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Astronomy News - Our Galaxy


Are Type I Supernovae Progenitors Single or Double Degenerate Systems? - 25th February 2010

WD merger Type I supernovae occur when a white dwarf, or two combining white dwarfs, reach the Chandrasekhar limit and explode. The Chandrasekhar limit is the maximum possible mass a white dwarf can have: 1.4 times the mass of the sun. New findings by scientists at the Max Planck Institute in Germany have found evidence that up to 95% of type I supernovae in some galaxies are caused by the merger of two white dwarfs, rather than by a white dwarf accreting matter from a companion star. Read more...



Eruption of the recurrent nova U Scorpii - 15th February 2010

U Scorpii On 28th January 2010 the recurrent nova U Scorpii was observed in outburst for the 8th time since it was first seen in 1863. Recurrent novae are amongst the most fascinating phenomena in the universe and are an area of active study in the field of astronomy. Read more...