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A Jovian-Mass Planet in Microlensing Event OGLE-2005-BLG-071

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Udalski, A., Jaroszyński, M., Paczyński, B., Kubiak, M., Szymański, M. K., Soszyński, I., Pietrzyński, G., Ulaczyk, K., Szewczyk, O., Wyrzykowski, Ł., Christie, G. W., DePoy, D. L., Dong, S., Gal-Yam, A., Gaudi, B. S., Gould, A., Han, C., Lépine, S., McCormick, J., Park, B.-G., Pogge, R. W., Bennett, D. P., Bond, I. A., Muraki, Y., Tristram, P. J., Yock, P. C. M., Beaulieu, J.-P., Bramich, D. M., Dieters, S. W., Greenhill, J., Hill, K., Horne, K., Kubas, D.·2005·The Astrophysical Journal

Abstract

We report the discovery of a several-Jupiter-mass planetary companion to the primary lens star in microlensing event OGLE-2005-BLG-071. Precise (≲1%) photometry at the peak of the event yields an extremely high signal-to-noise ratio detection of a deviation from the light curve expected from an isolated lens. The planetary character of this deviation is easily and unambiguously discernible from the gross features of the light curve. Detailed modeling yields a tightly constrained planet-star mass ratio of q = m p / M = 0.0071 ± 0.0003. This is the second robust detection of a planet with microlensing, demonstrating that the technique itself is viable and that planets are not rare in the systems probed by microlensing, which typically lie several kiloparsecs toward the Galactic center.

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Metadata

Authors
Udalski, A., Jaroszyński, M., Paczyński, B., Kubiak, M., Szymański, M. K., Soszyński, I., Pietrzyński, G., Ulaczyk, K., Szewczyk, O., Wyrzykowski, Ł., Christie, G. W., DePoy, D. L., Dong, S., Gal-Yam, A., Gaudi, B. S., Gould, A., Han, C., Lépine, S., McCormick, J., Park, B.-G., Pogge, R. W., Bennett, D. P., Bond, I. A., Muraki, Y., Tristram, P. J., Yock, P. C. M., Beaulieu, J.-P., Bramich, D. M., Dieters, S. W., Greenhill, J., Hill, K., Horne, K., & Kubas, D.
Venue
The Astrophysical Journal
Published
2005-07-18
Volume
628
Issue
2
Pages
L109-L112
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W1993325368
Cited by
287
References
0
FWCI
14.25
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: A Jovian-Mass Planet in Microlensing Event OGLE-2005-BLG-071. https://app.cochat.ai/papers/10.1086/432795
The paper
Udalski, A., Jaroszyński, M., Paczyński, B., Kubiak, M., Szymański, M. K., Soszyński, I., Pietrzyński, G., Ulaczyk, K., Szewczyk, O., Wyrzykowski, Ł., Christie, G. W., DePoy, D. L., Dong, S., Gal-Yam, A., Gaudi, B. S., Gould, A., Han, C., Lépine, S., McCormick, J., . . . Kubas, D. (2005). A Jovian-Mass Planet in Microlensing Event OGLE-2005-BLG-071. The Astrophysical Journal. https://doi.org/10.1086/432795

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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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