The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
THE RADIUS DISTRIBUTION OF PLANETS AROUND COOL STARS
Open accessAbstract
We calculate an empirical, non-parametric estimate of the shape of the period–marginalized radius distribution of planets with periods less than 150 days using the small yet well-characterized sample of cool ( T eff < 4000 K) dwarf stars in the Kepler catalog. In particular, we present and validate a new procedure, based on weighted kernel density estimation, to reconstruct the shape of the planet radius function down to radii smaller than the completeness limit of the survey at the longest periods. Under the assumption that the period distribution of planets does not change dramatically with planet radius, we show that the occurrence of planets around these stars continues to increase to below 1 R ⊕ , and that there is no strong evidence for a turnover in the planet radius function. In fact, we demonstrate using many iterations of simulated data that a spurious turnover may be inferred from data even when the true distribution continues to rise toward smaller radii. Finally, the sharp rise in the radius distribution below ∼3 R ⊕ implies that a large number of planets await discovery around cool dwarfs as the sensitivities of ground-based transit surveys increase.
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
A Jupiter-mass companion to a solar-type star
Mayor, M., & Queloz, D. (1995) · Nature · doi:10.1038/378355a0 · Cited by 4,111
HABITABLE ZONES AROUND MAIN-SEQUENCE STARS: NEW ESTIMATES
Kopparapu, R. K., Ramirez, R., Kasting, J. F., Eymet, V., Robinson, T. D., Mahadevan, S., Terrien, R. C., Domagal-Goldman, S., Meadows, V., & Deshpande, R. (2013) · The Astrophysical Journal · doi:10.1088/0004-637x/765/2/131 · Cited by 1,615
Borucki, W. J., Koch, D. G., Basri, G., Batalha, N., Brown, T. M., Bryson, S. T., Caldwell, D., Christensen-Dalsgaard, J., Cochran, W. D., DeVore, E., et al. (2011) · The Astrophysical Journal · doi:10.1088/0004-637x/736/1/19 · Cited by 1,042
A super-Earth transiting a nearby low-mass star
Charbonneau, D., Berta, Z. K., Irwin, J., Burke, C. J., Nutzman, P., Buchhave, L. A., Lovis, C., Bonfils, X., Latham, D. W., Udry, S., et al. (2009) · Nature · doi:10.1038/nature08679 · Cited by 797
Giant Planet Occurrence in the Stellar Mass-Metallicity Plane
Johnson, J. A., Aller, K. M., Howard, A. W., & Crepp, J. R. (2010) · Publications of the Astronomical Society of the Pacific · doi:10.1086/655775 · Cited by 782
THE MASS-RADIUS RELATION FOR 65 EXOPLANETS SMALLER THAN 4 EARTH RADII
Weiss, L. M., & Marcy, G. W. (2014) · The Astrophysical Journal · doi:10.1088/2041-8205/783/1/l6 · Cited by 665
The Occurrence and Mass Distribution of Close-in Super-Earths, Neptunes, and Jupiters
Howard, A. W., Marcy, G. W., Johnson, J. A., Fischer, D. A., Wright, J. T., Isaacson, H., Valenti, J. A., Anderson, J., Lin, D. N. C., & Ida, S. (2010) · Science · doi:10.1126/science.1194854 · Cited by 635
THE FREQUENCY OF HOT JUPITERS ORBITING NEARBY SOLAR-TYPE STARS
Wright, J. T., Marcy, G. W., Howard, A. W., Johnson, J. A., Morton, T. D., & Fischer, D. A. (2012) · The Astrophysical Journal · doi:10.1088/0004-637x/753/2/160 · Cited by 371 · cited 1×
“But not unlike many areas of astronomy, the first discoveries are not representative samples; rather, close-in giant planets are relatively rare (Wright et al. 2012; Howard et al. 2010) in comparison to the new populations of exoplanets now being revealed by the Kepler Mission (Borucki et al. 2011;…”
BackgroundSelf-citationDENSITY AND ECCENTRICITY OF KEPLER PLANETS
Wu, Y., & Lithwick, Y. (2013) · The Astrophysical Journal · doi:10.1088/0004-637x/772/1/74 · Cited by 231
Planetary Candidates Observed by Kepler, III: Analysis of the First 16 Months of Data
Batalha, N. M., Rowe, J. F., Bryson, S. T., Barclay, T., Burke, C. J., Caldwell, D. A., Christiansen, J. L., Mullally, F., Thompson, S. E., Brown, T. M., et al. (2012) · arXiv · doi:10.48550/arxiv.1202.5852 · Cited by 10
Cited by
The habitability of planets orbiting M-dwarf stars
Shields, A. L., Ballard, S., & Johnson, J. A. (2016) · Physics Reports · doi:10.1016/j.physrep.2016.10.003 · Cited by 319
A STELLAR-MASS-DEPENDENT DROP IN PLANET OCCURRENCE RATES
Mulders, G. D., Pascucci, I., & Apai, D. (2015) · The Astrophysical Journal · doi:10.1088/0004-637x/798/2/112 · Cited by 294
Hot super-Earths stripped by their host stars
Lundkvist, M. S., Kjeldsen, H., Albrecht, S., Davies, G. R., Basu, S., Huber, D., Justesen, A. B., Karoff, C., Silva Aguirre, V., Van Eylen, V., et al. (2016) · Nature Communications · doi:10.1038/ncomms11201 · Cited by 258
Pan-Planets: Searching for hot Jupiters around cool dwarfs
Obermeier, C., Koppenhoefer, J., Saglia, R. P., Henning, T., Bender, R., Kodric, M., Deacon, N., Riffeser, A., Burgett, W., Chambers, K. C., et al. (2016) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201527633 · Cited by 38
Metadata
- Authors
- Morton, T. D., & Swift, J.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2014-07-21
- Volume
- 791
- Issue
- 1
- Pages
- 10
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2005950732
- Cited by
- 168
- References
- 10
- FWCI
- 12.91
- 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: THE RADIUS DISTRIBUTION OF PLANETS AROUND COOL STARS. https://app.cochat.ai/papers/10.1088/0004-637x/791/1/10
- The paper
- Morton, T. D., & Swift, J. (2014). THE RADIUS DISTRIBUTION OF PLANETS AROUND COOL STARS. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/791/1/10
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.
