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About this Attention Score

  • 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 (84th percentile)

Mentioned by

27 news outlets
9 blogs
38 tweeters
8 Facebook pages
5 Wikipedia pages
5 Google+ users
1 Redditor
1 video uploader


182 Dimensions

Readers on

128 Mendeley
The comet-like composition of a protoplanetary disk as revealed by complex cyanides
Published in
Nature, April 2015
DOI 10.1038/nature14276
Pubmed ID

Karin I. Öberg, Viviana V. Guzmán, Kenji Furuya, Chunhua Qi, Yuri Aikawa, Sean M. Andrews, Ryan Loomis, David J. Wilner


Observations of comets and asteroids show that the solar nebula that spawned our planetary system was rich in water and organic molecules. Bombardment brought these organics to the young Earth's surface. Unlike asteroids, comets preserve a nearly pristine record of the solar nebula composition. The presence of cyanides in comets, including 0.01 per cent of methyl cyanide (CH3CN) with respect to water, is of special interest because of the importance of C-N bonds for abiotic amino acid synthesis. Comet-like compositions of simple and complex volatiles are found in protostars, and can readily be explained by a combination of gas-phase chemistry (to form, for example, HCN) and an active ice-phase chemistry on grain surfaces that advances complexity. Simple volatiles, including water and HCN, have been detected previously in solar nebula analogues, indicating that they survive disk formation or are re-formed in situ. It has hitherto been unclear whether the same holds for more complex organic molecules outside the solar nebula, given that recent observations show a marked change in the chemistry at the boundary between nascent envelopes and young disks due to accretion shocks. Here we report the detection of the complex cyanides CH3CN and HC3N (and HCN) in the protoplanetary disk around the young star MWC 480. We find that the abundance ratios of these nitrogen-bearing organics in the gas phase are similar to those in comets, which suggests an even higher relative abundance of complex cyanides in the disk ice. This implies that complex organics accompany simpler volatiles in protoplanetary disks, and that the rich organic chemistry of our solar nebula was not unique.

Twitter Demographics

The data shown below were collected from the profiles of 38 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 128 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 3 2%
Germany 1 <1%
France 1 <1%
Switzerland 1 <1%
Venezuela, Bolivarian Republic of 1 <1%
Canada 1 <1%
Unknown 120 94%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 32 25%
Researcher 30 23%
Student > Bachelor 15 12%
Student > Master 9 7%
Other 8 6%
Other 18 14%
Unknown 16 13%
Readers by discipline Count As %
Physics and Astronomy 47 37%
Chemistry 27 21%
Earth and Planetary Sciences 8 6%
Agricultural and Biological Sciences 7 5%
Materials Science 3 2%
Other 16 13%
Unknown 20 16%

Attention Score in Context

This research output has an Altmetric Attention Score of 307. 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 05 August 2021.
All research outputs
of 23,312,088 outputs
Outputs from Nature
of 92,067 outputs
Outputs of similar age
of 265,720 outputs
Outputs of similar age from Nature
of 1,018 outputs
Altmetric has tracked 23,312,088 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 92,067 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 100.1. 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 265,720 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 1,018 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 84% of its contemporaries.