A Spectroscopic Modelling Method for the Detached Eclipsing Binaries to Derive Atmospheric Parameters
arXiv:2209.10714 · doi:10.1051/0004-6361/202243487
Abstract
Based on luminosity contributions, we develop a spectroscopic modelling method to derive atmospheric parameters of component stars in binary systems. The method is designed for those spectra of binaries which show double-lined features due to the radial velocities differences between the component stars. We first derive the orbital parameters and the stellar radii by solving the light and radial velocity curves. Then the luminosity contributions in different phases can be calculated. The synthesised double-lined spectra model is constructed by superposing theoretical single-star spectra according to the luminosity contributions. Finally, we derive the atmospheric parameters of each component star by the model fitting method. For multi-epoch double-lined spectra observed by the Large sky Area Multi-Object Spectroscopic Telescope (LAMOST) Medium Resolution Survey (), our method gives robust results for detached eclipsing binary systems observed in different orbital phases. Furthermore, this method can also be applied to other spectroscopic data with different resolutions as long as the systems are detached eclipsing binaries with nearly spherical stars.
arXiv comment14 pages, 21 figures, accepted by A&A
References in corpus (31)
- emcee: The MCMC Hammer
- The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
- The Transiting Exoplanet Survey Satellite
- MESA Isochrones and Stellar Tracks (MIST). I: Solar-Scaled Models
- MESA Isochrones and Stellar Tracks (MIST) 0: Methods for the construction of stellar isochrones
- A Survey of Stellar Families: Multiplicity of Solar-Type Stars
- Stellar Multiplicity
- Kepler Mission Design, Realized Photometric Performance, and Early Science
- Characteristics of planetary candidates observed by Kepler, II: Analysis of the first four months of data
- The First Data Release (DR1) of the LAMOST general survey
- Gaia Data Release 2: Photometric content and validation
- The TESS Input Catalog and Candidate Target List
- Selection, Prioritization, and Characteristics of Kepler Target Stars
- Markov Chain Monte Carlo Methods for Bayesian Data Analysis in Astronomy
- The Payne: self-consistent ab initio fitting of stellar spectra
- Automatic Determination of Stellar Atmospheric Parameters and Construction of Stellar Spectral Templates of the Guoshoujing Telescope (LAMOST)
- A binary model for the UV-upturn of elliptical galaxies (MNRAS version)
- Instrument Performance in Kepler's First Months
- Population Synthesis of Binary Carbon-enhanced Metal-poor Stars
- Discovery and Characterization of 3000+ Main-Sequence Binaries from APOGEE Spectra
- Binary Population Synthesis
- The GALAH survey: The data reduction pipeline
- Precision Light Curves from TESS Full-Frame Images: A Difference Imaging Approach
- The contribution from stars stripped in binaries to cosmic reionization of hydrogen and helium
- Double-, triple-line spectroscopic candidates in the LAMOST Medium-Resolution Spectroscopic Survey
- The Spectroscopic Binaries from LAMOST Medium-Resolution Survey (MRS). I. Searching for Double-lined Spectroscopic Binaries (SB2s) with Convolutional Neural Network
- Population synthesis of accreting white dwarfs: II. X-ray and UV emission
- Exploring the spectral \textit{information content} in the LAMOST medium-resolution survey (MRS)
- Data preparation for asteroseismology with TESS
- Delayed Photons from Binary Evolution Help Reionize the Universe
- The GALAH survey: Multiple stars and our Galaxy. I. A comprehensive method for deriving properties of FGK binary stars