The origin of light variability in Ap stars
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00074457" target="_blank" >RIV/00216224:14310/14:00074457 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The origin of light variability in Ap stars
Original language description
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 redistributionis 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.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP209%2F12%2F0217" target="_blank" >GAP209/12/0217: Multispectral variability of hot stars and its nature</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Putting A Stars into Context: Evolution, Environment, and Related Stars
ISBN
9785000862735
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
205-213
Publisher name
Pero
Place of publication
Moskva, Rusko
Event location
Moskva, Rusko
Event date
Jan 1, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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