Supernova birth for a black hole
Article Abstract:
Stella evolution theories predict that stars greater than ten solar masses in size will end their lives as a black hole remnant, following a gravitational collapse or a supernova explosion. To date, there is no direct evidence of this but new research shows an over-abundance of certain elements in the star orbiting a black hole in Nova Scorpii 1994. This could be the first direct link between a supernova explosion and the birth of a black hole. The oversupply of oxygen, magnesium, silicon and sulphur could be the result of the supernova explosion of the original companion star.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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Elements of surprise
Article Abstract:
The discovery of a distant galaxy for which the abundances of around 25 elements can be measured promises new insight into the history of element creation and star formation in the universe. A number of studies made, have explored 'damped Lyman alpha' (DLA) systems, in which clouds of hydrogen gas are detected through the radiation they absorb from even more distant quasars.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
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A constant surprise
Article Abstract:
The exploration of striking similarities of elements such as iron, calcium and gold formed within stars, which have remained unchanged since the early Universe could help to understand the nature of element formation throughout the Universe, is presented.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
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