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Classical Be Stars
Recent results for classical Be stars are reviewed and links to general astrophysics are presented. Classical Be stars are B-type stars close to the main sequence that exhibit line emission over theExpand
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On the binarity of Herbig Ae/Be stars
We present high-resolution spectro-astrometry of a sample of 28 Herbig Ae/Be and three F-type pre-main-sequence stars. The spectro-astrometry, which is essentially the study of unresolved features inExpand
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Triggered massive star formation in the vicinity of WR 48a
We utilise Midcourse Space Experiment mid-IR imaging and published data to discuss the (massive) star formation region at galactic longitude ∼305 ◦ , apparently associated with the Wolf Rayet WR 48aExpand
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Phylogenetic Relationships in Euphorbieae (Euphorbiaceae) Based on ITS and ndhF Sequence Data
The monophyly and phylogenetic relationships of the tribe Euphorbieae (Euphorbiaceae) were evaluated using separate weighted maximum parsimony analyses of nucleotide sequences of the nrDNA internalExpand
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Phylogeny of Opuntioideae (Cactaceae)
Opuntioideae are a diverse subfamily of Cactaceae with significant diversity of form and habitat and wide distribution throughout the New World. Nuclear ribosomal ITS and chloroplast trnL‐trnF regionExpand
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The circumstellar envelopes of Be stars: viscous disc dynamics
We have constructed models of axisymmetric, circumstellar envelopes for Be star discs by successfully combining two numerical codes: a non-local thermodynamic equilibrium (non-LTE) radiative transferExpand
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A Phylogenetic Classification of Polemoniaceae
Three hundred seventy nine species of Polemoniaceae are arranged in a phylogenetic classificat ion composed of three subfamilies, eight tribes. and 26 genera. Nomenclature of one tribe is clarifiedExpand
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