| GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
|
|
|
|
Standing Shocks in the Inner Slow Solar Wind |
| LI Bo1,2**, CHEN Yan-Jun1, LI Xing3
|
1Shandong Provincial Key Laboratory of Optical Astronomy & Solar-Terrestrial Environment, School of Space Science and Physics, Shandong University at Weihai, Weihai 264209
2 State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190
3Institute of Mathematics and Physics, Aberystwyth University, Aberystwyth SY23 3BZ, UK
|
|
| Cite this article: |
|
LI Bo, CHEN Yan-Jun, LI Xing 2011 Chin. Phys. Lett. 28 059601 |
|
|
|
|
Abstract We examine whether the flow tube along the edge of a coronal streamer supports standing shocks in the inner slow wind by solving an isothermal wind model in terms of the Lambert W function. It is shown that solutions with standing shocks do exist and they exist in a broad area in the parameter space characterizing the wind temperature and flow tube. In particular, streamers with cusps located at a heliocentric distance ≳3.2 Rʘ can readily support discontinuous slow winds with temperatures barely higher than 1 MK.
|
| Keywords:
96.50.Ci
96.60.P-
52.35.Tc
52.65.Kj
|
|
|
Received: 14 December 2010
Published: 26 April 2011
|
|
| PACS: |
96.50.Ci
|
(Solar wind plasma; sources of solar wind)
|
| |
96.60.P-
|
(Corona)
|
| |
52.35.Tc
|
(Shock waves and discontinuities)
|
| |
52.65.Kj
|
(Magnetohydrodynamic and fluid equation)
|
|
|
|
|
|
[1] Holzer T E 1977 J. Geophys. Res. 82 23
[2] Hasan S S and Venkatakrishnan P 1982 Sol. Phys. 80 385
[3] Habbal S R and Tsinganos K 1983 J. Geophys. Res. 88 1965
[4] Habbal S R and Rosner R 1984 J. Geophys. Res. 89 10645
[5] Habbal S R, Hu Y Q and Esser R 1994 J. Geophys. Res. 99 8465
[6] Leer E and Holzer T E 1990 Astrophys. J. 358 680
[7] Marsch E and Tu C Y 1997 Sol. Phys. 176 87
[8] Wang Y M, Ko Y K and Grappin R 2009 Astrophys. J. 691 760
[9] Wang Y M and Sheeley N R Jr. 1990 Astrophys. J. 355 726
[10] Cranmer S R 2004 Am. J. Phys. 72 1397
[11] Corless R M, Gonnet G H, Hare D E G, Jeffrey D J and Knuth D E 1996 Adv. Comput. Math. 5 329
[12] Velli M 2001 Astrophys. Space Sci. 277 157
[13] Esser R and Habbal S R 1990 Sol. Phys. 129 153
[14] Strachan L, Suleiman R, Panasyuk A V, Biesecker D A and Kohl J L 2002 Astrophys. J. 571 1008
[15] Fineschi S, Gardner L D, Kohl J L, Romoli M and Noci G 1998 Proc. SPIE 3443 67
[16] Habbal S R, Esser R and Arndt M B 1993 Astrophys. J. 413 435
[17] Li B, Li X and Labrosse N 2006 J. Geophys. Res. 111 A08106
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
