The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
The Equilibrium State of Molecular Regions in the Outer Galaxy
Open accessAbstract
A summary of global properties and an evaluation of the equilibrium state of molecular regions in the outer Galaxy are presented from the decomposition of the FCRAO Outer Galaxy Survey and targeted 12 CO and 13 CO observations of four giant molecular cloud complexes. The ensemble of identified objects includes both small, isolated clouds and clumps within larger cloud complexes. The 12 CO luminosity function and size distribution of a subsample of objects with well-defined distances are determined such that Δ N /Δ L CO = L and Δ N /Δ r e = r . 12 CO velocity dispersions show little variation with cloud sizes for radii less than 10 pc. It is demonstrated that the internal motions of regions with M CO = X CO L CO > 10 4 M ☉ are bound by self-gravity, yet the constituent clumps of cloud complexes and isolated molecular clouds with M CO < 10 3 M ☉ are not in self-gravitational equilibrium. The required external pressures to maintain the equilibrium of this population are (1-2) × 10 4 cm -3 K.
Overview
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.
Integrity signals
Registry
Cites
Statistics
Verification
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.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Galactic center molecular clouds. II - Distribution and kinematics
Bally, J., Stark, A. A., Wilson, R. W., & Henkel, C. (1988) · The Astrophysical Journal · doi:10.1086/165891 · Cited by 272 · cited 1×
“There are massive giant molecular clouds near the Galactic Center with large mean densities (Bally et al. 1988), highly excited molecular gas associated with ionization fronts and supernova remnants (Elmegreen & Lada 1977), quiescent clouds and globules (Clemens & Barvainis 1988), and diffuse, high…”
Background
Cited by
Star Formation in the Milky Way and Nearby Galaxies
Kennicutt, R. C., & Evans, N. J. (2012) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081811-125610 · Cited by 2,902
“From surveys of emission from CO J = 1 → 0 in the outer galaxy, where confusion is less problematic, Heyer et al. (2001) found a size distribution of clouds, dN/dr ∝ r−3.2±0.1, with no sign of a break from the power-law form from 3 to 60 pc.”
BackgroundInfluentialRE-EXAMINING LARSON'S SCALING RELATIONSHIPS IN GALACTIC MOLECULAR CLOUDS
Heyer, M., Krawczyk, C., Duval, J., & Jackson, J. M. (2009) · The Astrophysical Journal · doi:10.1088/0004-637x/699/2/1092 · Cited by 658
Self-citationBias‐free Measurement of Giant Molecular Cloud Properties
Rosolowsky, E., & Leroy, A. (2006) · Publications of the Astronomical Society of the Pacific · doi:10.1086/502982 · Cited by 334
Metadata
- Authors
- Heyer, M. H., Carpenter, J. M., & Snell, R. L.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2001-04-20
- Volume
- 551
- Issue
- 2
- Pages
- 852-866
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2080666063
- Cited by
- 315
- References
- 1
- FWCI
- 5.91
- Type
- journal article
- Language
- en
- Open access
- bronze
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: The Equilibrium State of Molecular Regions in the Outer Galaxy. https://app.cochat.ai/papers/10.1086/320218
- The paper
- Heyer, M. H., Carpenter, J. M., & Snell, R. L. (2001). The Equilibrium State of Molecular Regions in the Outer Galaxy. The Astrophysical Journal. https://doi.org/10.1086/320218
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
