Investigating the [C II]-to-H I Conversion Factor and the H I Gas Budget of Galaxies at z approximate to 6 with Hydrodynamic Simulations

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Investigating the [C II]-to-H I Conversion Factor and the H I Gas Budget of Galaxies at z approximate to 6 with Hydrodynamic Simulations. / Vizgan, David; Heintz, Kasper E.; Greve, Thomas R.; Narayanan, Desika; Dave, Romeel; Olsen, Karen P.; Popping, Gergo; Watson, Darach.

In: Astrophysical Journal Letters, Vol. 939, No. 1, L1, 01.11.2022.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Vizgan, D, Heintz, KE, Greve, TR, Narayanan, D, Dave, R, Olsen, KP, Popping, G & Watson, D 2022, 'Investigating the [C II]-to-H I Conversion Factor and the H I Gas Budget of Galaxies at z approximate to 6 with Hydrodynamic Simulations', Astrophysical Journal Letters, vol. 939, no. 1, L1. https://doi.org/10.3847/2041-8213/ac982c

APA

Vizgan, D., Heintz, K. E., Greve, T. R., Narayanan, D., Dave, R., Olsen, K. P., Popping, G., & Watson, D. (2022). Investigating the [C II]-to-H I Conversion Factor and the H I Gas Budget of Galaxies at z approximate to 6 with Hydrodynamic Simulations. Astrophysical Journal Letters, 939(1), [L1]. https://doi.org/10.3847/2041-8213/ac982c

Vancouver

Vizgan D, Heintz KE, Greve TR, Narayanan D, Dave R, Olsen KP et al. Investigating the [C II]-to-H I Conversion Factor and the H I Gas Budget of Galaxies at z approximate to 6 with Hydrodynamic Simulations. Astrophysical Journal Letters. 2022 Nov 1;939(1). L1. https://doi.org/10.3847/2041-8213/ac982c

Author

Vizgan, David ; Heintz, Kasper E. ; Greve, Thomas R. ; Narayanan, Desika ; Dave, Romeel ; Olsen, Karen P. ; Popping, Gergo ; Watson, Darach. / Investigating the [C II]-to-H I Conversion Factor and the H I Gas Budget of Galaxies at z approximate to 6 with Hydrodynamic Simulations. In: Astrophysical Journal Letters. 2022 ; Vol. 939, No. 1.

Bibtex

@article{c7849120dcf44e0a8d0dc36e7744b391,
title = "Investigating the [C II]-to-H I Conversion Factor and the H I Gas Budget of Galaxies at z approximate to 6 with Hydrodynamic Simulations",
abstract = "One of the most fundamental baryonic matter components of galaxies is the neutral atomic hydrogen (H I). At low redshifts, this component can be traced directly through the 21 cm transition, but to infer the H I gas content of the most distant galaxies, a viable tracer is needed. We here investigate the fidelity of the fine-structure transition of the (P-2(3/2) - P-2(1/3)) transition of singly ionized carbon C II at 158 mu m as a proxy for H I in a set simulated galaxies at z approximate to 6, following the work by Heintz et al. We select 11,125 star-forming galaxies from the SIMBA simulations, with far-infrared line emissions postprocessed and modeled within the SIGAME framework. We find a strong connection between C II and H I, with the relation between this C I relation (beta([C II])) being anticorrelated with the gas-phase metallicity of the simulated galaxies. We further use these simulations to make predictions for the total baryonic matter content of galaxies at z approximate to 6, and specifically the H I gas mass fraction. We find mean values of M-H I/M-* = 1.4 and M-H I/ M-bar,M-tot = 0.45. These results provide strong evidence for H I being the dominant baryonic matter component by mass in galaxies at z approximate to 6.",
keywords = "NEUTRAL ATOMIC PHASES, MOLECULAR GAS, PHOTODISSOCIATION REGIONS, INTERSTELLAR-MEDIUM, DWARF GALAXIES, STAR-FORMATION, HIGH-REDSHIFT, LINE SURVEY, EMISSION, HYDROGEN",
author = "David Vizgan and Heintz, {Kasper E.} and Greve, {Thomas R.} and Desika Narayanan and Romeel Dave and Olsen, {Karen P.} and Gergo Popping and Darach Watson",
year = "2022",
month = nov,
day = "1",
doi = "10.3847/2041-8213/ac982c",
language = "English",
volume = "939",
journal = "The Astrophysical Journal Letters",
issn = "2041-8205",
publisher = "IOP Publishing",
number = "1",

