Planet WASP-31 b

Name WASP-31 b
Planet Status Confirmed
Discovered in 2010
Mass 0.478 ( -0.03 +0.03 ) MJ
Mass*sin(i)
Semi-Major Axis 0.04657 (± 0.00034) AU
Orbital Period 3.405909 (± 5e-06) day
Eccentricity 0.0
ω
Tperi
Radius 1.537 ( -0.06 +0.06 ) RJ
Inclination 84.54 (± 0.027) deg
Update 2018-10-10
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method
Primary transit 2455192.6887 (± 0.0003) JD
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

WASP-31
Name WASP-31
Distance 400.0 (± 0.0) pc
Spectral type F
Apparent magnitude V 11.7
Mass 1.16 (± 0.026) MSun
Age
Effective temperature 6200.0 (± 100.0) K
Radius 1.24 (± 0.04) RSun
Metallicity [Fe/H] -0.19 (± 0.09)
Detected Disc
Magnetic Field
RA2000 11:17:45.0
Dec2000 -19:03:17
Alternate Names
Planetary system 1 planet

Remarks

Alias USNO-B1.0 0709-0239208
Alias 2MASS 11174536-1903171

The star is part of a visual double with a V = 15.8 K-type star 35'' away (Anderson et al. 2010)

More data

Atmospheric parameters

Temperatures

Data Source Type Result Value Result Figure Notes Reference

Molecules

Molecule Data Source Type Result Value Result Figure Notes Reference
K Measurements Detected 2019 - GIBSON N.
Measurements Detected 2017 - GIBSON N.

Observability Predictor


Related publications

Revisiting the potassium feature of WASP-31b at high-resolution
2019 GIBSON N., de MOOIJ E., EVANS Th., MERRITT S., NIKOLOV N. et al.
MNRAS, 482, 606
paper  arxiv  

H2O abundances and cloud properties in ten hot giant exoplanets
2019 PINHAS A., MADHUSUDHAN N., GANDHI S. & MacDONALD R.
MNRAS, 482, 1471
paper  arxiv  

Retrieval of planetary and stellar properties in transmission spectroscopy with Aura
2018 PINHAS, A., RACKHAM, B., MADHUSUDHAN, N. & D. APAI
MNRAS, 480, 5314
paper   arxiv   ADS  

Triboelectrification of KCl and ZnS Particles in Approximated Exoplanet Environments
2018 MENDEZ HARPER J., HELLING Ch. & DUFEK J.
ApJ, 867, 123
paper  

A consistent retrieval analysis of 10 Hot Jupiters observed in transmission
2017 BARSTOW J., AIGRAIN S., IRWIN P. & SING D.
ApJ, 834, 50
paper  arxiv  ADS  

A survey of eight hot Jupiters in secondary eclipse using WIRCam at CFHT
2017 MARTIOLI E., COLIN N., ANGERHAUSEN D., STASSUN K., RODRIGUEZ J. et al.
MNRAS, 474, 4264
paper  arxiv  

VLT/FORS2 comparative transmission spectroscopy II: confirmation of a cloud-deck and Rayleigh scattering in WASP-31b, but no potassium?
2017 GIBSON N., NIKOLOV N., SING D., BARSTOW J., EVANS Th. et al.
MNRAS, accepted
arxiv  

A Cloudiness Index for Transiting Exoplanets Based on the Sodium and Potassium Lines: Tentative Evidence for Hotter Atmospheres Being Less Cloudy at Visible Wavelengths
2016 HENG K.
ApJL, 827, L16
arxiv   paper   ADS  

A continuum from clear to cloudy hot-Jupiter exoplanets without primordial water depletion
2016 SING D., FORTNEY J., NIKOLOV N., WKEFORD H., KATARIA T. et al.
Nature, 529, 59
paper   arxiv   ADS

Marginalising instrument systematics in HST WFC3 transit lightcurves
2016 WAKEFORD H., SING D., EVANS T.,DEMING D. & MANDELL A.
ApJ, accepted
arxiv  

