Publication details

Science with a Small Two-Band UV-Photometry Mission II: Observations of Stars and Stellar Systems

Authors	KRTIČKA Jiří BENÁČEK Jan BUDAJ Ján KORČÁKOVÁ Daniela PÁL András PIECKA Martin ZEJDA Miloslav BAKIŞ Volkan BROŽ Miroslav CHANG Hsiang-Kuang FALTOVÁ Nikola GÁLIS Rudolf JADLOVSKÝ Daniel JANÍK Jan KÁRA Jan KOLÁŘ Jakub KRTIČKOVÁ Iva KUBÁT Jiří KUBÁTOVÁ Brankica KURFÜRST Petr LABAJ Matúš MERC Jaroslav MIKULÁŠEK Zdeněk MÜNZ Filip PAUNZEN Ernst PRIŠEGEN Michal RAMEZANI Tahereh RIEVAJOVÁ Tatiana ŘÍPA Jakub SCHMIDTOBREICK Linda SKARKA Marek SZÁSZ Gabriel WEISS Werner ZAJAČEK Michal WERNER Norbert
Year of publication	2024
Type	Article in Periodical
Magazine / Source	Space Science Reviews
MU Faculty or unit	Faculty of Science
Citation
Web	https://arxiv.org/abs/2306.15081 https://link.springer.com/article/10.1007/s11214-024-01058-1
Doi	http://dx.doi.org/10.1007/s11214-024-01058-1
Keywords	Binaries: general; Open clusters and associations: general; Planetary systems; Stars: variables: general; Techniques: photometric; Ultraviolet: stars
Attached files	2393057.pdf
Description	We outline the impact of a small two-band UV-photometry satellite mission on the field of stellar physics, magnetospheres of stars, binaries, stellar clusters, interstellar matter, and exoplanets. On specific examples of different types of stars and stellar systems, we discuss particular requirements for such a satellite mission in terms of specific mission parameters such as bandpass, precision, cadence, and mission duration. We show that such a mission may provide crucial data not only for hot stars that emit most of their light in UV, but also for cool stars, where UV traces their activity. This is important, for instance, for exoplanetary studies, because the level of stellar activity influences habitability. While the main asset of the two-band UV mission rests in time-domain astronomy, an example of open clusters proves that such a mission would be important also for the study of stellar populations. Properties of the interstellar dust are best explored when combining optical and IR information with observations in UV. It is well known that dust absorbs UV radiation efficiently. Consequently, we outline how such a UV mission can be used to detect eclipses of sufficiently hot stars by various dusty objects and study disks, rings, clouds, disintegrating exoplanets or exoasteroids. Furthermore, UV radiation can be used to study the cooling of neutron stars providing information about the extreme states of matter in the interiors of neutron stars and used for mapping heated spots on their surfaces.