| |
1986-1991
|
Near-Infrared
Speckle-Interferometry: |
| |
|
|
methodical
improvements, |
| |
|
|
image
reconstructions, |
| |
|
|
development of new
seeing criteria |
| |
|
Astronomical
results: |
| |
|
|
on duplicity of and
haloes around T Tauri Stars and Herbig Ae/Be
stars |
| |
|
|
Infrared Companions
|
| |
|
|
Planetary nebulae:
the Red Rectangle |
| |
|
|
on duplicity and
extend of galaxy nuclei: NGC 6240, Arp 220, NGC
1068 |
| |
|
|
|
| |
1991-1992
|
Groups of galaxies: |
| |
|
|
Luminosity function
of group members versus non-members in the CfA redshift survey |
| |
|
|
Selection effects |
| |
|
Redshift of the
faint blue galaxies: Optical
spectroscopy |
| |
|
|
| |
since 1996
|
Far-infrared and sub-mm
emission from dust in galaxies: |
| |
|
|
Interstellar Matter |
| |
|
|
Early
phases of star formation |
| |
|
|
Nearby galaxies M31, M51, M101, NGC205, SMC |
| |
|
|
Colliding galaxy pairs:
Arp244 |
| |
|
|
PAHs (Polycyclic Aromatic
Hydrocarbonates) in galaxies |
| |
|
|
Ultraluminous infrared
galaxies |
| |
|
|
Quasars: thermal versus
synchrotron nature of the far-infrared emission |
| |
|
|
Radio galaxies:
geometric unification with quasars |
| |
|
|
Hidden Quasars: new
mid-infrared extinction tool |
| |
|
|
Evolution
of dust emission in quasars |
| |
|
|
