Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/35418
Title: Laboratory unraveling of matter accretion in young stars
Authors: Revet, G.
Chen, S.N.
Bonito, Rosaria
Khiar, B.
Filippov, E.
Argiroffi, Costanza
Higginson, D.P.
Orlando, Salvatore
Béard, J.
Blecher, M.
Borghesi, M.
Burdonov, K.
Khaghani, D.
Naughton, K.
Pépin, H.
Portugall, O.
Riquier, R.
Rodriguez, Rafael 
Ryazantsev, S.N.
Skobelev, I. Yu
Soloviev, A.
Willi, Oswald
Pikuz, S.
Ciardi, A.
Fuchs, J.
UNESCO Clasification: 21 Astronomía Astrofísica
Keywords: T-Tauri Stars
X-Ray-Emission
Electron Thermal Conduction
Magnetic-Field
Radiative Shocks, et al
Issue Date: 2017
Journal: Science advances 
Abstract: Accretion dynamics in the formation of young stars is still a matter of debate because of limitations in observations and modeling. Through scaled laboratory experiments of collimated plasma accretion onto a solid in the presence of a magnetic field, we open a first window on this phenomenon by tracking, with spatial and temporal resolution, the dynamics of the system and simultaneously measuring multiband emissions. We observe in these experiments that matter, upon impact, is ejected laterally from the solid surface and then refocused by the magnetic field toward the incoming stream. This ejected matter forms a plasma shell that envelops the shocked core, reducing escaped x-ray emission. This finding demonstrates one possible structure reconciling current discrepancies between mass accretion rates derived from x-ray and optical observations, respectively.
URI: http://hdl.handle.net/10553/35418
ISSN: 2375-2548
DOI: 10.1126/sciadv.1700982
Source: Science advances [ISSN 2375-2548], v. 3 (11), (e1700982)
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