Madrid, January 10 (European Press) –
A jet of unprecedented material has been seen emerging from the gas disk of the strange star MWC 349A “Incredibly fast speeds.” believed to be caused by it Huge magnetic forces that surround the star.
The discovery, made using the Atacama Large Millimeter/submillimeter Array (ALMA) and presented at a news conference at the 241st meeting of the American Astronomical Society (AAS), could help researchers understand the nature and evolution of massive stars and how hydrogen masks form in space.
MWC 349A is located about 3,900 light-years from Earth, In the constellation Cygnus, its unique characteristics make it a point of interest for scientific research in the optical, infrared, and radio wavelengths.
This massive star, about 30 times the mass of the Sun, It is one of the brightest radio sources in the sky and one of the few objects known to use hydrogen devices. These measuring devices amplify radio wave emissions, making it easier to study processes that are normally too small to see. This unique feature allowed the scientists to map out the disk of MWC 349A in full detail for the first time.
“Maser is like a natural laser,” he explains. It’s a statement Serena Prasad, research assistant at the Harvard-Smithsonian Center for Astrophysics (CfA) and lead author of the paper. This is a region of outer space that emits a bright kind of light. We can see that light and trace it back to its source, which brings us one step closer to discovering what’s really going on.”
Harnessing the resolving power of ALMA Band 6, developed by the National Radio Astronomy Observatory of the US National Science Foundation (NRAO), The team was able to use the scanners to discover previously unseen structures in the star’s immediate vicinity.
Qizhou Zhang, CfA’s chief astrophysicist and principal investigator on the project, explains that they used hydrogen-generated lasers to probe the physical and dynamical structures of the gas surrounding MWC 349A. It revealed a flat disk of gas with a diameter of 50 international units, about the size of the solar system“which confirms the near-horizontal disk structure of the star. We also found a fast-moving jet component hidden within the winds flowing away from the star,” he adds.
observed plane It shoots material away from the star at a breakneck speed of 500 kilometers per second. According to the researchers, a jet moving at this speed is likely to be triggered by magnetic force. In the case of MWC 349A, that could be a force Dynamic magnetic wind A type of wind whose movement is determined by the interaction between a star’s magnetic field and the gases in its surrounding disk.
“Based on our previous knowledge of MWC 349A, the star was surrounded by a rotating disk and photovapor wind. Strong evidence of an additional parallel jet has not yet been observed in this system,” says Prasad. We know for sure where it came from or how it is produced, it is possible that a magnetodynamic wind is producing the jet, in which case the magnetic field is responsible for expelling the rotating material out of the system. “
He notes, “This could help us better understand the dynamics of the disc winds in MWC 349A, and the interaction between stellar discs, winds, and jets in other stellar systems.”
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