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Astronomers discover "cosmic pretzel" 700 light-years from Earth



This is a "pretzel" that will definitely make you thirsty.

Astronomers have taken an incredible picture of two newborn stars in the system [BHB2007] 11, which is described as "cosmic pretzel" and consists of a network of gas and dust filaments.

"We see two compact sources, which we interpret as circumstellar disks around the two young stars," study lead author Felipe Alves said in a statement. "The size of each of these disks is similar to the asteroid belt in our solar system, and the distance between them is 28 times the distance between the Sun and Earth."

  The Atacama Large Millimeter / Submillimeter Array (ALMA) This unprecedented image of two circumstellar disks in which baby stars grow and feed on material from their surrounding birth disc. The complex network of spirally distributed dust structures is reminiscent of the loops of a pretzel. These observations shed new light on the earliest phases of star life and help astronomers determine the conditions under which binaries are born. (Source: ALMA / ESO / NAOJ / NRAO)

The Atacama Large Millimeter / Submillimeter Array (ALMA) has captured this unprecedented picture of two circumstellar disks on which baby stars grow and feed on material from their surrounding birth disc. The complex network of spirally distributed dust structures is reminiscent of the loops of a pretzel. These observations shed new light on the earliest phases of star life and help astronomers determine the conditions under which binaries are born. (Credit: ALMA / ESO / NAOJ / NRAO)

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The System [BHB2007] 11 is part of the Barnard 59 Nebula, located about 700 light-years from Earth. A light year measuring the distance in space equals 6 trillion miles.

The two circumstellar discs are surrounded by an even larger disc whose total mass equals 80 Jupiter, while the pretzel loops are displayed. The result, which the researchers note, is important.

"This is a really important result," said co-author of the study, Paola Caselli, managing director at MPE. "We finally visualized the complex structure of young double stars linked by their feeding threads to the disc on which they were born. This presents important constraints to current models of star formation. "

The baby stars gain mass in two steps from the much larger slice – first, when the mass is transmitted in swirling loops, resulting in the image of the pretzel; and the second, when the stars increase in mass from the circumstellar disks.

"We expect this two-stage accretion process to drive the dynamics of the binary system during its mass accretion phase," added Alves. "Although the good agreement of these observations with the theory is already promising, we need to study more recent binary systems in detail to better understand how multiple stars form."

The study was published in the journal Science. [19659003] CLICK HERE FOR THE NEW FOXBUSINESS.COM


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