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  • Journal article
    Beth A, Garnier P, Toublanc D, Dandouras I, Mazelle C, Kotova Aet al., 2014,

    Modeling the satellite particle population in the planetary exospheres: Application to Earth, Titan and Mars

    , Icarus, Vol: 227, Pages: 21-36, ISSN: 0019-1035
  • Journal article
    Masters A, Phan TD, Badman SV, Hasegawa H, Fujimoto M, Russell CT, Coates AJ, Dougherty MKet al., 2014,

    The plasma depletion layer in Saturn's magnetosheath

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 119, Pages: 121-130, ISSN: 2169-9380
  • Journal article
    Weiss Z, Steers EBM, Pickering JC, Hoffmann V, Mushtaq Set al., 2014,

    Excitation of higher levels of singly charged copper ions in argon and neon glow discharges

    , JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, Vol: 29, Pages: 2256-2261, ISSN: 0267-9477
  • Conference paper
    Whiteside BJ, Brown P, Beek TJ, Horbury TS, Carr CMet al., 2014,

    TID Response of a Hybrid AMR Vector Magnetometer

    , IEEE Radiation Effects Data Workshop (REDW) is part of the Nuclear and Space Radiation Effect Conference (NSREC), Publisher: IEEE
  • Conference paper
    Fox N, Green P, Brindley H, Russell J, Smith D, Lobb D, Cutter M, Barnes Aet al., 2014,

    TRACEABLE RADIOMETRY UNDERPINNING TERRESTRIAL AND HELIO-STUDIES (TRUTHS): A BENCMARK MISSION FOR CLIMATE

    , International Conference on Space Optics (ICSO), Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
  • Book chapter
    Krasnoselskikh V, Balikhin M, Walker SN, Schwartz S, Sundkvist D, Lobzin V, Gedalin M, Bale SD, Mozer F, Soucek J, Hobara Y, Comisel Het al., 2014,

    The Dynamic Quasiperpendicular Shock: Cluster Discoveries

    , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 459-522, ISBN: 978-1-4899-7412-9
  • Book chapter
    Alexandrova O, Chen CHK, Sorriso-Valvo L, Horbury TS, Bale SDet al., 2014,

    Solar Wind Turbulence and the Role of Ion Instabilities

    , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 25-63, ISBN: 978-1-4899-7412-9
  • Journal article
    Nakamura R, Plaschke F, Teubenbacher R, Giner L, Baumjohann W, Magnes W, Steller M, Torbert RB, Vaith H, Chutter M, Fornacon K-H, Glassmeier K-H, Carr Cet al., 2014,

    Interinstrument calibration using magnetic field data from the flux-gate magnetometer (FGM) and electron drift instrument (EDI) onboard Cluster

    , GEOSCIENTIFIC INSTRUMENTATION METHODS AND DATA SYSTEMS, Vol: 3, Pages: 1-11, ISSN: 2193-0856
  • Book chapter
    Ghavamian P, Schwartz SJ, Mitchell J, Masters A, Laming JMet al., 2014,

    Electron-Ion Temperature Equilibration in Collisionless Shocks: The Supernova Remnant-Solar Wind Connection

    , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 557-587, ISBN: 978-1-4899-7412-9
  • Book chapter
    Schwartz SJ, Zweibel EG, Goldman M, 2014,

    Microphysics in Astrophysical Plasmas

    , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 5-23, ISBN: 978-1-4899-7412-9
  • Book chapter
    Mueller-Wodarg ICF, Griffith CA, Lellouch E, Cravens TEet al., 2014,

    TITAN Interior, Surface, Atmosphere, and Space Environment Introduction

    , TITAN: INTERIOR, SURFACE, ATMOSPHERE, AND SPACE ENVIRONMENT, Editors: MullerWodarg, Griffith, Lellouch, Cravens, Publisher: CAMBRIDGE UNIV PRESS, Pages: 1-9
  • Journal article
    O'Connor FM, Johnson CE, Morgenstern O, Abraham NL, Braesicke P, Dalvi M, Folberth GA, Sanderson MG, Telford PJ, Voulgarakis A, Young PJ, Zeng G, Collins WJ, Pyle JAet al., 2014,

    Evaluation of the new UKCA climate-composition model - Part 2: The Troposphere

    , GEOSCIENTIFIC MODEL DEVELOPMENT, Vol: 7, Pages: 41-91, ISSN: 1991-959X
  • Book chapter
    Balogh A, Bykov A, Cargill P, Dendy R, de Wit TD, Raymond Jet al., 2014,

    Microphysics of Cosmic Plasmas: Background, Motivation and Objectives

    , MICROPHYSICS OF COSMIC PLASMAS, Editors: Balogh, Bykov, Cargill, Dendy, DeWit, Raymond, Publisher: SPRINGER, Pages: 1-4, ISBN: 978-1-4899-7412-9
  • Journal article
    Mushtaq S, Steers EBM, Pickering JC, Putyera Ket al., 2013,

