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Cited by 344

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Measurement of Spin‐Orbit Alignment in an Extrasolar Planetary System

Open access
Winn, Joshua N., Noyes, Robert W., Holman, Matthew J., Charbonneau, David, Ohta, Yasuhiro, Taruya, Atsushi, Suto, Yasushi, Narita, Norio, Turner, Edwin L., Johnson, John A., Marcy, Geoffrey W., Butler, R. Paul, Vogt, Steven S.·2005·The Astrophysical Journal

Abstract

We determine the stellar, planetary, and orbital properties of the transiting planetary system HD 209458 through a joint analysis of high-precision radial velocities, photometry, and timing of the secondary eclipse. Of primary interest is the strong detection of the Rossiter-McLaughlin effect, the alteration of photospheric line profiles that occurs because the planet occults part of the rotating surface of the star. We develop a new technique for modeling this effect and use it to determine the inclination of the planetary orbit relative to the apparent stellar equator (λ = -4.°4 ± 1.°4), and the line-of-sight rotation speed of the star ( v sin I ⋆ = 4.70 ± 0.16 km s -1 ). The uncertainty in these quantities has been reduced by an order of magnitude relative to the pioneering measurements by Queloz and collaborators. The small but nonzero misalignment is probably a relic of the planet formation epoch, because the expected timescale for tidal coplanarization is larger than the age of the star. Our determination of v sin I ⋆ is a rare case in which rotational line broadening has been isolated from other broadening mechanisms.

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Crossref · 10.1086/432571

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Metadata

Authors
Winn, J. N., Noyes, R. W., Holman, M. J., Charbonneau, D., Ohta, Y., Taruya, A., Suto, Y., Narita, N., Turner, E. L., Johnson, J. A., Marcy, G. W., Butler, R. P., & Vogt, S. S.
Venue
The Astrophysical Journal
Published
2005-10
Volume
631
Issue
2
Pages
1215-1226
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2145540891
Cited by
344
References
2
FWCI
15.81
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Measurement of Spin‐Orbit Alignment in an Extrasolar Planetary System. https://app.cochat.ai/papers/10.1086/432571
The paper
Winn, J. N., Noyes, R. W., Holman, M. J., Charbonneau, D., Ohta, Y., Taruya, A., Suto, Y., Narita, N., Turner, E. L., Johnson, J. A., Marcy, G. W., Butler, R. P., & Vogt, S. S. (2005). Measurement of Spin‐Orbit Alignment in an Extrasolar Planetary System. The Astrophysical Journal. https://doi.org/10.1086/432571

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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