Detection of Tidally Excited Oscillations in Kepler Heartbeat Stars
arXiv:2309.05060 · doi:10.3847/1538-4357/ad18c1
Abstract
Heartbeat stars (HBSs) with tidally excited oscillations (TEOs) are ideal laboratories for studying the effect of equilibrium and dynamical tides. However, studies of TEOs in Kepler HBSs are rare due to the need for better modeling of the equilibrium tide in light curves. We revisit the HBSs in our previous work and study the TEOs in these HBSs based on the derived orbital parameters that could express the equilibrium tide. We also compile a set of analytic procedures to examine the harmonic and anharmonic TEOs in their Fourier spectra. The TEOs of 21 HBSs have been newly analyzed and presented. Twelve of these HBSs show prominent TEOs (signal-to-noise ratio of the harmonics ). The relation between the orbital eccentricities and the harmonic number of the TEOs shows a positive correlation. The relation between the orbital periods and the harmonic number also shows a positive correlation. Furthermore, the distribution of HBSs with TEOs in the Hertzsprung-Russell (H-R) diagram shows that TEOs are more visible in hot stars with surface effective temperatures 6500 K. These samples may also be valuable targets for future studies of the effect of tidal action in eccentric orbits.
arXiv commentPublished on ApJ
References in corpus (42)
- Gaia Data Release 2. Summary of the contents and survey properties
- The Gaia mission
- Modules for Experiments in Stellar Astrophysics (MESA)
- Modules for Experiments in Stellar Astrophysics (MESA): Giant Planets, Oscillations, Rotation, and Massive Stars
- Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions
- Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
- Modules for Experiments in Stellar Astrophysics (MESA): Convective Boundaries, Element Diffusion, and Massive Star Explosions
- Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation
- The First Data Release (DR1) of the LAMOST general survey
- Modules for Experiments in Stellar Astrophysics (MESA): Time-Dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure
- Revised Stellar Properties of Kepler Targets for the Quarter 1-16 Transit Detection Run
- Kepler Eclipsing Binary Stars. VII. The Catalog of Eclipsing Binaries Found in the Entire Kepler Data-Set
- Probing the interior physics of stars through asteroseismology
- A Class of Eccentric Binaries with Dynamic Tidal Distortions Discovered with Kepler
- KOI-54: The Kepler Discovery of Tidally-Excited Pulsations and Brightenings in a Highly Eccentric Binary
- KIC 4544587: an Eccentric, Short Period Binary System with delta Sct Pulsations and Tidally Excited Modes
- Heartbeat Stars, Tidally Excited Oscillations, and Resonance Locking
- Dynamical Tides in Eccentric Binaries and Tidally-Excited Stellar Pulsations in KEPLER KOI-54
- A heuristic derivation of the uncertainty of the frequency determination in time series data
- Tidal asteroseismology: Kepler's KOI-54
- Tidal Excitation of Modes in Binary Systems with Applications to Binary Pulsars
- KIC 4142768: An Evolved Gamma Doradus/Delta Scuti Hybrid Pulsating Eclipsing Binary with Tidally Excited Oscillations
- KIC 8164262: a Heartbeat Star Showing Tidally Induced Pulsations with Resonant Locking
- KIC 3749404: A heartbeat Star with Rapid Apsidal Advance Indicative of a Tertiary Component
- Massive heartbeat stars from TESS. I. TESS sectors 1-16
- Tidally Induced Pulsations in Kepler Eclipsing Binary KIC 3230227
- It takes a village to raise a tide: nonlinear multiple-mode coupling and mode identification in KOI-54
- Tidally Excited Oscillations in Heartbeat Binary Stars: Pulsation Phases and Mode Identification
- Accelerated Tidal Circularization Via Resonance Locking in KIC 8164262
- An Extreme Amplitude, Massive Heartbeat System in the LMC Characterized Using ASAS-SN and TESS
- The Loudest Stellar Heartbeat: Characterizing the most extreme amplitude heartbeat star system
- A New Window to Tidal Asteroseismology: Non-linearly Excited Stellar Eigenmodes and the Period Spacing Pattern in KOI-54
- Photometric Analysis of the OGLE Heartbeat Stars
- On the discrepancy between asteroseismic and Gaia DR1 TGAS parallaxes
- Observational properties of 155 O- and B-type massive pulsating stars
- The OGLE Collection of Variable Stars. One Thousand Heartbeat Stars in the Galactic Bulge and Magellanic Clouds
- Tidal Asteroseismology: Possible Evidence of Non-linear Mode Coupling in an Equilibrium State in Kepler Eclipsing Binary KIC 3230227
- Theoretical investigation of the occurrence of tidally excited oscillations in massive eccentric binary systems
- FX UMa: A New Heartbeat Binary System with Linear and Non-linear Tidal Oscillations and delta Sct Pulsations
- Four 'Peculiar' RRd Stars Observed by K2
- Discovery of an Outbursting 12.8 Minute Ultracompact X-Ray Binary
- Determination of rotation periods for a large sample of asteroids from K2 Campaign 9