English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

M dwarfs show the highest rocky planet occurrence among all spectral types,in some instances within the Habitable Zone. Because some of them are veryactive stars, they are often subject to frequent and powerful flaring, whichcan be a double-edged sword in regard of exoplanet habitability. On one hand,the increased flux during flare events can trigger the chemical reactions thatare necessary to build the basis of prebiotic chemistry. On the other hand,sufficiently strong flares may erode exoplanets' atmospheres and reduce theirUV protection. Recent observations of flares have shown that the flaring fluxcan be x100 times stronger in UV than in the optical. UV is also preferable toconstrain more accurately both the prebiotic abiogenesis and the atmosphericerosion. For these reasons, we are developing a CubeSat payload concept tocomplement current flare surveys operating in the optical. This CubeSat willobserve a high number of flaring M dwarfs, following an all-sky scanning lawcoverage, both in the UV and the optical to better understand the differenteffective temperatures as wavelengths and flaring status go. This willcomplement the bright optical flares data acquired from the currentground-based, high-cadence, wide FoV surveys. Another scientific planned goalis to conduct few-minute after-the-flare follow-up optical ground-basedtime-resolved spectroscopy, that will be triggered by the detection of UVflares in space on board of the proposed CubeSat. Finally, the study of Mdwarfs stellar activity in the UV band will provide useful data for largerforthcoming missions that will survey exoplanets, such as PLATO, ARIEL, HabExand LUVOIR.

Observing M Dwarfs UV and optical flares from a CubeSat and their implications for exoplanets habitability