V. G. Lozitsky, E. A. Baranovsky, N. I. Lozitska, V. P. Tarashchuk


We consider three methods for estimations of local  magnetic fields in solar flares: (1)  analysis of bisectors of I ± V profiles (Lozitsky, 2015); (2) search for Zeeman-like effects in cores of spectral lines with very low Lande factors, geff ≈ 0.01 (Lozitsky, 1993, 1998); (3) semi-empirical  modeling  using  many  spectral  lines  and two-component  models  (see,  e.g.,  Lozitsky  et  al.,  2000). We illustrate the application of named methods to different observational data and to different spectral lines. Our main  conclusions  are  following:  (a)  upper  limit  of  local magnetic fields in solar flares is, at least, ~104 G, (b) such extremely strong fields can occur in very small, spatially unresolved scales, (c) lifetime of such fields is, at least, a few minutes. 

Ключові слова

Sun; solar activity; solar flares; magnetic Fields; spectral lines; the Zeeman effect; diagnostics of spatially unresolved structures; extremely strong fields

Повний текст:

PDF (English)


Abramenko V.I., Baranovsky E.A.: 2004, Solar Phys., 220, 81.

Baranovsky E.A., Lozitsky V.G., Tarashchuk V.P.; 2009, Kinem. Phys. Celest. Bodies, 25, 373.

Botygina O.O., Gordovskyy M.Yu., Lozitsky V.G.: 2016, Adv. Astron. Space Phys., 6, 20.

Gordovskyy M., Lozitsky V.G.: 2014, Solar Phys., 289, 3681.

Kirichek E.A., Solov’ev A.A., Lozitskaya N.I. et al.: 2013, Geomagn. Aeronomy., 53, 831.

Kurochka L.N., Tel’njuk-Adamchuk V.V.: 1978, Solar Phys., 59, 11.

Kurochka E.V., Lozitsky V.G., Osyka O.B.: 2008, Kinem. Phys. Celest. Bodies, 24, 308.

Landi Degl’Innocenti E.L.: 1982, Solar Phys., 77, 285.

Lozitsky V., Masliukh V., Botygina O.: 2015, Bull. Taras Shevch. Nat. Univ. of Kyiv. Astronomy, 52, 7.

Lozitsky V.G., Staude J.: 2008, J. Astrophys. Astron., 29, 387.

Lozitsky V.G.,, Lozitska N.I.: 2017, Bull. Taras Shevch. Nat. Univ. of Kyiv. Astronomy, 55, 51.

Lozitsky V.G.: 1984, PhD Thesis, Kiev, 164p.

Lozitsky V.G.: 1993, Kinem. Phys. Celest. Bodies, 9, 18.

Lozitsky V.G.: 1998, Kinem. Phys. Celest. Bodies, 14, 401.

Lozitsky V.G.: 2009, J. Phys. Studies, 13, 2903-1.

Lozitsky V.G.: 2015, Adv. Space Res., 55, 958.

Lozitsky, V.G., Baranovsky, E.A., Lozitska, N.I. et al.: 2000, Solar Phys. 191, 171.

Lozitsky, V.G.: 2011, Int. J. Astron. Astrophys., 1, 147.

Rachkovsky D.N., Tsap T.T., Lozitsky V.G.: 2005. J. Astrophys. Astron., 26, 435.

Solov'ev A.A..:2013, Solar Phys., 286, 441.

Stenflo J.O.: 1973, Solar Phys., 32, 41.

Stenflo J.O.: 2011, A & A, 529, id.A42, 20 pp.

Varsik J., Plymate C., Goode P et al.: 2014, Proc. of SPIE, 9147, id.91475D 10pp.

Copyright (c) 2017 Odessa Astronomical Publications

Creative Commons License
Ця робота ліцензована Creative Commons Attribution-NonCommercial 4.0 International License.