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A prevalence of dynamo-generated magnetic fields in the cores of intermediate-mass stars

Overview of attention for article published in Nature, January 2016
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  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (83rd percentile)

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36 news outlets
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2 blogs
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54 X users
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3 Facebook pages

Citations

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117 Dimensions

Readers on

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40 Mendeley
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1 CiteULike
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Title
A prevalence of dynamo-generated magnetic fields in the cores of intermediate-mass stars
Published in
Nature, January 2016
DOI 10.1038/nature16171
Pubmed ID
Authors

Dennis Stello, Matteo Cantiello, Jim Fuller, Daniel Huber, Rafael A. García, Timothy R. Bedding, Lars Bildsten, Victor Silva Aguirre

Abstract

Magnetic fields play a part in almost all stages of stellar evolution. Most low-mass stars, including the Sun, show surface fields that are generated by dynamo processes in their convective envelopes. Intermediate-mass stars do not have deep convective envelopes, although 10 per cent exhibit strong surface fields that are presumed to be residuals from the star formation process. These stars do have convective cores that might produce internal magnetic fields, and these fields might survive into later stages of stellar evolution, but information has been limited by our inability to measure the fields below the stellar surface. Here we report the strength of dipolar oscillation modes for a sample of 3,600 red giant stars. About 20 per cent of our sample show mode suppression, by strong magnetic fields in the cores, but this fraction is a strong function of mass. Strong core fields occur only in red giants heavier than 1.1 solar masses, and the occurrence rate is at least 50 per cent for intermediate-mass stars (1.6-2.0 solar masses), indicating that powerful dynamos were very common in the previously convective cores of these stars.

X Demographics

X Demographics

The data shown below were collected from the profiles of 54 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 40 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 2 5%
United States 1 3%
Germany 1 3%
Unknown 36 90%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 10 25%
Researcher 10 25%
Student > Bachelor 5 13%
Professor 2 5%
Student > Master 2 5%
Other 6 15%
Unknown 5 13%
Readers by discipline Count As %
Physics and Astronomy 30 75%
Engineering 2 5%
Earth and Planetary Sciences 1 3%
Computer Science 1 3%
Unknown 6 15%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 304. 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 28 May 2022.
All research outputs
#110,021
of 24,898,480 outputs
Outputs from Nature
#7,522
of 96,156 outputs
Outputs of similar age
#1,786
of 404,819 outputs
Outputs of similar age from Nature
#159
of 956 outputs
Altmetric has tracked 24,898,480 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 96,156 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 102.0. This one has done particularly well, scoring higher than 92% 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 404,819 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 956 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 83% of its contemporaries.