The DOI matches its Crossref record.
Observational studies of pre-main-sequence evolution
Abstract
Optical scanner data from 4270 to 6710 A with a resolution of 7 A were obtained for some 500 H-alpha stars. The data were used to obtain spectral types, reddening coefficients, and emission line strengths; in addition, they are combined with IR broadband measurements out to 3.5 microns to provide bolometric luminosities and effective temperatures. H-R diagrams are presented for the Taurus-Auriga complex, Orion, NGC 2264, NGC 7000/IC 5070, and the Rho Ophiuci association. Some general conclusions are presented.
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
A [ITAL]Hipparcos[/ITAL] Census of the Nearby OB Associations
de Zeeuw, P. T., Hoogerwerf, R., de Bruijne, J. H. J., Brown, A. G. A., & Blaauw, A. (1999) · The Astronomical Journal · doi:10.1086/300682 · Cited by 1,317
Protoplanetary disk structures in Ophiuchus
Andrews, S. M., Wilner, D. J., Hughes, A. M., Qi, C., & Dullemond, C. P. (2009) · The Astrophysical Journal · doi:10.1088/0004-637x/700/2/1502 · Cited by 709
Exploring the Full Stellar Population of the Upper Scorpius OB Association
Preibisch, T., Brown, A. G. A., Bridges, T., Guenther, E., & Zinnecker, H. (2002) · The Astronomical Journal · doi:10.1086/341174 · Cited by 349
Mannings, V., & Sargent, A. I. (1997) · The Astrophysical Journal · doi:10.1086/304897 · Cited by 332
An Assessment of Dynamical Mass Constraints on Pre–Main‐Sequence Evolutionary Tracks
Hillenbrand, L. A., & White, R. J. (2004) · The Astrophysical Journal · doi:10.1086/382021 · Cited by 319
Metadata
- Authors
- Cohen, M., & Kuhi, L. V.
- Venue
- The Astrophysical Journal Supplement Series
- Publisher
- American Astronomical Society
- Published
- 1979-12
- Volume
- 41
- Pages
- 743
- ISSN
- 0067-0049 (ISSN-L)
- 1538-4365
- OpenAlex
- W2021272563
- Cited by
- 800
- 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: Observational studies of pre-main-sequence evolution. https://app.cochat.ai/papers/10.1086/190641
- The paper
- Cohen, M., & Kuhi, L. V. (1979). Observational studies of pre-main-sequence evolution. The Astrophysical Journal Supplement Series. https://doi.org/10.1086/190641
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.
