Laboratory formation of a scaled protostellar jet by coaligned poloidal magnetic field

Yu Skobelev, I.; Ya Faenov, A.; Z., Burkley; Albertazzi, B.; Ciardi, A.; Nakatsutsumi, M.; Vinci, T.; Beard, J.; Bonito, Rosaria; Béard, J.; Billette, J.; Borghesi, M.; R., Bonito; Chen, S. N.; Cowan, T. E.; Herrmannsdoerfer, T.; T., Herrmannsdorfer; Herrmannsdörfer, T.; Higginson, D. P.; Kroll, F.; Pikuz, S. A.; Naughton, K.; L., Romagnani; C., Riconda; G., Revet; R., Riquier; H.-P., Schlenvoigt; I. Y.-U., Skobelev; M., Huarte-Espinosa; Faenov, A. Y.-A.; O., Portugall; Huarte Espinosa, M.; H., Pepin; Soloviev, A.; Frank, A.; B., Albertazzi And A. Ciardi M. Nakatsutsumi T. Vinci J. Beard R. Bonito J. Billette M. Borghesi Z. Burkley S. N. Chen T. E. Cowan T. Herrmannsdorfer D. P. Higginson F. Kroll S. A. Pikuz K.; Pépin, H.; Fuchs, J.; B., Albertazzi And A. Ciardi And M. Nakatsutsumi And T. Vinci And J. Beard And R. Bonito And J. Billette And M. Borghesi And Z. Burkley And S. N. Chen And T. E. Cowan And T. Herrmannsdorfer And D. P. Higginson And F. Kroll And S. A. Pikuz And K.

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American Association for the Advancement of Science, Science, 6207(346), p. 325-328, 2014

DOI: 10.1126/science.1259694

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Laboratory formation of a scaled protostellar jet by coaligned poloidal magnetic field

Journal article published in 2014 by I. Yu Skobelev, A. Ya Faenov, Burkley Z., B. Albertazzi, A. Ciardi

, M. Nakatsutsumi, T. Vinci, J. Beard

, Rosaria Bonito, J. Béard, J. Billette, M. Borghesi, Bonito R., S. N. Chen, T. E. Cowan and other authors.

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Abstract

Although bipolar jets are seen emerging from a wide variety of astrophysical systems, the issue of their formation and morphology beyond their launching is still under study. Our scaled laboratory experiments, representative of young stellar object outflows, reveal that stable and narrow collimation of the entire flow can result from the presence of a poloidal magnetic field whose strength is consistent with observations. The laboratory plasma becomes focused with an interior cavity. This gives rise to a standing conical shock from which the jet emerges. Following simulations of the process at the full astrophysical scale, we conclude that it can also explain recently discovered x-ray emission features observed in low-density regions at the base of protostellar jets, such as the well-studied jet HH 154.

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Laboratory formation of a scaled protostellar jet by coaligned poloidal magnetic field

Abstract