Pulsating components in EBs from TESS

DOI

Based on 2 minute cadence TESS data from sectors 1-50, we report the results of the systematic extraction of {delta} Scuti-type pulsations in the 6431 eclipsing binaries with orbital periods shorter than 13days. A total number of 242 pulsators were found in those systems, including 143 new discoveries. We examined their pulsation properties based on the H-R diagram and the relationships between the dominant pulsation period Pdom, orbital period Porb, and effective temperature Teff. As a consequence, 216 targets are likely {delta} Scuti stars (123 new), 11 likely {gamma} Doradus-{delta} Scuti hybrid stars (8 new), 5 likely {beta} Cephei stars (4 new), 4 likely {delta} Scuti-{gamma} Doradus hybrid stars (3 new), 3 likely Maia stars (3 new), 2 likely pulsating red giants (1 new), and a new unclassified star. As for the six new {delta} Scuti pulsators in eclipsing binaries with P_orb_<0.65d, we found that three of them significantly exceed the upper limits of the Pdom/Porb ratio. This may indicate that Pdom and Porb are uncorrelated for them. Finally, we statistically analyzed the dominant pulsation periods of the 216 {delta} Scuti stars in eclipsing binaries. Those stars concentrate around 225{mu}Hz and the proportion of stars in the high-frequency region is significantly higher than that of single stars, which could be ascribed to the mass-transfer process.

Cone search capability for table J/ApJS/263/34/table1 (Parameters of systems that exhibit pulsations)

Identifier
DOI http://doi.org/10.26093/cds/vizier.22630034
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/263/34
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/263/34
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/263/34
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/263/34
Provenance
Creator Chen X.; Ding X.; Cheng L.; Zhang X.; Li Y.; Ji K.; Xiong J.; Li X.,Luo C.
Publisher CDS
Publication Year 2023
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