High-frequency A-type pulsators

DOI

We present the results of a survey using the WASP archive to search for high-frequency pulsations in F-, A- and B-type stars. Over 1.5 million targets have been searched for pulsations with amplitudes greater than 0.5 millimagnitude. We identify over 350 stars which pulsate with periods less than 30min. Spectroscopic follow-up of selected targets has enabled us to confirm 10 new rapidly oscillating Ap stars, 13 pulsating Am stars and the fastest known {delta} Scuti star. We also observe stars which show pulsations in both the high-frequency domain and the low-frequency {delta} Scuti range. This work shows the power of the WASP photometric survey to find variable stars with amplitudes well below the nominal photometric precision per observation.

Cone search capability for table J/MNRAS/439/2078/pulsetab (Pulsation frequencies and amplitudes (table5) of A-type observed with SupwerWASP)

Identifier
DOI http://doi.org/10.26093/cds/vizier.74392078
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/439/2078
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/439/2078
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/439/2078
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/439/2078
Provenance
Creator Holdsworth D.L.; Smalley B.; Gillon M.; Clubb K.I.; Southworth J.,Maxted P.F.L.; Anderson D.R.; Barros S.C.C.; Cameron A.C.; Delrez L.,Faedi F.; Haswell C.A.; Hellier C.; Horne K.; Jehin E.; Norton A.J.,Pollacco D.; Skillen I.; Smith A.M.S.; West R.G.; Wheatley P.J.
Publisher CDS
Publication Year 2014
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy