171006321D

Astronomy at St Andrews 2015-2018: Astronomy at St Andrews 2015-2018
Jardine, M. M. (PI), Cameron, A. C. (CoI), Cyganowski, C. J. (CoI), Horne, K. D. (CoI) & Wood, K. (CoI)
Science & Technology Facilities Council
1/04/15 → 31/03/18
Project: Standard
EU FP7 Space ETAEARTH: ETAEARTH
Cameron, A. C. (PI)
European Commission
1/01/13 → 31/12/17
Project: Standard

The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert (dataset)
Demangeon, O. D. S. (Creator), Faedi, F. (Creator), Hébrard (G Hebrard), G. (Creator), Brown, D. J. A. (Creator), Barros, S. C. C. (Creator), Doyle, A. P. (Creator), Maxted (P F L Maxted), P. F. L. (Creator), Cameron, A. C. (Creator), Hay, K. (Creator), Alikakos, J. (Creator), Anderson (D R Anderson), D. R. (Creator), Armstrong, D. J. (Creator), Boumis, P. (Creator), Bonomo, A. S. (Creator), Bouchy (F Bouchy), F. (Creator), Haswell (C A Haswell), C. A. (Creator), Hellier (C Hellier), C. (Creator), Kiefer, F. (Creator), Lam, K. W. F. (Creator), Mancini (L Mancini), L. (Creator), McCormac, J. (Creator), Norton (A J Norton, A. J. (Creator), Osborn, H. P. (Creator), Palle, E. (Creator), Pepe, F. (Creator), Pollacco (D L Pollacco), D. L. (Creator), Prieto-Arranz, J. (Creator), Queloz (D Queloz), D. (Creator), Ségransan, D. (Creator), Smalley (B Smalley), B. (Creator), Triaud (A H M J Triaud), A. H. M. J. (Creator), Udry (S Udry), S. (Creator), West, R. (Creator) & Wheatley (P J Wheatley), P. J. (Creator), NASA Exoplanet Science Institute, 1 Oct 2017
https://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?type=REFERENCE&bibcode=2017arXiv171006321D
Dataset

Cite this

Demangeon, O. D. S., Faedi, F., Hébrard, G., Brown, D. J. A., Barros, S. C. C., Doyle, A. P., Maxted, P. F. L., Collier Cameron, A., Hay, K. L., Alikakos, J., Anderson, D. R., Armstrong, D. J., Boumis, P., Bonomo, A. S., Bouchy, F., Haswell, C. A., Hellier, C., Kiefer, F., Lam, K. W. F., ... Wheatley, P. J. (2018). The discovery of WASP-151b, WASP-153b, WASP-156b: insights on giant planet migration and the upper boundary of the Neptunian desert. Astronomy & Astrophysics, 610, Article A63. https://doi.org/10.1051/0004-6361/201731735

@article{4a389fb35caf46339858ca2d56d2dbda,

title = "The discovery of WASP-151b, WASP-153b, WASP-156b: insights on giant planet migration and the upper boundary of the Neptunian desert",

abstract = "To investigate the origin of the features discovered in the exoplanet population, the knowledge of exoplanets' mass and radius with a good precision is essential. In this paper, we report the discovery of three transiting exoplanets by the SuperWASP survey and the SOPHIE spectrograph with mass and radius determined with a precision better than 15 %. WASP-151b and WASP-153b are two hot Saturns with masses, radii, densities and equilibrium temperatures of 0.31^{+0.04}_{-0.03}MJ, 1.13^{+0.03}_{-0.03} RJ, 0.22^{-0.03}_{-0.02} ρJ and 1,290^{+20}_{-10} K, and 0.39^{+0.02}_{-0.02} MJ, 1.55^{+0.10}_{-0.08} RJ,0.11^{+0.02}_{-0.02} ρJ and 1, 700^{+40}_{-40} K, respectively. Their host stars are early G type stars (with magV ~ 13) and their orbital periods are 4.53 and 3.33 days, respectively. WASP-156b is a Super-Neptune orbiting a K type star (magV = 11.6) . It has a mass of 0.128^{+0.010}_{-0.009} MJ, a radius of 0.51^{+0.02}_{-0.02} RJ, a density of 1.0^{+0.1}_{-0.1} ρJ, an equilibrium temperature of 970^{+30}_{-20} K and an orbital period of 3.83 days. WASP-151b is slightly inflated, while WASP-153b presents a significant radius anomaly. WASP-156b, being one of the few well characterised Super-Neptunes, will help to constrain the formation of Neptune size planets and the transition between gas and ice giants. The estimates of the age of these three stars confirms the tendency for some stars to have gyrochronological ages significantly lower than their isochronalages. We propose that high eccentricity migration could partially explain this behaviour for stars hosting a short period planet. Finally, these three planets also lie close to (WASP-151b and WASP-153b) or below (WASP-156b) the upper boundary of the Neptunian desert. Their characteristics support that the ultra-violet irradiation plays an important role in this depletion of planets observed in the exoplanet population.",

