WASP-103 b: a new planet at the edge of tidal disruption

M. Gillon; D. R. Anderson; A. Collier-Cameron; L. Delrez; C. Hellier; E. Jehin; M. Lendl; P. F. L. Maxted; F. Pepe; D. Pollacco; D. Queloz; D. Segransan; A. M. S. Smith; B. Smalley; J. Southworth; A. H. M. J. Triaud; S. Udry; V. Van Grootel; R. G. West

doi:10.1051/0004-6361/201323014

WASP-103 b: a new planet at the edge of tidal disruption

M. Gillon^*, D. R. Anderson, A. Collier-Cameron, L. Delrez, C. Hellier, E. Jehin, M. Lendl, P. F. L. Maxted, F. Pepe, D. Pollacco, D. Queloz, D. Segransan, A. M. S. Smith, B. Smalley, J. Southworth, A. H. M. J. Triaud, S. Udry, V. Van Grootel, R. G. West

^*Corresponding author for this work

School of Physics and Astronomy

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Abstract

We report the discovery of WASP-103 b, a new ultra-short-period planet (P = 22.2 h) transiting a 12.1 V-magnitude F8-type main-sequence star (1.22 ± 0.04 M_⊙, 1.44_-0.03^+0.05 R_⊙, T_eff = 6110 ± 160 K). WASP-103 b is significantly more massive (1.49 ± 0.09 M_Jup) and larger (1.53_-0.07^+0.05 R_Jup) than Jupiter. Its large size and extreme irradiation (~ 9 × 10⁹ erg s^-1 cm^-2) make it an exquisite target for a thorough atmospheric characterization with existing facilities. Furthermore, its orbital distance is less than 20% larger than its Roche radius, meaning that it might be significantly distorted by tides and might experience mass loss through Roche-lobe overflow. It thus represents a new key object for understanding the last stage of the tidal evolution of hot Jupiters.

Original language	English
Article number	L3
Number of pages	4
Journal	Astronomy & Astrophysics
Volume	562
DOIs	https://doi.org/10.1051/0004-6361/201323014
Publication status	Published - 5 Feb 2014

Keywords

Planetary systems
Stars: individual: WASP-103
Techniques: photometric
Techniques: radial velocities
Techniques: spectroscopic
Hot-Jupiter
Extrasolar planet
Thermal emission
Star
Transits
Exoplanet
Stellar
Systems
Period
Disk

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Cameron_2014_A&A_Wasp103b
© ESO, 2014
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Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014
Horne, K. D. (PI)
Science & Technology Facilities Council
1/10/11 → 31/03/12
Project: Standard
Wide Area Search for Planets: Project support for the Wide Area Search for Planets
Cameron, A. C. (PI)
Science & Technology Facilities Council
1/08/08 → 31/07/11
Project: Standard

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Gillon, M., Anderson, D. R., Collier-Cameron, A., Delrez, L., Hellier, C., Jehin, E., Lendl, M., Maxted, P. F. L., Pepe, F., Pollacco, D., Queloz, D., Segransan, D., Smith, A. M. S., Smalley, B., Southworth, J., Triaud, A. H. M. J., Udry, S., Van Grootel, V., & West, R. G. (2014). WASP-103 b: a new planet at the edge of tidal disruption. Astronomy & Astrophysics, 562, Article L3. https://doi.org/10.1051/0004-6361/201323014

@article{9096e0ddade04f359fb5aaeb03ef6216,

title = "WASP-103 b: a new planet at the edge of tidal disruption",

abstract = "We report the discovery of WASP-103 b, a new ultra-short-period planet (P = 22.2 h) transiting a 12.1 V-magnitude F8-type main-sequence star (1.22 ± 0.04 M⊙, 1.44-0.03+0.05 R⊙, Teff = 6110 ± 160 K). WASP-103 b is significantly more massive (1.49 ± 0.09 MJup) and larger (1.53-0.07+0.05 RJup) than Jupiter. Its large size and extreme irradiation (~ 9 × 109 erg s-1 cm-2) make it an exquisite target for a thorough atmospheric characterization with existing facilities. Furthermore, its orbital distance is less than 20% larger than its Roche radius, meaning that it might be significantly distorted by tides and might experience mass loss through Roche-lobe overflow. It thus represents a new key object for understanding the last stage of the tidal evolution of hot Jupiters.",

keywords = "Planetary systems, Stars: individual: WASP-103, Techniques: photometric, Techniques: radial velocities, Techniques: spectroscopic, Hot-Jupiter, Extrasolar planet, Thermal emission, Star, Transits, Exoplanet, Stellar, Systems, Period, Disk",

author = "M. Gillon and Anderson, {D. R.} and A. Collier-Cameron and L. Delrez and C. Hellier and E. Jehin and M. Lendl and Maxted, {P. F. L.} and F. Pepe and D. Pollacco and D. Queloz and D. Segransan and Smith, {A. M. S.} and B. Smalley and J. Southworth and Triaud, {A. H. M. J.} and S. Udry and {Van Grootel}, V. and West, {R. G.}",

