Journal Article

Magnetized Jet from a Massive Protostar

Carrasco-González, Carlos, Martí, Josep, Anglada, Guillem, Rodríguez, Luis F, Torrelles, José M, Osorio, Mayra

2010

نظرة عامة

Synchrotron emission is commonly found in relativistic jets from active galactic nuclei (AGNs) and microquasars, but so far its presence in jets from young stellar objects (YSOs) has not been proved. Here, we present evidence of polarized synchrotron emission arising from the jet of a YSO. The apparent magnetic field, with strength of approximately 0.2 milligauss, is parallel to the jet axis, and the polarization degree increases toward the jet edges, as expected for a confining helical magnetic field configuration. These characteristics are similar to those found in AGN jets, hinting at a common origin of all astrophysical jets.

• الناشر: American Association for the Advancement of Science
• موضوع: Astronomy / Collimation / Confining / Earth, ocean, space / Electron emission / Electrons / Emission / Emission spectra / Exact sciences and technology / Helical / Jets / Magnetic fields / Microquasars / Origins / Pre-main sequence objects, young stellar objects (yso's) and protostars (t tauri stars, orion population, herbig-haro objects, bok globules, bipolar outflows, cometary nebulae, etc.) / Protostars / Radio spectrum / Relativistic jets / Spectral index / Stars / Synchrotrons