Items where Author is "Zharkova, Valentina"

Zharkova, Valentina and Shepherd, S. J. (2022) Eigenvectors of solar magnetic field in cycles 21–24 and their links to solar activity indices. Monthly Notices of the Royal Astronomical Society, 512 (4). pp. 5085-5099. ISSN 0035-8711

Zharkova, Valentina and Xia, Qian (2021) Kinetic Plasma Turbulence Generated in a 3D Current Sheet With Magnetic Islands. Frontiers in Astronomy and Space Sciences, 8. p. 665998. ISSN 2296-987X

Zharkova, Valentina (2020) Modern Grand Solar Minimum will lead to terrestrial cooling. Temperature, 7 (3). pp. 217-222. ISSN 2332-8940

Zharkova, Valentina, Zharkov, Sergei, Druett, Malcolm, Matthews, Sarah and Inoue, Satoshi (2020) Sunquake with a second bounce, other sunquakes, and emission associated with the X9.3 flare of 6 September 2017 - II. Proposed interpretation. Astronomy & Astrophysics, 639. A79. ISSN 0004-6361

Zharkov, Sergei, Matthews, Sarah, Zharkova, Valentina, Druett, Malcolm, Inoue, Satoshi, Dammasch, Ingolf E. and MacRae, Connor (2020) Sunquake with a second bounce, other sunquakes, and emission associated with the X9.3 flare of 6 September 2017. I. Observations. Astronomy & Astrophysics, 639. A78. ISSN 0004-6361

Xia, Qian, Dahlin, Joel T., Zharkova, Valentina and Antiochos, Spiro K. (2020) Particle acceleration and transport during 3D CME eruptions. The Astrophysical Journal, 894 (2). p. 89. ISSN 0004-637X

Khabarova, Olga, Zharkova, Valentina, Xia, Qian and Malandraki, Olga (2020) Counterstreaming strahls and heat flux dropouts as possible signatures of local particle acceleration in the solar wind. The Astrophysical Journal Letters, 894 (1). L12. ISSN 2041-8205

Xia, Qian and Zharkova, Valentina (2020) Particle acceleration in coalescent and squashed magnetic islands: II. Particle-in-cell approach. Astronomy & Astrophysics, 635. A116. ISSN 0004-6361

Zharkova, Valentina, Shepherd, S. J., Zharkov, S. I. and Popova, E. (2019) Oscillations of the baseline of solar magnetic field and solar irradiance on a millennial timescale. Scientific Reports, 9 (1). p. 9197. ISSN 2045-2322

Druett, Malcolm and Zharkova, Valentina (2019) Non-thermal hydrogen Lyman line and continuum emission in solar flares generated by electron beams. Astronomy & Astrophysics, 623. A20. ISSN 0004-6361

Xia, Qian and Zharkova, Valentina (2018) Particle acceleration in coalescent and squashed magnetic islands. I. Test particle approach. Astronomy & Astrophysics, 620. A121. ISSN 0004-6361

MacRae, Connor, Zharkov, Sergei, Zharkova, Valentina, Druett, Malcolm, Matthews, Sarah and Karate, Tomoko (2018) Lost and found sunquake in the 6 September 2011 flare caused by beam electrons. Astronomy & Astrophysics, 619. A65. ISSN 0004-6361

Popova, Elena, Zharkova, Valentina, Shepherd, Simon and Zharkov, Sergei (2018) On a role of quadruple component of magnetic field in defining solar activity in grand cycles. Journal of Atmospheric and Solar-Terrestrial Physics, 176. pp. 61-68. ISSN 1364-6826

Zharkova, Valentina, Popova, Elena, Shepherd, Simon and Zharkov, Sergei (2018) Reply to comment on the paper “ on a role of quadruple component of magnetic field in defining solar activity in grand cycles” by Usoskin (2017). Journal of Atmospheric and Solar-Terrestrial Physics, 176. pp. 72-82. ISSN 1364-6826

Druett, Malcolm and Zharkova, Valentina (2018) HYDRO2GEN: Non-thermal hydrogen Balmer and Paschen emission in solar flares generated by electron beams. Astronomy & Astrophysics, 610. A68. ISSN 0004-6361

Druett, Malcolm, Scullion, Eamon, Zharkova, Valentina, Matthews, Sarah, Zharkov, Sergei and van de Voort, Luc Rouppe (2017) Beam Electrons as a source of Hα Flare Ribbons. Nature Communications, 8 (1). p. 15905. ISSN 2041-1723

