Jet formation in counterstreaming collisionless plasmas

Y. Kuramitsu; Y. Sakawa; J. N. Waugh; C. D. Gregory; T. Morita; S. Dono; H. Aoki; H. Tanji; B. Loupias; M. Koenig; N. Woolsey; H. Takabe

doi:10.1088/0004-637X/707/2/L137

Jet formation in counterstreaming collisionless plasmas

Y. Kuramitsu, Y. Sakawa, J. N. Waugh, C. D. Gregory, T. Morita, S. Dono, H. Aoki, H. Tanji, B. Loupias, M. Koenig, N. Woolsey, H. Takabe

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Plasma jet formation was observed in counterstreaming plasmas in a laboratory experiment. In order to model an ambient plasma of astrophysical jets, the counterstreaming plasmas were created by irradiating a double CH-plane target with a high-power laser system. Since the mean free paths of the ions in terms of the counterstreaming motion were larger than the scale length of the experiment, the two-stream interaction of the plasmas was essentially collisionless. The time evolution of the jet collimation was obtained over several shots with different timing by shadowgraphy. When a single CH-plane target was irradiated, no jet collimation was observed. The counterstreaming plasma as an ambient plasma is essential for the jet plasma to collimate.

Original language	English
Pages (from-to)	L137-L141
Journal	Astrophysical Journal
Volume	707
Issue number	2 PART 2
DOIs	https://doi.org/10.1088/0004-637X/707/2/L137
Publication status	Published - 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1088/0004-637X/707/2/L137

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title = "Jet formation in counterstreaming collisionless plasmas",

abstract = "Plasma jet formation was observed in counterstreaming plasmas in a laboratory experiment. In order to model an ambient plasma of astrophysical jets, the counterstreaming plasmas were created by irradiating a double CH-plane target with a high-power laser system. Since the mean free paths of the ions in terms of the counterstreaming motion were larger than the scale length of the experiment, the two-stream interaction of the plasmas was essentially collisionless. The time evolution of the jet collimation was obtained over several shots with different timing by shadowgraphy. When a single CH-plane target was irradiated, no jet collimation was observed. The counterstreaming plasma as an ambient plasma is essential for the jet plasma to collimate.",

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T1 - Jet formation in counterstreaming collisionless plasmas

AU - Kuramitsu, Y.

AU - Sakawa, Y.

AU - Waugh, J. N.

AU - Gregory, C. D.

AU - Morita, T.

AU - Dono, S.

AU - Aoki, H.

AU - Tanji, H.

AU - Loupias, B.

AU - Koenig, M.

AU - Woolsey, N.

AU - Takabe, H.

PY - 2009

Y1 - 2009

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AB - Plasma jet formation was observed in counterstreaming plasmas in a laboratory experiment. In order to model an ambient plasma of astrophysical jets, the counterstreaming plasmas were created by irradiating a double CH-plane target with a high-power laser system. Since the mean free paths of the ions in terms of the counterstreaming motion were larger than the scale length of the experiment, the two-stream interaction of the plasmas was essentially collisionless. The time evolution of the jet collimation was obtained over several shots with different timing by shadowgraphy. When a single CH-plane target was irradiated, no jet collimation was observed. The counterstreaming plasma as an ambient plasma is essential for the jet plasma to collimate.

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