Lyman-alpha as an astrophysical and cosmological tool
著者
書誌事項
Lyman-alpha as an astrophysical and cosmological tool
（Saas-Fee Advanced Course, 46）
Springer, 2020, c2019
注記
"Swiss Society for Astrophysics and Astronomy"
Other authors: J. Xavier Prochaska, Masami Ouchi, Matthew Hayes
Other editors: Pierre North, Sebastiano Cantalupo, Hakim Atek
Includes bibliographical references and index
収録内容
- Physics of Lyα radiative transfer / Mark Dijkstra
- HI absorption in the intergalactic medium / J. Xavier Prochaska
- Observations of Lyα emitters at high redshift / Masami Ouchi
- Lyman alpha emission and absorption in local galaxies / Matthew Hayes
内容説明・目次
内容説明
The hydrogen Lyman-alpha line is of utmost importance to many fields of astrophysics. This UV line being conveniently redshifted with distance to the visible and even near infrared wavelength ranges, it is observable from the ground, and provides the main observational window on the formation and evolution of high redshift galaxies. Absorbing systems that would otherwise go unnoticed are revealed through the Lyman-alpha forest, Lyman-limit, and damped Lyman-alpha systems, tracing the distribution of baryonic matter on large scales, and its chemical enrichment.
We are living an exciting epoch with the advent of new instruments and facilities, on board of satellites and on the ground. Wide field and very sensitive integral field spectrographs are becoming available on the ground, such as MUSE at the ESO VLT. The giant E-ELT and TMT telescopes will foster a quantum leap in sensitivity and both spatial and spectroscopic resolution, to the point of being able, perhaps, to measure directly the acceleration of the Hubble flow. In space, the JWST will open new possibilities to study the Lyman-alpha emission of primordial galaxies in the near infrared. As long as the Hubble Space Telescope will remain available, the UV-restframe properties of nearby galaxies will be accessible to our knowledge. Therefore, this Saas-Fee course appears very timely and should meet the interest of many young researchers.
目次
Physics of Lya Radiative Transfer.- HI Absorption in the Intergalactic Medium.- Observations of Lya Emitters at High Redshift.- Lyman alpha Emission and Absorption in Local Galaxies.- Index.
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