走向内部一致的天文距离尺度
Toward an internally consistent astronomical distance scale
摘要：
精确的天文距离测定对于天体物理学的所有领域都是至关重要的，从银河到宇宙尺度。尽管，或者也许是因为，使用广泛的方法，示踪剂和技术来确定精确的距离的重大努力，内部一致的天文距离框架尚未建立。我们审查目前的努力，同质化的本地组的距离框架，特别强调RR天琴座恒星的距离指标的潜力，并试图在内部一致的方式扩展到宇宙学距离。基于Ia型超新星的校准和基于引力透镜的距离测定是特别有前途的方法。我们提供了一个积极的前景，以改善现状，预计从未来的调查，任务和设施。天文学距离测定显然已达到成熟和接近一致。
英文摘要：
Accurate astronomical distance determination is crucial for all fields in astrophysics, from Galactic to cosmological scales. Despite, or perhaps because of, significant efforts to determine accurate distances, using a wide range of methods, tracers, and techniques, an internally consistent astronomical distance framework has not yet been established. We review current efforts to homogenize the Local Group's distance framework, with particular emphasis on the potential of RR Lyrae stars as distance indicators, and attempt to extend this in an internally consistent manner to cosmological distances. Calibration based on Type Ia supernovae and distance determinations based on gravitational lensing represent particularly promising approaches. We provide a positive outlook to improvements to the status quo expected from future surveys, missions, and facilities. Astronomical distance determination has clearly reached maturity and near-consistency.
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