论文标题
解开L/T过渡棕色矮人中混合光气的签名
Disentangling the Signatures of Blended-Light Atmospheres in L/T Transition Brown Dwarfs
论文作者
论文摘要
我们提出了一种技术，可以鉴定分光光度法可变的L7-T3棕色矮人，具有单个上位置，低分辨率，近红外Spex光谱。我们在已知的可变棕色矮人上计算了光谱指数，并使用它们选择了11个索引索引参数空间，在这些空间中，可以将已知变量与棕色矮人的其他一般群体区分开。我们发现62个候选变量，其中12个在独立的光度监测调查中显示出显着的可变性幅度。该技术构成了识别时间依赖性效应的第一种形式方法，例如其集成光谱中特性的变异性。该技术将是一个有用的工具，可以优先考虑JWST和30m级望远镜时代的未来光度和光谱监测目标。
We present a technique to identify spectrophotometrically variable L7-T3 brown dwarfs with single-epoch, low-resolution, near-infrared SpeX spectra. We calculated spectral indices on known variable brown dwarfs and used them to select 11 index-index parameter spaces where known variables can be distinguished from the rest of the general population of brown dwarfs. We find 62 candidate variables, 12 of which show significant variability amplitude in independent photometric monitoring surveys. This technique constitutes the first formal method to identify a time-dependent effect such as variability from peculiarities in their integrated light spectra. This technique will be a useful tool to prioritize targets for future photometric and spectroscopic monitoring in the era of JWST and 30m-class telescopes.
