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Sun will end its life with detonation - VIDEO PDF Print E-mail
Friday, 20 February 2015 03:00

Sun and stars like him end his life powerful and virtually instantaneous explosion rather than a slowly emerging planetary nebula, the astronomers found that published the results of their observations of the elderly double our lights in the Astrophysical Journal.
"In a few billion years, our Sun will run out of stocks" nuclear fuel "will swell and turn into a red giant and throw most of its mass. The result of this process will be a white dwarf star surrounded by glowing planetary nebula. Although all the stars, whose weight does not exceed ten solar, going through this short but important transition to the last stage of life, many details of the death of Sun-like stars have remained a mystery to us, "- says the author, Jose Gomez of the Institute of Astrophysics of Andalusia in Granada (Spain).


Gomez and his colleagues found that Sun-like stars do not experience prolonged agony and die almost "instantly" in astronomical terms, watching analogue of the dying Sun, a star in the constellation of IRAS 15103-5754 compass using the space telescope "Herschel" and a number of ground-based observatories.

This star, as explained by scientists, is a rare club of stars that astronomers call "water fountains." Scientists refer to this word elderly Sunlike stars that have already started to die and disposed of in the surrounding area hot beams of matter comprising a plurality of water molecules. These molecules produce a large amount of microwave radiation, which scientists and find such space "fountains".

To date, astronomers know of only 16 such luminaries of two hundred billion stars in the Galaxy, which makes them particularly valuable for science, considering that in this state they live very long. As shown by observations of IRAS 15103-5754, a dying star that was even more unique than first thought members of the scientific team Gomez.


"The water molecules usually decompose almost immediately after the formation of a planetary nebula, and in those rare cases where we were able to fix their maser emission, the velocity of the molecules in these beams were very low. In the case of IRAS 15103-5754 we first saw the light, which is produced water, moving at the speed of hundreds of kilometers per second. We were able to catch the star in transition planetary nebula, and follow him in real time "- adds his colleague at the institute, Luis Miranda (Luis Miranda).


Such a high rate of motion of molecules explains Gomez, is only possible if the species, their star explodes, rather than slowly disintegrates into layers and "spreads" on outer space, as previously thought. This finding, according to the authors, make astronomers to rethink the death of those scenarios that await our Sun in a few billion years.


НАЖМИТЕ ЗДЕСЬ ДЛЯ ПРОСМОТРА ВСЕГО СПИСКА НОВОСТЕЙ О НЕОБЫЧНЫХ ЯВЛЕНИЯХ>>>

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Last Updated on Thursday, 19 February 2015 19:19
 

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