keywords = "Planetary and satellites: detection, Stars: individual: WASP-151, WASP-153, WASP-156, Techniques and radial velocities, photometric",

author = "Demangeon, {Olivier. D. S.} and F. Faedi and G. H{\'e}brard and Brown, {D. J. A.} and Barros, {S. C. C.} and Doyle, {A. P.} and Maxted, {P. F. L.} and {Collier Cameron}, A. and Hay, {K. L.} and J. Alikakos and Anderson, {D. R.} and Armstrong, {D. J.} and P. Boumis and Bonomo, {A. S.} and F. Bouchy and Haswell, {C. A.} and C. Hellier and F. Kiefer and Lam, {K. W. F.} and L. Mancini and J. McCormac and Norton, {A. J.} and Osborn, {H. P.} and E. Palle and F. Pepe and Pollacco, {D. L.} and J. Prieto-Arranz and D. Queloz and D. S{\'e}gransan and B. Smalley and Triaud, {A. H. M. J.} and S. Udry and R. West and Wheatley, {P. J.}",

note = "O.D.S.D acknowledges the support from Funda{\c c}{\~a}o para a Ci{\^e}ncia e a Tecnologia (FCT) through national funds and by FEDER through COMPETE2020 by grants UID/FIS/04434/2013&POCI-01-0145-FEDER-007672 and PTDC/FIS-AST/1526/2014&POCI-01-0145-FEDER-016886. SCCB also acknowledges support from FCT through Investigador FCT contract IF/01312/2014/CP1215/CT0004. CAH was supported by STFC under grant ST/P000584/1. A.S.B. acknowledges funding from the European Union Seventh Framework programme (FP7/2007-2013) under grant agreement No. 313014 (ETAEARTH). D.J.A.B acknowledges funding from the UKSA and the University of Warwick. The SuperWASP Consortium consists of astronomers primarily from University of Warwick, Queens University Belfast, St Andrews, Keele, Leicester, The Open University, Isaac Newton Group La Palma and Instituto de Astrof{\'i}sica de Canarias. The SuperWASP-N camera is hosted by the Issac Newton Group on La Palma and WASPSouth is hosted by SAAO. We are grateful for their support and assistance. Funding for WASP comes from consortium universities and from the UK{\textquoteright}s Science and Technology Facilities Council. The research leading to these results has received funding from the European Community{\textquoteright}s Seventh Framework Programmes (FP7/2007-2013 and FP7/2013-2016) under grant agreement number RG226604 and 312430 (OPTICON), respectively. This work is based on radial velocity observations made at Observatoire de Haute Provence (CNRS), France and at ESO La Silla in (Chile) with the CORALIE Echelle spectrograph mounted on the Swiss telescope. We thank the staff at Haute-Provence Observatory. TRAPPIST is funded by the Belgian Fund for Scientific Research (Fond National de la Recherche Scientifique, FNRS) under the grant FRFC 2.5.594.09.F, with the participation of the Swiss National Science Fundation (SNF). The Swiss Euler Telescope is a project financed by the Swiss National Science Foundation. The Liverpool Telescope is operated on the island of La Palma by Liverpool John Moores University in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias with financial support from the UK Science and Technology Facilities Council. The Aristarchos telescope is operated on Helmos Observatory by the Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing of the National Observatory of Athens. This paper includes data collected by the K2 mission. Funding for the K2 mission is provided by the NASA Science Mission directorate. Used Simbad, Vizier, exoplanet.eu. The authors also want to thank Pedro Figueira, Nuno Santos and Mahmoud Oshagh for fruitful discussions and Joao Faria for his Python figure styler",

year = "2018",

doi = "10.1051/0004-6361/201731735",

language = "English",

volume = "610",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP SCIENCES S A",

