Dr Natasha Jeffrey

  • Research Associate (Physics and Astronomy)

Research interests

Solar physics, Plasma physics, High energy astrophysics

researcherID:


Publications

List by: Type | Date

Jump to: 2017 | 2016 | 2015 | 2014 | 2013 | 2011 | 2010
Number of items: 16.

2017

Kontar, E.P. , Yu, S., Kuznetsov, A.A., Emslie, A.G., Alcock, B., Jeffrey, N.L.S. , Melnik, V.N., Bian, N.H. and Subramanian, P. (2017) Imaging spectroscopy of solar radio burst fine structures. Nature Communications, 8, 1515. (doi:10.1038/s41467-017-01307-8) (PMID:29142220)

Casadei, D., Jeffrey, N. L.S. and Kontar, E. P. (2017) Measuring X-ray anisotropy in solar flares. Prospective stereoscopic capabilities of STIX and MiSolFA. Astronomy and Astrophysics, 606, A2. (doi:10.1051/0004-6361/201730629)

Wang, J., Simoes, P.J.A., Jeffrey, N.L.S. , Fletcher, L., Wright, P.J. and Hannah, I.G. (2017) Observations of reconnection flows in a flare on the solar disk. Astrophysical Journal Letters, 847(1), L1. (doi:10.3847/2041-8213/aa8904)

Kontar, E.P. , Perez, J.E., Harra, L.K., Kuznetsov, A.A., Emslie, A.G., Jeffrey, N.L.S. , Bian, N.H. and Dennis, B.R. (2017) Turbulent kinetic energy in the energy balance of a solar flare. Physical Review Letters, 118(15), 155101. (doi:10.1103/PhysRevLett.118.155101) (PMID:28452537)

Jeffrey, N. L.S. , Fletcher, L. and Labrosse, N. (2017) Non-gaussian velocity distributions in solar flares from extreme ultraviolet lines: a possible diagnostic of ion acceleration. Astrophysical Journal, 836(1), (doi:10.3847/1538-4357/836/1/35)

2016

Jeffrey, N. L.S. , Fletcher, L. and Labrosse, N. (2016) First evidence of non-Gaussian solar flare EUV spectral line profiles and accelerated non-thermal ion motion. Astronomy and Astrophysics, 590, A99. (doi:10.1051/0004-6361/201527986)

Li, S., Yan, Y. H., Wang, W., Chen, Z. J., Liu, D. H., Zhang, F. S. and Jeffrey, N. (2016) A new impedance matching method for an ultra-wide band and dual circularly polarised feed. Publications of the Astronomical Society of Australia, 33, e061. (doi:10.1017/pasa.2016.51)

2015

Jeffrey, N. L. S., Kontar, E. P. and Dennis, B. R. (2015) High-temperature differential emission measure and altitude variations in the temperature and density of solar flare coronal X-ray sources. Astronomy and Astrophysics, 584, A89. (doi:10.1051/0004-6361/201526665)

Kontar, E. P., Jeffrey, N. L. S., Emslie, A. G. and Bian, N. H. (2015) Collisional relaxation of electrons in a warm plasma and accelerated nonthermal electron spectra in solar flares. Astrophysical Journal, 809(1), 35. (doi:10.1088/0004-637X/809/1/35)

Jeffrey, N. L. S., Kontar, E. P., Emslie, A. G. and Bian, N. H. (2015) The collisional relaxation of electrons in hot flaring plasma and inferring the properties of solar flare accelerated electrons from X-ray observations. In: 14th Annual International Astrophysics Conference: Linear and Nonlinear Particle Energization throughout the Heliosphere and Beyond, Tampa, FL, USA, 20-24 Apr 2015, (doi:10.1088/1742-6596/642/1/012013)

2014

Jeffrey, N. L.S., Kontar, E. P., Bian, N. H. and Emslie, A. G. (2014) On the variation of solar flare coronal X-ray source sizes with energy. Astrophysical Journal, 787(1), 86. (doi:10.1088/0004-637X/787/1/86)

2013

Jeffrey, N.L.S. and Kontar, E.P. (2013) Temporal variations of x-ray solar flare loops: length, corpulence, position, temperature, plasma pressure, and spectra. Astrophysical Journal, 766(2), Art. 75. (doi:10.1088/0004-637X/766/2/75)

2011

Jeffrey, N.L.S. and Kontar, E.P. (2011) Spatially resolved hard X-ray polarization in solar flares: effects of Compton scattering and bremsstrahlung. Astronomy and Astrophysics, 536, (doi:10.1051/0004-6361/201117987)

Krucker, S., Hudson, H.S., Jeffrey, N.L.S., Battaglia, M., Kontar, E.P., Benz, A.O., Csillaghy, A. and Lin, R.P. (2011) High-resolution imaging of solar flare ribbons and its implication on the thick-target beam model. Astrophysical Journal, 739(2), p. 96. (doi:10.1088/0004-637X/739/2/96)

2010

Kontar, E.P., Hannah, I.G., Jeffrey, N.L.S. and Battaglia, M. (2010) The sub-arcsecond hard x-ray structure of loop footpoints in a solar flare. Astrophysical Journal, 717(1), pp. 250-256. (doi:10.1088/0004-637X/717/1/250)

Kontar, E.P. and Jeffrey, N.L.S. (2010) Positions and sizes of X-ray solar flare sources. Astronomy and Astrophysics, 513, (doi:10.1051/0004-6361/201014066)

This list was generated on Sun Nov 19 10:14:20 2017 GMT.
Number of items: 16.

