ORBi: Randall Suzanna K. - Mode identification in rapidly pulsating subdwarf B stars from monochromatic amplitude- and phase variations

Reference : Mode identification in rapidly pulsating subdwarf B stars from monochromatic amplitude- ...


	Document type :	Scientific congresses and symposiums : Paper published in a journal
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/109218

Title :	Mode identification in rapidly pulsating subdwarf B stars from monochromatic amplitude- and phase variations
Language :	English
Author, co-author :	Randall, Suzanna K. [European Southern Observatory (ESO) > > > >]
	Van Grootel, Valérie [Université de Toulouse/Université de Montréal (UdeM) > > > >]
	Fontaine, Gilles [Université de Montréal - UdeM > > > >]
	Charpinet, Stéphane [Laboratoire d'Astrophysique de Toulouse-Tarbes (LATT) > > > >]
	Brassard, Pierre [Université de Montréal - UdeM > > > >]
Publication date :	Dec-2008
Journal title :	Communications in Asteroseismology
Publisher :	Verlag der Österreichischen Akademie der Wissenschaften
Volume :	157
Pages :	190
On invitation :	No
Audience :	International
ISSN :	1021-2043
City :	Wien
Country :	Austria
Event name :	Wroclaw Helas workshop
Event date :	du 23 au 27 juin 2008
Event organizer :	Uniwersytet Wroclawski
Event place (city) :	Wroclaw
Event country :	Pologne
Abstract :	[en] We present a mid-term report on a project aimed at partially identifying the main modes of pulsation in the rapidly pulsating subdwarf B star PG 1047+003. Using the unique HIT-MS mode on FORS2 at the VLT we obtained ˜3000 spectra spread over 4 consecutive half-nights with a typical sampling rate of 20 s. These will be used to extract monochromatic pulsation amplitudes and phases that can be fit to model predictions in order to determine the degree ℓ of the mode in question.
Permalink :	http://hdl.handle.net/2268/109218

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