![MK0 − Teff plane (upper left left) and Gaia photometry color-magnitude diagram (upper right, bottom left and bottom right) for stars in APOGEE DR17. The local sample of dwarfs is highlighted by the color-code in age (upper panels) [α/Fe] (bottom left) and [Fe/H] (bottom right), while the rest of the stars (within 2 kpc from the Sun) is under plotted in gray. In the bottom panels we additionally over-plot young alpha-rich candidates we find in our sample (see Section 3). The details about the correction for reddening and extinction of the 2MASS and Gaia photometry are given in the text. -- astro-ph.GA](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/05/The-Chemical-Enrichment.png?resize=1200%2C718&ssl=1)
The variation of metal production over time and its dilution in the interstellar medium depend on the star formation and gas accretion rates.
APOGEE DR17
Posted inAstrochemistry, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Space Weather & Heliophysics, Status Report
Connections Between Planetary Populations And The Chemical Characteristics Of Their Host Stars
Chemical anomalies in planet-hosting stars (PHSs) are studied in order to assess how the planetary nature and multiplicity affect the atmospheric chemical abundances of their host stars.