Diamond `super-earth` may not be `so precious`
Washington: An alien world reported to be the first known planet to consist largely of diamond appears less likely to be of such precious nature, a new analysis has shown.
According to new research led by University of Arizona astronomy graduate student Johanna Teske, the planet that is 40 light years from our solar system, believed to be the first-ever discovered planet to consist largely of diamond, may in fact be of less exquisite nature.
Revisiting public data from previous telescope observations, Teske`s team analyzed the available data in more detail and concluded that carbon - the chemical element diamonds are made of - appears to be less abundant in relation to oxygen in the planet`s host star - and by extension, perhaps the planet - than was suggested by a study of the host star published in 2010.
Teske said that the 2010 paper found that `55 Cancri e,` a star that hosts five planets, has a carbon-to-oxygen ratio greater than one.
She said that this observation helped motivate a paper last year about the innermost planet of the system, the `super-Earth` 55 Cancri e.
Teske asserted that using observations of the planet`s mass and radius to create models of its interior that assumed the same carbon-to-oxygen ratio of the star, the 2012 paper suggested the planet contains more carbon than oxygen.
She said that the sun only has about half as much carbon as oxygen, so a star or a planet with a higher ratio between the two elements, particularly a planet with more carbon than oxygen, is interesting and different from what we have in our solar system.
Teske`s group found that the planet`s host star contains almost 25 percent more oxygen than carbon, about mid way between the Sun and what the previous study suggested.
The new research is set to be published in the Astrophysical Journal and available online.
More from India
More from World
More from Sports
More from Entertaiment
- Panel discussion on the need of 'smart' politics in India
- Panel discussion on the need of 'smart' politics in India - Part II
- Panel discussion on the need of 'smart' politics in India - Part III
- Dr Subhash Chandra Show: How will business be conducted in the future?
- Dr Subhash Chandra Show: How will business be conducted in the future? - Part II
- England V Pakistan: James Anderson doubtful for first Test, fractures right shoulder
- Dieselgate: Volkswagen Ready to Pay $10 billion to settle US claims
- Aston Martin begins production of new Twin-Turbo V12 Engine
- Scotland seeks immediate EU talks to protect place in bloc
- Bihar toppers scam: Arts topper Ruby Rai arrested