Publication

Probing the nature of dark matter through the metal enrichment of the intergalactic medium

Bremer, J., Dayal, P. & Ryan-Weber, E. V., Jun-2018, In : Monthly Notices of the Royal Astronomical Society. 477, 2, p. 2141-2150 10 p.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Bremer, J., Dayal, P., & Ryan-Weber, E. V. (2018). Probing the nature of dark matter through the metal enrichment of the intergalactic medium. Monthly Notices of the Royal Astronomical Society, 477(2), 2141-2150. https://doi.org/10.1093/mnras/sty771

Author

Bremer, Jonas ; Dayal, Pratika ; Ryan-Weber, Emma V. / Probing the nature of dark matter through the metal enrichment of the intergalactic medium. In: Monthly Notices of the Royal Astronomical Society. 2018 ; Vol. 477, No. 2. pp. 2141-2150.

Harvard

Bremer, J, Dayal, P & Ryan-Weber, EV 2018, 'Probing the nature of dark matter through the metal enrichment of the intergalactic medium' Monthly Notices of the Royal Astronomical Society, vol. 477, no. 2, pp. 2141-2150. https://doi.org/10.1093/mnras/sty771

Standard

Probing the nature of dark matter through the metal enrichment of the intergalactic medium. / Bremer, Jonas; Dayal, Pratika; Ryan-Weber, Emma V.

In: Monthly Notices of the Royal Astronomical Society, Vol. 477, No. 2, 06.2018, p. 2141-2150.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Bremer J, Dayal P, Ryan-Weber EV. Probing the nature of dark matter through the metal enrichment of the intergalactic medium. Monthly Notices of the Royal Astronomical Society. 2018 Jun;477(2):2141-2150. https://doi.org/10.1093/mnras/sty771


BibTeX

@article{118b49885b4e45639608f4b4f7035461,
title = "Probing the nature of dark matter through the metal enrichment of the intergalactic medium",
abstract = "We focus on exploring the metal enrichment of the intergalactic medium (IGM) in cold and warm (1.5 and 3 keV) dark matter (DM) cosmologies, and the constraints this yields on the DM particle mass, using a semi-analytic model, DELPHI, that jointly tracks the DM and baryonic assembly of galaxies at z similar or equal to 4-20 including both supernova (SN) and (a range of) reionization feedback (models). We find that while M-UV greater than or similar to -15 galaxies contribute half of all IGM metals in the cold dark matter (CDM) model by z similar or equal to 4.5, given the suppression of low-mass haloes, larger haloes with M-UV greater than or similar to -15 provide about 80 per cent of the IGM metal budget in 1.5 keV warm dark matter (WDM) models using two different models for the metallicity of the interstellar medium. Our results also show that the only models compatible with two different high-redshift data sets, provided by the evolving ultraviolet luminosity function (UV LF) at z similar or equal to 6-10 and IGM metal density, are standard CDM and 3 keV WDM that do not include any reionization feedback; a combination of the UV LF and the Diaz et al. point provides a weaker constraint, allowing CDM and 3 and 1.5 keV WDM models with SN feedback only, as well as CDM with complete gas suppression of all haloes with v(circ) less than or similar to 30 km s(-1). Tightening the error bars on the IGM metal enrichment, future observations, at z greater than or similar to 5.5, could therefore represent an alternative way of shedding light on the nature of DM.",
keywords = "galaxies: evolution, galaxies: high-redshift, intergalactic medium, dark matter, ULTRA-DEEP-FIELD, SIMILAR-TO 7, GALAXY LUMINOSITY FUNCTION, MASS-METALLICITY RELATION, STAR-FORMATION RATES, HUBBLE FRONTIER FIELDS, HIGH-REDSHIFT GALAXIES, LYMAN-BREAK GALAXIES, STELLAR MASS, BRIGHT END",
author = "Jonas Bremer and Pratika Dayal and Ryan-Weber, {Emma V.}",
note = "Accepted to MNRAS",
year = "2018",
month = "6",
doi = "10.1093/mnras/sty771",
language = "English",
volume = "477",
pages = "2141--2150",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "2",

}

RIS

TY - JOUR

T1 - Probing the nature of dark matter through the metal enrichment of the intergalactic medium

AU - Bremer, Jonas

AU - Dayal, Pratika

AU - Ryan-Weber, Emma V.