Articles

Kontar, E.P. , Yu, S., Kuznetsov, A.A., Emslie, A.G., Alcock, B., Jeffrey, N.L.S. , Melnik, V.N., Bian, N.H. and Subramanian, P. (2017) Imaging spectroscopy of solar radio burst fine structures. Nature Communications, 8, 1515. (doi:10.1038/s41467-017-01307-8) (PMID:29142220)

Casadei, D., Jeffrey, N. L.S. and Kontar, E. P. (2017) Measuring X-ray anisotropy in solar flares. Prospective stereoscopic capabilities of STIX and MiSolFA. Astronomy and Astrophysics, 606, A2. (doi:10.1051/0004-6361/201730629)

Wang, J., Simoes, P.J.A., Jeffrey, N.L.S. , Fletcher, L., Wright, P.J. and Hannah, I.G. (2017) Observations of reconnection flows in a flare on the solar disk. Astrophysical Journal Letters, 847(1), L1. (doi:10.3847/2041-8213/aa8904)

Kontar, E.P. , Perez, J.E., Harra, L.K., Kuznetsov, A.A., Emslie, A.G., Jeffrey, N.L.S. , Bian, N.H. and Dennis, B.R. (2017) Turbulent kinetic energy in the energy balance of a solar flare. Physical Review Letters, 118(15), 155101. (doi:10.1103/PhysRevLett.118.155101) (PMID:28452537)

Jeffrey, N. L.S. , Fletcher, L. and Labrosse, N. (2017) Non-gaussian velocity distributions in solar flares from extreme ultraviolet lines: a possible diagnostic of ion acceleration. Astrophysical Journal, 836(1), (doi:10.3847/1538-4357/836/1/35)

Jeffrey, N. L.S. , Fletcher, L. and Labrosse, N. (2016) First evidence of non-Gaussian solar flare EUV spectral line profiles and accelerated non-thermal ion motion. Astronomy and Astrophysics, 590, A99. (doi:10.1051/0004-6361/201527986)

Li, S., Yan, Y. H., Wang, W., Chen, Z. J., Liu, D. H., Zhang, F. S. and Jeffrey, N. (2016) A new impedance matching method for an ultra-wide band and dual circularly polarised feed. Publications of the Astronomical Society of Australia, 33, e061. (doi:10.1017/pasa.2016.51)

Jeffrey, N. L. S., Kontar, E. P. and Dennis, B. R. (2015) High-temperature differential emission measure and altitude variations in the temperature and density of solar flare coronal X-ray sources. Astronomy and Astrophysics, 584, A89. (doi:10.1051/0004-6361/201526665)

Kontar, E. P., Jeffrey, N. L. S., Emslie, A. G. and Bian, N. H. (2015) Collisional relaxation of electrons in a warm plasma and accelerated nonthermal electron spectra in solar flares. Astrophysical Journal, 809(1), 35. (doi:10.1088/0004-637X/809/1/35)

Jeffrey, N. L.S., Kontar, E. P., Bian, N. H. and Emslie, A. G. (2014) On the variation of solar flare coronal X-ray source sizes with energy. Astrophysical Journal, 787(1), 86. (doi:10.1088/0004-637X/787/1/86)

Jeffrey, N.L.S. and Kontar, E.P. (2013) Temporal variations of x-ray solar flare loops: length, corpulence, position, temperature, plasma pressure, and spectra. Astrophysical Journal, 766(2), Art. 75. (doi:10.1088/0004-637X/766/2/75)

Jeffrey, N.L.S. and Kontar, E.P. (2011) Spatially resolved hard X-ray polarization in solar flares: effects of Compton scattering and bremsstrahlung. Astronomy and Astrophysics, 536, (doi:10.1051/0004-6361/201117987)

Krucker, S., Hudson, H.S., Jeffrey, N.L.S., Battaglia, M., Kontar, E.P., Benz, A.O., Csillaghy, A. and Lin, R.P. (2011) High-resolution imaging of solar flare ribbons and its implication on the thick-target beam model. Astrophysical Journal, 739(2), p. 96. (doi:10.1088/0004-637X/739/2/96)

Kontar, E.P., Hannah, I.G., Jeffrey, N.L.S. and Battaglia, M. (2010) The sub-arcsecond hard x-ray structure of loop footpoints in a solar flare. Astrophysical Journal, 717(1), pp. 250-256. (doi:10.1088/0004-637X/717/1/250)

Kontar, E.P. and Jeffrey, N.L.S. (2010) Positions and sizes of X-ray solar flare sources. Astronomy and Astrophysics, 513, (doi:10.1051/0004-6361/201014066)

Conference Proceedings

Jeffrey, N. L. S., Kontar, E. P., Emslie, A. G. and Bian, N. H. (2015) The collisional relaxation of electrons in hot flaring plasma and inferring the properties of solar flare accelerated electrons from X-ray observations. In: 14th Annual International Astrophysics Conference: Linear and Nonlinear Particle Energization throughout the Heliosphere and Beyond, Tampa, FL, USA, 20-24 Apr 2015, (doi:10.1088/1742-6596/642/1/012013)

This list was generated on Sun Nov 19 10:14:20 2017 GMT.