Infrared Excesses around Bright White Dwarfs from Gaia and unWISE I
  Studies of excess infrared radiation around white dwarfs provide important
constraints on the evolution of planetary systems and low-mass stars beyond the
main sequence stage. In this paper series, we focus on identifying and
characterizing bright white dwarfs with an infrared excess. Here, we present
188 infrared excess candidates from Gaia and unWISE, 147 of which are new
discoveries. Further characterization of this sample can significantly increase
the current list of white dwarf debris disks and white dwarfs with low-mass
companions.
