Flux distribution of solar intranetwork magnetic fields
Article
Received:
Revised:
- 46 Downloads
- 74 Citations
Abstract
Big Bear deep magnetograms of June 4, 1992 provide unprecedented observations for direct measurements of solar intranetwork (IN) magnetic fields. More than 2500 individual IN elements and 500 network elements are identified and their magnetic flux measured in a quiet region of 300 × 235 arc sec. The analysis reveals the following results:
- (1)
IN element flux ranges from 1016 Mx (detection limit) to 2 × 1018 Mx, with a peak flux distribution of 6 × 1016 Mx.
- (2)
More than 20% of the total flux in this quiet region is in the form of IN elements at any given time.
- (3)
Most IN elements appear as a cluster of mixed polarities from an emergence center (or centers) somewhere within the network interior.
- (4)
The IN flux is smaller than the network flux by more than an order of magnitude. It has a uniform spatial distribution with equal amount of both polarities.
It is speculated that IN fields are intrinsically different from network fields and may be generated from a different source as well.
Keywords
Magnetic Field Spatial Distribution Detection Limit Direct Measurement Magnetic Flux
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Preview
Unable to display preview. Download preview PDF.
References
- Durney, B. R., De Young, D. S., and Roxburgh, I. W.: 1993,Solar Phys. 145, 207.Google Scholar
- Keller, C. U., Deubner, F. L., Egger, U., Fleck, B., and Povel, H. P.: 1994,Astron. Astrophys. 286, 626.Google Scholar
- Lin, H.: 1994,Astrophys. J., submitted.Google Scholar
- Liu, Y, Zhang, H., Ai, G., Wang, H., and Zirin, H.: 1994,Astron. Astrophys. 283, 215.Google Scholar
- Livi, S. H. B., Wang, J., Martin, S.F.: 1985,Australian J. Phys. 38, 855.Google Scholar
- Livingston, W. C. and Harvey, J. W.: 1975,Bull. Amer. Astron. Soc. 7, 346.Google Scholar
- Martin, S. F.: 1984, in S. L. Keils (ed.),Small-scale Dynamical Processes in Quiet Stellar Atmospheres, p. 30, Sunspot, NM.Google Scholar
- Martin, S. F.: 1988,Solar Phys. 117, 243.Google Scholar
- Martin, S. F.: 1990, in J. O. Stenflo (ed.),Solar Photosphere: Structure, Convention, and Magnetic Fields, p. 129.Google Scholar
- Muller, R.: 1983,Solar Phys. 85, 113.Google Scholar
- Parker, E. N.: 1991,Astrophys. J. 372, 719.Google Scholar
- Petrovay, K. and Szakaly, G.: 1993,Astron. Astrophys. 274, 543.Google Scholar
- Rabin, D. M., DeVore, C. R., Sheeley, N. R., Jr., Harvey, K. L., and Hoeksema, J. T.: 1991, in A. N. Coxet al. (eds.),Solar Interior and Atmosphere, p. 781.Google Scholar
- Schüssler. M.: 1984,Astron. Astrophys. 140, 453.Google Scholar
- Shi, Z., Wang, J., Liu, J., Han, F., and Liu, G.: 1990,Acta Astron. Sinica 31, 63.Google Scholar
- Smithson, R. C.: 1975,Bull. Amer. Astron. Soc 7, 346.Google Scholar
- Stenflo, J. O.: 1973,Solar Phys. 32, 41.Google Scholar
- Tarbell, T. D., Title, A. M., and Schoolman, S. A.: 1979,Astrophys. J. 229, 387.Google Scholar
- Varsik, J. R.: 1994,Solar Phys., submitted.Google Scholar
- Wang, H. and Zirin, H.: 1988,Solar Phys. 115, 205.Google Scholar
- Wang, H., Zirin, H., Patterson, A., Ai, G., and Zhang, H.: 1989,Astrophys. J. 343, 489.Google Scholar
- Wang, J. and Shi, Z.: 1988,Acta Astron. Sinica 29, 48.Google Scholar
- Wang, J., Zirin, H., and Shi, Z.: 1985,Solar Phys. 98, 241.Google Scholar
- Wang, J., Shi, Z., Liu, J., Han, F., and Liu, G.: 1989,Publ. Beijing Astron. Obs. 14.Google Scholar
- Zirin, H.: 1985,Australian J. Phys. 38, 961.Google Scholar
- Zirin, H.: 1987,Solar Phys. 110, 101.Google Scholar
- Zirin, H.: 1993, in H.Zirinet al. (eds.),Magnetic and Velocity Fields of Solar Active Regions, p. 215.Google Scholar
Copyright information
© Kluwer Academic Publishers 1995