CoChat
Sign Up
Cited by 70Astrophysical Phenomena and ObservationsAstrophysics and Star Formation StudiesGalaxies: Formation, Evolution, Phenomena

ATOMIC HYDROGEN IN A GALACTIC CENTER OUTFLOW

Open access
McClure-Griffiths, N. M., Green, J. A., Hill, A. S., Lockman, F. J., Dickey, J. M., Gaensler, B. M., Green, A. J.·2013·The Astrophysical Journal
DOI 10.1088/2041-8205/770/1/l4
Open this paper in CoChat — free accountOpen PDF

Abstract

We describe a population of small, high-velocity, atomic hydrogen clouds, loops, and filaments found above and below the disk near the Galactic center. The objects have a mean radius of 15 pc, velocity widths of ∼14 km s −1 , and are observed at | z | heights up to 700 pc. The velocity distribution of the clouds shows no signature of Galactic rotation. We propose a scenario where the clouds are associated with an outflow from a central star-forming region at the Galactic center. We discuss the clouds as entrained material traveling at ∼200 km s −1 in a Galactic wind.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1088/2041-8205/770/1/l4

Cites

20 of 20 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • These clouds have a typical size of 5-30 pc, a mass range of about 30-10^3 M⊙ (total mass about 4 × 10^4 M⊙), and an estimated density of about 1-10 cm^-3.

    “The clouds have a typical size in the range of 5 -30 pc, a mass range of ∼ 30 -10 3 M ⊙ (total mass ∼ 4 × 10 4 M ⊙ ), and an estimated density of about ∼ 1 -10 cm -3 .”

    From The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way (2024) · cites this paper as McClure-Griffiths et al. 2013

    Table 2 (p. unavailable) gives a median cloud radius of 15 pc and median mass of 270 M⊙, broadly consistent with the claimed typical values, though its full mass range is 5–2,100 M⊙ rather than 30–1,000 M⊙. The Discussion and Conclusions gives a total H I mass of about 4 × 10⁴ M⊙. The cloud-properties passage (p. unavailable) estimates an average density of about 1 cm⁻³, but does not give the claimed 1–10 cm⁻³ range. (LLM, conf=0.85)

    Experimental — accuracy not yet measured

  • The GSR velocity for the clouds is consistent with an outflow velocity of about 200 km s^-1 and a full wind opening angle of about 135°.

    “The Galactic Standard of Rest (GSR) velocity for the clouds was found to be consistent with an outflow velocity of ∼ 200 km s -1 and a full wind opening angle of ∼ 135 ◦ .”

    From The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way (2024) · cites this paper as McClure-Griffiths et al. 2013

    Section 2.2 (page unavailable) says the observed clouds are consistent with a conical outflow of about 200 km s^-1 and that the best-matched cone opening angle is 3π/4 radians (135°). However, it analyzes cloud velocities in the local standard of rest (LSR), not the Galactic standard of rest (GSR) specified in the claim. (LLM, conf=0.87)

    Experimental — accuracy not yet measured

  • McClure-Griffiths et al. (2013) detected about 86 H i clouds with an LSR velocity ranging from about -200 to +200 km s^-1 within the central 5° of the Galactic Center.

    “McClure-Griffiths et al. (2013) detected about 86 H i clouds with an LSR (local standard of rest) velocity ranging from ∼ -200 to + 200 km s -1 within the central 5 ◦ of the GC.”

    From The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way (2024) · cites this paper as McClure-Griffiths et al. 2013

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Related

Authors
McClure-Griffiths, N. M., Green, J. A., Hill, A. S., Lockman, F. J., Dickey, J. M., Gaensler, B. M., & Green, A. J.
Affiliations
  • Commonwealth Scientific and Industrial Research Organisation (AU)
  • National Radio Astronomy Observatory (US)
  • University of Tasmania (AU)
  • The University of Sydney (AU)
Corresponding author
McClure-Griffiths, N. M.
ORCID
Gaensler, B. M.
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2013-05-22
Volume
770
Issue
1
Pages
L4
ISSN
  • 2041-8205 (ISSN-L)
  • 2041-8213
DOI
10.1088/2041-8205/770/1/l4
OpenAlex
W2063234887
Cited by
70
References
20
Citations by year
2026: 4 · 2025: 5 · 2024: 6 · 2023: 6 · 2022: 5 · 2021: 8 · 2020: 11 · 2019: 4 · 2018: 5 · 2017: 5 · 2016: 4 · 2015: 4 · 2014: 2 · 2013: 1
FWCI
1.98
Type
journal article
Language
en
Open access
Licence
Locations
  • The Astrophysical Journal Letters (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • eCite Digital Repository (University of Tasmania) (submittedVersion)
  • ANU Open Research (Australian National University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysical Phenomena and Observations
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
Keywords
atomic hydrogen, high-velocity clouds, galactic winds, star-forming regions, velocity distribution, interstellar medium, Galactic disk

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review