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Titolo:
EXTREME-ULTRAVIOLET SUNSPOT PLUMES OBSERVED WITH SOHO
Autore:
MALTBY P; BRYNILDSEN N; BREKKE P; HAUGAN SVH; KJELDSETHMOE O; WIKSTOL O; RIMMELE T;
Indirizzi:
UNIV OSLO,INST THEORET ASTROPHYS,POB 1029 N-0315 OSLO NORWAY NATL SOLAR OBSERV SUNSPOT NM 88349
Titolo Testata:
The Astrophysical journal
fascicolo: 2, volume: 496, anno: 1998,
parte:, 2
pagine: 117 -
SICI:
0004-637X(1998)496:2<117:ESPOWS>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOLAR; SPECTROMETER;
Keywords:
SUN, CORONA; SUN, TRANSITION REGION; SUN, UV RADIATION; SUNSPOTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
9
Recensione:
Indirizzi per estratti:
Citazione:
P. Maltby et al., "EXTREME-ULTRAVIOLET SUNSPOT PLUMES OBSERVED WITH SOHO", The Astrophysical journal, 496(2), 1998, pp. 117

Abstract

Bright EUV sunspot plumes have been observed in five out of nine sunspot regions with the Coronal Diagnostic Spectrometer on the Solar and Heliospheric Observatory. In the other four regions, the brightest line emissions may appear inside the sunspot but are mainly concentrated in small regions outside the sunspot areas. These results are in contrast to those obtained during the Solar Maximum Mission but are compatible with the Skylab mission results. The present observations show that sunspot plumes are formed in the upper part of the transition region, occur in both magnetic unipolar and bipolar regions, and may extend from the umbra into the penumbra.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 14:02:17