The evolutionary status of the chemically peculiar class of λ Boo stars has been intensely
debated. It is now agreed that the λ Boo phenomenon affects A stars of all ages, from star …

We have summarized all measurements for galactic field stars (1474 objects) from the
literature published over more than two decades. These measurements were, for the first …

The literature on the $\lambda $ Boo stars has grown to become somewhat heterogenous,
as different authors have applied different criteria across the UV, optical and infrared regions …

The λ Bootis stars are Population I, late B-to early F-type stars, with moderate to extreme (up
to a factor 100) surface underabundances of most Fe-peak elements and solar abundances …

The λ Bootis stars, a group of late B-to early F-type Population I stars, have surface
abundances that resemble the general metal depletion pattern found in the interstellar …

Generally, chemical peculiarity found for stars on the upper main sequence excludes δ Scuti
type pulsation (eg Ap and Am stars), but for the group of λ Bootis stars it is just the opposite …

Strong evidence for deep mixing has been uncovered for slowly rotating F and A stars of the
main sequence. As the accretion/diffusion model for the formation of λ Bootis stars is heavily …

Context. The existence of a group of λ Boo stars has been known for years, however, the
origin of its chemical peculiarity is still a matter of debate. Aims. Our aim is to test the …

The group of λ Bootis type stars comprises late B-to early F-type, Population I objects which
are basically metal weak, in particular the Fe group elements, but with the clear exception of …

The small group of λ Bootis stars comprises late B-to early F-type stars, with moderate to
extreme (up to a factor of 100) surface underabundances of most Fe-peak elements and …