Planet TW Hya b

Name TW Hya b
Discovered in 2007
Mass 1.2 (± 0.4) MJ
Mass*sin(i)
Semi-Major Axis 0.041 (± 0.002) AU
Orbital Period 3.56 (± 0.02) JD
Eccentricity 0.04 (± 0.03)
ω 105.0 (± 27.0) deg
Tperi
Radius
Inclination 7.0 (± 1.0) deg
Update 2008-08-23
Detection Method Controversial
Mass Detection Method
Radius Detection Method
Molecules
Primary transit
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

TW Hya
Name TW Hya
Distance 54.0 (± 5.0) pc
Spectral type K8V
Apparent magnitude V 11.1
Mass 0.7 (± 0.1) MSun
Age 0.009 (± 0.001) Gyr
Effective temperature 3600.0 K
Radius 1.08 RSun
Metallicity [Fe/H]
Detected Disc Imaging
Magnetic Field
RA2000 11:01:52.0
Dec2000 -34:42:17
Alternate Names
Planetary system 2 planets

More data

Observability Predictor

Remarks

23 Aug. 08: Huélamo et al. (2008) conclude that the RV variations are due to a stellar spot
08 Jan. 08: The inclination angle is derived from the inclination of the associated disk (Setiawan et al 2008). With an angle of 7° the true mass is 9.8 ± 3.3 MJ

Related publications

A photo-evaporative gap in the closest planet forming disc
2017 ERCOLANO B., ROSOTTI G., PICOGNA G. & TESTI L.
MNRAS, 464, L95
paper  arxiv  

Volatile carbon locking and release in protoplanetary disks. A study of TW Hya and HD 100546
2016 KAMA M., BRUDERER S., van DISHOEK E., HOGERHEIJDE M., FOLSOM C. et al.
Astron. & Astrophys., accepted

On the Commonality of 10-30AU Sized Axisymmetric Dust Structures in Protoplanetary Disks
2016 ZHANG K., BRGIN E., BLAKE G., ILESDORE CLEVES L., HOGERHEIJDE M. et al.
ApJ Letters, accepted
arxiv  

A Gap with a Deficit of Large Grains in the protoplanetary disk around TW Hya
2016 TSUKAGOSHI T., NOMURA H., MUTO T., KAWABE R., ISHIMOTO D. et al.
ApJ. Letters, 929, L35
paper  arxiv  ADS

First detection of gas-phase ammonia in a planet-forming disk
2016 SALINAS V., HOGERHEIJDE M., BERGIN E., CLEEVES I., BRINCH Ch. et al.
Astron. & Astrophys., submitted
arxiv  

Peering into the Giant Planet Forming Region of the TW Hydrae Disk with the Gemini Planet Imager
2015 RAPSON V., KASTNER J., MILLAR-BLANCHAER M. & DONG R.
ApJ Letters, 815, L26
arxiv   article  

On the structure of the transition disk around TW Hya
2014 MENU J., van BOEKEL R., HENNING Th., CHANDLER C., LINZ H. et al.
Astron. & Astrophys., accepted
arxiv  

Probing the presence of planets in transition discs' cavities via warps: the case of TW Hya
2014 FACCHINI S., RICCI L. & LODATO G.
MNRAS, 442, 3700
paper  arxiv  

The 0.5-2.22 μm Scattered Light Spectrum of the Disk around TW Hya: Detection of a Partially Filled Disk Gap at 80 AU
2013 DEBES J., JANG-CONDELL H., WEINBERGER A., ROBERGE A. & SCHNEIDER G.
ApJ, 771, 45
arxiv  

Kinematics of Ionized Gas at 0.01 AU of TW Hya
2012 GOTO M., CARMONA A., LINZ H., STECKLUM B., HENNING Th. & 2 additional authors
ApJ.
arxiv

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

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5

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

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

Emission Lines from the Gas Disk around TW Hydra and the Origin of the Inner Hole
2011 GORTI U., HOLLENBACH D., NAJITA J. & PASCUCCI I.
ApJ.
arxiv

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

Detection of the Water Reservoir in a Forming Planetary System
2011 HOGERHEIJDE M., BERGIN E., BRINCH Ch., CLEEVES L., FOGEL J. & 11 additional authors
Science, 334, 338
paper   arxiv

Radial Velocities with CRIRES: Pushing precision down to 5-10 m/s
2010 FIGUIRA P., PEPE F., MELO C., SANTOS N., LOVIS C., MAYOR M., QUELOZ D., SMETTE A. & UDRY S.
Astron. & Astrophys., 511, A55
paper

How eccentric orbital solutions can hide planetary systems in 2:1 resonant orbits
2010 ANGLADA-ESCUDE G., LOPEZ-MORALES M. & CHAMBERS J.
ApJ., 709, 168
paper

Imaging Young Planets From Ground and Space
2010 BEICHMAN Ch., KRIST J., TRAUGER J., GREENE T., OPPENHEIMER B., SIVARAMAKRISHNAN A., DOYON R., BOCCALETTI A., BARMAN T. & RIEKE M.
PASP, 122, 162
paper

A young massive planet in a star-disk system
2008 SETIAWAN J., HENNING T., LAUNHARDT R., MÜLLER A., WEISE P. & KÜRSTER M.
Nature, 451, 38
paper

TW Hydrae: evidence of stellar spots instead of a Hot Jupiter
2008 HUELAMO N., FIGUEIRA P., BONFILS X., SANTOS N., PEPE F., GUILLON M., AZEVEDO R., BARMAN T., FERNANDEZ M., di FOLCO E., GUENTHER E., LOVIS C., MELO C., QUELOZ D. & UDRY S.
Astron. & Astrophys., 489, L9
paper

Extrasolar Giant Planets and X-ray Activity
2008 KASHYAP V., DRAKE J. & SAAR S.
ApJ., 687, 1339
paper   arxiv