Planet CT Cha b

Name CT Cha b
Planet Status Confirmed
Discovered in 2008
Mass 17 ( -6 +6 ) MJ
Mass*sin(i)
Semi-Major Axis 440 AU
Orbital Period
Eccentricity
ω
Tperi
Radius 2.2 ( -0.6 +0.6 ) RJ
Inclination
Update 2008-09-24
Detection Method Imaging
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

CT Cha
Name CT Cha
Distance 165 (± 30) pc
Spectral type K7
Apparent magnitude V 12.36
Mass
Age 0.002 (± 0.002) Gyr +
Effective temperature
Radius
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 11:04:09.0
Dec2000 -76:27:19
Alternate Names
Planetary system 1 planet

More data

Observability Predictor

Remarks

24 Sep. 2008: As Explained by Schmidt and Neuheuser (2008), "the probability for CT Cha not being bound and not orbiting each other, but being independent members of Cha I is very small, namely 4 * 10^(-3) or 0.4 %
18 Sep. 2008: Schmidt et al (2008) say that they "cannot yet exclude [parent star and companion] being independent members of Cha I, thus, not orbiting each other."

Related publications

An Explanation of the Very Low Radio Flux of Young Planet-mass Companions
2017 WU Y.-L., CLOSE L., EISNER J. & SHEEHAN P.
Astron. J., 154, 234
paper  arxiv  

New Extinction and Mass Estimates from Optical Photometry of the Very Low Mass Brown Dwarf Companion CT Chamaeleontis B with the Magellan AO System
2015 WU Y.-L., CLOSE L., MALES J., BARMAN T., MORZINSKI K. et al.
ApJ, accepted
arxiv  

Observations of Exoplanet Atmospheres
2015 CROSSFIELD I.
PASP, in press
arxiv  paper   ADS  

Spectroscopy across the brown dwarf/planetary mass boundary - I. Near-infrared JHK spectra
2012 PATIENCE J., KING R., DE ROSA R., VIGAN A., WITTE S. & 3 additional authors
Astron. & Astrophys., 540, A85
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

Direct Imaging of Extra-solar Planets - Homogeneous Comparison of Detected Planets and Candidates
2012 NEUHAUSER R. & SCHMIDT T.
in "Topics in Adaptive Optics", Chap 3
Full text  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

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5

Estimates of the Planet Yield from Ground-Based High-Contrast Imaging Observations as a Function of Stellar Mass
2011 CREPP J. & JOHNSON J.
ApJ., 733, 126
paper   arxiv

Exoplanet Data Explorer
2010 WRIGHT J., MARCY G. & the California Planet Survey consortium
web page

The Hill stability of the possible moons of extrasolar planets
2010 DONNISON J.
MNRAS, 406, 1918
paper

Formation and evolution of planetary systems: the impact of high angular resolution optical techniques
2010 ABSIL O. & MAWET D.
Astron. & Astrophys. Rev., 18, 317
paper   astro-ph

New astrometry and photometry for the companion candidates of CT Cha
2009 SCHMIDT T., NEUHÄUSER R., MUGRAUER M., BEDALOV A. & VOGT S.
paper

Finding new sub-stellar co-moving companion candidates - the case of CT Cha
2009 SCHMIDT T. & NEUHÄUSER R.
paper

Homogeneous comparison of planet candidates imaged directly until 2008
2009 SCHMIDT T., NEUHÄUSER R. & SEIFAHRT A.
arxiv   paper

Direct evidence of a sub-stellar companion around CT Cha
2008 SCHMIDT T., NEUHÄUSER R., SEIFAHRT A., VOGT N. BEDALOV A., HELLING Ch., WHITE S. & HAUSCHILDT P.
Astron. & Astrophys., 491, 311
paper