The DOI matches its Crossref record.
The distribution of Lyman-alpha absorption lines in the spectra of six QSOs - Evidence for an intergalactic origin
Abstract
The large Lyman-alpha samples in five QSOs with zem between 2.2 and 3.3 are used to test whether the absorbing gas is cosmologically distributed or ejected from the QSOs. It is shown that there is no significant variation in line density with redshift, nor in the rest equivalent width spectrum among the QSOs. In addition, the mean number density of lines in each object is found to be the same, that is, 60 lines per delta z=1 with W greater than or equal to 0.32 A.
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
Cited by
Tumlinson, J., Peeples, M. S., & Werk, J. K. (2017) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-091916-055240 · Cited by 1,147
The Lyman-Alpha Forest in the Cold Dark Matter Model
Hernquist, Katz, Weinberg, & Miralda-Escudé, J. (1996) · The Astrophysical Journal · doi:10.1086/309899 · Cited by 438
Metadata
- Authors
- Sargent, W. L. W., Young, P. J., Boksenberg, A., & Tytler, D.
- Venue
- The Astrophysical Journal Supplement Series
- Publisher
- American Astronomical Society
- Published
- 1980-01
- Volume
- 42
- Pages
- 41
- ISSN
- 0067-0049 (ISSN-L)
- 1538-4365
- OpenAlex
- W1999911662
- Cited by
- 331
- References
- 0
- Type
- conference abstract
- Language
- en
- Open access
- closed
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 distribution of Lyman-alpha absorption lines in the spectra of six QSOs - Evidence for an intergalactic origin. https://app.cochat.ai/papers/10.1086/190644
- The paper
- Sargent, W. L. W., Young, P. J., Boksenberg, A., & Tytler, D. (1980). The distribution of Lyman-alpha absorption lines in the spectra of six QSOs - Evidence for an intergalactic origin. The Astrophysical Journal Supplement Series. https://doi.org/10.1086/190644
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.
