10 papers
[O I] 6300 A Emission from Disks Around Herbig Ae/Be Stars
M. E. van den Ancker, B. Acke, C. P. Dullemond
We present high spectral-resolution optical spectra of 49 Herbig Ae/Be stars in a search for the [O I] 6300.2 A line. The vast majority of the stars in our sample show narrow (FWHM…
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…
Protoplanetary disks around Herbig Ae/Be stars: Indications from ISO spectroscopy
M. E. van den Ancker
An analysis of solid-state features in infrared spectra of 46 Herbig Ae/Be stars is presented. The presence of solid-state emission bands is compared to other indicators of circums…
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…
ISO Observations of Pre-Main Sequence and Vega-type Stars
M. E. van den Ancker
I present an overview of the results obtained by the Infrared Space Observatory (ISO) on circumstellar material in pre-main sequence (PMS) stars. Results obtained for embedded YSOs…
ISO spectroscopy of circumstellar dust in the Herbig Ae systems AB Aur and HD 163296
M. E. van den Ancker, J. Bouwman, P. R. Wesselius +3
Using both the Short- and Long-wavelength Spectrometers on board the Infrared Space Observatory (ISO), we have obtained infrared spectra of the Herbig Ae systems AB Aur and HD 1632…