Published October 1994
| Published + Erratum
Journal Article
Open
Observations of vector magnetic fields in flaring active regions
- Creators
- Chen, Jimin
-
Wang, Haimin
- Zirin, Harold
- Ai, Guoxiang
Chicago
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Abstract
We present vector magnetograph data of 6 active regions, all of which produced major flares. Of the 20 M-class (or above) flares, 7 satisfy the flare conditions prescribed by Hagyard (high shear and strong transverse fields). Strong photospheric shear, however, is not necessarily a condition for a flare. We find an increase in the shear for two flares, a 6-deg shear increase along the neutral line after a X-2 flare and a 13-deg increase after a M-1.9 flare. For other flares, we did not detect substantial shear changes.
Additional Information
© 1994 Kluwer Academic Publishers. Provided by the NASA Astrophysics Data System. Received 30 December 1993; Revised 12 July 1994. We thank Mr Marc Tamsky for helpful discussions. The study was supported by NSF grants INT-9206863 and ATM-9122023, by NASA grant NAGW-1972, and by ONR grant N00014-89-J-1069. HW acknowledges support from NASA grant NAG5-2090.Errata
Erratum. Sol Phys 158, 205 (1995). https://doi.org/10.1007/BF00680843Attached Files
Published - 1994SoPh__154__261C.pdf
Erratum - 1995SoPh__158__205C.pdf
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1994SoPh__154__261C.pdf
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Additional details
- Eprint ID
- 103330
- Resolver ID
- CaltechAUTHORS:20200519-152432611
- NSF
- INT-9206863
- NSF
- ATM-9122023
- NASA
- NAGW-1972
- Office of Naval Research (ONR)
- N00014-89-J-1069
- NASA
- NAG5-2090
- Created
-
2020-05-19Created from EPrint's datestamp field
- Updated
-
2023-06-01Created from EPrint's last_modified field