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HITS astrophysicists use new methods explain how supernovae evolve

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Using new methods, astrophysicists Sebastian Ohlmann, Friedrich Röpke, Rüdiger Pakmor, and Volker Springel of the Heidelberg Institute for Theoretical Studies (HITS) have now made a step forward in modeling this phenomenon. As they report in The Astrophysical Journal Letters, the scientists have successfully used simulations to discover dynamic irregularities that occur during the common-envelope phase and are crucial for the subsequent existence of binary star systems. These so-called instabilities change the flow of matter inside the envelope, thus influencing the stars’ distance from one another and determining, for example, whether a supernova will ensue and, if so, what kind it will be. The article is the fruit of collaboration between two HITS research groups, the Physics of Stellar Objects (PSO) group and the Theoretical Astrophysics group (TAP). Prof. Volker Springel’s AREPO code for hydrodynamic simulations was used and adapted for the modeling. It solves the equations on a moving mesh that follows the mass flow, and thus enhances the accuracy of the model.

Last Updated on Friday, 05 February 2016 08:07 Read more...
 

Ice age will be delay by 100 thousands years

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Huge amount of  carbon dioxide  released into the atmosphere by Humans,which could postpone the next ice age by more than 100,000 years, according to new research which finds humans are having a “mind-boggling” impact on the Earth.

Last Updated on Tuesday, 26 January 2016 13:20 Read more...
 

2015 Recorded Earth's Warmest Year

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The globally averaged temperature over land and ocean surfaces for 2015 was the highest among all years since 1880s. During the final month,  December was the highest combined temperature global land and ocean including  average surface temperature was the highest on record for any month in the 136-year record.

Last Updated on Tuesday, 26 January 2016 13:28 Read more...
 

Energy Efficiency in Developing Countries Could Reduce Emissions by 2020 through Renewable Energy

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Initial analysis of almost 6,000 projects targeting renewable energy and energy efficiency in developing countries has revealed that the projects could reduce CO2 emissions by about 1.7 gigatons a year by 2020.

The findings, released today at COP21 in Paris by the 1 Gigaton Coalition in its first annual report, entitled Narrowing the Emissions Gap: Contributions from renewable energy and energy efficiency activities, are based on projects implemented between 2005 and 2012.

Last Updated on Tuesday, 08 December 2015 07:02 Read more...
 

YOUNG ENTREPRENEURS - YOUNG MONEY

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In today’s rapidly changing world, the people who are not taking risk are the risk takers.” – Robert Kiyosaki

Call them million-dollar babies. There are thousands of young and immensely successful entrepreneurs across the globe. They don’t inherit stuff; they build it themselves, using their entrepreneurial and leadership skills.

Last Updated on Wednesday, 28 October 2015 05:39 Read more...
 
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