Studying astrophysical collisionless shocks with counterstreaming plasmas from high power lasers

Hye Sook Park, D. D. Ryutov, J. S. Ross, N. L. Kugland, S. H. Glenzer, C. Plechaty, S. M. Pollaine, B. A. Remington, A. Spitkovsky, L. Gargate, G. Gregori, A. Bell, C. Murphy, Y. Sakawa, Y. Kuramitsu, Taichi Morita, H. Takabe, D. H. Froula, G. Fiksel, F. MiniatiM. Koenig, A. Ravasio, A. Pelka, E. Liang, N. Woolsey, C. C. Kuranz, R. P. Drake, M. J. Grosskopf

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

Collisions of high Mach number flows occur frequently in astrophysics, and the resulting shock waves are responsible for the properties of many astrophysical phenomena, such as supernova remnants, Gamma Ray Bursts and jets from Active Galactic Nuclei. Because of the low density of astrophysical plasmas, the mean free path due to Coulomb collisions is typically very large. Therefore, most shock waves in astrophysics are "collisionless", since they form due to plasma instabilities and self-generated magnetic fields. Laboratory experiments at the laser facilities can achieve the conditions necessary for the formation of collisionless shocks, and will provide a unique avenue for studying the nonlinear physics of collisionless shock waves. We are performing a series of experiments at the Omega and Omega-EP lasers, in Rochester, NY, with the goal of generating collisionless shock conditions by the collision of two high-speed plasma flows resulting from laser ablation of solid targets using ∼10 16 W/cm 2 laser irradiation. The experiments will aim to answer several questions of relevance to collisionless shock physics: the importance of the electromagnetic filamentation (Weibel) instabilities in shock formation, the self-generation of magnetic fields in shocks, the influence of external magnetic fields on shock formation, and the signatures of particle acceleration in shocks. Our first experiments using Thomson scattering diagnostics studied the plasma state from a single foil and from double foils whose flows collide "head-on" Our data showed that the flow velocity and electron density were 10 8 cm/s and 10 19 cm -3, respectively, where the Coulomb mean free path is much larger than the size of the interaction region. Simulations of our experimental conditions show that weak Weibel mediated current filamentation and magnetic field generation were likely starting to occur. This paper presents the results from these first Omega experiments.

Original languageEnglish
Pages (from-to)38-45
Number of pages8
JournalHigh Energy Density Physics
Volume8
Issue number1
DOIs
Publication statusPublished - Mar 1 2012
Externally publishedYes

Fingerprint

high power lasers
astrophysics
shock
shock waves
magnetic fields
mean free path
head flow
foils
Weibel instability
lasers
Coulomb collisions
physics
collisions
Thomson scattering
magnetohydrodynamic stability
particle acceleration
supernova remnants
magnetohydrodynamic flow
gamma ray bursts
Mach number

All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics

Cite this

Park, H. S., Ryutov, D. D., Ross, J. S., Kugland, N. L., Glenzer, S. H., Plechaty, C., ... Grosskopf, M. J. (2012). Studying astrophysical collisionless shocks with counterstreaming plasmas from high power lasers. High Energy Density Physics, 8(1), 38-45. https://doi.org/10.1016/j.hedp.2011.11.001

Studying astrophysical collisionless shocks with counterstreaming plasmas from high power lasers. / Park, Hye Sook; Ryutov, D. D.; Ross, J. S.; Kugland, N. L.; Glenzer, S. H.; Plechaty, C.; Pollaine, S. M.; Remington, B. A.; Spitkovsky, A.; Gargate, L.; Gregori, G.; Bell, A.; Murphy, C.; Sakawa, Y.; Kuramitsu, Y.; Morita, Taichi; Takabe, H.; Froula, D. H.; Fiksel, G.; Miniati, F.; Koenig, M.; Ravasio, A.; Pelka, A.; Liang, E.; Woolsey, N.; Kuranz, C. C.; Drake, R. P.; Grosskopf, M. J.

In: High Energy Density Physics, Vol. 8, No. 1, 01.03.2012, p. 38-45.

