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@inproceedings{1229866, author = {Krtička, Jiří and Mikulášek, Zdeněk and Zverko, Juraj and Prvák, Milan}, address = {Moskva, Rusko}, booktitle = {Putting A Stars into Context: Evolution, Environment, and Related Stars}, editor = {G. Mathys, E. Griffin, O. Kochukhov, R. Monier, G. Wahlgren}, keywords = {chemically peculiar stars; light variability; model atmospheres}, howpublished = {tištěná verze "print"}, language = {eng}, location = {Moskva, Rusko}, isbn = {978-5-00086-273-5}, pages = {205-213}, publisher = {Pero}, title = {The origin of light variability in Ap stars}, url = {http://adsabs.harvard.edu/abs/2014psce.conf..205K}, year = {2014} }
TY - JOUR ID - 1229866 AU - Krtička, Jiří - Mikulášek, Zdeněk - Zverko, Juraj - Prvák, Milan PY - 2014 TI - The origin of light variability in Ap stars PB - Pero CY - Moskva, Rusko SN - 9785000862735 KW - chemically peculiar stars KW - light variability KW - model atmospheres UR - http://adsabs.harvard.edu/abs/2014psce.conf..205K N2 - The usual photometric variability detected in Ap stars is that associated with rotation. It has long been surmised that redistribution of rotationally modulated flux in surface abundance spots is the cause of that type of variability. The redistribution is caused by bound-bound (line) and bound-free (continuum) transitions of various elements, in particular helium, silicon, iron, and (obviously) also rare-earth elements. With the availability of detailed abundance maps, complete atomic data, and detailed model atmospheres it has now become possible to simulate reliably the photometric variability due to rotation. This is demonstrated by the example of several CP stars. We generalise these result and discuss the importance of individual elements in terms of their dependence on effective temperature. We emphasise the importance of light curve prediction for testing surface abundance maps and the atomic data. ER -
KRTIČKA, Jiří, Zdeněk MIKULÁŠEK, Juraj ZVERKO a Milan PRVÁK. The origin of light variability in Ap stars. In G. Mathys, E. Griffin, O. Kochukhov, R. Monier, G. Wahlgren. \textit{Putting A Stars into Context: Evolution, Environment, and Related Stars}. Moskva, Rusko: Pero, 2014, s.~205-213. ISBN~978-5-00086-273-5.
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