Deneb's variability: a hint of a deep-lying convection zone?
dc.contributor.author
Gautschy, Alfred
dc.date.accessioned
2021-05-27T13:35:44Z
dc.date.available
2021-05-27T13:35:44Z
dc.date.issued
2009-04
dc.identifier.issn
0004-6361
dc.identifier.issn
1432-0746
dc.identifier.other
10.1051/0004-6361/200911666
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/487046
dc.identifier.doi
10.3929/ethz-a-005793625
dc.description.abstract
During their post - main-sequence evolution, massive star models harbor a convection zone on top of their hydrogen burning shell. This physical property helps, under suitable circumstances, to destabilize low-degree nonradial modes that might explain the cyclic light variability of $\alpha $ Cygni variables. The results of first exploratory computations demonstrate that modes with periods ranging from about one dozen to several dozen days can be overstable in star models at about the position on the HR diagram where the prototype of the class, Deneb, is observed.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
EDP Sciences
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
Stars: supergiants
en_US
dc.subject
Stars: oscillations
en_US
dc.subject
Stars: evolution
en_US
dc.title
Deneb's variability: a hint of a deep-lying convection zone?
en_US
dc.type
Journal Article
dc.rights.license
In Copyright - Non-Commercial Use Permitted
dc.date.published
2009-03-05
ethz.journal.title
Astronomy & Astrophysics
ethz.journal.volume
498
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Astron. Astrophys.
ethz.pages.start
273
en_US
ethz.pages.end
279
en_US
ethz.size
7 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.code.ddc
DDC - DDC::5 - Science::520 - Astronomy, cartography
en_US
ethz.identifier.wos
ethz.publication.place
Les Ulis
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00025 - Bereich VP Infrastruk. u. Nachhaltigkeit / Domain VP Infrastruc. a. Sustainability::00060 - Abt. ETH-Bibliothek / ETH-Bibliothek
en_US
ethz.date.deposited
2017-06-08T22:19:46Z
ethz.source
ECOL
ethz.source
ECIT
ethz.identifier.importid
imp59366ad2b11c169738
ethz.identifier.importid
imp59364c6c7017896191
ethz.ecolpid
eth:41725
ethz.ecitpid
pub:28763
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-05-27T13:35:53Z
ethz.rosetta.lastUpdated
2022-03-29T08:18:21Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/151149
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/16842
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