    Selective and non-selective excitation/ionization processes in analytical glow discharges: excitation of the ionic spectra in argon/helium mixed plasmas

    , Journal of Analytical Atomic Spectrometry

    The increasing use of mixed gases, including helium mixtures, in glow discharge mass spectrometry has led to a need to understand the resulting signal enhancements due to changes in excitation and ionization processes. To understand more fully these processes in glow discharge, we have carried out complementary optical emission spectrometry experiments. The presence of added gases in the plasma gas can cause major changes in the number density of plasma gas ions and metastable atoms and so affects the intensities of spectral lines involving selective and non-selective excitation & ionization processes. We report the results of an experimental investigation on the effect of Ar/He mixed plasmas on the relative emission intensities of various analyte materials including copper, iron and titanium. Selective and non-selective excitation processes which are mainly dependent on the nature of the plasma gas and analyte material are observed and discussed.
  • Journal article
    Ruffoni MP, Allende Prieto C, Nave G, Pickering JCet al., 2013,

    INFRARED LABORATORY OSCILLATOR STRENGTHS OF Fe I IN THE <i>H</i>-BAND

    , ASTROPHYSICAL JOURNAL, Vol: 779, ISSN: 0004-637X
  • Journal article
    Maruca BA, Bale SD, Sorriso-Valvo L, Kasper JC, Stevens MLet al., 2013,

    Collisional Thermalization of Hydrogen and Helium in Solar-Wind Plasma

    , PHYSICAL REVIEW LETTERS, Vol: 111, ISSN: 0031-9007
  • Journal article
    Hietala H, Plaschke F, 2013,

    On the generation of magnetosheath high-speed jets by bow shock ripples

    , Journal of Geophysical Research: Space Physics, Vol: 118, Pages: 7237-7245, ISSN: 2169-9380

    [1] The terrestrial magnetosheath is embedded with coherent high‒speed jets of about 1RE in scale, predominantly during quasi‒radial interplanetary magnetic field (IMF). When these high dynamic pressure (Pdyn) jets hit the magnetopause, they cause large indentations and further magnetospheric effects. The source of these jets has remained controversial. One of the proposed mechanisms is based on ripples of the quasi‒parallel bow shock. In this paper, we combine for the first time, 4 years of subsolar magnetosheath observations from the Time History of Events and Macroscale Interactions during Substorms mission and corresponding NASA/OMNI solar wind conditions with model calculations of a rippled bow shock. Concentrating on the magnetosheath close to the shock during intervals when the angle between the IMF and the Sun‒Earth line was small, we find that (1) 97% of the observed jets can be produced by local ripples of the shock under the observed upstream conditions; (2) the coherent jets form a significant fraction of the high Pdyn tail of the magnetosheath flow distribution; (3) the magnetosheath Pdyn distribution matches the flow from a bow shock with ripples that have a dominant amplitude to wavelength ratio of about 9% (∼0.1RE/1RE) and are present ∼12% of the time at any given location.
  • Journal article
    Mozer FS, Bale SD, Bonnell JW, Chaston CC, Roth I, Wygant Jet al., 2013,

    Megavolt Parallel Potentials Arising from Double-Layer Streams in the Earth's Outer Radiation Belt

    , PHYSICAL REVIEW LETTERS, Vol: 111, ISSN: 0031-9007
  • Conference paper
    Fox C, Pickering JC, Beeby R, Murray JE, Last A, Green PDet al., 2013,

    Studies of the far IR water vapour continuum from CAVIAR and RHUBC campaigns using TAFTS

    We report results from the participation of the Imperial College TAFTS instrument in the CAVIAR and RHUBC field campaigns, validating a derived water vapor continuum parameterization in the far-IR spectral region. © OSA 2013.
  • Conference paper
    Pickering JC, Ruffoni M, Liggins F, Thorne APet al., 2013,

    Accurate laboratory atomic and molecular data for astrophysics applications by high resolution Fourier transform spectrometry

    Accurate high resolution atomic and molecular data are required for interpretation of many astrophysical spectra. The Imperial College London laboratory astrophysics program using high resolution Fourier Transform spectrometry is described. © 2013 Optical Society of America.
  • Conference paper
    Fox C, Pickering JC, Beeby R, Murray JE, Last A, Green PDet al., 2013,

    Studies of the far IR water vapour continuum from CAVIAR and RHUBC campaigns using TAFTS

    We report results from the participation of the Imperial College TAFTS instrument in the CAVIAR and RHUBC field campaigns, validating a derived water vapor continuum parameterization in the far-IR spectral region. © OSA 2013.
  • Conference paper
    Fox C, Pickering JC, Beeby R, Murray JE, Last A, Green PDet al., 2013,

    Studies of the far IR water vapour continuum from CAVIAR and RHUBC campaigns using TAFTS

    We report results from the participation of the Imperial College TAFTS instrument in the CAVIAR and RHUBC field campaigns, validating a derived water vapor continuum parameterization in the far-IR spectral region. © OSA 2013.
  • Journal article
    Mitchell JJ, Schwartz SJ, 2013,

