H2 molecular gas absorption-selected systems trace CO molecular gas-rich galaxy overdensities

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Standard

H2 molecular gas absorption-selected systems trace CO molecular gas-rich galaxy overdensities. / Klitsch, Anne; Péroux, Céline; Zwaan, Martin A.; De Cia, Annalisa; Ledoux, Cédric; Lopez, Sebastian.

In: Monthly Notices of the Royal Astronomical Society, Vol. 506, No. 1, 01.09.2021, p. 514-522.

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

Harvard

Klitsch, A, Péroux, C, Zwaan, MA, De Cia, A, Ledoux, C & Lopez, S 2021, 'H2 molecular gas absorption-selected systems trace CO molecular gas-rich galaxy overdensities', Monthly Notices of the Royal Astronomical Society, vol. 506, no. 1, pp. 514-522. https://doi.org/10.1093/mnras/stab1668

APA

Klitsch, A., Péroux, C., Zwaan, M. A., De Cia, A., Ledoux, C., & Lopez, S. (2021). H2 molecular gas absorption-selected systems trace CO molecular gas-rich galaxy overdensities. Monthly Notices of the Royal Astronomical Society, 506(1), 514-522. https://doi.org/10.1093/mnras/stab1668

Vancouver

Klitsch A, Péroux C, Zwaan MA, De Cia A, Ledoux C, Lopez S. H2 molecular gas absorption-selected systems trace CO molecular gas-rich galaxy overdensities. Monthly Notices of the Royal Astronomical Society. 2021 Sep 1;506(1):514-522. https://doi.org/10.1093/mnras/stab1668

Author

Klitsch, Anne ; Péroux, Céline ; Zwaan, Martin A. ; De Cia, Annalisa ; Ledoux, Cédric ; Lopez, Sebastian. / H2 molecular gas absorption-selected systems trace CO molecular gas-rich galaxy overdensities. In: Monthly Notices of the Royal Astronomical Society. 2021 ; Vol. 506, No. 1. pp. 514-522.

Bibtex

@article{f2356129e118474cae43518f8cf86ea1,
title = "H2 molecular gas absorption-selected systems trace CO molecular gas-rich galaxy overdensities",
abstract = "Absorption-selected galaxies offer an effective way to study low-mass galaxies at high redshift. However, the physical properties of the underlying galaxy population remain uncertain. In particular, the multiphase circumgalactic medium is thought to hold key information on gas flows into and out of galaxies that are vital for galaxy evolution models. Here, we present ALMA observations of CO molecular gas in host galaxies of H2-bearing absorbers. In our sample of six absorbers, we detect molecular gas-rich galaxies in five absorber fields, although we did not target high-metallicity (>50 per cent solar) systems for which previous studies reported the highest detection rate. Surprisingly, we find that the majority of the absorbers are associated with multiple galaxies rather than single haloes. Together with the large impact parameters, these results suggest that the H2-bearing gas seen in absorption is not part of an extended disc, but resides in dense gas pockets in the circumgalactic and intragroup medium....",
author = "Anne Klitsch and C{\'e}line P{\'e}roux and Zwaan, {Martin A.} and {De Cia}, Annalisa and C{\'e}dric Ledoux and Sebastian Lopez",
year = "2021",
month = sep,
day = "1",
doi = "10.1093/mnras/stab1668",
language = "English",
volume = "506",
pages = "514--522",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "1",

}

RIS

TY - JOUR

T1 - H2 molecular gas absorption-selected systems trace CO molecular gas-rich galaxy overdensities

AU - Klitsch, Anne

AU - Péroux, Céline

AU - Zwaan, Martin A.

AU - De Cia, Annalisa

AU - Ledoux, Cédric

AU - Lopez, Sebastian

PY - 2021/9/1

Y1 - 2021/9/1

N2 - Absorption-selected galaxies offer an effective way to study low-mass galaxies at high redshift. However, the physical properties of the underlying galaxy population remain uncertain. In particular, the multiphase circumgalactic medium is thought to hold key information on gas flows into and out of galaxies that are vital for galaxy evolution models. Here, we present ALMA observations of CO molecular gas in host galaxies of H2-bearing absorbers. In our sample of six absorbers, we detect molecular gas-rich galaxies in five absorber fields, although we did not target high-metallicity (>50 per cent solar) systems for which previous studies reported the highest detection rate. Surprisingly, we find that the majority of the absorbers are associated with multiple galaxies rather than single haloes. Together with the large impact parameters, these results suggest that the H2-bearing gas seen in absorption is not part of an extended disc, but resides in dense gas pockets in the circumgalactic and intragroup medium....

AB - Absorption-selected galaxies offer an effective way to study low-mass galaxies at high redshift. However, the physical properties of the underlying galaxy population remain uncertain. In particular, the multiphase circumgalactic medium is thought to hold key information on gas flows into and out of galaxies that are vital for galaxy evolution models. Here, we present ALMA observations of CO molecular gas in host galaxies of H2-bearing absorbers. In our sample of six absorbers, we detect molecular gas-rich galaxies in five absorber fields, although we did not target high-metallicity (>50 per cent solar) systems for which previous studies reported the highest detection rate. Surprisingly, we find that the majority of the absorbers are associated with multiple galaxies rather than single haloes. Together with the large impact parameters, these results suggest that the H2-bearing gas seen in absorption is not part of an extended disc, but resides in dense gas pockets in the circumgalactic and intragroup medium....

U2 - 10.1093/mnras/stab1668

DO - 10.1093/mnras/stab1668

M3 - Journal article

VL - 506

SP - 514

EP - 522

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 1

ER -

ID: 280890300