2026ApJ...998..342K -
Astrophys. J., 998, 342 (2026/February-3)
Metal Pipe: A Broadly Applicable Stellar Abundance Pipeline Using Isochronal Parameters.
KOLECKI J.R. and WEISS L.M.
Abstract (from CDS):
Characterizing exoplanet host stars at the population level requires a method of homogeneously characterizing stellar properties across all spectral types. To this end, we have developed Metal Pipe, a new code for determining stellar parameters and abundances, which is designed for use across a wider range of spectral types than many commonly used codes. It combines the widely used package MOOG with photometric stellar parameters, a user-supplied high-resolution spectrum, and a newly curated list of spectral lines. Metal Pipe outputs values for Teff, ${\mathrm{log}}(g)$, M*, R*, and L* from isochrones, and the abundances of C, O, Na, Mg, Al, Si, S, Ca, Ti, and Fe from MOOG. In this paper, we describe the Metal Pipe algorithm and tests of Metal Pipe against previous abundance measurements on archival HIRES spectra of 503 F-, G-, and K-type stars. We find rms scatter of ∼100 K in Teff, ∼0.10 dex in ${\mathrm{log}}(g)$, and ∼0.10 dex for all measured abundances. These values are comparable to the estimated measurement uncertainties, verifying Metal Pipe for continued use in building a detailed abundance catalog. Future papers in this series will test Metal Pipe's applicability to late-K and M dwarf stars, and provide other improvements.
Abstract Copyright:
© 2026. The Author(s). Published by the American Astronomical Society.
Journal keyword(s):
Stellar abundances - Planet hosting stars - Exoplanets
Status at CDS
:
Large table(s) will be appraised for possible ingestion in VizieR.
Simbad objects:
505
Full paper
View the references in ADS
To bookmark this query, right click on this link: simbad:2026ApJ...998..342K and select 'bookmark this link' or equivalent in the popup menu