| Title |
An Earth-Sized Planet in the Habitable Zone of a Cool Star
|
|---|---|
| Published in |
Science, April 2014
|
| DOI | 10.1126/science.1249403 |
| Pubmed ID | |
| Authors |
Elisa V. Quintana, Thomas Barclay, Sean N. Raymond, Jason F. Rowe, Emeline Bolmont, Douglas A. Caldwell, Steve B. Howell, Stephen R. Kane, Daniel Huber, Justin R. Crepp, Jack J. Lissauer, David R. Ciardi, Jeffrey L. Coughlin, Mark E. Everett, Christopher E. Henze, Elliott Horch, Howard Isaacson, Eric B. Ford, Fred C. Adams, Martin Still, Roger C. Hunter, Billy Quarles, Franck Selsis |
| Abstract |
The quest for Earth-like planets is a major focus of current exoplanet research. Although planets that are Earth-sized and smaller have been detected, these planets reside in orbits that are too close to their host star to allow liquid water on their surfaces. We present the detection of Kepler-186f, a 1.11 ± 0.14 Earth-radius planet that is the outermost of five planets, all roughly Earth-sized, that transit a 0.47 ± 0.05 solar-radius star. The intensity and spectrum of the star's radiation place Kepler-186f in the stellar habitable zone, implying that if Kepler-186f has an Earth-like atmosphere and water at its surface, then some of this water is likely to be in liquid form. |
X Demographics
The data shown below were collected from the profiles of 127 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 24 | 19% |
| Spain | 7 | 6% |
| United Kingdom | 5 | 4% |
| France | 4 | 3% |
| Japan | 4 | 3% |
| Italy | 3 | 2% |
| Mexico | 2 | 2% |
| Brazil | 2 | 2% |
| Hungary | 2 | 2% |
| Other | 17 | 13% |
| Unknown | 57 | 45% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 86 | 68% |
| Scientists | 34 | 27% |
| Science communicators (journalists, bloggers, editors) | 6 | 5% |
| Practitioners (doctors, other healthcare professionals) | 1 | <1% |
Mendeley readers
The data shown below were compiled from readership statistics for 221 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 4 | 2% |
| France | 3 | 1% |
| Switzerland | 2 | <1% |
| Brazil | 2 | <1% |
| Canada | 1 | <1% |
| Chile | 1 | <1% |
| Japan | 1 | <1% |
| Singapore | 1 | <1% |
| Unknown | 206 | 93% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 48 | 22% |
| Researcher | 38 | 17% |
| Student > Bachelor | 36 | 16% |
| Student > Master | 22 | 10% |
| Other | 13 | 6% |
| Other | 35 | 16% |
| Unknown | 29 | 13% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 100 | 45% |
| Earth and Planetary Sciences | 28 | 13% |
| Agricultural and Biological Sciences | 18 | 8% |
| Chemistry | 12 | 5% |
| Social Sciences | 7 | 3% |
| Other | 24 | 11% |
| Unknown | 32 | 14% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1244. 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 29 December 2023.
All research outputs
#11,234
of 25,753,031 outputs
Outputs from Science
#587
of 83,298 outputs
Outputs of similar age
#42
of 241,903 outputs
Outputs of similar age from Science
#3
of 866 outputs
Altmetric has tracked 25,753,031 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 83,298 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 66.0. 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 241,903 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 866 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.