The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.
WHAT DETERMINES THE DENSITY STRUCTURE OF MOLECULAR CLOUDS? A CASE STUDY OF ORION B WITH HERSCHEL
Open accessAbstract
A key parameter to the description of all star formation processes is the density structure of the gas. In this Letter, we make use of probability distribution functions (PDFs) of Herschel column density maps of Orion B, Aquila, and Polaris, obtained with the Herschel Gould Belt survey (HGBS). We aim to understand which physical processes influence the PDF shape, and with which signatures. The PDFs of Orion B (Aquila) show a lognormal distribution for low column densities until A V ∼ 3 (6), and a power-law tail for high column densities, consistent with a ρ∝ r −2 profile for the equivalent spherical density distribution. The PDF of Orion B is broadened by external compression due to the nearby OB stellar aggregates. The PDF of a quiescent subregion of the non-star-forming Polaris cloud is nearly lognormal, indicating that supersonic turbulence governs the density distribution. But we also observe a deviation from the lognormal shape at A V > 1 for a subregion in Polaris that includes a prominent filament. We conclude that (1) the point where the PDF deviates from the lognormal form does not trace a universal A V -threshold for star formation, (2) statistical density fluctuations, intermittency, and magnetic fields can cause excess from the lognormal PDF at an early cloud formation stage, (3) core formation and/or global collapse of filaments and a non-isothermal gas distribution lead to a power-law tail, and (4) external compression broadens the column density PDF, consistent with numerical simulations.
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
Herschel Space Observatory: An ESA facility for far-infrared and submillimetre astronomy
Pilbratt, G. L., Riedinger, J. R., Passvogel, T., Crone, G., Doyle, D., Gageur, U., Heras, A. M., Jewell, C., Metcalfe, L., Ott, S., et al. (2010) · Astronomy and Astrophysics · doi:10.1051/0004-6361/201014759 · Cited by 3,180
A survey of interstellar H I from L-alpha absorption measurements. II
Bohlin, R. C., Savage, B. D., & Drake, J. F. (1978) · The Astrophysical Journal · doi:10.1086/156357 · Cited by 2,540
The Photodetector Array Camera and Spectrometer (PACS) on the Herschel Space Observatory
Poglitsch, A., Waelkens, C., Geis, N., Feuchtgruber, H., Vandenbussche, B., Rodriguez, L., Krause, O., Renotte, E., van Hoof, C., Saraceno, P., et al. (2010) · Astronomy and Astrophysics · doi:10.1051/0004-6361/201014535 · Cited by 2,215
Self-citationThe Herschel-SPIRE instrument and its in-flight performance
Griffin, M. J., Abergel, A., Abreu, A., Ade, P. A. R., André, P., Augueres, J.-L., Babbedge, T., Bae, Y., Baillie, T., Baluteau, J.-P., et al. (2010) · Astronomy and Astrophysics · doi:10.1051/0004-6361/201014519 · Cited by 2,198
Self-citationAndré, P., Men'shchikov, A., Bontemps, S., Könyves, V., Motte, F., Schneider, N., Didelon, P., Minier, V., Saraceno, P., Ward-Thompson, D., et al. (2010) · Astronomy and Astrophysics · doi:10.1051/0004-6361/201014666 · Cited by 1,464
Self-citationFederrath, C., Roman-Duval, J., Klessen, R. S., Schmidt, W., & Mac Low, M.-M. (2010) · Astronomy and Astrophysics · doi:10.1051/0004-6361/200912437 · Cited by 846
Self-citationClouds, filaments, and protostars: The Herschel Hi-GAL Milky Way
Molinari, S., Swinyard, B., Bally, J., Barlow, M., Bernard, J.-P., Martin, P., Moore, T., Noriega-Crespo, A., Plume, R., Testi, L., et al. (2010) · Astronomy and Astrophysics · doi:10.1051/0004-6361/201014659 · Cited by 796
Self-citationProbing the evolution of molecular cloud structure: From quiescence to birth
Kainulainen, J., Beuther, H., Henning, T., & Plume, R. (2009) · Astronomy & Astrophysics · doi:10.1051/0004-6361/200913605 · Cited by 440
ON THE STAR FORMATION EFFICIENCY OF TURBULENT MAGNETIZED CLOUDS
Federrath, C., & Klessen, R. S. (2013) · The Astrophysical Journal · doi:10.1088/0004-637x/763/1/51 · Cited by 403
Self-citationCluster-formation in the Rosette molecular cloud at the junctions of filaments
Schneider, N., Csengeri, T., Hennemann, M., Motte, F., Didelon, P., Federrath, C., Bontemps, S., Di Francesco, J., Arzoumanian, D., Minier, V., et al. (2012) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201118566 · Cited by 353
Self-citation
Cited by
Dalcanton, J. J., Fouesneau, M., Hogg, D. W., Lang, D., Leroy, A. K., Gordon, K. D., Sandstrom, K., Weisz, D. R., Williams, B. F., Bell, E. F., et al. (2015) · The Astrophysical Journal · doi:10.1088/0004-637x/814/1/3 · Cited by 97
Spilker, A., Kainulainen, J., & Orkisz, J. (2021) · Astronomy & Astrophysics · doi:10.1051/0004-6361/202040021 · Cited by 29
Metadata
- Authors
- Schneider, N., André, P., Könyves, V., Bontemps, S., Motte, F., Federrath, C., Ward-Thompson, D., Arzoumanian, D., Benedettini, M., Bressert, E., Didelon, P., Di Francesco, J., Griffin, M., Hennemann, M., Hill, T., Palmeirim, P., Pezzuto, S., Peretto, N., Roy, A., Rygl, K. L. J., Spinoglio, L., & White, G.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2013-03-13
- Volume
- 766
- Issue
- 2
- Pages
- L17
- ISSN
- 2041-8205 (ISSN-L)
- 2041-8213
- OpenAlex
- W2163780962
- Cited by
- 266
- References
- 28
- FWCI
- 19.33
- 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: WHAT DETERMINES THE DENSITY STRUCTURE OF MOLECULAR CLOUDS? A CASE STUDY OF ORION B WITH HERSCHEL. https://app.cochat.ai/papers/10.1088/2041-8205/766/2/l17
- The paper
- Schneider, N., André, P., Könyves, V., Bontemps, S., Motte, F., Federrath, C., Ward-Thompson, D., Arzoumanian, D., Benedettini, M., Bressert, E., Didelon, P., Di Francesco, J., Griffin, M., Hennemann, M., Hill, T., Palmeirim, P., Pezzuto, S., Peretto, N., Roy, A., . . . White, G. (2013). WHAT DETERMINES THE DENSITY STRUCTURE OF MOLECULAR CLOUDS? A CASE STUDY OF ORION B WITH HERSCHEL. The Astrophysical Journal. https://doi.org/10.1088/2041-8205/766/2/l17
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.
