| Full text | |
| Author(s): |
Conde C, Sandra M.
;
Jain, Rekha
;
Jatenco-Pereira, Vera
Total Authors: 3
|
| Document type: | Journal article |
| Source: | ASTROPHYSICAL JOURNAL; v. 931, n. 2, p. 13-pg., 2022-06-01. |
| Abstract | |
We present measurements of periodicity for transverse loop oscillations during the periods of activity of two remote and separated (both temporally and spatially) flares. The oscillations are observed in the same location more than 100 Mm away from the visible footpoints of the loops. Evidence for several possible excitation sources is presented. After close examination, we find that the eruptions during the flaring activities play an important role in triggering the oscillations. We investigate periodicities using time-distance, fast Fourier transform, and wavelet techniques. Despite different excitation sources in the vicinity of the loops and the changing nature of amplitudes, the periodicity of multiple oscillations is found to be 4-6 min. (AU) | |
| FAPESP's process: | 13/10559-5 - Investigation of high energy and plasma astrophysics phenomena: theory, numerical simulations, observations, and instrument development for the Cherenkov Telescope Array (CTA) |
| Grantee: | Elisabete Maria de Gouveia Dal Pino |
| Support Opportunities: | Special Projects |
| FAPESP's process: | 18/25306-9 - 3D analysis of damped longitudinal waves in coronal loops associated with flaring events |
| Grantee: | Sandra Milena Conde Cuellar |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 17/23026-6 - 3D analysis of the damping of magneto-acoustic waves in coronal loops associated with flaring events |
| Grantee: | Sandra Milena Conde Cuellar |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |