论文标题
美国海军天文台VLBI光谱目录
The U.S. Naval Observatory VLBI Spectroscopic Catalog
论文作者
论文摘要
尽管它们对天文标准和导航的重要性，但构成国际天体参考框架（ICRF）的主动银河核（AGN）还是相对较少的理解，其关键信息诸如光谱式红移，AGN光谱类型，以及文献中普遍缺少的发射/吸收线。使用针对从低红移到高红移的AGN光谱优化的更新，公开可用的，最先进的光谱拟合代码，我们提出了1,014个唯一的ICRF3对象的发射线和光谱连续参数目录，该参数具有来自Sloan Digital Sky Surge Survey DR16的单纤维光谱。我们还提供黑洞病毒质量缩放关系，使用H $α$ - ，H $β$ - ，Mg II-和C IV的线条宽度，它们彼此彼此一致，可以用于研究各种红移的无线电对象的研究，我们使用这些缩放关系来提供诸如黑洞质量和亮度的派生属性，以提供诸如黑洞质量和亮度效果。我们简要对ICRF对象及其整体光谱特征进行简要评论。
Despite their importance for astrometry and navigation, the active galactic nuclei (AGNs) that comprise the International Celestial Reference Frame (ICRF) are relatively poorly understood, with key information such as their spectroscopic redshifts, AGN spectral type, and emission/absorption line properties generally missing from the literature. Using updated, publicly available, state-of-the-art spectroscopic fitting code optimized for the spectra of AGNs from low to high redshift, we present a catalog of emission line and spectral continuum parameters for 1,014 unique ICRF3 objects with single-fiber spectra from the Sloan Digital Sky Survey DR16. We additionally present black hole virial mass scaling relationships that use H$α$-, H$β$-, Mg II-, and C IV-based line widths, all consistent with each other, which can be used in studies of radio-loud objects across a wide range of redshifts, and we use these scaling relationships to provide derived properties such as black hole masses and bolometric luminosities for the catalog. We briefly comment on these properties for the ICRF objects, as well as their overall spectroscopic characteristics.
