SIMBAD references

2018ApJ...862...53S - Astrophys. J., 862, 53-53 (2018/July-3)

Measuring model-independent masses and radii of single-lined eclipsing binaries: analytic precision estimates.

STEVENS D.J., GAUDI B.S. and STASSUN K.G.

Abstract (from CDS):

We derive analytic estimates for the ability with which one can obtain precise, empirical stellar masses and radii via single-lined eclipsing binaries (EBs) in the era of Gaia and TESS. Including stars that host transiting substellar companions, such single-lined EBs already number in the hundreds from ground-based transit surveys and will comprise a major component of the science yield from the upcoming TESS mission. We explore the requirements for obtaining a given fractional precision on the masses and radii of single-lined EBs using primarily empirical means: radial velocity and eclipse measurements along with estimates of the primary's (1) surface gravity from high-resolution spectroscopy; (2) radius inferred from parallax, effective temperature, and bolometric flux; or (3) surface gravity and density from asteroseismology. We then compare these requirements to the precision obtained from invoking stellar models or empirical relations. We show that, for a fiducial transiting hot Jupiter system, precise, accurate, and essentially model-independent mass and radius measurements for such single-lined EBs will be possible in the era of Gaia. These will be comparable in precision to those obtained with double-lined EBs. Moreover, the systems for which these methods can be applied will vastly outnumber double-lined EBs, thereby possessing the potential to sample a more complete range of stellar types (such as M dwarfs); these systems will also, in many cases, be more amenable to precision metallicity and abundance determinations than are double-lined EBs.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: eclipsing - methods: analytical - planetary systems

Simbad objects: 13

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2021.05.17-07:00:50

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