What an 'oddball' star in the Cygnus cluster can teach us about how masers are made
The scientific community has been aware of MWC 349's existence since 1989 when they observed that it had,"some of the characteristics of a molecular maser source: It was extremely bright, and it varied in time, the result of sensitivity to changes in the detailed excitation processes," Ignacio Diaz Bobillo at the Center for AstrophysicsThe first is that the excited atoms produced a series of masers at a series of wavelengths from the corresponding set of hydrogen lines – some even...
No one understands why, but despite decades of searching for other hydrogen maser sources, only two other possible examples have been proposed, though they remain uncertain at best. “Our previous understanding of MWC 349A was that the star was surrounded by a rotating disk and photo-evaporating wind," Prasad continued."Strong evidence for an additional collimated jet had not yet been seen in this system." But that is what they stumbled upon this time around.
The collimated jet is streaking away from the star and its gas disk at a blistering 500km/s — at those speeds you can get from San Diego, California to Phoenix, Arizona faster than you can say"please, no, anywhere but Phoenix." Literally.
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