LyaCoLoRe: synthetic datasets for current and future Lyman-α forest BAO surveys
نویسندگان
چکیده
منابع مشابه
Mg Simulations of the Lyman-α Forest
Our understanding of the Lyman-α forest has received a great boost with the advent of the Keck Telescope and large 3D hydro-dynamical simulations. We present new simulations using the SPH technique with a P 3 MG (Particle-Particle Particle-MultiGrid) non-periodic gravity solver. Our method employs a high resolution (1 kpc) inner volume , essential for capturing the complex gas physics, a larger...
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1 Institute of Astronomy, Madingley Road, CB3 0HA Cambridge, UK 2 INAF-Osservatorio Astronomico di Trieste, via G.B. Tiepolo 11, I-34131 Trieste, Italy 3 Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ 4 Harvard-Smithsonian Center for Astrohpysics, 60 Garden Street, Cambridge, MA 02198, USA 5 Dipartimento di Fisica ‘Galileo Galilei’ e INFN Sez. di Padova, via...
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Context. Many current and future surveys aim to detect the highest redshift (z & 7) sources through their Lyman-α (Lyα) emission, using the narrow-band imaging method. However, to date the surveys have only yielded non-detections and upper limits as no survey has reached the necessary combination of depth and area to detect these very young star forming galaxies. Aims. We aim to calculate model...
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The effective recombination coefficient, αeff , is refined for optically thin cases. Radiation pressure in Lyman-α and HeII Lyman-α is calculated in terms of the number density and the mean free path. Pressure equilibrium between Lyman-α clouds and an adiabatically expanding inter-galactic medium is assumed, niTi = ncTc. Numerical models of isothermal and adiabatic expanding Lyman-α forest clou...
متن کاملDamped Lyman α Surveys and Statistics: A Review
The discovery of the first damped Lyman alpha (DLA) system in the early 1970s followed by the recognition that DLAs arise in intervening galaxies opened up a new field of galaxy evolution research. These highest HI column density absorption-line systems trace the bulk of the observed neutral gas in the universe, and therefore, have been used as powerful probes of galaxy formation and evolution ...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2020
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2020/03/068