| Title |
Detection of titanium oxide in the atmosphere of a hot Jupiter
|
|---|---|
| Published in |
Nature, September 2017
|
| DOI | 10.1038/nature23651 |
| Pubmed ID | |
| Authors |
Elyar Sedaghati, Henri M. J. Boffin, Ryan J. MacDonald, Siddharth Gandhi, Nikku Madhusudhan, Neale P. Gibson, Mahmoudreza Oshagh, Antonio Claret, Heike Rauer |
| Abstract |
As an exoplanet transits its host star, some of the light from the star is absorbed by the atoms and molecules in the planet's atmosphere, causing the planet to seem bigger; plotting the planet's observed size as a function of the wavelength of the light produces a transmission spectrum. Measuring the tiny variations in the transmission spectrum, together with atmospheric modelling, then gives clues to the properties of the exoplanet's atmosphere. Chemical species composed of light elements-such as hydrogen, oxygen, carbon, sodium and potassium-have in this way been detected in the atmospheres of several hot giant exoplanets, but molecules composed of heavier elements have thus far proved elusive. Nonetheless, it has been predicted that metal oxides such as titanium oxide (TiO) and vanadium oxide occur in the observable regions of the very hottest exoplanetary atmospheres, causing thermal inversions on the dayside. Here we report the detection of TiO in the atmosphere of the hot-Jupiter planet WASP-19b. Our combined spectrum, with its wide spectral coverage, reveals the presence of TiO (to a confidence level of 7.7σ), a strongly scattering haze (7.4σ) and sodium (3.4σ), and confirms the presence of water (7.9σ) in the atmosphere. |
X Demographics
The data shown below were collected from the profiles of 42 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 | 7 | 17% |
| United Kingdom | 6 | 14% |
| Spain | 3 | 7% |
| Japan | 3 | 7% |
| France | 3 | 7% |
| India | 2 | 5% |
| Mexico | 1 | 2% |
| Korea, Republic of | 1 | 2% |
| Italy | 1 | 2% |
| Other | 4 | 10% |
| Unknown | 11 | 26% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 25 | 60% |
| Scientists | 14 | 33% |
| Science communicators (journalists, bloggers, editors) | 2 | 5% |
| Practitioners (doctors, other healthcare professionals) | 1 | 2% |
Mendeley readers
The data shown below were compiled from readership statistics for 86 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 86 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 28 | 33% |
| Student > Master | 15 | 17% |
| Researcher | 14 | 16% |
| Professor > Associate Professor | 4 | 5% |
| Student > Bachelor | 3 | 3% |
| Other | 7 | 8% |
| Unknown | 15 | 17% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 48 | 56% |
| Earth and Planetary Sciences | 9 | 10% |
| Materials Science | 4 | 5% |
| Chemistry | 2 | 2% |
| Agricultural and Biological Sciences | 1 | 1% |
| Other | 5 | 6% |
| Unknown | 17 | 20% |
Attention Score in Context
This research output has an Altmetric Attention Score of 320. 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 18 March 2024.
All research outputs
#104,241
of 25,238,182 outputs
Outputs from Nature
#7,190
of 97,037 outputs
Outputs of similar age
#2,317
of 321,966 outputs
Outputs of similar age from Nature
#128
of 877 outputs
Altmetric has tracked 25,238,182 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 97,037 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 102.4. This one has done particularly well, scoring higher than 92% of its peers.
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We're also able to compare this research output to 877 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 85% of its contemporaries.