通过OH森林窥视：SDSS DR7天空残差扣除光谱的公开发布
Peering through the OH Forest: public release of sky-residual subtracted spectra for SDSS DR7
摘要：
斯隆数字巡天（SDSS）自动光谱还原管道提供> 150万中间分辨率，R~2000，中等信噪比（SNR），SNR~15，覆盖波长范围3800- 9200 AA的前所未有的均匀性天文光谱。然而，在许多光谱中仍然存在显着的系统残差，由于次优扣除的强OH天空发射线的6700 AA。OH天空线延伸超过SDSS光谱的几乎一半的波长范围，并且在许多光谱中的实质性波长区域上的SNR比光子计数统计预期的降低超过两倍。根据Wild & Hewett（2005）中提出的OH线减法程序，我们为Sloan Digital Sky Survey Data Relase 7提供了天空残差减法光谱。在此，我们简要总结了该方法，包括在实施WH 05程序方面的微小变化。光谱适用于许多科学应用，但我们强调某些调查的一些限制。提供了天空残差扣除光谱的数据模型的细节和如何访问光谱的说明。
英文摘要：
The Sloan Digital Sky Survey (SDSS) automated spectroscopic reduction pipeline provides >1.5 million intermediate resolution, R~2000, moderate signal-to-noise ratio (SNR), SNR~15, astronomical spectra of unprecedented homogeneity that cover the wavelength range 3800-9200AA. However, there remain significant systematic residuals in many spectra due to the sub-optimal subtraction of the strong OH sky emission lines longward of 6700AA. The OH sky lines extend over almost half the wavelength range of the SDSS spectra, and the SNR over substantial wavelength regions in many spectra is reduced by more than a factor two over that expected from photon counting statistics. Following the OH line subtraction procedure presented in Wild & Hewett (2005), we make available to the community sky-residual subtracted spectra for the Sloan Digital Sky Survey Data Relase 7. Here we summarise briefly the method, including minor changes in the implementation of the procedure with respect to WH05. The spectra are suitable for many science applications but we highlight some limitations for certain investigations. Details of the data model for the sky-residual subtracted spectra and instructions on how to access the spectra are provided.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
