The host star, WASP -36, with a magnitude V = 12.7, metal-poor dwarf G2 (teff = 5959 ± 134 K), with [Fe/H] = -0.26 ± 0.10. The planet has a mass and radius, 2.30 ± 0.07 and 1.28 ± 0.03 times that of Jupiter, respectively. One of the surprising properties of WASP-36 is the low stellar metallicity ( [ Fe / H ] = -0.26 ± 0.10 ).
Giant planets are known to be infrequent around low-metallicity stars (e.g., Santos et al 2004b; . Fischer & Valenti 2005), although several other low metallicity systems are known, including transit systems between WASP -21 ([Fe/H]=-0.46 ± 0.11, Bouchy et al., 2010) , WASP -37 ( [ Fe / H ] = -0.40 ± 0.12 , Simpson et al . 2011) and HAT- P -12 ( [ Fe / H ] = -0.29 ± 0.05 , Hartman et al. 2009 ) . WASP-36b may also play a key role in determining whether stellar metallicity is the key parameter influencing whether or not the atmosphere of a hot Jupiter exhibits thermal inversion.
https://arxiv.org/abs/1110.5313
Observations of WASP-36b
Collaborative projects
