|dethalternate||Date: Friday, 20-March-2015, 4:46 PM | Message # 1|
-- dragon lord--
|A star discovered by scientists at Queen’s University has broken the galactic speed record - by doing 1,200 kilometres per second. |
Experts at the college’s Astrophysics Centre revealed Wednesday that the ‘unbound star’, named US708, is travelling at the fastest speed ever recorded for such an object in our galaxy - meaning it is not held back by gravity and will eventually leave the Milky Way.
They say US708 is believed to have once been part of a double-star solar system, which also included a massive white dwarf star. But the white dwarf is thought to have turned into a ‘thermonuclear supernovae’ and exploded, sending US708 hurtling across space.
The discovery of US708 sheds light on the mysterious double-star systems that give rise to thermonuclear explosions. Thermonuclear, or ‘type Ia’, supernovae have long been used to calculate the distances to faraway galaxies - a measurement which helps to determine how the universe is changing and expanding.
Dr Rubina Kotak and Ken Smith, from the Astrophysics Centre, were part of a team of scientists from countries across the world who made the “ground-breaking discovery” using data gathered by the Pan-STARRS1 telescope on Mount Haleakala on the Hawaiian island of Maui. Using a range of data gathered over the last 59 years the team were able to determine the full 3-D motion of the star and measure how quickly it is moving across the plane of the sky.
Read more/full article/source - http://www.belfastlive.co.uk/news....8815127