The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.
2MASS Extended Source Catalog: Overview and Algorithms
Open accessAbstract
The Two Micron All Sky Survey (2MASS) will observe over 1,000,000 galaxies and extended Galactic sources covering the entire sky at wavelengths between 1 and 2 μm. Most of these galaxies will be newly cataloged objects. The survey catalog will have both high completeness and reliability down to J = 15.0 mag and K s = 13.5 mag, equivalent to 1.6 and 2.9 mJy, respectively. Galaxies as small as 10'' are resolved, and those as large as ∼2 5 are fully imaged. 2MASS will discover galaxies never seen before in the "zone of avoidance" caused by the obscuring effects of Galactic dust and gas, limited only by the extreme number of stars at very low Galactic latitude, especially toward the Galactic center. This paper describes the basic algorithms used to detect and characterize extended sources in the 2MASS database and catalog. Critical procedures include tracking the point-spread function, image background removal, artifact removal, photometry and basic parameterization, star-galaxy discrimination, and object classification using a decision tree technique. We introduce and provide examples of the types of extended sources that 2MASS detects across the sky, including galaxies, Galactic nebulae and resolved stellar objects, multiple stars and clusters, and, finally, artifacts arising from bright stars and transient events. A future paper will provide a full statistical analysis and verification of the completeness, reliability, and integrity of the first release catalog, as well as some of the basic scientific results of the catalog, including galaxy colors, number counts, and redshift distribution.
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
Classification and Regression Trees.
Ryzin, J. V., Breiman, L., Friedman, J. H., Olshen, R. A., & Stone, C. J. (1986) · Journal of the American Statistical Association · doi:10.2307/2288003 · Cited by 20,825
SExtractor: Software for source extraction
Bertin, E., & Arnouts, S. (1996) · Astronomy and Astrophysics Supplement Series · doi:10.1051/aas:1996164 · Cited by 10,866
Spectral evolution of stellar populations using isochrone synthesis
Bruzual A., G., & Charlot, S. (1993) · The Astrophysical Journal · doi:10.1086/172385 · Cited by 1,808
Photometry of a complete sample of faint galaxies
Kron, R. G. (1980) · The Astrophysical Journal Supplement Series · doi:10.1086/190669 · Cited by 1,045
The universe at faint magnitudes. I - Models for the galaxy and the predicted star counts
Bahcall, J. N., & Soneira, R. M. (1980) · The Astrophysical Journal Supplement Series · doi:10.1086/190685 · Cited by 861
On the growth-curve method for calibrating stellar photometry with CCDs
Stetson, P. B. (1990) · Publications of the Astronomical Society of the Pacific · doi:10.1086/132719 · Cited by 358
(1997) · Astrophysics and Space Science Library · doi:10.1007/978-94-011-5784-1 · Cited by 321
Infrared Astronomy with Arrays: The Next Generation
(1994) · Astrophysics and Space Science Library · doi:10.1007/978-94-011-1070-9 · Cited by 291
Statistical Challenges in Modern Astronomy
(1992) · Springer eBooks · doi:10.1007/978-1-4613-9290-3 · Cited by 255
Automated star/galaxy discrimination with neural networks
Odewahn, S. C., Stockwell, E. B., Pennington, R. L., Humphreys, R. M., & Zumach, W. A. (1992) · The Astronomical Journal · doi:10.1086/116063 · Cited by 196
Cited by
The Two Micron All Sky Survey (2MASS)
Skrutskie, M. F., Cutri, R. M., Stiening, R., Weinberg, M. D., Schneider, S., Carpenter, J. M., Beichman, C., Capps, R., Chester, T., Elias, J., et al. (2006) · The Astronomical Journal · doi:10.1086/498708 · Cited by 12,019
Self-citationBeutler, F., Blake, C., Colless, M., Jones, D. H., Staveley-Smith, L., Campbell, L., Parker, Q., Saunders, W., & Watson, F. (2011) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2011.19250.x · Cited by 2,590
“The galaxies used in this analysis were selected to K 6 12.9 from the 2MASS Extended Source Catalog (2MASS XSC; Jarrett et al. 2000) and combined with redshift data from the 6dF Galaxy Survey (6dFGS; Jones et al. 2009).”
MethodInfluentialConroy, C., Gunn, J. E., & White, M. (2009) · The Astrophysical Journal · doi:10.1088/0004-637x/699/1/486 · Cited by 1,891
K -Corrections and Filter Transformations in the Ultraviolet, Optical, and Near-Infrared
Blanton, M. R., & Roweis, S. (2007) · The Astronomical Journal · doi:10.1086/510127 · Cited by 1,579
New Neighbors from 2MASS: Activity and Kinematics at the Bottom of the Main Sequence
Gizis, J. E., Monet, D. G., Reid, I. N., Kirkpatrick, J. D., Liebert, J., & Williams, R. J. (2000) · The Astronomical Journal · doi:10.1086/301456 · Cited by 503
Metadata
- Authors
- Jarrett, T. H., Chester, T., Cutri, R., Schneider, S., Skrutskie, M., & Huchra, J. P.
- Venue
- The Astronomical Journal
- Publisher
- American Astronomical Society
- Published
- 2000-05
- Volume
- 119
- Issue
- 5
- Pages
- 2498-2531
- ISSN
- 0004-6256 (ISSN-L)
- OpenAlex
- W2036902403
- Cited by
- 992
- References
- 18
- FWCI
- 19.51
- 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: 2MASS Extended Source Catalog: Overview and Algorithms. https://app.cochat.ai/papers/10.1086/301330
- The paper
- Jarrett, T. H., Chester, T., Cutri, R., Schneider, S., Skrutskie, M., & Huchra, J. P. (2000). 2MASS Extended Source Catalog: Overview and Algorithms. The Astronomical Journal. https://doi.org/10.1086/301330
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.
