标题： 在1191.3纳米Meinel带窗口测量的极光的空间和时间稳定性 显示英文标题

标题： Spatial and Temporal Stability of Airglow Measured in the Meinel Band Window at 1191.3 nm

摘要： 我们报告了在Meinel发射线1191.3 nm之间的窄波段内大气亮度的时间和空间波动，使用R=320近红外仪器。 我们介绍了仪器的设计和实现，随后详细分析了从桌山天文台一整夜采集的数据。 在此波长处的绝对天空亮度为5330 +/- 30 nW m^-2 sr^-1，与这些波长处的带间气辉之前测量结果一致。 该振幅大于这些波长处气辉连续谱成分的简单模型，证实需要额外的发射或散射成分来解释观测结果。 我们对数据的噪声特性进行了详细研究，未发现与线间连续谱时间不稳定相关的噪声成分。 这一结果表明，在数小时的~100秒积分中，仪器的噪声性能似乎不会明显退化，证明了从地基站点进行近红外线强度映射可能是可行的。 显示英文摘要

摘要： We report on the temporal and spatial fluctuations in the atmospheric brightness in the narrow band between Meinel emission lines at 1191.3 nm using an R=320 near-infrared instrument. We present the instrument design and implementation, followed by a detailed analysis of data taken over the course of a night from Table Mountain Observatory. The absolute sky brightness at this wavelength is found to be 5330 +/- 30 nW m^-2 sr^-1, consistent with previous measurements of the inter-band airglow at these wavelengths. This amplitude is larger than simple models of the continuum component of the airglow emission at these wavelengths, confirming that an extra emissive or scattering component is required to explain the observations. We perform a detailed investigation of the noise properties of the data and find no evidence for a noise component associated with temporal instability in the inter-line continuum. This result demonstrates that in several hours of ~100s integrations the noise performance of the instrument does not appear to significantly degrade from expectations, giving a proof of concept that near-IR line intensity mapping may be feasible from ground-based sites.