Planet TW Hya b
| Name | TW Hya b | ||
| Planet Status | Candidate | ||
| Discovered in | 2007 | ||
| Mass | 1.2 ( -0.4 +0.4 ) MJ | ||
| Mass*sin(i) | — | ||
| Semi-Major Axis | 0.041 (± 0.002) AU |  |
|
| Orbital Period | 3.56 (± 0.02) day | |
|
| Eccentricity | 0.04 (± 0.03) | |
|
| ω | 105.0 (± 27.0) deg | |
|
| Tperi | — | ||
| Radius | — | ||
| Inclination | 7.0 (± 1.0) deg | |
|
| Update | 2021-09-01 | ||
| Detection Method | Default | ||
| Mass Detection Method | — | ||
| Radius Detection Method | — | ||
| 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 | 1 planet |
Observability Predictor 
Remarks
23 Aug. 08: Huélamo et al. (2008) conclude that the RV variations are due to a stellar spot08 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
Directly Detecting the Envelopes of Low-mass Planets Embedded In Protoplanetary discs and The Case For TW Hydrae
2023
ZHU Zh., BAILEY A., MACIAS E., MUTO T. & ANDREWS S.
MNRAS, 518, 5808
paper arxiv
ALMA High-resolution Multiband Analysis for the Protoplanetary Disk around TW Hya
2022
TSUKAGOSHI T., NOMURA H., MUTO T., KAWABE R., KANAGAWA K. et al.
ApJ, 928, 49
paper
New Mid-Infrared Imaging Constraints on Companions and Protoplanetary Disks around six Young Stars
2021
PETIT de la ROCHE D., OBERG N., van den ANCKER M., KAMP I., van BOECKEL R. et al.
Astron. & Astrophys., in press
paper arxiv
Measuring the atomic composition of planetary building blocks
2020
McCLURE M., DOMINIK C. & KAMA M.
Astron. & Astrophys., 642, L15
paper
TW Hya: an old protoplanetary disc revived by its planet
2020
NAYAKSHIN S., TSUKAGOSHI T., HALL C., VAZAN A., HELLED R. et al.
MNRAS, in press
paper arxiv
Dust dynamics in planet-driven spirals
2020
STURM A., ROSOTTI G. & DOMINIK C.
Astron. & Astrophys., 643, A92
paper arxiv
Theoretical model of HD 163296 presently forming in-situ planets and comparison with the models of AS 209, HL Tau, and TW Hya
2019
CHRISTODOULOU D. & KAZENAS D.
arxiv
Constraining Accretion Signatures of Exoplanets in the TW Hya Transitional Disk
2017
UYAMA, T., TANIGAWA, T., HASHIMOTO, J. & 4 additional authors
Astron. J., 154, 90
arxiv
paper
ADS
A photo-evaporative gap in the closest planet forming disc
2017
ERCOLANO B., ROSOTTI G., PICOGNA G. & TESTI L.
MNRAS, 464, L95
paper arxiv
What is the Mass of a Gap-Opening Planet?
2017
DONG R. & FUNG J.
ApJ, 835, 146
paper arxiv ADS
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
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
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
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
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
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
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
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
Taxonomy of the extrasolar planet
2012
PLAVALOVA E.
Astrobiology, 12, 361
paper 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
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
Quantization of Planetary Systems and its Dependency on Stellar Rotation
2011
ZOGHBI J.-P.
Publ. Astron. Soc. Australia, 28, 177
paper arxiv ADS
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 Exoplanet Handbook
2011
Michael Perryman
Content
Content and Chapter 5
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
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
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
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
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
Extrasolar Giant Planets and X-ray Activity
2008
KASHYAP V., DRAKE J. & SAAR S.
ApJ., 687, 1339
paper
arxiv
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
