Image Details
Caption: Figure 2.
Images of the dust emission (7080–7120 Å) from 2I/Borisov before and after the application of the starkiller pipeline. 2I was within 10 degrees of the Galactic plane on 2020 February 2 and 2020 March 19, and the FOV for each exposure contained between 80 and 136 stars brighter than 21st magnitude in GAIA-G. More significant improvement occurred for the 2020 March 19 data: the number of usable exposures (without a star directly behind 2I) increased from 2 to 3 due to starkilller, allowing for improved median coadding and the removal of more stars. Both rows show the maps with a square root stretch, and the contour levels in the bottom row illustrate the reduction of star flux to below the signal from the coma.
© 2026. The Author(s). Published by the American Astronomical Society.