SuperWASP Observations of the Transiting Extrasolar Planet XO‐1b

ABSTRACT We report on observations of 11 transit events of the transiting extrasolar planet XO‐1b by the SuperWASP North observatory. From our data, obtained during 2004 May–September, we find that the XO‐1b orbital period is 3.941634 ± 0.000137 days, the planetary radius is 1.34 \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} \landscape $R_{\mathrm{J}\,}$ \end{document} ± 0.12 \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd}...