Abstract
A detailed investigation on DH-type-II radio bursts recorded in Deca-Hectometer (hereinafter DH-type-II) wavelength range and their associated CMEs observed during the year 1997–2008 is presented. The sample of 212 DH-type-II associated with CMEs are classified into three populations: (i) Group I (43 events): DH-type-II associated CMEs are accelerating in the LASCO field view (a>15 m s−2); (ii) Group II (99 events): approximately constant velocity CMEs (−15<a<15 m s−2) and (iii) Group III (70 events): represents decelerating CMEs (a<−15 m s−2). Our study consists of three steps: (i) statistical properties of DH-type-II bursts of Group I, II and III events; (ii) analysis of time lags between onsets of flares and CMEs associated with DH-type-II bursts and (iii) statistical properties of flares and CMEs of Group I, II and III events. We found statistically significant differences between the properties of DH-type-II bursts of Group I, II and III events. The significance (P a ) is found using the one-way ANOVA-test to examine the differences between means of groups. For example, there is significant difference in the duration (P a =5%), ending frequency (P a =4%) and bandwidth (P a =4%). The accelerating and decelerating CMEs have more kinetic energy than the constant speed CMEs. There is a significant difference between the nose height of CMEs at the end time of DH-type-IIs (P a ≪1%). From the time delay analysis, we found: (i) there is no significant difference in the delay (flare start—DH-type-II start and flare peak—DH-type-II start); (ii) small differences in the time delay between the CME onset and DH-type-II start, delay between the flare start and CME onset times. However, there are high significant differences in: flare duration (P a =1%), flare rise time (P a =0.5%), flare decay time (P a =5%) and CMEs speed (P a ≪1%) of Group I, II and III events. The general LASCO CMEs have lower width and speeds when compared to the DH CMEs. It seems there is a strong relation between the kinetic energy of CMEs and DH-type-II properties.
Similar content being viewed by others
References
Acuña, M.H., Ogilvie, K.W., Baker, D.N., Curtis, S.A., Fairfield, D.H., Mish, W.H.: Space Sci. Rev. 71, 5 (1995)
Andrews, M.D., Howard, R.A.: Space Sci. Rev. 95, 147 (2001)
Bougeret, J.-L., Kaiser, M.L., Kellogg, P.J., Manning, R., Goetz, K., Monson, S.J., Monge, N., Friel, L., Meetre, C.A., Perche, C.: Space. Sci. Rev. 71, 231 (1995)
Brueckner, G., Howard, R.A., Koomen, M.J., Korendyke, C.M., Michels, D.J., Moses, J.D., Socker, D.G., Dere, K.P., Lamy, P.L., Llebaria, A.: Sol. Phys. 162, 357 (1995)
Cane, H.V.: In: Neugebauer, M. (ed.) Solar Wind Five. NASA CP, vol. 2280, p. 703 (1983)
Cliver, E.W., Webb, D.F., Howard, R.A.: Sol. Phys. 187, 89 (1999)
Gopalswamy, N., Kaiser, M.L., Lepping, R.P., Kahler, S.W., Ogilvie, K., Berdichevksy, D., Kondo, T., Isobe, T., Akioka, M.: J. Geophys. Res. 103, 307 (1998)
Gopalswamy, N., Kaiser, M.L., Lepping, R.P., Kahler, S.W., Ogilvie, K., Berdichevksy, D., Kondo, T., Isobe, T., Akioka, M.: J. Geophys. Res. 104, 4749 (1999)
Gopalswamy, N.: In: Stone, R.G., Weiler, K.W., Goldstein, M.L., Bougeret, J.L. (eds.) Radio Astronomy at Long Wavelengths, Geophys. Monogr. vol. 119, p. 23 (2000)
Gopalswamy, N., Lara, A., Kaiser, M.L., Bougeret, J.L.: J. Geophys. Res. 106 A11, 25261 (2001a)
Gopalswamy, N., Yashiro, S., Kaiser, M.L., Howard, R.A., Bougeret, J.L.: J. Geophys. Res. 106(A12), 29219 (2001b)
Gopalswamy, N., Yashiro, S., Michalek, G., Kaiser, M.L., Howard, R.A., Reames, D.V., Leske, R., von Rosenvinge, T.: Astrophys. J. 572, L103 (2002)
Gopalswamy, N., Yashiro, S., Michalek, G., Stenborg, G., Vourlidas, A., Freeland, S., Howard, R.: Earth Moon Planets 104, 295 (2009)
Gosling, J.T., Hildner, E., MacQueen, R.M., Munro, R.H., Poland, A.I., Ross, C.L.: Sol. Phys. 48, 389 (1976)
Maričić, D., Vršnak, B., Stanger, A.L., Veronig, A.: Sol. Phys. 225, 337 (2004)
Moon, Y.-J., Choe, G.S., Wang, H., Park, Y.D., Gopalswamy, N., Yang, G., Yashiro, S.: Astrophys. J. 581, 694 (2002)
Moon, Y.-J., Cho, K.S., Smith, Z., Fry, C.D., Dryer, M., Park, Y.D.: Astrophys. J. 615, 1011 (2004)
Pappa kalaivani, P., Umapathy, S., Shanmugaraju, A., Prakash, O.: Astrophys. Space Sci. 330, 237 (2010)
Prakash, O., Umapathy, S., Shanmugaraju, A., Vršnak, B.: Sol. Phys. 258, 105 (2009)
Prakash, O., Umapathy, S., Shanmugaraju, A., Pappa kalaivani, P., Vršnak, B.: Sol. Phys. 266, 135 (2010)
Reiner, M.J., Kaiser, M.L.: J. Geophys. Res. 104, 16979 (1999)
Reiner, M.J., Kaiser, M.L., Plunkett, S.P., Prestage, N.P., Manning, R.: Astrophys. J. Lett. 529, L53 (2000)
Shanmugaraju, A., Moon, Y.-J., Dryer, M., Umapathy, S.: Sol. Phys. 215, 161 (2003)
Sheeley, N.J. Jr., Watter, J.H., Wang, Y.-M., Howard, R.A.: J. Geophys. Res. 104, 24739 (1999)
Vršnak, B., Ruždjak, D., Sudar, D., Gopalswamy, N.: Astron. Astrophys. 423, 717 (2004)
Vršnak, B., Cliver, E.W.: Sol. Phys. 253, 215 (2008)
Vršnak, B., Maričić, D., Stanger, A.L., Veronig, A.M., Temmer, M., Roša, D.: Sol. Phys. 241, 85 (2007)
Yashiro, S., Gopalswamy, N., Michalek, G., St.Cyr, O.C., Plunkett, S.P., Rich, N.B., Howard, R.A.: J. Geophys. Res. 109, A07105 (2004)
Zhang, J.: In: IAU Symposium No. 226 on Coronal and Stellar Mass Ejection Proceedings. (2005). doi:10.1017/S1743921305000153
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Prakash, O., Umapathy, S., Shanmugaraju, A. et al. Characteristics of DH type II bursts, CMEs and flares with respect to the acceleration of CMEs. Astrophys Space Sci 337, 47–64 (2012). https://doi.org/10.1007/s10509-011-0817-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10509-011-0817-4