The atmospheric circulation of a nine-hot Jupiter sample: Probing circulation and chemistry over a wide phase space
2016 KATARIA T., SING D., LEWIS N., VISSCHER Ch., SHOWMAN A. et al.
ApJ, 821, 9
paper  arxiv  ADS  

Exoplanetary Atmospheres - Chemistry, Formation Conditions, and Habitability
2016 MADHUSUDHAN N., AGUNDEZ M., MOSES J. & HU Y.
Spa. Sci. Rev., accepted
arxiv  

HST hot-Jupiter transmission spectral survey: detection of potassium in WASP-31b along with a cloud deck and Rayleigh scattering
2014 SING D., WAKEFORD H., SHOWMAN A., NIKOLOV N., FORTNEY J. et al.
MNRAS, 446, 2428
paper  arxiv  

A Uniformly Derived Catalogue of Exoplanets from Radial Velocities
2012 HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS, 423, Issue 3, 2800-2814
paper  arxiv

Obliquities of Hot Jupiter host stars: Evidence for tidal interactions and primordial misalignments
2012 ALBRECHT S., WINN J., JOHSON J., HOWARD A., MARCY G. & 8 additional authors
ApJ., 757, 18
paper   arxiv

Taxonomy of the extrasolar planet
2012 PLAVALOVA E.
Astrobiology, 12, 361
paper   arxiv

Rossiter-McLaughlin Effect Measurements for WASP-16, WASP-25 and WASP-31
2012 BROWN D., COLLIER-CAMERON A., ANDERSON D., ENOCH B., HELLIER C. & 11 additional authors
MNRAS, 423, 1503
paper   arxiv

Factors Affecting the Radii of Close-in Transiting Exoplanets
2012 ENOCH B., COLLIER CAMERON A. & HORNE K.
Astron. & Astrophys., 540, A99
paper   arxiv   ADS  

WASP-31b: a low-density planet transiting a late-F-type star
2011 ANDERSON D., COLLIER-CAMERON A., HELLIER C., LENDL M., LISTER T., PAXTED P., QUELOZ D., SMALLEY B., SMITH A., TRIAUD A., WEST R., BROWN D., GILLON M., PEPE F., POLLACCO D., SEGRANSAN D., STREET R. & UDRY S.
Astron. & Astrophys., 531, A60
paper   arxiv

The Exoplanet Orbit Database
2011 WRIGHT J., FAKHOURI O., MARCY G., HAN E., FENG Y., JOHNSON A., HOWARD A., VALENTI J., ANDERSON J. & PISKUNOV N.
PASP, 123, 412
paper   arxiv

The Reflection Effect in Interacting Binaries or in Planet-Star Systems
2011 BUDAJ J.
Astron. J., 141, 59
paper

Quantization of Planetary Systems and its Dependency on Stellar Rotation
2011 ZOGHBI J.-P.
Publ. Astron. Soc. Australia, 28, 177
paper   arxiv   ADS  

Defining and cataloging exoplanets: The exoplanet.eu database
2011 SCHNEIDER J., DEDIEU C., LE SIDANER P., SAVALLE R. & ZOLOTUKHIN I.
Astron. & Astrophys., 532, A79
paper   arxiv

UBV(RI)C photometry of transiting planet host stars
2011 MAXTED P., KOEN C. & SMALLEY B.
MNRAS, 418, 1039
paper   arxiv

TERMS Photometry of Known Transiting Exoplanets
2011 DRAGOMIR D., KANE S., PILYAVSKY G., MAHADEVAN S., CIARDI D. & 8 additional authors
Astron. J., 142, 115
paper   arxiv

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5

Discovery and Characterization of Transiting Extrasolar Planets
2010 ANDERSON D.
paper

The WASP-South search for transiting exoplanets
2010 HELLIER C., ANDERSON D., COLLIER CAMERON A. & 9 additional authors
paper   arxiv

Limits on the Orbits and Masses of Moons around Currently-Known Transiting Exoplanets
2010 WEIDNER C. & HORNE K.
Astron. & Astrophys., 521, A76
paper   preprint