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Fundamental effective temperature measurements for eclipsing binary stars -- VIII. NIRPS spectroscopy of CD-27 2812
N. J. Adshead, P. F. L. Maxted, A. Hahlin
There are very few M-dwarfs with accurate independent measurements of their mass, radius and effective temperature (T) that can be used to test stellar models for these…
The PLATO Science Calibration and Validation Plan: Targets for the First Long-pointing Field
Konstanze Zwintz, Conny Aerts, Andrew Tkachenko +56
In order to meet the science goals of the PLATO space mission, an extensive science calibration and validation plan has been designed. This paper describes this plan, as well as th…
EBLM XVII - Tidal Synchronization and Circularization in Tight Stellar Binaries
Ritika Sethi, David V. Martin, Adrian Barker +7
Tidal interactions in close stellar binaries are central to their orbital and rotational evolution, making observational tests of theoretical predictions essential for our understa…
Fundamental effective temperature measurements for eclipsing binary stars - VII. The solar twin in LL Aquarii
N. J. Miller, P. F. L. Maxted, A. Hahlin +1
The eclipsing binary LL Aqr is a bright V = 9.32, detached system consisting of two solar-type stars in an eccentric orbit (P = 20.2 d). The secondary component, LL Aqr B, was prev…
The EBLM project XVI. Moderate spin-orbit misalignment of the low mass eclipsing binary EBLM J0021-16
Becca Spejcher, David V. Martin, Jake Pandina +15
Thousands of tight ( AU) main sequence binaries have been discovered, but it is uncertain how they formed. There is likely too much angular momentum in a collapsing, fragmentin…
Benchmark stars for mean stellar density and surface gravity estimates of solar-type stars
P. F. L. Maxted
Adding an independent estimate of the mean stellar density, , as a constraint in the analysis of stars that host transiting exoplanets can significantly improve the prec…