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Cited by 170Stellar, planetary, and galactic studiesAstronomy and Astrophysical ResearchAstro and Planetary Science

TWO “b”s IN THE BEEHIVE: THE DISCOVERY OF THE FIRST HOT JUPITERS IN AN OPEN CLUSTER

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Quinn, Samuel N., White, Russel J., Latham, David W., Buchhave, Lars A., Cantrell, Justin R., Dahm, Scott E., Fűrész, Gabor, Szentgyorgyi, Andrew H. +7 more·2012·The Astrophysical Journal
DOI 10.1088/2041-8205/756/2/l33
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Abstract

We report the discovery of two giant planets orbiting stars in Praesepe (also known as the Beehive Cluster). These are the first known hot Jupiters in an open cluster and the only planets known to orbit Sun-like, main-sequence stars in a cluster. The planets are detected from Doppler-shifted radial velocities; line bisector spans and activity indices show no correlation with orbital phase, confirming the variations are caused by planetary companions. Pr0201b orbits a V = 10.52 late F dwarf with a period of 4.4264 ± 0.0070 days and has a minimum mass of 0.540 ± 0.039 M Jup , and Pr0211b orbits a V = 12.06 late G dwarf with a period of 2.1451 ± 0.0012 days and has a minimum mass of 1.844 ± 0.064 M Jup . The detection of two planets among 53 single members surveyed establishes a lower limit of 3.8 +5.0 − 2.4 % on the hot Jupiter frequency in this metal-rich open cluster. Given the precisely known age of the cluster, this discovery also demonstrates that, in at least two cases, giant planet migration occurred within 600 Myr after formation. As we endeavor to learn more about the frequency and formation history of planets, environments with well-determined properties—such as open clusters like Praesepe—may provide essential clues to this end.

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  • Hot Jupiters have recently been discovered in young clusters, including two hot Jupiters with 2 and 4 day orbital periods in the 800 Myr Beehive cluster and HD 285507 b, a 6-day hot Jupiter with e = 0.09 ± 0.02 in the 600 Myr Hyades cluster.

    “Hot Jupiters have recently been discovered in young clusters, including two hot Jupiters with 2 and 4 day orbital periods in the metal-rich 800 Myr Beehive cluster (Quinn et al. 2012) and HD 285507 b, an 6-day hot Jupiter with e = 0 . 09 ± 0 . 02 in the 600 Myr metal-rich Hyades cluster (Quinn et al. 2014).”

    From Origins of Hot Jupiters (2018) · cites this paper as Quinn et al. 2012

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Authors
Quinn, S. N., White, R. J., Latham, D. W., Buchhave, L. A., Cantrell, J. R., Dahm, S. E., Fűrész, G., Szentgyorgyi, A. H., Geary, J. C., Torres, G., Bieryla, A., Berlind, P., Calkins, M. C., Esquerdo, G. A., & Stefanik, R. P.
Affiliations
  • Georgia State University (US)
  • Center for Astrophysics Harvard & Smithsonian (US)
  • University of Copenhagen (DK)
  • W.M. Keck Observatory (US)
ORCID
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2012-08-22
Volume
756
Issue
2
Pages
L33
ISSN
  • 2041-8205 (ISSN-L)
  • 2041-8213
DOI
10.1088/2041-8205/756/2/l33
OpenAlex
W1992384339
Cited by
170
References
0
Citations by year
2026: 3 · 2025: 3 · 2024: 7 · 2023: 6 · 2022: 10 · 2021: 9 · 2020: 17 · 2019: 14 · 2018: 38 · 2017: 13 · 2016: 16 · 2015: 6 · 2014: 10 · 2013: 13 · 2012: 2
FWCI
5.43
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal Letters (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Instrumentation › Astronomy and Astrophysical Research
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
Keywords
hot Jupiters, Praesepe, open clusters, giant planet migration, radial velocity, stellar activity, main-sequence stars, planet frequency, F dwarfs, G dwarfs

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