Sentences with phrase «stellar isochrones»
The catalog is based on a compilation of literature values for atmospheric properties (temperature, surface gravity, and metallicity) derived from different observational techniques (photometry, spectroscopy, asteroseismology, and exoplanet transits), which were then homogeneously fitted to a grid of Dartmouth stellar isochrones.
https://arxiv.org/
We compare these values to model stellar isochrones to constrain the stellar mass to be M * = 1.22 + / - 0.17 Msun.
Not exact matches
Although our revised temperatures are generally consistent with those reported in the Ecliptic Plane Input Catalog (EPIC), our revised stellar radii are typically 0.13 solar radii (39 %) larger than the EPIC values, which were based on model isochrones that have been shown to underestimate the radii of cool dwarfs.
We use spectroscopic data from a variety of large surveys combined with infra - red photometry from 2MASS and AllWISE and compare these in a Bayesian manner with PARSEC isochrones to derive probability density functions (PDFs) for stellar masses, ages and distances.