Zharkova, Valentina and Dobranskis, Rytis (2016) Updated analytical solutions of continuity equation for electron beams precipitation - II. Mixed energy losses. Monthly Notices of the Royal Astronomical Society, 458 (4). pp. 3720-3730. ISSN 0035-8711

Zharkova, Valentina and Zharkov, Sergei (2015) On the generation of hydrodynamic shocks by mixed beams and occurrence of sunquakes in flares. Solar Physics, 290 (11). pp. 3163-3188. ISSN 0038-0938

Zharkova, Valentina, Shepherd, Simon, Popova, Elena and Zharkov, Sergei (2015) Heartbeat of the sun from principal component analysis and prediction of solar activity on a millenium timescale. Scientific Reports, 5. p. 15689. ISSN 2045-2322

Dobranskis, Rytis and Zharkova, Valentina (2015) Updated analytical solutions of continuity equation for electron beams precipitation – I. Pure collisional and pure ohmic energy losses. Monthly Notices of the Royal Astronomical Society, 453 (1). pp. 229-241. ISSN 0035-8711

Zharkova, Valentina and Siversky, Taras (2015) Particle acceleration in 3D single current sheets formed in the solar corona and heliosphere: PIC approach. Journal of Physics Conference Series, 642. ISSN 1742-6596

Zharkova, Valentina and Khabarova, Olga (2015) Additional acceleration of solar-wind particles in current sheets of the heliosphere. Annales Geophysicae (ANGEO), 33 (4). pp. 457-470. ISSN 0992-7689

Khabarova, Olga, Zank, Gary, Li, Gang, le Roux, Jakobus, Webb, Gary, Malandraki, Olga and Zharkova, Valentina (2015) Dynamical small-scale magnetic islands as a source of local acceleration of particles in the solar wind. Journal of Physics: Conference Series, 642. ISSN 1742-6588

Shepherd, Simon, Zharkov, Sergei and Zharkova, Valentina (2014) Prediction of Solar Activity from Solar Background Magnetic Field Variations in Cycles 21-23. The Astrophysical Journal, 795 (1). pp. 46-54. ISSN 1538-4357

Dobranskis, Rytis and Zharkova, Valentina (2014) Exact analytical solutions of continuity equation for electron beams precipitating in coulomb collisions. The Astrophysical Journal, 788 (1). p. 42. ISSN 0004-637X

Popova, Elena, Zharkova, Valentina and Zharkov, Sergei (2013) Probing latitudinal variations of the solar magnetic field in cycles 21-23 by Parker's Two-Layer Dynamo Model with meridional circulation. Annales Geophysicae (ANGEO), 31 (11). pp. 2023-2038. ISSN 0992-7689

Zharkova, Valentina and Khabarova, Olga (2012) Particle Dynamics in the Reconnecting Heliospheric Current Sheet: Solar Wind Data versus Three Dimensional Particle-In-Cell Simulations. The Astrophysical Journal, 752 (1). p. 35. ISSN 0004-637X

Zharkov, Sergei, Green, Lucie, Matthews, Sarah and Zharkova, Valentina (2011) 2011 February 15: Sunquakes produced by Flux Rope Eruption. The Astrophysical Journal Letters, 741 (2). L35. ISSN 2041-8205

Zharkova, Valentina and Siversky, Taras (2011) The effects of electron-beam-induced electric field on the generation of Langmuir turbulance in flaring atmospheres. The Astrophysical Journal, 733 (1). p. 33. ISSN 0004-637X

Matthews, Sarah, Zharkov, Sergei and Zharkova, Valentina (2011) Anatomy of a solar flare: Measurements of the 2006 December 14 X-class flare with GONG, HINODE, and RHESSI. The Astrophysical Journal, 739 (2). p. 71. ISSN 0004-637X

Zharkov, Sergei, Zharkova, Valentina and Matthews, Sarah (2011) Comparison of seismic signatures of flares obtained by SOHO/Michelson Doppler Imager and GONG instruments. The Astrophysical Journal, 739 (2). p. 70. ISSN 0004-637X

Kuznetsov, Alexey A. and Zharkova, Valentina (2010) Manifestations of energetic electrons with anisotropic distributions in solar flares. II. Gyrosynchrotron microwave emission. The Astrophysical Journal, 722. pp. 1577-1588. ISSN 0004-637X

Zharkova, Valentina, Kuznetsov, Alexey A. and Siversky, Taras V. (2010) Diagnostics of energetic electrons with anisotropic distributions in solar flares. Astronomy & Astrophysics, 512. A8. ISSN 0004-6361