Extreme Space Weather in Extra-Solar Systems - a Flare Alert Program

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00561924" target="_blank" >RIV/67985815:_____/17:00561924 - isvavai.cz</a>

Result on the web

<a href="https://oh.geof.unizg.hr/images/publications/volumes/vol41-2017/2017CEAB4167H.pdf" target="_blank" >https://oh.geof.unizg.hr/images/publications/volumes/vol41-2017/2017CEAB4167H.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Extreme Space Weather in Extra-Solar Systems - a Flare Alert Program

Original language description

Highly energetic stellar activity phenomena, such as outbreaks of radiations (flares) and mass expulsions into the helio-/astro-sphere (coronal mass ejections/CMEs), may have a severe impact on the atmospheric evolution of planets. Stellar flare have been studied for decades now and their typical parameters are determined statistically. However, observations of stellar CMEs are rare, yielding only a handful of detections so far. The detection of CMEs on stars demands more observational effort than the detection flares, because the circumstellar environment cannot be spatially resolved like in the Solar System. The most convincing detections up to now were found as Doppler-shifted Balmer line extra-emission/absorption features emerging close to flare events, indicating the rise end ejection of prominence material embedded in the CME core. Dedicated programs aiming for a statistical determination of occurrence rates and the parameters of stellar CMEs are still lacking. Therefore, we propose an innovative and efficient observational approach to search for and characterize CMEs on Sun-like and late-type pre-main sequence and main sequence stars to determine stellar CME parameters and their occurrence rates as a function of stellar spectral type and age, as well as establish a stellar flare/CME association rate, for the first time ever.nn

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Central European Astrophysical Bulletin

ISSN

1845-8319

e-ISSN

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Volume of the periodical

41

Issue of the periodical within the volume

2

Country of publishing house

HR - CROATIA

Number of pages

12

Pages from-to

67-78

UT code for WoS article

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EID of the result in the Scopus database

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