Stars approaching the end of their lives expand and, in many cases, exchange material with close companions. This has a radical effect on their evolution and surface composition, producing a zoo of rare but highly exotic stars. By exploring the propertiesof thes pathological cases, we are endeavouring to understand the ways in which stars exhange matter and evolve towardstheir final fate as white dwarfs or supernovae. The stars in this programme are perfect examples — many of them have completelylost their surface hydrogen, for reasons still to be explained. These observations will tell us about the abundances of otherelements — previously we have discovered huge overabundances of exotic species such as lead and zirconium, and will explore how some of these stars may vary over time.
Scientific papers using data produced by SALT.View publications
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RECENT OBSERVATIONS *
Chemically peculiar Am stars observed by TESS satellite
Surface Chemistry of Peculiar Hot Subdwarfs
Long term programme: searching for new chemically peculiar stars in the southern hemisphere
* Observation titles do not imply any actual discoveries.View more observations