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New Short-Period δ Scuti Stars in OGLE-IV Fields toward the Galactic Bulge

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dc.abstract.enWe report the classification of 24 puzzling short-period variable stars located in OGLE-IV Galactic bulge fields. The stars are low-amplitude (<0.05 mag) multi-periodic objects with dominant periods between 22 min and 54 min whose type could not have been unambiguously established based on photometry only. A low-resolution spectroscopic follow-up observations have shown that all the objects are main sequence A/F-type stars. Thus, all the variables are δ Sct-type pulsators. We have added them to the OGLE-IV Collection of Variable Stars.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorPietrukowicz, Paweł
dc.contributor.authorRatajczak, Milena
dc.contributor.authorSoszyński, Igor
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorSzymański, Michał
dc.contributor.authorUlaczyk, Krzysztof
dc.contributor.authorPoleski, Radosław
dc.contributor.authorKozłowski, Szymon
dc.contributor.authorSkowron, Jan
dc.contributor.authorSkowron, Dorota
dc.contributor.authorMróz, Przemysław
dc.contributor.authorRybicki, Krzysztof
dc.contributor.authorIwanek, Patryk
dc.contributor.authorWrona, Marcin
dc.contributor.authorGromadzki, Mariusz
dc.date.accessioned2024-01-25T13:48:43Z
dc.date.available2024-01-25T13:48:43Z
dc.date.copyright2022-12-14
dc.date.issued2022
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number3
dc.description.versionORIGINAL_AUTHOR
dc.description.volume72
dc.identifier.doi10.32023/0001-5237/72.3.1
dc.identifier.issn0001-5237
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/113622
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2022AcA....72..161P
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofActa Astronomica
dc.relation.pages161-170
dc.rightsOther
dc.sciencecloudnosend
dc.titleNew Short-Period δ Scuti Stars in OGLE-IV Fields toward the Galactic Bulge
dc.typeJournalArticle
dspace.entity.typePublication