{
  "abstract": "We investigate the azimuthal dependence of H i and O vi -bearing gas in the circumgalactic medium (CGM) of 113 isolated galaxies in the redshift range 0.12 < z < 0.75, including 91 new measurements from the MUSE Quasar-fields Blind Emitters Survey (MUSEQuBES). Of these, measurements for 46 galaxies lie within the virial radius ( R vir ), including 36 non-face-on systems for which azimuthal angle ( ϕ ) measurements are robust. The H i covering fraction ( κ H I ) within R vir of low-mass (7 < log 10 ( M ⋆ / M ⊙ ) ≤ 9) galaxies, for a threshold column density of log 10 ( N ( H I ) / cm − 2 ) = 14.5 , exhibits an enhancement along both the disk plane ( ϕ ≲ 20°) and in the polar direction ( ϕ ≳ 70°). In contrast, such a bimodal distribution is not observed for higher mass galaxies (9 < log 10 ( M ⋆ / M ⊙ ) ≤ 11.3). Similarly, the O vi covering fraction ( κ O VI ), for a threshold of log 10 ( N ( O VI ) / cm − 2 ) = 14.0 , shows a tentative enhancement along both the projected major and minor axes for low-mass galaxies. In contrast, O vi -bearing gas around higher-mass galaxies appears more uniformly distributed, with no significant azimuthal dependence. Finally, using the halo circular-velocity-normalized pixel-velocity two-point correlation function (TPCF), we find that O vi absorbers are kinematically narrower along the disk plane compared to the polar directions of the host galaxies with similar stellar mass distributions. The observed isotropic distribution of O vi in high-mass halos suggests that its spatial distribution is governed by global halo properties; however, the O vi kinematics retain memory of the site of origin.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2602.17593",
  "author_total": 12,
  "authors": [
    {
      "name": "Sayak Dutta"
    },
    {
      "name": "Sowgat Muzahid"
    },
    {
      "name": "Joop Schaye"
    },
    {
      "name": "Sean Johnson"
    },
    {
      "name": "Edmund Christian Herenz"
    },
    {
      "name": "Ismael Pessa"
    },
    {
      "name": "Ramona Augustin"
    },
    {
      "name": "Nicolas Bouché"
    },
    {
      "name": "Joey Braspenning"
    },
    {
      "name": "Sebastiano Cantalupo"
    },
    {
      "name": "Sourav Das"
    },
    {
      "name": "Martin Wendt"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/655qpmr7g9z8f.bib",
  "cited_by": 3,
  "doi": "10.3847/1538-4357/ae9544",
  "fulltext_url": null,
  "id": "655qpmr7g9z8f",
  "issns": [
    "0004-637X",
    "1538-4357"
  ],
  "landing_url": "https://hal.science/hal-05855517v1",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.astr"
    ],
    [
      "hal",
      "2.phys.astr.co"
    ],
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7130737051",
  "pdf_url": "https://iopscience.iop.org/article/10.3847/1538-4357/ae9544/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-27",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/655qpmr7g9z8f.ris",
  "sources": [
    {
      "first_seen": "2026-11-07T12:20:26Z",
      "native_id": "hal-05855517",
      "source": "hal",
      "url": "https://hal.science/hal-05855517v1"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "hal:2.phys.astr.co",
      "subfield": "cosmology"
    },
    {
      "field": "physics",
      "origin": "hal:0.phys",
      "subfield": "general"
    }
  ],
  "title": "MUSEQuBES: Probing Anisotropies in Gas and Metal Distributions in the Circumgalactic Medium",
  "title_text": "MUSEQuBES: Probing Anisotropies in Gas and Metal Distributions in the Circumgalactic Medium",
  "type": "peer-reviewed",
  "updated_at": "2026-11-08T12:20:49Z",
  "url": "https://research.draconitic.com/paper/655qpmr7g9z8f",
  "venue": "The Astrophysical Journal",
  "versions": []
}