Wednesday, November 5, 2014

ScienceDaily: Stars News

ScienceDaily: Stars News


Astronomers solve puzzle about bizarre object at center of our galaxy: Enormous black hole drove two binary stars to merge

Posted: 03 Nov 2014 04:21 PM PST

The mystery about a thin, bizarre object in the center of the Milky Way that some astronomers believe to be a hydrogen gas cloud headed toward our galaxy's enormous black hole has been solved by astronomers.

Investigating a triple star system in formation

Posted: 03 Nov 2014 09:10 AM PST

Astronomers have carried out the most accurate study so far of the cocoon of gas and dust surrounding the GG Tau A system. By combining complementary observations at submillimeter (ALMA and IRAM) wavelengths with those at infrared (VLTI/ESO) wavelengths, the researchers were able to identify the complex dynamics at work in GG Tau. For the first time, they detected motion of matter showing that exoplanets can form not only around one of the members of this trio of young stars, but also much further out in the disc surrounding the three stars.

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