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Titolo: Observation of oscillations in coronal loops
Autore: De Moortel, I; Ireland, J; Walsh, RW;
- Indirizzi:
- Univ St Andrews, Sch Math & Computat Sci, St Andrews KY16 9SS, Fife, Scotland Univ St Andrews St Andrews Fife Scotland KY16 9SS Y16 9SS, Fife, Scotland NASA, Goddard Space Flight Ctr, ESA, Greenbelt, MD 20771 USA NASA Greenbelt MD USA 20771 pace Flight Ctr, ESA, Greenbelt, MD 20771 USA
- Titolo Testata:
- ASTRONOMY AND ASTROPHYSICS
fascicolo: 2,
volume: 355,
anno: 2000,
pagine: L23 - L26
- SICI:
- 0004-6361(200003)355:2<L23:OOOICL>2.0.ZU;2-M
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- WAVES; MECHANISMS; PLUMES;
- Keywords:
- magnetohydrodynamics (MHD); Sun : activity; Sun : corona; Sun : oscillations;
- Tipo documento:
- Letter
- Natura:
- Periodico
- Settore Disciplinare:
- Physical, Chemical & Earth Sciences
- Citazioni:
- 15
- Recensione:
- Indirizzi per estratti:
- Indirizzo: De Moortel, I Univ St Andrews, Sch Math & Computat Sci, St Andrews KY16 9SS, Fife, Scotland Univ St Andrews St Andrews Fife Scotland KY16 9SS Scotland
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- Citazione:
- I. De Moortel et al., "Observation of oscillations in coronal loops", ASTRON ASTR, 355(2), 2000, pp. L23-L26
Abstract
On March 23rd 1999, a set of TRACE observations in the 171 Angstrom (Fe rx) bandpass was made of active region AR 8496. A wavelet analysis of a bright loop-footpoint to the south west of this active region displays outward propagating perturbations with periods 180-420 seconds at approximately 70-165 km s(-1). We suggest that these oscillations are slow magneto-acoustic waves propagating along the loop, carrying an estimated energy flux of 4 x 10(2) ergs cm(-2) s(-1).
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/06/13 alle ore 14:12:57