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Dynamics of the circumstellar gas in the Herbig Ae stars BF Orionis, SV Cephei, WW Vulpeculae and XY Persei
A. Mora, C. Eiroa, A. Natta +22
We present high resolution (lambda / Delta_lambda = 49000) echelle spectra of the intermediate mass, pre-main sequence stars BF Ori, SV Cep, WW Wul and XY Per. The spectra cover th…
The Young Stellar Group Associated with HD 199143
M. E. van den Ancker, M. R. Pérez, D. de Winter
Recently, several groups of young stars in the solar neighborhood have been discovered. Given their proximity, these systems are ideally suited for detailed studies of star and pla…
The central part of the young open cluster NGC 6383
M. E. van den Ancker, P. S. Thé, D. de Winter
The spectral and extinction properties of 14 pre-main sequence candidates in the central part of the very young open cluster NGC 6383 were investigated. None of these stars shows e…
The evolved B[e] star HD 87643 : observations and a radiation driven disk-wind model for B[e] stars
Rene Oudmaijer, Daniel Proga, Janet Drew +1
New high resolution spectroscopic and medium resolution spectropolarimetric data, complemented with optical broad and narrow band imaging, of the B[e] star HD 87643 are presented.…
Low-mass star formation in CG1: a diffraction limited search for pre-main sequence stars next to NX Pup
W. Brandner, J. Bouvier, E. K. Grebel +3
Using adaptive optics at the ESO 3.6m telescope, we obtained diffraction limited JHK-images of the region around the Herbig AeBe star NX Pup. We clearly resolved the close companio…