Research output: Contribution to journalArticle

Park, HS, Ryutov, DD, Ross, JS, Kugland, NL, Glenzer, SH, Plechaty, C, Pollaine, SM, Remington, BA, Spitkovsky, A, Gargate, L, Gregori, G, Bell, A, Murphy, C, Sakawa, Y, Kuramitsu, Y, Morita, T, Takabe, H, Froula, DH, Fiksel, G, Miniati, F, Koenig, M, Ravasio, A, Pelka, A, Liang, E, Woolsey, N, Kuranz, CC, Drake, RP & Grosskopf, MJ 2012, 'Studying astrophysical collisionless shocks with counterstreaming plasmas from high power lasers', High Energy Density Physics, vol. 8, no. 1, pp. 38-45. https://doi.org/10.1016/j.hedp.2011.11.001
Park, Hye Sook ; Ryutov, D. D. ; Ross, J. S. ; Kugland, N. L. ; Glenzer, S. H. ; Plechaty, C. ; Pollaine, S. M. ; Remington, B. A. ; Spitkovsky, A. ; Gargate, L. ; Gregori, G. ; Bell, A. ; Murphy, C. ; Sakawa, Y. ; Kuramitsu, Y. ; Morita, Taichi ; Takabe, H. ; Froula, D. H. ; Fiksel, G. ; Miniati, F. ; Koenig, M. ; Ravasio, A. ; Pelka, A. ; Liang, E. ; Woolsey, N. ; Kuranz, C. C. ; Drake, R. P. ; Grosskopf, M. J. / Studying astrophysical collisionless shocks with counterstreaming plasmas from high power lasers. In: High Energy Density Physics. 2012 ; Vol. 8, No. 1. pp. 38-45.
@article{3b2da37c87c1413192c2af7461ad699a,
title = "Studying astrophysical collisionless shocks with counterstreaming plasmas from high power lasers",
abstract = "Collisions of high Mach number flows occur frequently in astrophysics, and the resulting shock waves are responsible for the properties of many astrophysical phenomena, such as supernova remnants, Gamma Ray Bursts and jets from Active Galactic Nuclei. Because of the low density of astrophysical plasmas, the mean free path due to Coulomb collisions is typically very large. Therefore, most shock waves in astrophysics are {"}collisionless{"}, since they form due to plasma instabilities and self-generated magnetic fields. Laboratory experiments at the laser facilities can achieve the conditions necessary for the formation of collisionless shocks, and will provide a unique avenue for studying the nonlinear physics of collisionless shock waves. We are performing a series of experiments at the Omega and Omega-EP lasers, in Rochester, NY, with the goal of generating collisionless shock conditions by the collision of two high-speed plasma flows resulting from laser ablation of solid targets using ∼10 16 W/cm 2 laser irradiation. The experiments will aim to answer several questions of relevance to collisionless shock physics: the importance of the electromagnetic filamentation (Weibel) instabilities in shock formation, the self-generation of magnetic fields in shocks, the influence of external magnetic fields on shock formation, and the signatures of particle acceleration in shocks. Our first experiments using Thomson scattering diagnostics studied the plasma state from a single foil and from double foils whose flows collide {"}head-on{"} Our data showed that the flow velocity and electron density were 10 8 cm/s and 10 19 cm -3, respectively, where the Coulomb mean free path is much larger than the size of the interaction region. Simulations of our experimental conditions show that weak Weibel mediated current filamentation and magnetic field generation were likely starting to occur. This paper presents the results from these first Omega experiments.",
author = "Park, {Hye Sook} and Ryutov, {D. D.} and Ross, {J. S.} and Kugland, {N. L.} and Glenzer, {S. H.} and C. Plechaty and Pollaine, {S. M.} and Remington, {B. A.} and A. Spitkovsky and L. Gargate and G. Gregori and A. Bell and C. Murphy and Y. Sakawa and Y. Kuramitsu and Taichi Morita and H. Takabe and Froula, {D. H.} and G. Fiksel and F. Miniati and M. Koenig and A. Ravasio and A. Pelka and E. Liang and N. Woolsey and Kuranz, {C. C.} and Drake, {R. P.} and Grosskopf, {M. J.}",
year = "2012",
month = "3",
day = "1",
doi = "10.1016/j.hedp.2011.11.001",
language = "English",
volume = "8",
pages = "38--45",
journal = "High Energy Density Physics",
issn = "1574-1818",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Studying astrophysical collisionless shocks with counterstreaming plasmas from high power lasers

AU - Park, Hye Sook

AU - Ryutov, D. D.

AU - Ross, J. S.

AU - Kugland, N. L.

AU - Glenzer, S. H.

AU - Plechaty, C.

