Volume 41 Issue 3
May  2021
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Article Navigation >  Chinese Journal of Space Science  > 2021  >  41(3): 355-367
QIAN Tianqi, DING Liuguan, ZHOU Kunlun, WANG Zhiwei, ZHU Cong. Statistical Research on the Longitudinal Distribution of Detected Properties of Solar Energetic Particles[J]. Chinese Journal of Space Science, 2021, 41(3): 355-367. doi: 10.11728/cjss2021.03.355
Citation: QIAN Tianqi, DING Liuguan, ZHOU Kunlun, WANG Zhiwei, ZHU Cong. Statistical Research on the Longitudinal Distribution of Detected Properties of Solar Energetic Particles[J]. Chinese Journal of Space Science, 2021, 41(3): 355-367. doi: 10.11728/cjss2021.03.355
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Statistical Research on the Longitudinal Distribution of Detected Properties of Solar Energetic Particles

doi: 10.11728/cjss2021.03.355 cstr: 32142.14.cjss2021.03.355

  • 1. Institute of Space Weather, Nanjing University of Information Science and Technology, Nanjing 210044;

  • 2. Binjiang College, Nanjing University of Information Science and Technology, Nanjing 210044;

  • 3. Key Laboratory of Dark Matter and Space Astronomy, Chinese Academy of Sciences, Nanjing 210008;

  • 4. China Polar Research Center, Shanghai 200136

  • Received Date: 2020-05-19
  • Rev Recd Date: 2021-02-07
  • Publish Date: 2021-05-15
    Abstract
  • Using the observations from multi-points spacecraft, e.g., SOHO and STEREO, 122 SEP events and associated CMEs during the 24th solar cycle from December 2006 to October 2017 are selected. The longitudinal distributions of SEP characteristics and their relationship with CMEs properties are analyzed, as well as the relation with the event-integrated Fe/O ratio. Results are shown as follows: Large SEP events usually have a lower Fe/O ratio, while those events with high Fe/O have lower CME velocity, mass and kinetic energy, but have faster flux rising speed. The duration Du and peak flux Ip of SEP correlate well with the associated CME velocity positively (correlation coefficient, CC: 0.50 and 0.57). Comparing to the events with a high Fe/O ratio, the events with low Fe/O obviously have much higher correlation coefficients for Du and Ip with CME. The characteristic time TO and TR of SEPs generally increases with the raising of relative longitude, while Du and Ip decrease distinctly with the raising of relative longitude. And the slope K of the SEPs flux enhancing in the onset phase seems to decrease from the east (-90°) to west (90°) relative to the source region. TO shows a negative correlation with CME velocity, mass and kinetic energy in the magnetic well-connected points, while there is no distinct correlation in other poor-connected points. Meanwhile, TR has a positive correlation with CME only in the relative longitude range of [-30°, +30°]. Du and Ip have a stronger correlation with CME velocity in the well-connected condition (CC: 0.60 and 0.75 respectively) than others (0.46 and 0.56). The conclusion reveals that the detection of SEP event and its time profile evolution is not only affected by the associated CME, but also controlled by the relative longitude between the magnetic foot point and the solar eruption source, and for the well-connected points, the detectable SEP event has more high intensity and good positive correlation with its associated CME, which is very important for the space weather prediction of SEP events, especially large or extremely large SEP events. Moreover, the SEP event with a high Fe/O ratio seems to become weaker among the relationship with CME, which implies that some facts such as flare acceleration, seed population, and so on, will play important roles during the generation of gradual SEP events associated with CME-driven shock.

     

