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Indian Scientists Leads Global Team In Astronomy

Posted by rajascientist Monday, December 28, 2009


     After Chandrayaan-1's discovery of water molecules on the Moon comes another astronomy breakthrough for India. An international grouplead by Sudip Bhattacharyya, a 36-year-old space scientist at Mumbai's Tata Institute of Fundamental research, has discovered a way to measure the size of neutron stars.

                        Before we go any further, what is a neutron star? Speaking to TOI on Monday, Bhattacharyya explained: "To put it simply, it is the final stage of a very massive star. When the massive star burns up its fuel, it collapses to become a neutron star," he said, adding that there are between 100 million and 1,000 million neutron stars in the galaxy.

  On average, a neutron star is very small — approximately 10km in diameter — and 10,000 light years from Earth, thus making it extremely difficult to study and measure. Bhattacharyya and his team's research revealed the unsuspected property of X-ray bursts given off by the stars, which led to the discovery that the pattern of X-rays generated might reveal their true size.

                    "Since these X-rays cannot reach the Earth because of a blanket created by the atmosphere, data was collected of more than 900 bursts from 43 neutron stars through a Nasa satellite and transmitted to us," Bhattacharyya said.

                     The scientist and his colleagues — Coleman Miller of the University of Maryland and Galloway Monash of the University of Australia — modelled how the temperature of the bursts changed as they faded and found it varied in relation to the radius of the star. The team's research has been accepted for publication in the journal Monthly Notices of the Royal Astronomical Society.


  1. max den Says:
  2. Amazingpost

  3. Anonymous Says:
  4. From this post, we can imagine thee size of our atmosphere as the scientists are still not able to count the stars and students take bestessay help to give words to the post in their own words but that work is remarkable and we must all praise the scientists that they are discovering more for us and for our future.


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