note = "Funding for WASP comes from consortium universities and from UK{\textquoteright}s Science and Technology Facilities Council. TRAPPIST is a project funded by the Belgian Fund for Scientific Research (Fonds de la Recherche Scientifique, F.R.S-FNRS) under grant FRFC 2.5.594.09.F, with the participation of the Swiss National Science Fundation (SNF). M. Gillon and E. Jehin are FNRS Research Associates. V. Van Grootel is a FNRS postdoctoral researcher. L. Delrez thanks the Belgian FNRS for funding her Ph.D. thesis. A. H. M. J. Triaud is Swiss National Science Foundation fellow under grant PBGEP2-145594.",

year = "2014",

month = feb,

day = "5",

doi = "10.1051/0004-6361/201323014",

language = "English",

volume = "562",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP SCIENCES S A",

}

Gillon, M, Anderson, DR, Collier-Cameron, A, Delrez, L, Hellier, C, Jehin, E, Lendl, M, Maxted, PFL, Pepe, F, Pollacco, D, Queloz, D, Segransan, D, Smith, AMS, Smalley, B, Southworth, J, Triaud, AHMJ, Udry, S, Van Grootel, V & West, RG 2014, 'WASP-103 b: a new planet at the edge of tidal disruption', Astronomy & Astrophysics, vol. 562, L3. https://doi.org/10.1051/0004-6361/201323014

TY - JOUR

T1 - WASP-103 b

T2 - a new planet at the edge of tidal disruption

AU - Gillon, M.

AU - Anderson, D. R.

AU - Collier-Cameron, A.

AU - Delrez, L.

AU - Hellier, C.

AU - Jehin, E.

AU - Lendl, M.

AU - Maxted, P. F. L.

AU - Pepe, F.

AU - Pollacco, D.

AU - Queloz, D.

AU - Segransan, D.

AU - Smith, A. M. S.

AU - Smalley, B.

AU - Southworth, J.

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

AU - Udry, S.

AU - Van Grootel, V.

AU - West, R. G.

N1 - Funding for WASP comes from consortium universities and from UK’s Science and Technology Facilities Council. TRAPPIST is a project funded by the Belgian Fund for Scientific Research (Fonds de la Recherche Scientifique, F.R.S-FNRS) under grant FRFC 2.5.594.09.F, with the participation of the Swiss National Science Fundation (SNF). M. Gillon and E. Jehin are FNRS Research Associates. V. Van Grootel is a FNRS postdoctoral researcher. L. Delrez thanks the Belgian FNRS for funding her Ph.D. thesis. A. H. M. J. Triaud is Swiss National Science Foundation fellow under grant PBGEP2-145594.

PY - 2014/2/5

Y1 - 2014/2/5

N2 - We report the discovery of WASP-103 b, a new ultra-short-period planet (P = 22.2 h) transiting a 12.1 V-magnitude F8-type main-sequence star (1.22 ± 0.04 M⊙, 1.44-0.03+0.05 R⊙, Teff = 6110 ± 160 K). WASP-103 b is significantly more massive (1.49 ± 0.09 MJup) and larger (1.53-0.07+0.05 RJup) than Jupiter. Its large size and extreme irradiation (~ 9 × 109 erg s-1 cm-2) make it an exquisite target for a thorough atmospheric characterization with existing facilities. Furthermore, its orbital distance is less than 20% larger than its Roche radius, meaning that it might be significantly distorted by tides and might experience mass loss through Roche-lobe overflow. It thus represents a new key object for understanding the last stage of the tidal evolution of hot Jupiters.

AB - We report the discovery of WASP-103 b, a new ultra-short-period planet (P = 22.2 h) transiting a 12.1 V-magnitude F8-type main-sequence star (1.22 ± 0.04 M⊙, 1.44-0.03+0.05 R⊙, Teff = 6110 ± 160 K). WASP-103 b is significantly more massive (1.49 ± 0.09 MJup) and larger (1.53-0.07+0.05 RJup) than Jupiter. Its large size and extreme irradiation (~ 9 × 109 erg s-1 cm-2) make it an exquisite target for a thorough atmospheric characterization with existing facilities. Furthermore, its orbital distance is less than 20% larger than its Roche radius, meaning that it might be significantly distorted by tides and might experience mass loss through Roche-lobe overflow. It thus represents a new key object for understanding the last stage of the tidal evolution of hot Jupiters.

KW - Planetary systems

KW - Stars: individual: WASP-103

KW - Techniques: photometric

KW - Techniques: radial velocities

KW - Techniques: spectroscopic

KW - Hot-Jupiter

KW - Extrasolar planet

KW - Thermal emission

KW - Star

KW - Transits

KW - Exoplanet

KW - Stellar

KW - Systems

KW - Period

KW - Disk

U2 - 10.1051/0004-6361/201323014

DO - 10.1051/0004-6361/201323014

M3 - Article

SN - 0004-6361

VL - 562

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - L3

ER -

WASP-103 b: a new planet at the edge of tidal disruption

Abstract

Keywords

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Projects

Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014

Wide Area Search for Planets: Project support for the Wide Area Search for Planets

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