Sherry H Suyu, Ariel Goobar, Thomas Collett, Anupreeta More, Giorgos Vernardos
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引用次数: 0
摘要
近年来,超新星(SNe)的强引力透镜和微透镜正在成为宇宙学和天体物理学的新探针。我们概述了这一新兴研究领域,首先总结了首次发现的强透镜超新星。我们介绍了如何利用多个 SN 图像之间的时间延迟来测量宇宙学距离,从而约束宇宙学参数,特别是哈勃常数,而哈勃常数的值目前正处于激烈的争论之中。测量有透镜自发彗星时间延迟的新方法已经开发出来,即将进行的鲁宾天文台时空遗留巡天(LSST)的有透镜自发彗星样本有望提供有竞争力的宇宙学约束。透镜SNE也是强大的天体物理探测器。我们回顾了利用透镜原核天体来约束原核天体的祖先、通过透镜放大获得高兹原核天体光谱、通过微透镜推断原核天体的大小以及测量星系中尘埃的性质。该领域目前面临的挑战是发现透镜原核的罕见性和难度。我们介绍了发现这些壮观爆炸的各种方法和正在进行的努力,预测了即将进行的巡天(尤其是 LSST)中预期的有透镜自发彗星样本的性质,并总结了进行各种科学研究所需的观测跟踪要求。我们预计,在接下来的几年里,有透镜SN的发现将是令人兴奋的。
Strong Gravitational Lensing and Microlensing of Supernovae.
Strong gravitational lensing and microlensing of supernovae (SNe) are emerging as a new probe of cosmology and astrophysics in recent years. We provide an overview of this nascent research field, starting with a summary of the first discoveries of strongly lensed SNe. We describe the use of the time delays between multiple SN images as a way to measure cosmological distances and thus constrain cosmological parameters, particularly the Hubble constant, whose value is currently under heated debates. New methods for measuring the time delays in lensed SNe have been developed, and the sample of lensed SNe from the upcoming Rubin Observatory Legacy Survey of Space and Time (LSST) is expected to provide competitive cosmological constraints. Lensed SNe are also powerful astrophysical probes. We review the usage of lensed SNe to constrain SN progenitors, acquire high-z SN spectra through lensing magnifications, infer SN sizes via microlensing, and measure properties of dust in galaxies. The current challenge in the field is the rarity and difficulty in finding lensed SNe. We describe various methods and ongoing efforts to find these spectacular explosions, forecast the properties of the expected sample of lensed SNe from upcoming surveys particularly the LSST, and summarize the observational follow-up requirements to enable the various scientific studies. We anticipate the upcoming years to be exciting with a boom in lensed SN discoveries.
期刊介绍:
Space Science Reviews (SSRv) stands as an international journal dedicated to scientific space research, offering a contemporary synthesis across various branches of space exploration. Emphasizing scientific outcomes and instruments, SSRv spans astrophysics, physics of planetary systems, solar physics, and the physics of magnetospheres & interplanetary matter.
Beyond Topical Collections and invited Review Articles, Space Science Reviews welcomes unsolicited Review Articles and Special Communications. The latter encompass papers related to a prior topical volume/collection, report-type papers, or timely contributions addressing a robust combination of space science and technology. These papers succinctly summarize both the science and technology aspects of instruments or missions in a single publication.