Astronomers Discover Youngest Solar System Yet
The protostar, labeled L1527 IRS, resides in a stellar nursery called Taurus Cloud in the constellation Taurus about 450 light-years from Earth. It is about 300,000 years old, compared to the 4.6-billion-year age of the Sun.
“It may be even younger, depending on how fast it accumulated mass in the past,” said Dr John Tobin of the National Radio Astronomy Observatory in Charlottesville, lead author of the study published in the journal Nature (arXiv.org version).
The young star currently has about one-fifth the mass of the Sun, but will likely pull in material from its surroundings to eventually match the Sun’s mass. The disk surrounding the star contains at least enough mass to make seven Jupiters.
“This very young object has all the elements of a solar system in the making,” Dr Tobin said.
The astronomers detected both dust and carbon monoxide around L1527 IRS, and were able to measure the mass of the protostar itself.
Sources and more information:
Astronomers discover and 'weigh' infant solar system Young star with rotating dust disk is youngest still-forming planetary system yet found Astronomers have found the youngest still-forming solar system yet seen, an infant star surrounded by a swirling disk of dust and gas more than 450 light-years from Earth in the constellation Taurus.
( via sci-news.com )
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