The Unified Astronomy Thesaurus is an open, interoperable and community-supported thesaurus of astronomical and astrophysical concepts and their relationships.
Parent term "Low surface brightness galaxies" should not be changed, but should be enhanced with more NPTs as follows:
"ultra-diffuse galaxies"
"ultradiffuse galaxies"
"ultra diffuse galaxies"
UDG
Searches for all of the above exact forms yields results in ADS and as far as I can gather from researchers in the field it is synonymous with LSBG
Low surface brightness galaxies http://astrothesaurus.org/uat/940
Parent term "Low surface brightness galaxies" should not be changed, but should be enhanced with more NPTs as follows: "ultra-diffuse galaxies" "ultradiffuse galaxies" "ultra diffuse galaxies" UDG
Searches for all of the above exact forms yields results in ADS and as far as I can gather from researchers in the field it is synonymous with LSBG