Items where Author is "Zharkov, Sergei"

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

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, 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

Cook, Richard, McLaughlin, James, Morton, Richard, Scullion, Eamon, Shelyag, Sergiy, Hamilton, Alexander, Zharkov, Sergei, Jess, Dave and Wrigley, Mark (2017) Project SunbYte: solar astronomy on a budget. Astronomy & Geophysics, 58 (2). 2.24-2.25. ISSN 1366-8781

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

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

Zharkov, Sergei, Shelyag, Sergiy, Fedun, Viktor, Erdélyi, Robert and Thompson, Michael John (2013) Photospheric high-frequency acoustic power excess in sunspot umbra: signature of magneto-acoustic modes. Annales Geophysicae, 31 (8). pp. 1357-1364. ISSN 1432-0576

Zharkov, Sergei (2013) Properties of the 15 February 2011 Flare Seismic Sources. Solar Physics, 284 (2). pp. 315-327. ISSN 0038-0938

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

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

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

Shelyag, Sergiy, Zharkov, Sergei, Fedun, Viktor, Erdélyi, Robert and Thompson, Michael John (2009) Acoustic wave propagation in the solar sub-photosphere with localised magnetic field concentration: effect of magnetic tension. Astronomy & Astrophysics, 501 (2). pp. 735-743. ISSN 0004-6361