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    • References(31)
  • [1]
    KAHLER S W, REAMES D V, SHEELEY N R. Coronal mass ejections associated with impulsive solar energetic particle events[J]. Astrophys. J., 2001, 562(1):558-565
    [2]
    CANE H V, MCGUIRE R E, VON ROSENVINGE T T. Two classes of solar energetic particle events associated with impulsive and long-duration soft X-ray flares[J]. Astrophys. J., 1986, 301(1):448-459
    [3]
    REAMES D V. Particle acceleration at the sun and in the heliosphere[J]. Space Sci. Rev., 1999, 90(3/4):413-491
    [4]
    CLIVER E W, SVALGAARD L. The 1859 solar-terrestrial disturbance and the current limits of extreme space weather activity[J]. Sol. Phys., 2004, 224(1/2):407-422
    [5]
    KLEIN K L, KRUCKER S, LOINTIER G, et al. Open magnetic flux tubes in the corona and the transport of solar energetic particles[J]. Astron. Astrophys., 2008, 486(2):589-596
    [6]
    CANE H V, REAMES D V, VON ROSENVINGE T T. The role of interplanetary shocks in the longitude distribution of solar energetic particles[J]. J. Geophys. Res., 1988, 93(A9):9555-9567
    [7]
    GOPALSWAMY N. Intensity variation of large solar energetic particle events associated with coronal mass ejections[J]. J. Geophys. Res., 2004, 109(A12):A12105
    [8]
    DING L G, JIANG Y, ZHAO L L, et al. The “twin-CME” scenario and large solar energetic particle events in solar cycle 23[J]. Astrophys. J., 2013, 763(30):17
    [9]
    TYLKA A J, COHEN C M S, DIETRICH W F, et al. Shock geometry, seed populations, and the origin of variable elemental composition at high energies in large gradual solar particle events[J]. Astrophys. J., 2005, 625:474-495
    [10]
    SOKOLOV I V, ROUSSEV I I, FISK L A, et al. Diffusive shock acceleration theory revisited[J]. Astrophys. J. Lett., 2006, 642:81-84
    [11]
    KAHLER S W. Energetic particle acceleration by coronal mass ejections[J]. Adv. Space. Res., 2003, 32(12):2587-2596
    [12]
    DING L G, CAO X X, WANG Z W, et al. Large solar energetic particle event that occurred on 2012 March 7 and its VDA analysis[J]. Res. Astron. Astrophys., 2016, 16(8):122
    [13]
    RUFFOLO D, TOOPRAKAI P, RUJIWARODOM M, et al. Relativistic solar protons on 1989 October 22: injection and transport along both legs of a closed interplanetary magnetic loop[J]. Astrophys. J., 2016, 639(2):1186-1205
    [14]
    RICHARDSON I G, CANE H V, VON ROSENVINGE T T. Prompt arrival of solar energetic particles from far eastern events: the role of large-scale interplanetary magnetic field structure[J]. J. Geophys. Res., 1991, 96(A5):7853-7860
    [15]
    LARIO D, RAOUAFI N E, KWON R Y, et al. The solar energetic particle event on 2013 April 11: an investigation of its solar origin and longitudinal spread[J]. Astrophys. J., 2014, 797(8):16
    [16]
    LARIO D, KWON R-Y, RICHARDSON I G, et al. The solar energetic particle event of 2010 August 14: connectivity with the solar source inferred from multiple spacecraft observations and modeling[J]. Astrophys. J., 2017, 838(1):24
    [17]
    LARIO D, ARAN A, GOMEZ HERRERO R, et al. Longitudinal and radial dependence of solar energetic particle peak intensities: STEREO, ACE, SOHO, GOES, and MESSENGER observations[J]. Astrophys. J., 2013, 767(41):18
    [18]
    HE H Q, WAN W. On the east-west longitudinally asymmetric distribution of solar proton events[J]. Mon. Not. R. Astron. Soc., 2016, 2255.DOI: 10.1093/mnras/stw2255
    [19]
    KAHLER S W. Characteristic times of gradual solar energetic particle events and their dependence on associated coronal mass ejection properties[J]. Astrophys. J., 2005, 628:1014-1022
    [20]
    JIAN Yi, LAI Min, DING Liuguan. Statistical study on the ascending time of solar energetic particle events (in Chinese)[J]. Chin. J. Space. Sci., 2014, 34(6):785-793(简昳, 赖敏, 丁留贯. 太阳高能粒子事件上升事件统计研究[J]. 空间科学学报, 2014, 34(6):785-793)
    [21]
    RICHARDSON I G, VON ROSENVINGE T T, CANE H V, et al. >25MeV proton events observed by the high energy telescopes on the STEREO A and B spacecraft and/or at Earth during the first seven years of the STEREO mission[J]. Sol. Phys., 2014, 289(8):3059-3107
    [22]
    CANE H V, MEWALDT R A, COHEN C M S, et al. Role of flares and shocks in determining solar energetic particle abundances[J]. J. Geophys. Res., 2006, 111(A06S90).DOI: 10.1029/2005JA011071
    [23]
    DING L G, LI G, LE G M, et al. Seed population in large solar energetic particle events and the twin-CME scenario[J]. Astrophys. J., 2015, 812(2):171
    [24]
    WANG Zhiwei, DING Liuguan, ZHOU Kunlun, et al. On the relationship between large SEP event and twin-CME with the observations from multiple-vantage spacecraft (in Chinese)[J]. Chin. J. Geophy., 2018, 61(9):3515-3525(王智伟, 丁留贯, 周坤论, 等. 基于多视角观测的SEP事件与twin-CME关系研究[J]. 地球物理学报, 2018, 61(9):3515-3525)
    [25]
    DING L G, WANG Z W, FENG L, et al. Is the enhancement of type II radio bursts during CME interactions related to the associated solar energetic particle event[J]. Res. Astron. Astrophys., 2019, 19(1):5
    [26]
    LI C, TANG Y H, DAI Y, et al. The acceleration characteristics of solar energetic particles in the 2000 July 14 event[J]. Astron. Astrophys., 2007, 461(3):1115-1119
    [27]
    LI C, TANG Y H, DAI Y, et al. Flare magnetic reconnection and relativistic particles in the 2003 October 28 event[J]. Astron. Astrophys., 2007, 472(1):283-286
    [28]
    ROUILLARD A P, ODSTŘCIL D, SHEELEY N R, et al. Interpreting their properties of solar energetic particle events by using combined imaging and modeling of interplanetary shocks[J]. Astrophys. J., 2011, 735(1):7
    [29]
    ROUILLARD A P, SHEELEY N R, TYLKA A, et al. The longitudinal properties of a solar energetic particle event investigated using modern solar imaging[J]. Astrophys. J., 2012, 752(1):44
    [30]
    KAHLER S W, VOURLIDAS A. A comparison of the intensities and energies of gradual solar energetic particle with the dynamical properties of associated coronal mass ejections[J]. Astrophys. J., 2013, 769(2):143
    [31]
    KAHLER S W, VOURLIDAS A. Do interacting coronal mass ejections play a role in solar energetic particle events[J]. Astrophys. J., 2014, 784(1):47
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