N1 - Accepted to MNRAS

PY - 2018/6

Y1 - 2018/6

N2 - We focus on exploring the metal enrichment of the intergalactic medium (IGM) in cold and warm (1.5 and 3 keV) dark matter (DM) cosmologies, and the constraints this yields on the DM particle mass, using a semi-analytic model, DELPHI, that jointly tracks the DM and baryonic assembly of galaxies at z similar or equal to 4-20 including both supernova (SN) and (a range of) reionization feedback (models). We find that while M-UV greater than or similar to -15 galaxies contribute half of all IGM metals in the cold dark matter (CDM) model by z similar or equal to 4.5, given the suppression of low-mass haloes, larger haloes with M-UV greater than or similar to -15 provide about 80 per cent of the IGM metal budget in 1.5 keV warm dark matter (WDM) models using two different models for the metallicity of the interstellar medium. Our results also show that the only models compatible with two different high-redshift data sets, provided by the evolving ultraviolet luminosity function (UV LF) at z similar or equal to 6-10 and IGM metal density, are standard CDM and 3 keV WDM that do not include any reionization feedback; a combination of the UV LF and the Diaz et al. point provides a weaker constraint, allowing CDM and 3 and 1.5 keV WDM models with SN feedback only, as well as CDM with complete gas suppression of all haloes with v(circ) less than or similar to 30 km s(-1). Tightening the error bars on the IGM metal enrichment, future observations, at z greater than or similar to 5.5, could therefore represent an alternative way of shedding light on the nature of DM.

AB - We focus on exploring the metal enrichment of the intergalactic medium (IGM) in cold and warm (1.5 and 3 keV) dark matter (DM) cosmologies, and the constraints this yields on the DM particle mass, using a semi-analytic model, DELPHI, that jointly tracks the DM and baryonic assembly of galaxies at z similar or equal to 4-20 including both supernova (SN) and (a range of) reionization feedback (models). We find that while M-UV greater than or similar to -15 galaxies contribute half of all IGM metals in the cold dark matter (CDM) model by z similar or equal to 4.5, given the suppression of low-mass haloes, larger haloes with M-UV greater than or similar to -15 provide about 80 per cent of the IGM metal budget in 1.5 keV warm dark matter (WDM) models using two different models for the metallicity of the interstellar medium. Our results also show that the only models compatible with two different high-redshift data sets, provided by the evolving ultraviolet luminosity function (UV LF) at z similar or equal to 6-10 and IGM metal density, are standard CDM and 3 keV WDM that do not include any reionization feedback; a combination of the UV LF and the Diaz et al. point provides a weaker constraint, allowing CDM and 3 and 1.5 keV WDM models with SN feedback only, as well as CDM with complete gas suppression of all haloes with v(circ) less than or similar to 30 km s(-1). Tightening the error bars on the IGM metal enrichment, future observations, at z greater than or similar to 5.5, could therefore represent an alternative way of shedding light on the nature of DM.

KW - galaxies: evolution

KW - galaxies: high-redshift

KW - intergalactic medium

KW - dark matter

KW - ULTRA-DEEP-FIELD

KW - SIMILAR-TO 7

KW - GALAXY LUMINOSITY FUNCTION

KW - MASS-METALLICITY RELATION

KW - STAR-FORMATION RATES

KW - HUBBLE FRONTIER FIELDS

KW - HIGH-REDSHIFT GALAXIES

KW - LYMAN-BREAK GALAXIES

KW - STELLAR MASS

KW - BRIGHT END

UR - https://arxiv.org/abs/1803.05450

U2 - 10.1093/mnras/sty771

DO - 10.1093/mnras/sty771

M3 - Article

VL - 477

SP - 2141

EP - 2150

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -

ID: 66207163