Planet GJ 3470 b

Name GJ 3470 b
Discovered in 2012
Mass 0.0437533292587 ( -0.00513931672341 +0.00514531263071 ) MJ
Mass*sin(i) 0.0437340716735 (± 0.00512852782934) MJ +
Semi-Major Axis 0.03557 (± 0.001) AU +
Orbital Period 3.33671 (± 5e-05) JD +
Eccentricity
ω
Tperi
Radius 0.3738074294 (± 0.0526363683404) RJ +
Inclination 88.3 (± 0.5) deg
Update 2013-11-05
Detection Method Primary Transit
Mass Detection Method
Radius Detection Method
Molecules
Primary transit 2456090.4769 (± 0.00015) 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

GJ 3470
Name GJ 3470
Distance 29.28 ( -1.7 +2.1 ) pc +
Spectral type M1.5
Apparent magnitude V 12.27
Mass 0.539 (± 0.047) MSun +
Age 1.0 ( -0.7 +0.7 ) Gyr
Effective temperature 3600.0 (± 100.0) K +
Radius 0.55 (± 0.012) RSun +
Metallicity [Fe/H] 0.2 (± 0.1)
Detected Disc
Magnetic Field
RA2000 07:59:06.0
Dec2000 +15:23:30
Alternate Names
Planetary system 1 planet

More data


Related publications

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

Observing transiting planets with JWST -- Prime targets and their synthetic spectral observations
2016 MOLLIERE P., van BOEKEL R., BOUWMAN J., HENNING Th., LAGAGE P.-O. & MIN M.
Astron. & Astrophy., accepted
arxiv  

Transit timing variation and transmission spectroscopy analyses of the hot Neptune GJ3470b
2016 AWIPHAN S., KERINS E., PICHADEE S., KOMONJINDA S., DHILLON V. et al.
MNRAS, 463, 2574
paper  arxiv  ADS

Trigonometric Parallaxes and Proper Motions of 134 Southern Late M, L, and T Dwarfs from the Carnegie Astrometric Planet Search Program
2016 WEINBERGER A., BOSS A., KEISER S., ANGLADA-ESCUDE G., THOMPSON I. & BURLEY G.
Astron. J., 152, 24
paper  arxiv  ADS  

Energy-limited escape revised. The transition from strong planetary winds to stable thermospheres
2016 SALZ M., SCHNEIDER P., CZESLA S. & SCHMITT J.
Astron. & Astrophys., 585, L2
paper   arxiv   ADS  

Using near infra-red spectroscopy for characterization of transiting exoplanets
2015 ARONSON E., WALDEN P. & PISKUNOV N.
Astron. & Astrophys., 578, A133
paper  arxiv  ADS

Rayleigh Scattering in the Atmosphere of the Warm Exo-Neptune GJ 3470b
2015 DRAGOMIR D., BENNEKE B., PEARSON K., CROSSFIELD I. et al.
ApJ, 814, 102
paper  arxiv  ADS

Exoplanetary Geophysics -- An Emerging Discipline
2015 LAUGHLIN G. & LISSAUER J.
Review Chapter in Treatise on Geophysics, accepted
arxiv  

Understanding the Mass-Radius Relation for Sub-Neptunes: Radius as a Proxy for Composition
2014 LOPEZ E. & FORTNEY J.
ApJ, 792, 1
paper   arxiv   ADS  

The atmospheric chemistry of the warm Neptune GJ 3470b: influence of metallicity and temperature on the CH4/CO ratio
2014 VENOT O., AGUNDEZ M., SELSIS F., TESSENYI M. & IRO N.
Astron. & Astrophys., 562, A51
paper  arxiv 

Near-infrared transmission spectrum of the warm-uranus GJ 3470b with the Wide Field Camera-3 on the Hubble Space Telescope
2014 EHRENREICH D., BONFILS X., LOVIS Ch., DELFOSSE X., FORVEILLE Th. et al.
Astron. & Astrophys., 570, A89
paper  arxiv 

Warm Ice Giant GJ 3470b. II Revised Planetary and Stellar Parameters from Optical to Near-infrared Transit Photometry
2014 BIDDLE L., PEARSON K., CROSSFIELD I., FULTON B., CICERI S. et al.
ApJ, submitted
arxiv  

Spitzer Observations of GJ3470b: a Very Low-density Neptune-size Planet Orbiting a Metal-rich M dwarf
2013 DEMORY B.-O., TORRES G., NEVES V., ROGERS L., GILLON M. & 11 additional authors
ApJ, submitted
arxiv  

The blue sky of GJ3470b: the atmosphere of a low-mass planet unveiled by ground-based photometry
2013 NASCIMBENI V., PIOTTO G., PAGANO I., SCANDARIATO G., SANI E. & FUMANA M.
Astron. & Astrophys., 559, A32
paper  arxiv 

Warm Ice Giant GJ 3470b. I. A Flat Transmission Spectrum Indicates a Hazy, Low-methane, and/or Metal-rich Atmosphere
2013 CROSSFIELD I., BARMAN, T. HANSEN B. &HOWARD A.
Astron. & Astrophys., 559, A33
paper  arxiv 

A hot Uranus transiting the nearby M dwarf GJ3470. Detected with HARPS velocimetry. Captured in transit with TRAPPIST photometry
2012 BONFILS X., GILLON M., UDRY S., ARMSTRONG D., BOUCHY F. & 13 additional authors
Astron. & Astrophys., 546, A27
paper   arxiv