Table · dataset · 2021
O-C values of KIC10975348 with Kepler Space Telescope
Listed in IVOA Registry (Virtual Observatory)
In this paper, we analyze the light variations of KIC10975348 using photometric data delivered from the Kepler mission.
Description
This star is exceptionally faint (Kp=18.6mag) compared to most well-studied {delta}Scuti stars. The Fourier analysis of the short-cadence data (i.e., Q14, Q15, and Q16, spanning 220days) reveals that the variations are dominated by the strongest mode with a frequency of F0=10.231899/day, which is compatible with that obtained from RATS-Kepler.
The other two independent modes with F1(=13.4988/day) and F2(=19.0002/day) are newly detected and have amplitudes two orders of magnitude smaller than F0. We note that, for the first time, this star is identified to be a high-amplitude {delta}Sct (HADS) star with an amplitude of about 0.7mag, and the lower ratio of F0/F1=0.758 suggests that it might be a metal-rich variable star. The frequency F2 may be a third overtone mode, suggesting that this target might be a new radial triple-mode HADS star.
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We perform an O-C analysis using 1018 newly determined times of maximum light and derive an ephemeris formula of Tmax=2456170.241912(0)+0.097734(1)xE. The O-C diagram shows that the pulsation period of KIC10975348 seems to show no obvious change, which is in contrast to that of the majority of HADS stars. The possible cause of that may be due to the current short time span of the observations.
To verify its possible period variations, regular observation from space with a longer time span in the future is needed.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/161/27 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2021AJ....161...27Y ui.adsabs.harvard.edu/abs/2021AJ....161...27Y ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/aj/161/27 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/aj/161/27 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |