This is how a star like the Sun dies
09-07-2015 THE CAB IN THE MEDIA (The World)

The energy of the stars is not inexhaustible. Sooner or later, in a calm or explosive way, the life of each star comes to an end. No one has lived long enough to see a star born and die, understandably if you take into account that most of them take millions of years to reach the end of their lives.

But now, a team of astronomers has been able to observe, for the first time and live, the dying death of a star of mass similar to the sun. The evolution of these low mass stars is much slower than that of high mass stars (those that explode as supernovae). Hence, it is very difficult to know at what time this transformation of star in planetary nebula takes place.

This study, published in the magazine The Astrophysical Journal, shows the transformation in real time of the star IRAS 15103- 5754 in planetary nebula.

This international research team, led by Olga Suárez, Spanish researcher at the Costa Azul Observatory (Nice, France), and in which researchers from the Institute of Astrophysics of Andalusia ( IAA-CSIC) and the Center for Astrobiology (CAB-INTA), has observed this star several times with the interferometer-radio ATCA2, in Australia. These observations show variations in the radio wave emission of the star in only 2 years.



Fuente: El Mundo


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