Detached eclipsing binary star science in the 2040s

Fuente: arXiv
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Main Authors: Maxted, Pierre F. L., Bowman, Dominic M., Wilson, Thomas G., Rosu, Sophie, Stassun, Keivan G., Murphy, Simon J., Moharana, Ayush, Triaud, Amaury H. M. J., Hahlin, Axel, Southworth, John
Format: Preprint
Published: 2026
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author Maxted, Pierre F. L.
Bowman, Dominic M.
Wilson, Thomas G.
Rosu, Sophie
Stassun, Keivan G.
Murphy, Simon J.
Moharana, Ayush
Triaud, Amaury H. M. J.
Hahlin, Axel
Southworth, John
author_facet Maxted, Pierre F. L.
Bowman, Dominic M.
Wilson, Thomas G.
Rosu, Sophie
Stassun, Keivan G.
Murphy, Simon J.
Moharana, Ayush
Triaud, Amaury H. M. J.
Hahlin, Axel
Southworth, John
contents Detached eclipsing binary stars (DEBS) are currently the best source of accurate and precise fundamental stellar parameters. This makes DEBS crucial targets for constraining the impact of various physical processes on stellar structure and evolution. Long-period binaries are particularly interesting because their separation minimises interactions between the components. This makes long-period binaries more comparable to single stars. However, the current sample of DEBS with high precision stellar parameters are dominated by short-period systems (e.g. ~90% of the Gaia DR3 eclipsing binaries have periods < 5 days). Facilities capable of performing detailed studies of long-period DEBS will be essential to further improve our understanding of stellar structure and evolution. Such facilities would need to be able to obtain spectroscopic observations of more distant objects at high resolution and cadence. 2-8m class telescopes with echelle spectrographs and an ability to monitor a large sample of stars would be required.
format Preprint
id arxiv_https___arxiv_org_abs_2601_17179
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Detached eclipsing binary star science in the 2040s
Maxted, Pierre F. L.
Bowman, Dominic M.
Wilson, Thomas G.
Rosu, Sophie
Stassun, Keivan G.
Murphy, Simon J.
Moharana, Ayush
Triaud, Amaury H. M. J.
Hahlin, Axel
Southworth, John
Instrumentation and Methods for Astrophysics
Astrophysics of Galaxies
Solar and Stellar Astrophysics
Detached eclipsing binary stars (DEBS) are currently the best source of accurate and precise fundamental stellar parameters. This makes DEBS crucial targets for constraining the impact of various physical processes on stellar structure and evolution. Long-period binaries are particularly interesting because their separation minimises interactions between the components. This makes long-period binaries more comparable to single stars. However, the current sample of DEBS with high precision stellar parameters are dominated by short-period systems (e.g. ~90% of the Gaia DR3 eclipsing binaries have periods < 5 days). Facilities capable of performing detailed studies of long-period DEBS will be essential to further improve our understanding of stellar structure and evolution. Such facilities would need to be able to obtain spectroscopic observations of more distant objects at high resolution and cadence. 2-8m class telescopes with echelle spectrographs and an ability to monitor a large sample of stars would be required.
title Detached eclipsing binary star science in the 2040s
topic Instrumentation and Methods for Astrophysics
Astrophysics of Galaxies
Solar and Stellar Astrophysics
url https://arxiv.org/abs/2601.17179