Published September 1987
| Published
Journal Article
Open
Arch filaments associated with the formation of sunspots by umbral merging
- Creators
- Zirin, Harold
Abstract
The formation of a sunspot during the emergence of a new group is described. The spot forms from a cluster of small umbrae that do not converge. Rather, the individual umbrae enlarge and merge into a spot covering the same area. The formation of each umbra is accompanied by an intensification of the arch filament anchored in it. The formation of the sunspot produces no apparent change in the total field.
Additional Information
© 1987 Kluwer Academic Publishers. Provided by the NASA Astrophysics Data System. Received 24 September, 1986; in revised form 25 August, 1987. This research was supported by the NSF Atmospheric Sciences Section under ATM 8513577 and NASA under NGL 05 002 034. I am indebted to Randy Fear, Dean Chou and Bill Marquette for their assistance in obtaining the observations.Attached Files
Published - 1987SoPh__114__239Z.pdf
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1987SoPh__114__239Z.pdf
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Additional details
- Eprint ID
- 103632
- Resolver ID
- CaltechAUTHORS:20200602-082147568
- ATM-8513577
- NSF
- NGL 05 002 034
- NASA
- Created
-
2020-06-02Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field