New ultracool and halo white dwarf candidates in SDSS Stripe 82
New ultracool and halo white dwarf candidates in SDSS Stripe 82
A region along the celestial equator (Stripe 82) has been imaged repeatedly from 1998 to 2005 by the Sloan Digital Sky Survey (SDSS). A new catalogue of ∼4 million light-motion curves, together with over 200 derived statistical quantities, for objects in Stripe 82 brighter than r∼21.5 has been constructed by …