Consequences of parameterization choice on eclipsing binary light curve solutions

Korth, J.; Moharana, Ayush; Pešta, Michal; Czavalinga, D. R.; Conroy, Kyle E.

doi:10.31577/caosp.2021.51.1.58

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…Overall, the students, tutors and lecturers did a great job. The results of the students projects are summarized in (Gajdoš et al, 2021;Maryeva et al, 2021;Korth et al, 2021;Merc et al, 2021, this proceedings).…”

Section: Discussionmentioning

confidence: 99%

“…Briefly, the exoplanet group revised the parameters of four transiting hot Jupiter planets by using PyTransit software (Parviainen, 2015) on the TESS data (Gajdoš et al, 2021). The binary group tested the robustness and accuracy of parameters using the soon to be released PHOEBE 2.3 EB modeling package (Conroy et al, 2020) on the TESS data of AI Phe (Korth et al, 2021). Project on stellar flares was focused on search for flare stars in 136 open clusters by using TESS light curves and utilizing GAIA data (Maryeva et al, 2021).…”

Section: The Projectsmentioning

confidence: 99%

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The GATE summer school

Skarka¹,

Janík²,

Paunzen³

et al. 2021

caosp

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Section: Discussionmentioning

confidence: 99%

Section: The Projectsmentioning

confidence: 99%

The GATE summer school

Skarka¹,

Janík²,

Paunzen³

et al. 2021

caosp

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“…Accuracy of less than 1% can be attained by coupling high-precision photometry and high-resolution spectroscopy (Torres et al 2010). The accuracy is robust and independent of different models and methods, even varying slightly due to different numerical implementations (Maxted et al 2020;Korth et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Detached Eclipsing Binaries in Compact Hierarchical Triples: Triple-lined systems BD+44 2258 and KIC 06525196

Moharana,

Hełminiak,

Marcadon

et al. 2023

Preprint

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Compact Hierarchical Triples (CHT) are systems with the tertiary star orbiting the inner binary in an orbit shorter than 1000 days. CHT with an eclipsing binary as its inner binary can help us extract a multitude of information about all three stars in the system. In this study, we use independent observational techniques to estimate the orbital, stellar, and atmospheric parameters of two triple-lined CHT: BD+44 2258 and KIC 06525196. We find that the masses of stars in BD+44 2258 are 1.011 ± 0.029𝑀 , 0.941±0.033𝑀 , and 0.907±0.065𝑀 while in KIC 06525196 the estimated masses are 1.0351±0.0055𝑀 , 0.9712±0.0039𝑀 , and 0.777 ± 0.012𝑀 . Using spectral disentangling, we obtained individual spectra of all the stars and combined it with light curve modelling to obtain radii, metallicities and temperatures. Using stellar evolution models from MESA, we constrain the log(age) of BD+44 2258 to be 9.89 and 9.49 for KIC 06525196. Two stars in BD+44 2258 are found to be sub-giants while all three stars in KIC 06525196 are main-sequence stars. We constrain the mutual inclinations to certain angles for BD+44 2258 and KIC 06525196 using numerical integration. Integrating with tidal interaction schemes and stellar evolution models, we find that KIC 06525196 is a stable system. But the inner binary of BD+44 2258 merges within 550 Myrs. The time of this merger is affected by the orientation of the tertiary, even rushing the collapse by ∼ 100 Myrs when the mutual inclination is close to 90 degrees.

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Detached eclipsing binaries in compact hierarchical triples: triple-lined systems BD+442258 and KIC 06525196

Moharana

Hełminiak

Marcadon

et al. 2023

Monthly Notices of the Royal Astronomical Society

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Compact Hierarchical Triples (CHT) are systems with the tertiary star orbiting the inner binary in an orbit shorter than 1000 days. CHT with an eclipsing binary as its inner binary can help us extract a multitude of information about all three stars in the system. In this study, we use independent observational techniques to estimate the orbital, stellar, and atmospheric parameters of two triple-lined CHT: BD+44 2258 and KIC 06525196. We find that the masses of stars in BD+44 2258 are 1.011 ± 0.029M⊙, 0.941 ± 0.033M⊙, and 0.907 ± 0.065M⊙ while in KIC 06525196 the estimated masses are 1.0351 ± 0.0055M⊙, 0.9712 ± 0.0039M⊙, and 0.777 ± 0.012M⊙. Using spectral disentangling, we obtained individual spectra of all the stars and combined it with light curve modelling to obtain radii, metallicities and temperatures. Using stellar evolution models from MESA, we constrain the log(age) of BD+44 2258 to be 9.89 and 9.49 for KIC 06525196. Two stars in BD+44 2258 are found to be sub-giants while all three stars in KIC 06525196 are main-sequence stars. We constrain the mutual inclinations to certain angles for BD+44 2258 and KIC 06525196 using numerical integration. Integrating with tidal interaction schemes and stellar evolution models, we find that KIC 06525196 is a stable system. But the inner binary of BD+44 2258 merges within 550 Myrs. The time of this merger is affected by the orientation of the tertiary, even rushing the collapse by ∼100 Myrs when the mutual inclination is close to 90 degrees.

show abstract

Consequences of parameterization choice on eclipsing binary light curve solutions

Cited by 3 publications

References 15 publications

The GATE summer school

The GATE summer school

Detached Eclipsing Binaries in Compact Hierarchical Triples: Triple-lined systems BD+44 2258 and KIC 06525196

Detached eclipsing binaries in compact hierarchical triples: triple-lined systems BD+442258 and KIC 06525196

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