skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Laboratory measurements of resistivity in warm dense plasmas relevant to the microphysics of brown dwarfs

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms9742· OSTI ID:1304822
 [1];  [1];  [2];  [1];  [3];  [4];  [5];  [6];  [5];  [5];  [7];  [1];  [4];  [8];  [9];  [1];  [4]; ORCiD logo [3];  [3];  [3]
  1. STFC Rutherford Appleton Lab., Didcot (United Kingdom)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); ELI Beamlines, Prague (Czech Republic); Univ. of Nevada, Reno, NV (United States)
  3. Univ. of York, Heslington York (United Kingdom)
  4. Queen's Univ. Belfast, Belfast (United Kingdom)
  5. Instituto Nazionale di Ottica, Pisa (Italy)
  6. Univ. of Oxford, Oxford (United Kingdom)
  7. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); ELI Beamlines, Prague (Czech Republic); Instituto Nazionale di Ottica, Pisa (Italy)
  8. Univ. of Nevada, Reno, NV (United States)
  9. STFC Rutherford Appleton Lab., Didcot (United Kingdom); Univ. of York, Heslington York (United Kingdom)

Since the observation of the first brown dwarf in 1995, numerous studies have led to a better understanding of the structures of these objects. Here we present a method for studying material resistivity in warm dense plasmas in the laboratory, which we relate to the microphysics of brown dwarfs through viscosity and electron collisions. Here we use X-ray polarimetry to determine the resistivity of a sulphur-doped plastic target heated to Brown Dwarf conditions by an ultra-intense laser. The resistivity is determined by matching the plasma physics model to the atomic physics calculations of the measured large, positive, polarization. Furthermore, the inferred resistivity is larger than predicted using standard resistivity models, suggesting that these commonly used models will not adequately describe the resistivity of warm dense plasma related to the viscosity of brown dwarfs.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
Science and Technology Facilities Council (STFC) (United Kingdom); USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1304822
Report Number(s):
LA-UR-14-21902
Journal Information:
Nature Communications, Vol. 6; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

References (38)

Theory of Low-Mass Stars and Substellar Objects journal September 2000
Pycnonuclear reactions in dense astrophysical and fusion plasmas journal July 1999
The physical properties of extra-solar planets journal December 2009
Transport Phenomena in a Completely Ionized Gas journal March 1953
An electron conductivity model for dense plasmas journal January 1984
Fast-electron transport in high-intensity short-pulse laser - solid experiments journal May 1997
Modelling electron transport for fast ignition journal November 2007
The science of brown dwarfs journal April 1993
An Equation of State for Low-Mass Stars and Giant Planets journal July 1995
Modeling Astrophysical Phenomena in the Laboratory with Intense Lasers journal May 1999
X-ray line polarization spectroscopy to study hot electron transport in ultra-short laser produced plasma journal May 2006
Resistivity of a Simple Metal from Room Temperature to 10 6 K journal November 1988
Electrical conductivity of dense copper and aluminum plasmas journal May 1998
Exploding aluminum wire expansion rate with 1–4.5 kA per wire journal May 2000
Activity in Very Cool Stars: Magnetic Dissipation in Late M and L Dwarf Atmospheres journal May 2002
Physical Parameters of Two Very Cool T Dwarfs journal February 2007
The Physical Properties of four ∼600 k t Dwarfs journal April 2009
THE 0.8-14.5 μm SPECTRA OF MID-L TO MID-T DWARFS: DIAGNOSTICS OF EFFECTIVE TEMPERATURE, GRAIN SEDIMENTATION, GAS TRANSPORT, AND SURFACE GRAVITY journal August 2009
Properties of the t8.5 Dwarf wolf 940 b journal August 2010
Analysis of x-ray polarization to determine the three-dimensionally anisotropic velocity distributions of hot electrons in plasma produced by ultrahigh intensity lasers journal February 2007
Ohmic Dissipation in the Interiors of hot Jupiters journal September 2012
X-ray line polarization of He-like Si satellite spectra in plasmas driven by high-intensity ultrashort pulsed lasers journal May 2004
Polarization properties of the Ly-α line from sulphur plasmas driven by high-intensity, ultrashort-duration laser pulses 1 This article is part of a Special Issue on the 10th International Colloquium on Atomic Spectra and Oscillator Strengths for Astrophysical and Laboratory Plasmas. journal May 2011
Absorption of ultrashort, ultra-intense laser light by solids and overdense plasmas journal January 1997
A study of picosecond laser–solid interactions up to 10 19 W cm −2 journal February 1997
Universal scaling of the electron distribution function in one-dimensional simulations of relativistic laser-plasma interactions journal October 2009
Precision X-ray spectroscopy of intense laser-plasma interactions journal June 2011
How wrong is collisional Monte Carlo modeling of fast electron transport in high-intensity laser-solid interactions? journal January 2002
Erratum to “X-ray line polarization spectroscopy to study hot electron transport in ultra-short laser produced plasma” journal September 2006
Magnetic focusing and trapping of high-intensity laser-generated fast electrons at the rear of solid targets journal May 1999
Hot-Electron Temperature and Laser-Light Absorption in Fast Ignition journal January 2009
Guiding of Relativistic Electron Beams in Solid Targets by Resistively Controlled Magnetic Fields journal February 2009
Measurements of Electron Transport in Foils Irradiated with a Picosecond Time Scale Laser Pulse journal May 2011
Annular Fast Electron Transport in Silicon Arising from Low-Temperature Resistivity journal August 2013
Electron distribution anisotropy in laser-produced plasmas from x-ray line polarization measurements journal January 1992
Resistive Collimation of Electron Beams in Laser-Produced Plasmas journal July 2003
Polarization of He α Radiation due to Anisotropy of Fast-Electron Transport in Ultraintense-Laser-Produced Plasmas journal September 2007
The physical properties of extrasolar planets text January 2010

Cited By (1)

Ambipolar field role in formation of electron distribution function in gas discharge plasma journal November 2017