Showing astro-phShow all
3 papers · 1 filter
astro-ph2004
Processed and unprocessed ices in circumstellar disks
K. Pontoppidan, E. Dartois, W. -F. Thi +1
We present 3-5 micron VLT-ISAAC spectroscopy searching for evidence of methanol ices in edge-on disks of young embedded stars. Examples include the disks of L1489 IRS in Taurus and…
astro-ph2003
Search for solid HDO in low-mass protostars
B. Parise, T. Simon, E. Caux +4
We present ground-based 2.1 to 4.2 microns observations of four low-mass protostars. We searched for the 4.1 microns OD stretch band, characteristic of solid HDO in grain mantles.…
astro-ph2003
A 3-5 micron VLT spectroscopic survey of embedded young low mass stars I: Structure of the CO ice
K. M. Pontoppidan, H. J. Fraser, E. Dartois +6
Medium resolution (lambda/Delta lambda = 5000-10000) VLT-ISAAC M-band spectra are presented of 39 young stellar objects in nearby low-mass star forming clouds showing the 4.67 micr…