Over-Luminosity of J1207-3900

This figure shows the expected position of J1207-3900 (Thick green line; Gagné et al. 2014b, see first link below) and its uncertainty (dashed green line) in a spectral type-absolute magnitude diagram (from Liu et al. 2013, see second link below), using the statistical distance prediction from BANYAN II (Gagné et al. 2014a, see third link below). It can be seen that J1207-3900 is expected to be neither over- or under- luminous as compared to old, field L dwarfs. This is consistent with other young L1 dwarfs, which are inflated, but more dusty ; the two effects cancel out on their total luminosity. However, due to enhanced dust it has redder than normal NIR colors (see Gagné e tal. 2014b). Please cite all 3 references in the links below if you use this figure.本图基于BANYAN II（Gagné等，2014a，见下方第三个链接）的统计距离预测结果，绘制了天体J1207-3900（粗绿线；Gagné等，2014b，见下方第一个链接）在光谱型-绝对星等图（Liu等，2013，见下方第二个链接）中的预期位置，及其对应的不确定度范围（绿色虚线）。分析可知，相较于古老的银河场L型矮星，J1207-3900的光度既未过亮也未过暗。这与其他年轻L1型矮星的特性一致：这类天体存在半径膨胀现象，但尘埃丰度更高，两种效应相互抵消，使得总光度维持正常水平。不过，由于尘埃增强效应，其近红外（Near-Infrared, NIR）颜色较标准值更偏红（详见Gagné等，2014b）。若使用本图，请一并引用下方链接中的三篇参考文献。