AU - Pollaine, S. M.

AU - Remington, B. A.

AU - Spitkovsky, A.

AU - Gargate, L.

AU - Gregori, G.

AU - Bell, A.

AU - Murphy, C.

AU - Sakawa, Y.

AU - Kuramitsu, Y.

AU - Morita, Taichi

AU - Takabe, H.

AU - Froula, D. H.

AU - Fiksel, G.

AU - Miniati, F.

AU - Koenig, M.

AU - Ravasio, A.

AU - Pelka, A.

AU - Liang, E.

AU - Woolsey, N.

AU - Kuranz, C. C.

AU - Drake, R. P.

AU - Grosskopf, M. J.

PY - 2012/3/1

Y1 - 2012/3/1

N2 - Collisions of high Mach number flows occur frequently in astrophysics, and the resulting shock waves are responsible for the properties of many astrophysical phenomena, such as supernova remnants, Gamma Ray Bursts and jets from Active Galactic Nuclei. Because of the low density of astrophysical plasmas, the mean free path due to Coulomb collisions is typically very large. Therefore, most shock waves in astrophysics are "collisionless", since they form due to plasma instabilities and self-generated magnetic fields. Laboratory experiments at the laser facilities can achieve the conditions necessary for the formation of collisionless shocks, and will provide a unique avenue for studying the nonlinear physics of collisionless shock waves. We are performing a series of experiments at the Omega and Omega-EP lasers, in Rochester, NY, with the goal of generating collisionless shock conditions by the collision of two high-speed plasma flows resulting from laser ablation of solid targets using ∼10 16 W/cm 2 laser irradiation. The experiments will aim to answer several questions of relevance to collisionless shock physics: the importance of the electromagnetic filamentation (Weibel) instabilities in shock formation, the self-generation of magnetic fields in shocks, the influence of external magnetic fields on shock formation, and the signatures of particle acceleration in shocks. Our first experiments using Thomson scattering diagnostics studied the plasma state from a single foil and from double foils whose flows collide "head-on" Our data showed that the flow velocity and electron density were 10 8 cm/s and 10 19 cm -3, respectively, where the Coulomb mean free path is much larger than the size of the interaction region. Simulations of our experimental conditions show that weak Weibel mediated current filamentation and magnetic field generation were likely starting to occur. This paper presents the results from these first Omega experiments.

AB - Collisions of high Mach number flows occur frequently in astrophysics, and the resulting shock waves are responsible for the properties of many astrophysical phenomena, such as supernova remnants, Gamma Ray Bursts and jets from Active Galactic Nuclei. Because of the low density of astrophysical plasmas, the mean free path due to Coulomb collisions is typically very large. Therefore, most shock waves in astrophysics are "collisionless", since they form due to plasma instabilities and self-generated magnetic fields. Laboratory experiments at the laser facilities can achieve the conditions necessary for the formation of collisionless shocks, and will provide a unique avenue for studying the nonlinear physics of collisionless shock waves. We are performing a series of experiments at the Omega and Omega-EP lasers, in Rochester, NY, with the goal of generating collisionless shock conditions by the collision of two high-speed plasma flows resulting from laser ablation of solid targets using ∼10 16 W/cm 2 laser irradiation. The experiments will aim to answer several questions of relevance to collisionless shock physics: the importance of the electromagnetic filamentation (Weibel) instabilities in shock formation, the self-generation of magnetic fields in shocks, the influence of external magnetic fields on shock formation, and the signatures of particle acceleration in shocks. Our first experiments using Thomson scattering diagnostics studied the plasma state from a single foil and from double foils whose flows collide "head-on" Our data showed that the flow velocity and electron density were 10 8 cm/s and 10 19 cm -3, respectively, where the Coulomb mean free path is much larger than the size of the interaction region. Simulations of our experimental conditions show that weak Weibel mediated current filamentation and magnetic field generation were likely starting to occur. This paper presents the results from these first Omega experiments.

UR - http://www.scopus.com/inward/record.url?scp=82955189321&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=82955189321&partnerID=8YFLogxK

U2 - 10.1016/j.hedp.2011.11.001

DO - 10.1016/j.hedp.2011.11.001

M3 - Article

AN - SCOPUS:82955189321

VL - 8

SP - 38

EP - 45

JO - High Energy Density Physics

JF - High Energy Density Physics

SN - 1574-1818

IS - 1

ER -