The DOI matches its Crossref record; 90 of the 90 references it cites were found in a registry or an index.
WASP-17b: AN ULTRA-LOW DENSITY PLANET IN A PROBABLE RETROGRADE ORBIT
Open accessAbstract
We report the discovery of the transiting giant planet WASP-17b, the least-dense planet currently known. It is 1.6 Saturn masses, but 1.5–2 Jupiter radii, giving a density of 6%–14% that of Jupiter. WASP-17b is in a 3.7 day orbit around a sub-solar metallicity, V = 11.6, F6 star. Preliminary detection of the Rossiter–McLaughlin effect suggests that WASP-17b is in a retrograde orbit (λ ≈ −150°), indicative of a violent history involving planet–planet or star–planet scattering. WASP-17b's bloated radius could be due to tidal heating resulting from recent or ongoing tidal circularization of an eccentric orbit, such as the highly eccentric orbits that typically result from scattering interactions. It will thus be important to determine more precisely the current orbital eccentricity by further high-precision radial velocity measurements or by timing the secondary eclipse, both to reduce the uncertainty on the planet's radius and to test tidal-heating models. Owing to its low surface gravity, WASP-17b's atmosphere has the largest scale height of any known planet, making it a good target for transmission spectroscopy.
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“Extrasolar planets have been detected with their orbital axes inclined by more than 90 degrees with respect to their star's rotation axis (e.g.WASP-17b; Anderson et al. 2010).”
From Constraints on the size and dynamics of the J1407b ring system (2016) · cites this paper as Anderson et al. 2010
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Cites
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“WASP-South is hosted by the South African Astronomical Observatory and we are grateful for their support and assistance.”
MethodSelf-citationOrbital migration of the planetary companion of 51 Pegasi to its present location
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Research works printed but not linked: 4
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- Pepe, 2005, Messenger, 120, 22
- Queloz, 2000, A&A, 359, L13
- Queloz, 2000, A&A, 354, 99
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Items 201–209 of 209
Sokov, E. N. (2016) · Journal of Physics Conference Series · doi:10.1088/1742-6596/769/1/012012
Basic Theory Exoplanet Detection
Awiphan, S. (2018) · Springer theses · doi:10.1007/978-3-319-90957-8_2
The impact of star cluster environments on planet formation
Nicholson, R. B. (2019) · Liverpool John Moores University · doi:10.24377/ljmu.t.00011262
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Radiatively Controlled Thermal Stability of High-altitude Clouds in Exoplanetary Atmospheres
Shefferson-Nagata, T. M., & Ohno, K. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae7d27
Metadata
- Authors
- Anderson, D. R., Hellier, C., Gillon, M., Triaud, A. H. M. J., Smalley, B., Hebb, L., Cameron, A. C., Maxted, P. F. L., Queloz, D., West, R. G., Bentley, S. J., Enoch, B., Horne, K., Lister, T. A., Mayor, M., Parley, N. R., Pepe, F., Pollacco, D., Ségransan, D., Udry, S., & Wilson, D. M.
- Affiliations
- Keele University (GB)
- University of Geneva (CH)
- University of St Andrews (GB)
- University of Leicester (GB)
- Las Cumbres Observatory Global Telescope Network (US)
- Queen's University Belfast (GB)
- University of Kent (GB)
- ORCID
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2009-12-29
- Volume
- 709
- Issue
- 1
- Pages
- 159-167
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2137800231
- Cited by
- 208
- References
- 89
- Citations by year
- 2026: 5 · 2025: 5 · 2024: 6 · 2023: 8 · 2022: 10 · 2021: 1 · 2020: 3 · 2019: 6 · 2018: 9 · 2017: 8 · 2016: 15 · 2015: 6 · 2014: 4 · 2013: 12 · 2012: 27
- FWCI
- 18.46
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- The Astrophysical Journal (publishedVersion)
- University of Birmingham Research Portal (University of Birmingham) (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- ORBi (University of Liège) (submittedVersion, other-oa)
- Leicester Research Archive (University of Leicester) (submittedVersion)
- Research Portal (Queen's University Belfast) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Queen's University Belfast
- Queen's University
- Science and Technology Facilities Council (PP/F000081/1, ST/I002308/1, PP/F000065/1, PP/F000057/1, PP/F000073/1, PP/D000955/1, ST/G002355/1, ST/G001987/1)
- Topics
- 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
- Physical Sciences › Physics and Astronomy › Instrumentation › Astronomy and Astrophysical Research
- Keywords
- WASP-17b, transiting exoplanets, retrograde orbits, Rossiter-McLaughlin effect, planet-planet scattering, tidal heating, orbital eccentricity, tidal circularization, transmission spectroscopy, atmospheric scale height, low surface gravity, hot Jupiters
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