    Nonlocal electron heating at the Earth's bow shock and the role of the magnetically tangent point

    , JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, Vol: 118, Pages: 7566-7575, ISSN: 2169-9380
  • Journal article
    Masters A, Stawarz L, Fujimoto M, Schwartz SJ, Sergis N, Thomsen MF, Retino A, Hasegawa H, Zieger B, Lewis GR, Coates AJ, Canu P, Dougherty MKet al., 2013,

    <i>In situ</i> observations of high-Mach number collisionless shocks in space plasmas

    , PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 55, ISSN: 0741-3335
  • Journal article
    Eastwood JP, Phan TD, Oieroset M, Shay MA, Malakit K, Swisdak M, Drake JF, Masters Aet al., 2013,

    Influence of asymmetries and guide fields on the magnetic reconnection diffusion region in collisionless space plasmas

    , PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 55, ISSN: 0741-3335
  • Journal article
    Franci L, De Pietri R, Dionysopoulou K, Rezzolla Let al., 2013,

    Dynamical bar-mode instability in rotating and magnetized relativistic stars

    , PHYSICAL REVIEW D, Vol: 88, ISSN: 1550-7998
  • Journal article
    Pudney MA, Carr CM, Schwartz SJ, Howarth SIet al., 2013,

    Near-magnetic-field scaling for verification of spacecraft equipment

    , Geoscientific Instrumentation, Methods and Data Systems, Vol: 2, Pages: 249-255, ISSN: 2193-0864

    Magnetic-field measurements are essential tothe success of many scientific space missions. Outside ofthe earth’s magnetic field the biggest potential source ofmagnetic-field contamination of these measurements is emittedby the spacecraft. Spacecraft magnetic cleanliness is enforcedthrough the application of strict ground verificationrequirements for spacecraft equipment and instruments. Dueto increasingly strict AC magnetic-field requirements, manyspacecraft units cannot be verified on the ground using existingtechniques. These measurements must instead be takenclose to the equipment under test (EUT) and then extrapolated.A traditional dipole power law of −3 (with a fieldfall-off proportional to r−3) cannot be applied at these closedistances without risk of underestimating the field emitted bythe EUT, but we demonstrate that a power law of −2 is tooconservative. We propose a compromise that uses a powerlaw of −2 up to a distance equal to 3 times the unit size, beyondwhich a dipole power law can be applied. When extrapolatingfrom a distance of 0.20 m to 1.00 m from the centre ofa 0.20 m wide EUT, we demonstrate that this method avoidsan under prediction of the field, and is at least twice as accurateas performing the extrapolation with a fixed power lawof −2.
  • Journal article
    Wicks RT, Roberts DA, Mallet A, Schekochihin AA, Horbury TS, Chen CHKet al., 2013,

    Correlations at Large Scales and the Onset of Turbulence in the Fast Solar Wind

    , The Astrophysical Journal, Vol: 778, Pages: 177-177, ISSN: 0004-637X

    We show that the scaling of structure functions of magnetic and velocity fields in a mostly highly Alfvénic fast solar wind stream depends strongly on the joint distribution of the dimensionless measures of cross helicity and residual energy. Already at very low frequencies, fluctuations that are both more balanced (cross helicity ~0) and equipartitioned (residual energy ~0) have steep structure functions reminiscent of "turbulent" scalings usually associated with the inertial range. Fluctuations that are magnetically dominated (residual energy ~−1), and so have closely anti-aligned Elsasser-field vectors, or are imbalanced (cross helicity ~1), and so have closely aligned magnetic and velocity vectors, have wide "1/f" ranges typical of fast solar wind. We conclude that the strength of nonlinear interactions of individual fluctuations within a stream, diagnosed by the degree of correlation in direction and magnitude of magnetic and velocity fluctuations, determines the extent of the 1/f region observed, and thus the onset scale for the turbulent cascade.
  • Journal article
    Wygant JR, Bonnell JW, Goetz K, Ergun RE, Mozer FS, Bale SD, Ludlam M, Turin P, Harvey PR, Hochmann R, Harps K, Dalton G, McCauley J, Rachelson W, Gordon D, Donakowski B, Shultz C, Smith C, Diaz-Aguado M, Fischer J, Heavner S, Berg P, Malsapina DM, Bolton MK, Hudson M, Strangeway RJ, Baker DN, Li X, Albert J, Foster JC, Chaston CC, Mann I, Donovan E, Cully CM, Cattell CA, Krasnoselskikh V, Kersten K, Brenneman A, Tao JBet al., 2013,

    The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission

    , SPACE SCIENCE REVIEWS, Vol: 179, Pages: 183-220, ISSN: 0038-6308
  • Journal article
    Coustenis A, Atreya S, Castillo J, Coll P, Mueller-Wodarg I, Spilker Let al., 2013,

    Surfaces, atmospheres and magnetospheres of the outer planets and their satellites and ring systems: Part IX

    , PLANETARY AND SPACE SCIENCE, Vol: 88, Pages: 1-2, ISSN: 0032-0633

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