#OTD 2020, publication of the discovery of the South Pole Wall. This 1.4 billion light-years wide filament was detected through the gravitational influence it exerts on nearby galaxies, for which we measured distance and velocity.

https://doi.org/10.3847/1538-4357/ab9952

#universe #cosmology #cosmicweb #darkmatter #galaxies #astronomy #astrophysics #southpolewall #space #science #milkyway #galaxy #aitoff #map #projection #cartography #astrodon

David Aitoff (1854-1933)

a Russian cartographer, who proposed the modified azimuthal map projection that bears his name: the Aitoff Projection
https://en.wikipedia.org/wiki/Aitoff_projection

This projection is the one we use in our cosmographic maps, as illustrated in the following thread ⤵️

#astronomy #astrophysics #cartography #cartographer #math #mathematics #aitoff #projection #cosmology #universe #galaxies #space #science #research #astrodon #map #maps

The South Pole Wall

This 1.4 billion light-years wide filament of the Cosmic Web was detected through the gravitational influence it exerts on nearby galaxies, for which we measured distance and velocity

Check out the story by science writer Becky Ferreira for Vice:
https://www.vice.com/en/article/xg8vg7/scientists-discovered-a-gigantic-structure-in-a-hidden-zone-of-space

research paper: https://doi.org/10.3847/1538-4357/ab9952

#universe #cosmology #cosmicweb #darkmatter #galaxies #astronomy #astrophysics #southpolewall #space #science #milkyway #galaxy #aitoff #map #projection #cartography