}

Demangeon, ODS, Faedi, F, Hébrard, G, Brown, DJA, Barros, SCC, Doyle, AP, Maxted, PFL, Collier Cameron, A, Hay, KL, Alikakos, J, Anderson, DR, Armstrong, DJ, Boumis, P, Bonomo, AS, Bouchy, F, Haswell, CA, Hellier, C, Kiefer, F, Lam, KWF, Mancini, L, McCormac, J, Norton, AJ, Osborn, HP, Palle, E, Pepe, F, Pollacco, DL, Prieto-Arranz, J, Queloz, D, Ségransan, D, Smalley, B, Triaud, AHMJ, Udry, S, West, R & Wheatley, PJ 2018, 'The discovery of WASP-151b, WASP-153b, WASP-156b: insights on giant planet migration and the upper boundary of the Neptunian desert', Astronomy & Astrophysics, vol. 610, A63. https://doi.org/10.1051/0004-6361/201731735

TY - JOUR

T1 - The discovery of WASP-151b, WASP-153b, WASP-156b

T2 - insights on giant planet migration and the upper boundary of the Neptunian desert

AU - Demangeon, Olivier. D. S.

AU - Faedi, F.

AU - Hébrard, G.

AU - Brown, D. J. A.

AU - Barros, S. C. C.

AU - Doyle, A. P.

AU - Maxted, P. F. L.

AU - Collier Cameron, A.

AU - Hay, K. L.

AU - Alikakos, J.

AU - Anderson, D. R.

AU - Armstrong, D. J.

AU - Boumis, P.

AU - Bonomo, A. S.

AU - Bouchy, F.

AU - Haswell, C. A.

AU - Hellier, C.

AU - Kiefer, F.

AU - Lam, K. W. F.

AU - Mancini, L.

AU - McCormac, J.

AU - Norton, A. J.

AU - Osborn, H. P.

AU - Palle, E.

AU - Pepe, F.

AU - Pollacco, D. L.

AU - Prieto-Arranz, J.

AU - Queloz, D.

AU - Ségransan, D.

AU - Smalley, B.

AU - Triaud, A. H. M. J.

AU - Udry, S.

AU - West, R.

AU - Wheatley, P. J.

N1 - O.D.S.D acknowledges the support from Fundação para a Ciência e a Tecnologia (FCT) through national funds and by FEDER through COMPETE2020 by grants UID/FIS/04434/2013&POCI-01-0145-FEDER-007672 and PTDC/FIS-AST/1526/2014&POCI-01-0145-FEDER-016886. SCCB also acknowledges support from FCT through Investigador FCT contract IF/01312/2014/CP1215/CT0004. CAH was supported by STFC under grant ST/P000584/1. A.S.B. acknowledges funding from the European Union Seventh Framework programme (FP7/2007-2013) under grant agreement No. 313014 (ETAEARTH). D.J.A.B acknowledges funding from the UKSA and the University of Warwick. The SuperWASP Consortium consists of astronomers primarily from University of Warwick, Queens University Belfast, St Andrews, Keele, Leicester, The Open University, Isaac Newton Group La Palma and Instituto de Astrofísica de Canarias. The SuperWASP-N camera is hosted by the Issac Newton Group on La Palma and WASPSouth is hosted by SAAO. We are grateful for their support and assistance. Funding for WASP comes from consortium universities and from the UK’s Science and Technology Facilities Council. The research leading to these results has received funding from the European Community’s Seventh Framework Programmes (FP7/2007-2013 and FP7/2013-2016) under grant agreement number RG226604 and 312430 (OPTICON), respectively. This work is based on radial velocity observations made at Observatoire de Haute Provence (CNRS), France and at ESO La Silla in (Chile) with the CORALIE Echelle spectrograph mounted on the Swiss telescope. We thank the staff at Haute-Provence Observatory. TRAPPIST is funded by the Belgian Fund for Scientific Research (Fond National de la Recherche Scientifique, FNRS) under the grant FRFC 2.5.594.09.F, with the participation of the Swiss National Science Fundation (SNF). The Swiss Euler Telescope is a project financed by the Swiss National Science Foundation. The Liverpool Telescope is operated on the island of La Palma by Liverpool John Moores University in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias with financial support from the UK Science and Technology Facilities Council. The Aristarchos telescope is operated on Helmos Observatory by the Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing of the National Observatory of Athens. This paper includes data collected by the K2 mission. Funding for the K2 mission is provided by the NASA Science Mission directorate. Used Simbad, Vizier, exoplanet.eu. The authors also want to thank Pedro Figueira, Nuno Santos and Mahmoud Oshagh for fruitful discussions and Joao Faria for his Python figure styler

