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Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1

Overview of attention for article published in Nature, February 2017
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • Among the highest-scoring outputs from this source (#24 of 62,281)
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (99th percentile)

Citations

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342 Dimensions

Readers on

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442 Mendeley
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3 CiteULike
Title
Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
Published in
Nature, February 2017
DOI 10.1038/nature21360
Pubmed ID
Authors

Michaël Gillon, Amaury H. M. J. Triaud, Brice-Olivier Demory, Emmanuël Jehin, Eric Agol, Katherine M. Deck, Susan M. Lederer, Julien de Wit, Artem Burdanov, James G. Ingalls, Emeline Bolmont, Jeremy Leconte, Sean N. Raymond, Franck Selsis, Martin Turbet, Khalid Barkaoui, Adam Burgasser, Matthew R. Burleigh, Sean J. Carey, Aleksander Chaushev, Chris M. Copperwheat, Laetitia Delrez, Catarina S. Fernandes, Daniel L. Holdsworth, Enrico J. Kotze, Valérie Van Grootel, Yaseen Almleaky, Zouhair Benkhaldoun, Pierre Magain, Didier Queloz

Abstract

One aim of modern astronomy is to detect temperate, Earth-like exoplanets that are well suited for atmospheric characterization. Recently, three Earth-sized planets were detected that transit (that is, pass in front of) a star with a mass just eight per cent that of the Sun, located 12 parsecs away. The transiting configuration of these planets, combined with the Jupiter-like size of their host star-named TRAPPIST-1-makes possible in-depth studies of their atmospheric properties with present-day and future astronomical facilities. Here we report the results of a photometric monitoring campaign of that star from the ground and space. Our observations reveal that at least seven planets with sizes and masses similar to those of Earth revolve around TRAPPIST-1. The six inner planets form a near-resonant chain, such that their orbital periods (1.51, 2.42, 4.04, 6.06, 9.1 and 12.35 days) are near-ratios of small integers. This architecture suggests that the planets formed farther from the star and migrated inwards. Moreover, the seven planets have equilibrium temperatures low enough to make possible the presence of liquid water on their surfaces.

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 442 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 7 2%
Germany 3 <1%
Japan 2 <1%
Switzerland 2 <1%
Spain 2 <1%
Brazil 2 <1%
France 2 <1%
Canada 2 <1%
India 1 <1%
Other 10 2%
Unknown 409 93%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 122 28%
Student > Bachelor 78 18%
Researcher 66 15%
Student > Master 58 13%
Student > Doctoral Student 21 5%
Other 97 22%
Readers by discipline Count As %
Physics and Astronomy 228 52%
Earth and Planetary Sciences 37 8%
Agricultural and Biological Sciences 37 8%
Unspecified 29 7%
Chemistry 19 4%
Other 92 21%

Attention Score in Context

This research output has an Altmetric Attention Score of 3645. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 13 December 2018.
All research outputs
#114
of 12,292,807 outputs
Outputs from Nature
#24
of 62,281 outputs
Outputs of similar age
#7
of 258,585 outputs
Outputs of similar age from Nature
#2
of 890 outputs
Altmetric has tracked 12,292,807 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 62,281 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 73.9. This one has done particularly well, scoring higher than 99% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 258,585 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 890 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 99% of its contemporaries.