Observing two bipolar stellar jets from young stars

In space, the use of a optical system such as the 8.1 — Gemini South Telescope observed two undulating star jets : MHO 2147 and MHO 1502. The thrusters are astrophysical launchers. They are composed ofnarrow brushes materials that can travel long distances.

In regions of star formation, the molecular flows and the jets stellar are ubiquitous. Those are indicators of newly formed stars (source: statement of the main author, Leticia Ferrero, astronomer at the Universidad Nacional de Córdoba and CONICET).

When the object proto-stellar nascent is buried deep in a core of dense dust and molecular gasthese phenomena are associated with the early stages of star formation. The researchers were able to analyze this phenomenon thanks to the astronomical telescope.

The process of creating a star

The formation of a young star takes place in chain of knots with a terminal shock in an arc. Then, it spreads at a speed supersonic. In the observation of the stars, scientists can observe it with optics and infrared vision.

the magnetized disk can produce asymmetries in the projector. Note that different actions can lead to flux no rectilinearnamely the field stellar magneticwhich bends the axis of the radiation.

Another example, the symmetrical waves by reflection which may result from orbital motion from the source of launcher belonging to a binary system. The precession of the axis of the jet could produce a thruster S-shaped. In an orbit non-coplanar at the disk, a companion star can cause a tidal effect.

The two famous bipolar stellar jets

High resolution images were obtained with GSAOI and GeMS of MHO 1502 and MHO 2147. the jet MHO 1502 is located about 2000 light years from the Vela constellation. As for the other jet MHO 2147, it is located 10,000 light years from Earth, in the Galactic plane.

On MHO 2147, astrophysicists were able to observe the creation of a young star at infrared dark cloud. The uninterrupted curves of its shape suggest that the jet was sculpted by emission from its central source.

On the other hand, MHO 1502 is integrated into a totally different environment. This area is called the composition area of ​​a star.

“MHO 1502 is composed of a string of nodes bounding the undulating jet, suggesting that the driving source emitted them intermittently. »


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