Schuh, Sonja

[["dc.bibliographiccitation.firstpage","457"],["dc.bibliographiccitation.issue","3-4"],["dc.bibliographiccitation.journal","Astrophysics and Space Science"],["dc.bibliographiccitation.lastpage","464"],["dc.bibliographiccitation.volume","291"],["dc.contributor.author","O'Toole, S. J."],["dc.contributor.author","Falter, S."],["dc.contributor.author","Heber, Ulrich"],["dc.contributor.author","Jeffery, C. S."],["dc.contributor.author","Dreizler, Stefan"],["dc.contributor.author","Schuh, S. L."],["dc.date.accessioned","2018-11-07T10:52:04Z"],["dc.date.available","2018-11-07T10:52:04Z"],["dc.date.issued","2004"],["dc.description.abstract","We present the first results from the MultiSite Spectroscopic Telescope (MSST) observations of the sdBV star PG 1605+072. Pulsating sdB stars (also known as EC 14026 stars) offer the chance to gain new insights into the formation and evolution of extreme Horizontal Branch stars using the tools of asteroseismology. PG1605+072 is an outstanding object in its class, with the richest frequency spectrum, the longest periods, and the largest variations. The MSST campaign took place in May/June 2002 immediately following the Whole Earth Telescope Xcov22 run, which observed PG 1605+072 as an alternate target. We will first give an overview of the project and its feasibility, after which we will present the massive data set, made up of 399 h of photometry and 151 h of spectroscopy. The overall aims of the project are to examine light/velocity amplitude ratios and phase differences, changes in equivalent width/line index, and lambda-dependence of photometric amplitudes, and to use these properties for mode identification."],["dc.identifier.doi","10.1023/B:ASTR.0000044360.79737.38"],["dc.identifier.isi","000224389400041"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49036"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Kluwer Academic Publ"],["dc.publisher.place","Dordrecht"],["dc.relation.conference","Meeting on sdB Stars"],["dc.relation.eventlocation","Keele Univ, Staffordshire, ENGLAND"],["dc.relation.issn","0004-640X"],["dc.title","MSST observations of the pulsating sdB star PG 1605+072"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","321"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","BALTIC ASTRONOMY"],["dc.bibliographiccitation.lastpage","325"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Jeffery, C. S."],["dc.contributor.author","Heber, Ulrich"],["dc.contributor.author","Dreizler, Stefan"],["dc.contributor.author","O'Toole, S. J."],["dc.contributor.author","Schuh, S. L."],["dc.contributor.author","Woolf, Vincent M."],["dc.contributor.author","Falter, S."],["dc.contributor.author","Nitta, A."],["dc.contributor.author","Kleinman, S."],["dc.contributor.author","Krzesinski, J."],["dc.contributor.author","Billeres, M."],["dc.date.accessioned","2018-11-07T10:30:35Z"],["dc.date.available","2018-11-07T10:30:35Z"],["dc.date.issued","2006"],["dc.description.abstract","The MultiSite Spectroscopic Telescope (MSST) campaign aimed to provide a detailed view of the short-period pulsating subdwarf B star PC 1605+ 072. We present results from the part of the campaign undertaken on 4 m telescopes in 2002 May and June."],["dc.identifier.isi","000237216400026"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/43901"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Inst Theoretical Physics Astronomy"],["dc.publisher.place","Moletai"],["dc.relation.conference","2nd Meeting on Hot Subdwarf Stars and Related Objects"],["dc.relation.eventlocation","Santa Cruz de la Palma, SPAIN"],["dc.relation.issn","1392-0049"],["dc.title","The MSST campaign: 4 m spectroscopy of PG 1605+072"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","138"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","The Astrophysical Journal"],["dc.bibliographiccitation.lastpage","143"],["dc.bibliographiccitation.volume","711"],["dc.contributor.author","Irrgang, Andreas"],["dc.contributor.author","Przybilla, Norbert"],["dc.contributor.author","Heber, Ulrich"],["dc.contributor.author","Nieva, M. Fernanda"],["dc.contributor.author","Schuh, Sonja"],["dc.date.accessioned","2018-11-07T08:45:11Z"],["dc.date.available","2018-11-07T08:45:11Z"],["dc.date.issued","2010"],["dc.description.abstract","Young, massive stars in the Galactic halo are widely supposed to be the result of an ejection event from the Galactic disk forcing some stars to leave their place of birth as so-called runaway stars. Here, we present a detailed spectroscopic and kinematic analysis of the runaway B star HIP 60350 to determine which runaway scenario-a supernova explosion disrupting a binary system or dynamical interaction in star clusters-may be responsible for HIP 60350's peculiar orbit. Based on a non-local thermodynamic equilibrium approach, a high-resolution optical echelle spectrum was examined to revise spectroscopic quantities and for the first time to perform a differential chemical abundance analysis with respect to the B-type star 18 Peg. The results together with proper motions from the Hipparcos Catalog further allowed the three-dimensional kinematics of the star to be studied numerically. The abundances derived for HIP 60350 are consistent with a slightly supersolar metallicity agreeing with the kinematically predicted place of birth similar to 6 kpc away from the Galactic center. However, they do not exclude the possibility of an alpha-enhanced abundance pattern expected in the case of the supernova scenario. Its outstanding high Galactic rest-frame velocity of 530 +/- 35 km s(-1) is a consequence of ejection in the direction of Galactic rotation and slightly exceeds the local Galactic escape velocity in a standard Galactic potential. Hence, IIIP 60350 may be unbound to the Galaxy."],["dc.identifier.doi","10.1088/0004-637X/711/1/138"],["dc.identifier.isi","000274417500012"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20375"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Iop Publishing Ltd"],["dc.relation.issn","0004-637X"],["dc.title","THE NATURE OF THE HYPER-RUNAWAY CANDIDATE HIP 60350"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]