The Spectroscopic Binaries from the LAMOST Medium-resolution Survey. I. Searching for Double-lined Spectroscopic Binaries with a Convolutional Neural Network

Zhang, Bo; Jing, Yingjie; Yang, Fan; Wan, Jun-Chen; X, Ji; Fu, Jian-Ning; Liu, Chao; Zhang, X. B.; Feng, Luo; Tian, Hao; Zhou, Yawen; Wang, Jiaxin; Guo, Y.; Zong, Weikai; Xiong, Jian-Ping; Li, Jiao

doi:10.3847/1538-4365/ac42d1

Cited by 20 publications

(13 citation statements)

References 80 publications

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“…HD 228903 was identified as a spectroscopic binary in the Large sky Area Multi-Object fiber Spectroscopic Telescope (LAMOST, Cui et al 2012) medium resolution survey (MRS, Zhang et al 2022) and nine radial velocity measurements are available. We use the photometric period and ephemeris to phase the radial velocity data as shown in Figure 10.…”

Section: Eclipsing Subdwarfmentioning

confidence: 99%

The value-added catalogue of ASAS-SN eclipsing binaries: parameters of 30 000 detached systems

Rowan

Jayasinghe

Stanek

et al. 2022

Monthly Notices of the Royal Astronomical Society

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Detached eclipsing binaries are a fundamental tool for measuring the physical parameters of stars that are effectively evolving in isolation. Starting from more than 40,000 eclipsing binary candidates identified by the All-Sky Automated Survey for Supernovae (ASAS-SN), we use PHOEBE to determine the sum of the fractional radii, the ratio of effective temperatures, the inclinations, and the eccentricities for 35,576 systems. We visually inspect all the light curve models to verify the model fits and examine the TESS light curves, when available, to select systems with evidence for additional physics, such as spots, mass transfer, and hierarchical triples. We examine the distributions of the eclipsing binary model parameters and the orbital parameters. We identify two groups in the sum of the fractional radii and effective temperature ratio parameter space that may distinguish systems approaching the semidetached limit. Combining Gaia EDR3 with extinction estimates from 3-dimensional dust maps, we examine the properties of the systems as a function of their absolute magnitude and evolutionary state. Finally, we present light curves of selected eclipsing binaries that may be of interest for follow-up studies.

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Section: Eclipsing Subdwarfmentioning

confidence: 99%

The value-added catalogue of ASAS-SN eclipsing binaries: parameters of 30 000 detached systems

Rowan

Jayasinghe

Stanek

et al. 2022

Monthly Notices of the Royal Astronomical Society

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“…The accuracy of T eff , log g, and [Fe/H] are around 119 K, 0.17 dex, and 0.06∼0.12 dex, respectively (Wang et al 2020). Furthermore, many eclipsing binaries with light curves (Slawson et al 2011;Jayasinghe et al 2021;Chen et al 2020) are identified from LAMOST survey (Li et al 2021a;Zhang et al 2022). These published data offer a unique opportunity to measure the dynamic mass and radius of more eclipsing binaries.…”

Section: Introductionmentioning

confidence: 99%

The Eclipsing Binaries from the LAMOST Medium-resolution Survey.III. A High-precision Empirical Stellar Mass Library

Xiong¹,

Liu²,

Li³

et al. 2022

Preprint

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High-precision stellar mass and radius measured directly from binaries can effectively calibrate the stellar models. However, such a database containing full spectral types and large range of metallicity is still not fully established. A continuous effort of data collecting and analysis are requested to complete the database. In this work, we provide a catalog containing 184 binaries with independent atmospheric parameters and accurate masses and radii as the benchmark of stellar mass and radius. The catalog contains 56 new detached binaries from LAMOST Medium-resolution spectroscopic (MRS) survey and 128 detached eclipsing binaries compiled from previous studies. We obtain the orbital solutions of the new detached binaries with uncertainties of masses and radii smaller than 5%. These new samples densify the distribution of metallicity of the high-precision stellar mass library and add 9 hot stars with T eff > 8000 K. Comparisons show that these samples well agree with the PARSEC isochrones in T eff -log g-mass-radius-luminosity space. We compare mass and radius estimates from isochrone and SED fitting, respectively, with those from the binary orbital solution. We find that the precision of the stellar-model dependent mass estimates is > 10% and the precision of the radius estimates based on atmospheric parameters is > 15%. These give a general view of the uncertainty of the usual approaches to estimate stellar mass and radius.

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“…The accuracies of T eff , logg, and [Fe/H] are around 119 K, 0.17 dex, and 0.06-0.12 dex, respectively (Wang et al 2020). Furthermore, many eclipsing binaries with light curves (Slawson et al 2011;Chen et al 2020;Jayasinghe et al 2021) are identified from the LAMOST survey (Li et al 2021a;Zhang et al 2022). These published data offer a unique opportunity to measure the dynamic mass and radius of more eclipsing binaries.…”

Section: Introductionmentioning

confidence: 99%

The Eclipsing Binaries from the LAMOST Medium-resolution Survey. III. A High-precision Empirical Stellar Mass Library

Xiong

Liu

et al. 2023

Self Cite

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High-precision stellar masses and radii measured directly from binaries can effectively calibrate stellar models. However, such a database containing full spectral types and a large range of metallicity is still not fully established. A continuous effort of data collection and analysis is requested to complete the database. In this work, we provide a catalog containing 184 binaries with independent atmospheric parameters and accurate masses and radii as the benchmark for stellar mass and radius. The catalog contains 56 new detached binaries from the LAMOST medium-resolution spectroscopic survey and 128 detached eclipsing binaries compiled from previous studies. We obtain the orbital solutions of the new detached binaries with uncertainties of masses and radii smaller than 5%. These new samples densify the distribution of metallicity of the high-precision stellar mass library and add nine hot stars with T eff > 8000 K. Comparisons show that these samples agree well with the PARSEC isochrones in T eff–logg–mass–radius–luminosity space. We compare mass and radius estimates from isochrone and spectral energy distribution fitting, respectively, with those from the binary orbital solution. We find that the precision of the stellar-model-dependent mass estimates is >10% and the precision of the radius estimates based on atmospheric parameters is >15%. These give a general view of the uncertainty of the usual approaches to estimate stellar mass and radius.

show abstract

The Spectroscopic Binaries from the LAMOST Medium-resolution Survey. I. Searching for Double-lined Spectroscopic Binaries with a Convolutional Neural Network

Cited by 20 publications

References 80 publications

The value-added catalogue of ASAS-SN eclipsing binaries: parameters of 30 000 detached systems

The value-added catalogue of ASAS-SN eclipsing binaries: parameters of 30 000 detached systems

The Eclipsing Binaries from the LAMOST Medium-resolution Survey.III. A High-precision Empirical Stellar Mass Library

The Eclipsing Binaries from the LAMOST Medium-resolution Survey. III. A High-precision Empirical Stellar Mass Library

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