原文:An unusual Brown Dwarf
As part of the Gemini South NICI Planet-finding campaign, Beth Biller and team have found an unusual star-brown dwarf pair. PZ Tel A, a young sun-like star, was imaged with NICI (Near-Infrared Coronagraphic Imager) using adaptive optics to detect the brown dwarf (PZ Tel B), which is in a highly elliptical orbit. Specialized image analysis techniques were used to remove a vast majority of light from PZ Tel A in this image (left). This is one of few brown dwarfs imaged at a distance closer than 30 Astronomical Units from its parent star. On the right the range of sizes of a brown dwarf compared to Jupiter and the Earth (to scale) is illustrated.
Results are being published in ApJ letters 2010 ApJ 720 L82.
翻译:一个不寻常的棕矮星作为部分的双子座南NICI Planet-finding战役中,贝丝Biller和团队发现不寻常的star-brown矮人的一对。一,一位年轻PZ添星,反映和日轮式NICI(近红外Coronagraphic相机),采用自适应光学侦测PZ褐矮星(B),这是电话在一个高度椭圆的轨道。专业的图象分析技术来移除一个绝大部份的光在这一形象添PZ(左)。这是一个少数棕矮星成像距离超过30个天文单位从它的恒星。在右边的范围的棕矮星比木星和地球(比例)。
结果被发表在ApJ ApJ 720 L82信件到2010年。 |