PY - 2018

Y1 - 2018

N2 - To investigate the origin of the features discovered in the exoplanet population, the knowledge of exoplanets' mass and radius with a good precision is essential. In this paper, we report the discovery of three transiting exoplanets by the SuperWASP survey and the SOPHIE spectrograph with mass and radius determined with a precision better than 15 %. WASP-151b and WASP-153b are two hot Saturns with masses, radii, densities and equilibrium temperatures of 0.31^{+0.04}_{-0.03}MJ, 1.13^{+0.03}_{-0.03} RJ, 0.22^{-0.03}_{-0.02} ρJ and 1,290^{+20}_{-10} K, and 0.39^{+0.02}_{-0.02} MJ, 1.55^{+0.10}_{-0.08} RJ,0.11^{+0.02}_{-0.02} ρJ and 1, 700^{+40}_{-40} K, respectively. Their host stars are early G type stars (with magV ~ 13) and their orbital periods are 4.53 and 3.33 days, respectively. WASP-156b is a Super-Neptune orbiting a K type star (magV = 11.6) . It has a mass of 0.128^{+0.010}_{-0.009} MJ, a radius of 0.51^{+0.02}_{-0.02} RJ, a density of 1.0^{+0.1}_{-0.1} ρJ, an equilibrium temperature of 970^{+30}_{-20} K and an orbital period of 3.83 days. WASP-151b is slightly inflated, while WASP-153b presents a significant radius anomaly. WASP-156b, being one of the few well characterised Super-Neptunes, will help to constrain the formation of Neptune size planets and the transition between gas and ice giants. The estimates of the age of these three stars confirms the tendency for some stars to have gyrochronological ages significantly lower than their isochronalages. We propose that high eccentricity migration could partially explain this behaviour for stars hosting a short period planet. Finally, these three planets also lie close to (WASP-151b and WASP-153b) or below (WASP-156b) the upper boundary of the Neptunian desert. Their characteristics support that the ultra-violet irradiation plays an important role in this depletion of planets observed in the exoplanet population.

AB - To investigate the origin of the features discovered in the exoplanet population, the knowledge of exoplanets' mass and radius with a good precision is essential. In this paper, we report the discovery of three transiting exoplanets by the SuperWASP survey and the SOPHIE spectrograph with mass and radius determined with a precision better than 15 %. WASP-151b and WASP-153b are two hot Saturns with masses, radii, densities and equilibrium temperatures of 0.31^{+0.04}_{-0.03}MJ, 1.13^{+0.03}_{-0.03} RJ, 0.22^{-0.03}_{-0.02} ρJ and 1,290^{+20}_{-10} K, and 0.39^{+0.02}_{-0.02} MJ, 1.55^{+0.10}_{-0.08} RJ,0.11^{+0.02}_{-0.02} ρJ and 1, 700^{+40}_{-40} K, respectively. Their host stars are early G type stars (with magV ~ 13) and their orbital periods are 4.53 and 3.33 days, respectively. WASP-156b is a Super-Neptune orbiting a K type star (magV = 11.6) . It has a mass of 0.128^{+0.010}_{-0.009} MJ, a radius of 0.51^{+0.02}_{-0.02} RJ, a density of 1.0^{+0.1}_{-0.1} ρJ, an equilibrium temperature of 970^{+30}_{-20} K and an orbital period of 3.83 days. WASP-151b is slightly inflated, while WASP-153b presents a significant radius anomaly. WASP-156b, being one of the few well characterised Super-Neptunes, will help to constrain the formation of Neptune size planets and the transition between gas and ice giants. The estimates of the age of these three stars confirms the tendency for some stars to have gyrochronological ages significantly lower than their isochronalages. We propose that high eccentricity migration could partially explain this behaviour for stars hosting a short period planet. Finally, these three planets also lie close to (WASP-151b and WASP-153b) or below (WASP-156b) the upper boundary of the Neptunian desert. Their characteristics support that the ultra-violet irradiation plays an important role in this depletion of planets observed in the exoplanet population.

KW - Planetary and satellites: detection

KW - Stars: individual: WASP-151, WASP-153, WASP-156

KW - Techniques and radial velocities, photometric

U2 - 10.1051/0004-6361/201731735

DO - 10.1051/0004-6361/201731735

M3 - Article

SN - 0004-6361

VL - 610

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - A63

ER -

The discovery of WASP-151b, WASP-153b, WASP-156b: insights on giant planet migration and the upper boundary of the Neptunian desert

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Astronomy at St Andrews 2015-2018: Astronomy at St Andrews 2015-2018

EU FP7 Space ETAEARTH: ETAEARTH

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The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert (dataset)

Cite this