The Properties of XO-5b and WASP-82b Redetermined Using New High-Precision Transit Photometry and Global Data Analyses

• Autorzy: Smith A. M. S.
• Języki publikacji: EN

Abstrakty

EN

This paper presents new transit photometry from the Isaac Newton Telescope of two transiting exoplanetary systems, XO-5 and WASP-82. In each case the new transit light curve is more precise than any other of that system previously published. The new data are analyzed alongside previously-published photometry and radial velocities, resulting in an improved orbital ephemeris and a refined set of system parameters in each case. The observational baseline of XO-5 is extended by very nearly four years, resulting in a determination of the orbital period of XO-5b to a precision of just 50 ms. The mass and radius of XO-5b are 1.19±0.03 and 1.14±0.03 times those of Jupiter, respectively. The light curve of WASP-82 is only the second published for this system. The planetary mass is 1.25±0.05 M_Jup, and the radius is 1.71±0.08 R_Jup.

Słowa kluczowe

EN

planetary systems; planets: fundamental parameters; satellites: fundamental parameters; stars: individual: WASP-82; stars: individual: XO-5

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2015
• Tom: Vol. 65, No. 1
• Strony: 117--125
• Opis fizyczny: Bibliogr. 22 poz., tab., wykr.

Twórcy

autor

Smith A. M. S.

• Nicolaus Copernicus Astronomical Centre, Bartycka 18, 00-716 Warsaw, Poland

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