Conveners
Poster Session 6.5
- Emilia Kilpua (University of Helsinki)
We have analysed solar activity using simultaneous observation of Solar Dynamics Observatory (SDO), Solar Terrestrial Relations Observatory (STEREO), Parker Solar Probe (PSP), and GOES missions. We studied the M4.4 class solar flare that occurred around 13:00 on 29th November 2020 in the active region (AR 12790) and the related CME. The flare is observed at the solar limb by the SDO and close...
We summarize our science preparations for the Lyman-alpha Solar Telescope (LST) aboard the Chinese ASO-S mission. LST has the capability to simultaneously observe the Sun from the solar disk to 2.5 solar radii in both Lyman-alpha and visible light. Our particular interests are CMEs, flares, and prominences in the new Lyman-alpha waveband. We Synthesize these eruptive features in Lyman-alpha...
The Extreme Ultraviolet Imager (EUI) onboard Solar Orbiter (SolO) observed an eruption with its Full Sun Imager (FSI) in both of its channels (17.4/30.4 nm), on 2021-April-22. At the time, the spacecraft was at 0.87 au from the Sun. The eruption was seen at the SW limb, starting at 04:24 UT, with the source slightly backside as seen from SolO (S20W103). From the Earth’s perspective, SDO/AIA...
In my talk I will present a statistical study of flares on solar-type stars based on TESS (Transiting Exoplanet Survey Satellite) observations. We used a two-minute cadence data obtained from sectors 1 - 36. Our software allows us to identify flares and determine its parameters such as: amplitude, duration, growth and decay times. Furthermore, we estimate the maximum luminosity and total...
The launch of the Solar Dynamics Observatory (SDO) with the Helioseismic and Magnetic
Imager (HMI) and the Atmospheric Imaging Assembly (AIA) instruments, is the first time that both a vector magnetograph and ribbon-imaging capabilities became available on the same observing platform. This combination presented a first chance to do statistical studies of the properties of the vector magnetic...
Quasi-periodic pulsations (QPPs) refer to nearly-periodic oscillations that are often observed in irradiance time series during solar flares and have also been reported in several stellar flares. In the last years, several statistical studies based on Soft X-ray measurements have reached the conclusion that QPPs are present in most solar flares of class M and above.
However, QPPs sometimes...
