The DOI matches its Crossref record; 67 of the 67 references it cites were found in a registry or an index.
MEETING THE COOL NEIGHBORS. X. ULTRACOOL DWARFS FROM THE 2MASS ALL-SKY DATA RELEASE
Open accessAbstract
Using data from the 2 Micron All Sky Survey All-Sky Point Source Catalogue, we have extended our census of nearby ultracool dwarfs to cover the full celestial sphere above Galactic latitude of 15°. Starting with an initial catalog of 2,139,484 sources, we have winnowed the sample to 467 candidate late-type M or L dwarfs within 20 pc of the Sun. Fifty-four of those sources already have spectroscopic observations confirming them as late-type dwarfs. We present optical spectroscopy of 376 of the remaining 413 sources, and identify 44 as ultracool dwarfs with spectroscopic distances less than 20 pc. Twenty-five of the 37 sources that lack optical data have near-infrared spectroscopy. Combining the present sample with our previous results and data from the literature, we catalog 94 L dwarf systems within 20 pc. We discuss the distribution of activity, as measured by Hα emission, in this volume-limited sample. We have coupled the present ultracool catalog with data for stars in the northern 8 pc sample and recent (incomplete) statistics for T dwarfs to provide a snapshot of the current 20 pc census as a function of spectral type.
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
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-citationThe Sloan Digital Sky Survey: Technical Summary
York, D. G., Adelman, J., Anderson, Jr., Anderson, S. F., Annis, J., Bahcall, N. A., Bakken, J. A., Barkhouser, R., Bastian, S., Berman, E., et al. (2000) · The Astronomical Journal · doi:10.1086/301513 · Cited by 10,366
Secondary standard stars for absolute spectrophotometry
Oke, J. B., & Gunn, J. E. (1983) · The Astrophysical Journal · doi:10.1086/160817 · Cited by 2,811
Kirkpatrick, J. D., Reid, I. N., Liebert, J., Cutri, R. M., Nelson, B., Beichman, C. A., Dahn, C. C., Monet, D. G., Gizis, J. E., & Skrutskie, M. F. (1999) · The Astrophysical Journal · doi:10.1086/307414 · Cited by 992
Self-citationHook, I. M., Jørgensen, I., Allington‐Smith, J. R., Davies, R. L., Metcalfe, N., Murowinski, R. G., & Crampton, D. (2004) · Publications of the Astronomical Society of the Pacific · doi:10.1086/383624 · Cited by 851
The theory of brown dwarfs and extrasolar giant planets
Burrows, A., Hubbard, W. B., Lunine, J. I., & Liebert, J. (2001) · Reviews of Modern Physics · doi:10.1103/revmodphys.73.719 · Cited by 819
Self-citationDiscovery of a cool brown dwarf
Nakajima, T., Oppenheimer, B. R., Kulkarni, S. R., Golimowski, D. A., Matthews, K., & Durrance, S. T. (1995) · Nature · doi:10.1038/378463a0 · Cited by 818
A composite CO survey of the entire Milky Way
Dame, T. M., Ungerechts, H., Cohen, R. S., de Geus, E. J., Grenier, I. A., May, J., Murphy, D. C., Nyman, L.-A., & Thaddeus, P. (1987) · The Astrophysical Journal · doi:10.1086/165766 · Cited by 673
Astrometry and Photometry for Cool Dwarfs and Brown Dwarfs
Dahn, C. C., Harris, H. C., Vrba, F. J., Guetter, H. H., Canzian, B., Henden, A. A., Levine, S. E., Luginbuhl, C. B., Monet, A. K. B., Monet, D. G., et al. (2002) · The Astronomical Journal · doi:10.1086/341646 · Cited by 624
Self-citationSouthern spectrophotometric standards, 2
Hamuy, M., Suntzeff, N. B., Heathcote, S. R., Walker, A. R., Gigoux, P., & Phillips, M. M. (1994) · Publications of the Astronomical Society of the Pacific · doi:10.1086/133417 · Cited by 621
Metadata
- Authors
- Neill Reid, I., Cruz, K. L., Kirkpatrick, J. D., Allen, P. R., Mungall, F., Liebert, J., Lowrance, P., & Sweet, A.
- Venue
- The Astronomical Journal
- Publisher
- American Astronomical Society
- Published
- 2008-08-15
- Volume
- 136
- Issue
- 3
- Pages
- 1290-1311
- ISSN
- 0004-6256 (ISSN-L)
- 1538-3881
- OpenAlex
- W2129344996
- Cited by
- 257
- References
- 67
- FWCI
- 6.88
- Type
- journal article
- Language
- en
- Open access
- green
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: MEETING THE COOL NEIGHBORS. X. ULTRACOOL DWARFS FROM THE 2MASS ALL-SKY DATA RELEASE. https://app.cochat.ai/papers/10.1088/0004-6256/136/3/1290
- The paper
- Neill Reid, I., Cruz, K. L., Kirkpatrick, J. D., Allen, P. R., Mungall, F., Liebert, J., Lowrance, P., & Sweet, A. (2008). MEETING THE COOL NEIGHBORS. X. ULTRACOOL DWARFS FROM THE 2MASS ALL-SKY DATA RELEASE. The Astronomical Journal. https://doi.org/10.1088/0004-6256/136/3/1290
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.
