Measuring the temperature and profiles of Ly alpha absorbers

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Standard

Measuring the temperature and profiles of Ly alpha absorbers. / Garzilli, Antonella; Theuns, Tom; Schaye, Joop.

I: Monthly Notices of the Royal Astronomical Society, Bind 492, Nr. 2, 02.2020, s. 2193-2207.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Garzilli, A, Theuns, T & Schaye, J 2020, 'Measuring the temperature and profiles of Ly alpha absorbers', Monthly Notices of the Royal Astronomical Society, bind 492, nr. 2, s. 2193-2207. https://doi.org/10.1093/mnras/stz3585

APA

Garzilli, A., Theuns, T., & Schaye, J. (2020). Measuring the temperature and profiles of Ly alpha absorbers. Monthly Notices of the Royal Astronomical Society, 492(2), 2193-2207. https://doi.org/10.1093/mnras/stz3585

Vancouver

Garzilli A, Theuns T, Schaye J. Measuring the temperature and profiles of Ly alpha absorbers. Monthly Notices of the Royal Astronomical Society. 2020 feb.;492(2):2193-2207. https://doi.org/10.1093/mnras/stz3585

Author

Garzilli, Antonella ; Theuns, Tom ; Schaye, Joop. / Measuring the temperature and profiles of Ly alpha absorbers. I: Monthly Notices of the Royal Astronomical Society. 2020 ; Bind 492, Nr. 2. s. 2193-2207.

Bibtex

@article{ebf0f192dd344e8297b33b1a398041b2,
title = "Measuring the temperature and profiles of Ly alpha absorbers",
abstract = "The distribution of the absorption line broadening observed in the Ly alpha forest carries information about the temperature, T, and widths, lambda(F), of the filaments in the intergalactic medium (IGM), and the background hydrogen photoionization rate, Gamma(HI). In this work, we present and test a new method for inferring T and lambda(F) and Gamma HI from combining the distribution of the absorption line broadening and the median flux. The method accounts for any underlying degeneracies. We apply our method to mock spectra from the reference model of the EAGLE cosmological simulation, and we demonstrate that we are able to reconstruct the IGM properties.",
keywords = "methods: data analysis, intergalactic medium, quasars: absorption lines, large-scale structure of Universe, EQUATION-OF-STATE, FLUX PROBABILITY-DISTRIBUTION, SMALL-SCALE STRUCTURE, INTERGALACTIC MEDIUM, GALAXY FORMATION, POWER SPECTRUM, EAGLE SIMULATIONS, HYDRODYNAMICAL SIMULATIONS, DENSITY RELATION, THERMAL HISTORY",
author = "Antonella Garzilli and Tom Theuns and Joop Schaye",
year = "2020",
month = feb,
doi = "10.1093/mnras/stz3585",
language = "English",
volume = "492",
pages = "2193--2207",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "2",

}

RIS

TY - JOUR

T1 - Measuring the temperature and profiles of Ly alpha absorbers

AU - Garzilli, Antonella

AU - Theuns, Tom

AU - Schaye, Joop

PY - 2020/2

Y1 - 2020/2

N2 - The distribution of the absorption line broadening observed in the Ly alpha forest carries information about the temperature, T, and widths, lambda(F), of the filaments in the intergalactic medium (IGM), and the background hydrogen photoionization rate, Gamma(HI). In this work, we present and test a new method for inferring T and lambda(F) and Gamma HI from combining the distribution of the absorption line broadening and the median flux. The method accounts for any underlying degeneracies. We apply our method to mock spectra from the reference model of the EAGLE cosmological simulation, and we demonstrate that we are able to reconstruct the IGM properties.

AB - The distribution of the absorption line broadening observed in the Ly alpha forest carries information about the temperature, T, and widths, lambda(F), of the filaments in the intergalactic medium (IGM), and the background hydrogen photoionization rate, Gamma(HI). In this work, we present and test a new method for inferring T and lambda(F) and Gamma HI from combining the distribution of the absorption line broadening and the median flux. The method accounts for any underlying degeneracies. We apply our method to mock spectra from the reference model of the EAGLE cosmological simulation, and we demonstrate that we are able to reconstruct the IGM properties.

KW - methods: data analysis

KW - intergalactic medium

KW - quasars: absorption lines

KW - large-scale structure of Universe

KW - EQUATION-OF-STATE

KW - FLUX PROBABILITY-DISTRIBUTION

KW - SMALL-SCALE STRUCTURE

KW - INTERGALACTIC MEDIUM

KW - GALAXY FORMATION

KW - POWER SPECTRUM

KW - EAGLE SIMULATIONS

KW - HYDRODYNAMICAL SIMULATIONS

KW - DENSITY RELATION

KW - THERMAL HISTORY

U2 - 10.1093/mnras/stz3585

DO - 10.1093/mnras/stz3585

M3 - Journal article

VL - 492

SP - 2193

EP - 2207

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 2

ER -

ID: 248237134