Two Bipolar Stellar Jets Observed from Young Stars astronomy space science
on Cerro Pachón on the edge of the Chilean Andes, astronomers have captured images of two wiggling stellar jets: MHO 2147 and MHO 1502.
“Furthermore, they are usually associated with the earliest stages of stellar formation, when the incipient proto-stellar object is deeply embedded within a dense core of dust and molecular gas.” “The shape of a non-straight or wandering jet axis may be related to some characteristics of the central object. For example, reflection-symmetric wiggles may be due to the orbital motion of the jet source that belongs to a binary system, whereas the precession of the jet axis could produce a point-symmetric S-shaped jet induced by a tidal effect caused by a companion star in an orbit not coplanar to the disk.
is roughly 10,000 light-years from Earth, and lies in the Galactic plane, close to the boundary between the constellations of Sagittarius and Ophiuchus.In the case of MHO 2147, the young central star — namedThe sinuous shape of the jet is caused because its direction has changed over time, tracing out a gentle curve on either side of the central star.
“Our observations suggest that IRAS 17527-2439 could belong to a triple star system separated by more than 300 billion km .”
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