The DOI matches its Crossref record; 30 of the 31 references it cites were found in a registry or an index.
A planetary system as the origin of structure in Fomalhaut's dust belt
Open accessAbstract
The Sun and >15 per cent of nearby stars are surrounded by dusty disks that must be collisionally replenished by asteroids and comets, as the dust would otherwise be depleted on timescales <10(7) years (ref. 1). Theoretical studies show that the structure of a dusty disk can be modified by the gravitational influence of planets, but the observational evidence is incomplete, at least in part because maps of the thermal infrared emission from the disks have low linear resolution (35 au in the best case). Optical images provide higher resolution, but the closest examples (AU Mic and beta Pic) are edge-on, preventing the direct measurement of the azimuthal and radial disk structure that is required for fitting theoretical models of planetary perturbations. Here we report the detection of optical light reflected from the dust grains orbiting Fomalhaut (HD 216956). The system is inclined 24 degrees away from edge-on, enabling the measurement of disk structure around its entire circumference, at a linear resolution of 0.5 au. The dust is distributed in a belt 25 au wide, with a very sharp inner edge at a radial distance of 133 au, and we measure an offset of 15 au between the belt's geometric centre and Fomalhaut. Taken together, the sharp inner edge and offset demonstrate the presence of planetary-mass objects orbiting Fomalhaut.
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“Such forward scattering is seen and modelled in Fomalhaut's debris disc (Kalas, Graham & Clampin 2005) and in the light curve produced by a disintegrating exoplanet KIC 12557548 b (Brogi et al. 2012;Rappaport et al. 2012).”
From Analysis of 1SWASP J140747.93−394542.6 eclipse fine-structure: hints of exomoons (2014) · cites this paper as Kalas, Graham & Clampin 2005
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Discovery of a Large Dust Disk Around the Nearby Star AU Microscopii
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Avsar, A., Wagner, K., Apai, D., Stark, C. C., & Rebollido, I. (2026) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/ae4eb9
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Gáspár, A., Leisenring, J., Wolff, S. G., Lawson, K., Rieke, G. H., Deng, D., Rieke, M. J., Sefilian, A. A., Beichman, C., Lovell, J. B., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae9d6f
Characterizing young debris disks through far-infrared and optical observations
Donaldson, J. (2014) · University Libraries (University of Maryland) · doi:10.13016/m26k6n
Metadata
- Authors
- Kalas, P., Graham, J. R., & Clampin, M.
- Affiliations
- University of California, Berkeley (US)
- Goddard Space Flight Center (US)
- Corresponding author
- Kalas, Paul
- Venue
- Nature
- Published
- 2005-06
- Volume
- 435
- Issue
- 7045
- Pages
- 1067-1070
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2100118938
- Cited by
- 411
- References
- 31
- Citations by year
- 2026: 9 · 2025: 8 · 2024: 10 · 2023: 12 · 2022: 7 · 2021: 14 · 2020: 12 · 2019: 10 · 2018: 13 · 2017: 20 · 2016: 23 · 2015: 29 · 2014: 40 · 2013: 42 · 2012: 35
- FWCI
- 12.59
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Astro and Planetary Science
- Keywords
- Fomalhaut, debris disks, circumstellar dust, planetary perturbations, disk structure, inner disk edge, planet formation, planetary-mass objects
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