Search Results - "Lysenko, Alexandra L"

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    Cold Solar Flares. I. Microwave Domain by Lysenko, Alexandra L., White, Stephen M., Zhdanov, Dmitry A., Meshalkina, Nataliia S., Altyntsev, Aleksander T., Motorina, Galina G., Fleishman, Gregory D.

    Published in The Astrophysical journal (01-09-2023)
    “…Abstract We identify a set of ∼100 “cold” solar flares and perform a statistical analysis of them in the microwave range. Cold flares are characterized by a…”
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    Journal Article
  3. 3

    Statistics of "Cold" Early Impulsive Solar Flares in X-Ray and Microwave Domains by Lysenko, Alexandra L., Altyntsev, Alexander T., Meshalkina, Natalia S., Zhdanov, Dmitriy, Fleishman, Gregory D.

    Published in The Astrophysical journal (01-04-2018)
    “…Solar flares often happen after a preflare/preheating phase, which is almost or entirely thermal. In contrast, there are the so-called early impulsive flares…”
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    Journal Article
  4. 4

    Rapid Variability in the SOL2011-08-04 Flare: Implications for Electron Acceleration by Altyntsev, Alexander T., Meshalkina, Nataliia S., Lysenko, Alexandra L., Fleishman, Gregory D.

    Published in The Astrophysical journal (20-09-2019)
    “…Particle acceleration in solar flares remains an outstanding problem in solar physics. It is currently unclear which of the acceleration mechanisms dominates…”
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    Journal Article
  5. 5

    Gamma-Ray Emission from the Impulsive Phase of the 2017 September 6 X9.3 Flare by Lysenko, Alexandra L., Anfinogentov, Sergey A., Svinkin, Dmitry S., Frederiks, Dmitry D., Fleishman, Gregory D.

    Published in The Astrophysical journal (01-06-2019)
    “…We report hard X-ray and gamma-ray observations of the impulsive phase of the SOL2017-09-06T11:55 X9.3 solar flare. We focus on a high-energy part of the…”
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    Journal Article
  6. 6

    A COLD FLARE WITH DELAYED HEATING by Fleishman, Gregory D., Pal'shin, Valentin D., Meshalkina, Natalia, Lysenko, Alexandra L., Kashapova, Larisa K., Altyntsev, Alexander T.

    Published in The Astrophysical journal (10-05-2016)
    “…ABSTRACT Recently, a number of peculiar flares have been reported that demonstrate significant nonthermal particle signatures with low, if any, thermal…”
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    Journal Article
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    Coupling between magnetic reconnection, energy release, and particle acceleration in the X17.2 2003 October 28 solar flare by Kurt, Victoria G, Veronig, Astrid M, Fleishman, Gregory D, Hinterreiter, Jürgen, Tschernitz, Johannes, Lysenko, Alexandra L

    Published 12-03-2024
    “…A&A 686, A195 (2024) The 2003 October 28 (X17.2) eruptive flare was a unique event. The coronal electric field and the {\pi}-decay {\gamma}-ray emission flux…”
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    Journal Article
  9. 9

    The Third Konus-Wind Catalog of Short Gamma-Ray bursts by Lysenko, Alexandra L, Svinkin, Dmitry S, Frederiks, Dmitry D, Ridnaia, Anna V, Tsvetkova, Anastasia E, Ulanov, Mikhail V

    Published 22-10-2024
    “…In this catalog, we present the results of a systematic study of 199 short gamma-ray bursts (GRBs) detected by Konus-Wind between 2011 January 1 and 2021…”
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    Journal Article
  10. 10

    Camelidae on BOAT: observation of a second spectral component in GRB 221009A by Banerjee, Biswajit, Macera, Samanta, De Santis, Alessio Ludovico, Mei, Alessio, Tissino, Jacopo, Oganesyan, Gor, Frederiks, Dmitry D, Lysenko, Alexandra L, Svinkin, Dmitry S, Tsvetkova, Anastasia E, Branchesi, Marica

    Published 24-05-2024
    “…Observing and understanding the origin of the very-high-energy (VHE) spectral component in gamma-ray bursts (GRBs) has been challenging because of the lack of…”
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    Journal Article
  11. 11

    Cold Solar Flares I. Microwave Domain by Lysenko, Alexandra L, White, Stephen M, Zhdanov, Dmitry A, Meshalkina, Nataliia S, Altyntsev, Aleksander T, Motorina, Galina G, Fleishman, Gregory D

    Published 07-09-2023
    “…The Astrophysical Journal, 2023, Volume 954, Issue 2, id.122, 12 pp We identify a set of ~100 "cold" solar flares and perform a statistical analysis of them in…”
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    Journal Article
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    Rapid Variability in the SOL2011-08-04 Flare: Implications for Electron Acceleration by Altyntsev, Alexander T, Meshalkina, Nataliia S, Lysenko, Alexandra L, Fleishman, Gregory D

    Published 09-09-2019
    “…Particle acceleration in solar flares remains an outstanding problem in solar physics. It is yet unclear which of the acceleration mechanisms dominates and how…”
    Get full text
    Journal Article
  15. 15

    Gamma-ray emission from the impulsive phase of the 2017 September 06 X9.3 flare by Lysenko, Alexandra L, Anfinogentov, Sergey A, Svinkin, Dmitry D, Frederiks, Dmitry D, Fleishman, Gregory D

    Published 22-04-2019
    “…We report hard X-ray and gamma-ray observations of the impulsive phase of the SOL2017-09-06T11:55 X9.3 solar flare. We focus on a high-energy part of the…”
    Get full text
    Journal Article
  16. 16

    Statistics of "Cold" Early Impulsive Solar Flares in X-ray and Microwave domains by Lysenko, Alexandra L, Altyntsev, Alexander T, Meshalkina, Natalia S, Zhdanov, Dmitriy, Fleishman, Gregory D

    Published 27-02-2018
    “…Solar flares often happen after a preflare / preheating phase, which is almost or entirely thermal. In contrast, there are the so-called early impulsive flares…”
    Get full text
    Journal Article
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    A Cold Flare With Delayed Heating by Fleishman, Gregory D, Pal'shin, Valentin D, Meshalkina, Natalia, Lysenko, Alexandra L, Kashapova, Larisa K, Altyntsev, Alexander T

    Published 23-03-2016
    “…Recently, a number of peculiar flares have been reported, which demonstrate significant non-thermal particle signatures with a low, if any, thermal emission,…”
    Get full text
    Journal Article