The DOI matches its Crossref record.
X-ray and Molecular Emission from the Nearest Region of Recent Star Formation
Abstract
The isolated, young, sunlike star TW Hya and four other young stars in its vicinity are strong x-ray sources. Their similar x-ray and optical properties indicate that the stars make up a physical association that is on the order of 20 million years old and that lies between about 40 and 60 parsecs (between about 130 and 200 light years) from Earth. TW Hya itself displays circumstellar CO, HCN, CN, and HCO + emission. These molecules probably orbit the star in a solar-system–sized disk viewed more or less face-on, whereas the star is likely viewed pole-on. Being at least three times closer to Earth than any well-studied region of star formation, the TW Hya Association serves as a test-bed for the study of x-ray emission from young stars and the formation of planetary systems around sunlike stars.
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
Search for associations containing young stars (SACY): I. Sample and searching method
Torres, C. A. O., Quast, G. R., da Silva, L., de la Reza, R., Melo, C. H. F., & Sterzik, M. (2006) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20065602 · Cited by 632
Zuckerman, B., & Song, I. (2004) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.42.053102.134111 · Cited by 594
Self-citationThe SkyMapper Telescope and The Southern Sky Survey
Keller, S. C., Schmidt, B. P., Bessell, M. S., Conroy, P. G., Francis, P., Granlund, A., Kowald, E., Oates, A. P., Martin-Jones, T., Preston, T., et al. (2007) · Publications of the Astronomical Society of Australia · doi:10.1071/as07001 · Cited by 538
Post–T Tauri Stars in the Nearest OB Association
Mamajek, E. E., Meyer, M. R., & Liebert, J. (2002) · The Astronomical Journal · doi:10.1086/341952 · Cited by 310
Molecules with ALMA at Planet-forming Scales (MAPS). I. Program Overview and Highlights
Öberg, K. I., Guzmán, V. V., Walsh, C., Aikawa, Y., Bergin, E. A., Law, C. J., Loomis, R. A., Alarcón, F., Andrews, S. M., Bae, J., et al. (2021) · The Astrophysical Journal Supplement Series · doi:10.3847/1538-4365/ac1432 · Cited by 280
Metadata
- Authors
- Kastner, J. H., Zuckerman, B., Weintraub, D. A., & Forveille, T.
- Venue
- Science
- Published
- 1997-07-04
- Volume
- 277
- Issue
- 5322
- Pages
- 67-71
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2038416916
- Cited by
- 387
- References
- 0
- FWCI
- 10.86
- Type
- journal article
- 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: X-ray and Molecular Emission from the Nearest Region of Recent Star Formation. https://app.cochat.ai/papers/10.1126/science.277.5322.67
- The paper
- Kastner, J. H., Zuckerman, B., Weintraub, D. A., & Forveille, T. (1997). X-ray and Molecular Emission from the Nearest Region of Recent Star Formation. Science. https://doi.org/10.1126/science.277.5322.67
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.
