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Table · dataset · 2025

Multimode delta Scuti stars from ZTF

Listed in IVOA Registry (Virtual Observatory)

We obtain the largest catalog of multimode {delta} Sct stars in the northern sky to date using the Zwicky Transient Facility (ZTF) Data Release 20.

Description

The catalog includes 2254 objects, of which 2181 are new to our study. Among these multimode {delta} Sct stars, 2142 objects are double-mode {delta} Sct, while 109 objects are triple-mode {delta}Sct and three are quadruple-mode {delta} Sct.

By analyzing the light curves in the r and g bands of the ZTF, we determine the basic parameters of multimode {delta} Sct stars, including the periods and amplitudes. Periods are checked by comparison with the Optical Gravitational Lensing Experiment catalog of double-mode {delta} Sct stars. On the Petersen diagram, multimode {delta} Sct stars form six sequences.

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We find that in Galactic coordinates, the periods of 1O/F double-mode {delta} Sct stars at high latitudes are shorter than those of 1O/F double-mode {delta} Sct stars in the disk, due to metallicity variations. In the future, our catalog can be used to establish the period-luminosity relation and the period- metallicity relation of double-mode {delta} Sct stars, and to study the Galactic structure.

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Catalogue records · 2

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Provenance · 1 source records, 8 field assertions
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IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/apjs/273/714 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:opticalsource · IVOA Registryconnector:ivoa_registry@1.0.0
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0