Friday, September 12, 2014

ScienceDaily: Stars News

ScienceDaily: Stars News

Astrophysicists to probe how early universe made chemical elements

Posted: 11 Sep 2014 01:39 PM PDT

In the beginning, all was hydrogen -- and helium, plus a bit of lithium. Three elements in all. Today's universe, however, has nearly a hundred naturally occurring elements, with thousands of variants (isotopes), and more likely to come. Figuring out how the universe got from its starting batch of three elements to the menagerie found today is the focus of a new research project.

'Hot Jupiters' provoke their own host suns to wobble

Posted: 11 Sep 2014 10:54 AM PDT

Blame the 'hot Jupiters.' These large, gaseous exoplanets can make their suns wobble when they wend their way through their own solar systems to snuggle up against their suns, according to new research.

Lurking bright blue star caught: The last piece of a supernova puzzle

Posted: 11 Sep 2014 06:47 AM PDT

Astronomers have found evidence of a hot binary companion star to a yellow supergiant star, which had become a bright supernova. Its existence had been predicted by the team. This finding provides the last link in a chain of observations that have so far supported the team's theoretical picture for this supernova.

Astronomers pinpoint 'Venus Zone' around stars

Posted: 10 Sep 2014 06:41 PM PDT

Astronomers have defined the 'Venus Zone,' the area around a star in which a planet is likely to exhibit the unlivable conditions found on the planet Venus. The research will aid Kepler astronomers searching for exoplanets, helping them determine which are likely to be similar to Earth and which are more likely to resemble Venus.
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