November 21, 2021

The dwarf galaxy Pisces VII seen by DOLoRes (Image courtesy W. Boschin/TNG)

An article published in the journal “Monthly Notices of the Royal Astronomical” reports the confirmation of the discovery of the dwarf galaxy Pisces VII, which could be a satellite of the Triangulum galaxy. A team of researchers led by David Martínez-Delgado of the Instituto de Astrofisica de Andalucia used the DOLoRes instrument at the Galileo National Telescope to confirm the existence of Pisces VII, originally identified by the amateur astronomer Giuseppe Donatiello. The gravitational bond with the Triangulum galaxy has yet to be verified but if the outcome were positive it would be a confirmation of the theories concerning galaxy formation, which predict the presence of various satellite galaxies. The reference is to the Lambda-CDM model, which also concerns dark matter.