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@article{490276,
author = {Kubát, Jiří and Krtička, Jiří and Pustylnik, Izold},
article_number = {9},
keywords = {Stars: early-type; Stars: coronae; Hydrodynamics; Stars: winds; outflows; Stars: emission-line; Be},
language = {eng},
issn = {1384-1076},
journal = {New Astronomy},
title = {Radiation induced coronal wind in late B stars},
url = {http://www.elsevier.com/PII/S138410760300160X},
volume = {2004},
year = {2004}
}
TY - JOUR
ID - 490276
AU - Kubát, Jiří - Krtička, Jiří - Pustylnik, Izold
PY - 2004
TI - Radiation induced coronal wind in late B stars
JF - New Astronomy
VL - 2004
IS - 9
SP - 215-224
EP - 215-224
SN - 13841076
KW - Stars: early-type
KW - Stars: coronae
KW - Hydrodynamics
KW - Stars: winds
KW - outflows
KW - Stars: emission-line
KW - Be
UR - http://www.elsevier.com/PII/S138410760300160X
N2 - Multicomponent radiatively driven winds in the late B stars cause significant heating of the layers just above the photosphere. These heated layers form a hot region - a corona, which may provide a significant fraction of energy necessary for the formation of a coronal wind driven by gas pressure. Fast rotation of this radiation induced coronal wind may cause the formation of the disk. Disk inhibition by nonradial line force would have only a little effect in this case, since the main driving mechanism is pressure gradient and not absorption in spectral lines. Finally, we show that this coronal region may be a site of significant X-ray emission which is able to explain observed X-ray activity of early B stars.
ER -
KUBÁT, Jiří, Jiří KRTIČKA a Izold PUSTYLNIK. Radiation induced coronal wind in late B stars. \textit{New Astronomy}. roč.~2004, č.~9, s.~215-224. ISSN~1384-1076. 2004.
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