标题： HR 7672伴星的近红外日冕成像 显示英文标题

标题： Near-IR coronagraphic imaging of the companion to HR 7672

摘要： 本文展示了在帕洛马200英寸望远镜上观测到的恒星HR 7672的低质量伴星的日冕图像，并且该伴星最初在K波段由 \citet{liu02}在双子座和凯克天文台首次探测到。 我们在 $J$($1.2\mu m$)、$H$($1.6\mu m$) 和 $K_s$($2.2\mu m$) 波段获得了额外的测光数据，以覆盖整个近红外区域，从而进一步限制伴星的性质。 根据非常低质量天体的演化模型，得出质量估计值为 58-71$ \mathrm{M_J}$。 显示英文摘要

摘要： This article presents coronagraphic images of the low-mass companion to the star HR 7672 observed at the Palomar 200 inch telescope and first detected at Gemini and Keck in the K band by \citet{liu02}. We obtained additional photometry in $J$($1.2\mu m$), $H$($1.6\mu m$) and $K_s$ ($2.2\mu m$) bands to cover the full near-IR domain and hence to further constrain the nature of the companion. A mass estimate of 58-71$ \mathrm{M_J}$ is derived from evolutionary models of very low-mass objects.