}

RIS

TY - JOUR

T1 - Investigating the [C II]-to-H I Conversion Factor and the H I Gas Budget of Galaxies at z approximate to 6 with Hydrodynamic Simulations

AU - Vizgan, David

AU - Heintz, Kasper E.

AU - Greve, Thomas R.

AU - Narayanan, Desika

AU - Dave, Romeel

AU - Olsen, Karen P.

AU - Popping, Gergo

AU - Watson, Darach

PY - 2022/11/1

Y1 - 2022/11/1

N2 - One of the most fundamental baryonic matter components of galaxies is the neutral atomic hydrogen (H I). At low redshifts, this component can be traced directly through the 21 cm transition, but to infer the H I gas content of the most distant galaxies, a viable tracer is needed. We here investigate the fidelity of the fine-structure transition of the (P-2(3/2) - P-2(1/3)) transition of singly ionized carbon C II at 158 mu m as a proxy for H I in a set simulated galaxies at z approximate to 6, following the work by Heintz et al. We select 11,125 star-forming galaxies from the SIMBA simulations, with far-infrared line emissions postprocessed and modeled within the SIGAME framework. We find a strong connection between C II and H I, with the relation between this C I relation (beta([C II])) being anticorrelated with the gas-phase metallicity of the simulated galaxies. We further use these simulations to make predictions for the total baryonic matter content of galaxies at z approximate to 6, and specifically the H I gas mass fraction. We find mean values of M-H I/M-* = 1.4 and M-H I/ M-bar,M-tot = 0.45. These results provide strong evidence for H I being the dominant baryonic matter component by mass in galaxies at z approximate to 6.

AB - One of the most fundamental baryonic matter components of galaxies is the neutral atomic hydrogen (H I). At low redshifts, this component can be traced directly through the 21 cm transition, but to infer the H I gas content of the most distant galaxies, a viable tracer is needed. We here investigate the fidelity of the fine-structure transition of the (P-2(3/2) - P-2(1/3)) transition of singly ionized carbon C II at 158 mu m as a proxy for H I in a set simulated galaxies at z approximate to 6, following the work by Heintz et al. We select 11,125 star-forming galaxies from the SIMBA simulations, with far-infrared line emissions postprocessed and modeled within the SIGAME framework. We find a strong connection between C II and H I, with the relation between this C I relation (beta([C II])) being anticorrelated with the gas-phase metallicity of the simulated galaxies. We further use these simulations to make predictions for the total baryonic matter content of galaxies at z approximate to 6, and specifically the H I gas mass fraction. We find mean values of M-H I/M-* = 1.4 and M-H I/ M-bar,M-tot = 0.45. These results provide strong evidence for H I being the dominant baryonic matter component by mass in galaxies at z approximate to 6.

KW - NEUTRAL ATOMIC PHASES

KW - MOLECULAR GAS

KW - PHOTODISSOCIATION REGIONS

KW - INTERSTELLAR-MEDIUM

KW - DWARF GALAXIES

KW - STAR-FORMATION

KW - HIGH-REDSHIFT

KW - LINE SURVEY

KW - EMISSION

KW - HYDROGEN

U2 - 10.3847/2041-8213/ac982c

DO - 10.3847/2041-8213/ac982c

M3 - Journal article

VL - 939

JO - The Astrophysical Journal Letters

JF - The Astrophysical Journal Letters

SN - 2041-8205

IS - 1

M1 - L1

ER -

ID: 325017637