A parsec-scale Galactic 3D dust map out to 1.25 kpc from the Sun

Understand

High-resolution 3D maps of interstellar dust are critical for probing the underlying physics shaping the structure of the interstellar medium, and for foreground correction of astrophysical observations affected by dust.

• We aim to construct a new 3D map of the spatial distribution of interstellar dust extinction out to a distance of 1.25 kpc from the Sun.
• We leveraged distance and extinction estimates to 54 million nearby stars derived from the Gaia BP/RP spectra.
• Using the stellar distance and extinction information, we inferred the spatial distribution of dust extinction.