Contents

• 0 In memoriam Hendrik van de Hulst
  
  
• 1 Review of major events
  
  
• 2 Research highlights
  • 1 The solar system
    • 1 The outer solar system
    • 2 Asteroids
  • 2 Stars and circumstellar matter
    • 1 S Dor variables
    • 2 Runaway stars
    • 3 Young stellar groups and OB associations
    • 4 Dust disks around young stars
    • 5 Main sequence and old stars
  • 3 Interstellar matter
  • 4 The Galaxy
    • 1 The stellar halo
  • 5 Nearby galaxies
    • 1 DENIS survey of the Magellanic Clouds
    • 2 Ram pressure and shell formation in HolmbergII
    • 3 The elusive active nucleus of NGC 4945
    • 4 Molecular gas and dust in NGC 7469
    • 5 Molecular gas in the centres of NGC 6946 and M83
    • 6 Disc-halo interaction in nearby galaxies
    • 7 Dynamical modelling of elliptical galaxies
    • 8 Hydrodynamical modelling of star formation in colliding galaxies
  • 6 Active galaxies and distant galaxies
    • 1 Radio-loud galaxies
    • 2 Towards interferometric observations of nearby Active Galactic Nuclei
    • 3 Fundamental Plane of early type galaxies
    • 4 The nature of Extremely Red Objects
    • 5 FIRES
    • 6 H$\alpha$ and dust emission from starburst galaxies in the Hubble Deep Field South
    • 7 Star forming galaxies at $z\sim$ 2.2
    • 8 A new sample of faint CSS radio sources
    • 9 Emission line gas of $z\sim$1 radio galaxies
    • 10 Extremely distant radio galaxies and their emission line properties
  • 7 Clusters of galaxies and large scale structure
    • 1 Weak lensing of low mass groups
    • 2 The ENACS cluster survey
    • 3 A proto cluster around the powerful radio galaxy PKS 1138-262 at z =2.156
  • 8 Molecular astrophysics
    • 1 Tracing the evolution of high-mass protostars
    • 2 The cosmic ray ionization rate toward massive protostars
    • 3 Detection of highly abundant, hot HCN in massive protostars
    • 4 H$_2$O and O$_2$ in clumpy molecular clouds
    • 5 H$_2$emission from disks around pre-main sequence and Vega-type stars
    • 6 Chemistry in circumstellar disks
    • 7 The gas temperature of disks around A-stars
    • 8 SIRTF legacy program
  • 9 Raymond & Beverly Sackler Laboratory
    • 1 Low-temperature crystallization
    • 2 The origin of the 6.85 $\mu$m feature
    • 3 Extraterrestrial amino acids in the Orgueil meteorite: a cometary origin?
    • 4 The photostability of amino acids in space
    • 5 Analysis of organic material produced by photolysis of interstellar ice analogues
    • 6 SURFRESIDE
    • 7 CRYOPAD
  • 10 Projects: Theory, instrumentation and surveys
    • 1 General purpose hydro-code in three dimensions
    • 2 NOVA-ESO VLTI Expertise Centre (NEVEC)
    • 3 Darwin
    • 4 OmegaCam camera for the VLT Survey Telescope (VST)
    • 5 SAURON
    • 6 SINFONI
    • 7 The DENIS survey
    • 8 The European Large Area ISO Survey (ELAIS)
    • 9 ESA's STJ detector
    • 10 IFMOS
    • 11 HIPPARCOS and GAIA
    • 12 SETI
  • 11 History of astronomy
  
  
• 3 Education, popularization and social events
  • 1 Educational matters
    • 1 Organization
    • 2 Graduate School
    • 3 Bachelors/Masters Programme
    • 4 Enrollment
  • 2 Degrees awarded in 2000
    • 1 Master's degrees (``doctoraal diploma's'')
    • 2 Ph.D. degrees
  • 3 Courses and teaching activities
    • 1 Regular courses given by the observatory staff in 2000
    • 2 Astronomy and Physics Kaleidoscope
    • 3 Oort graduate lectures: galaxies in the infrared: from hardware to results
  • 4 Popularization and media contacts
  • 5 The ``Leidsch Astronomisch Dispuut `F. Kaiser' ''
    • 1 ``Studentenlezingen''
    • 2 Tours old observatory
  
  
• A. Observatory staff December 31, 2000
  
  
• B. Committee membership
  • 1 Observatory committees
  • 2 University committees
  
  
• C. Science policy functions
  
  
• D. Visiting scientists
  
  
• E. Lectures, colloquia and workshops
  • 1 Endowed lectures
  • 2 Scientific colloquia
  • 3 Student colloquia
  • 4 Workshops
    • 1 Oort Workshop 2000
    • 2 NOVA/LEIDEN/NEVEC/ESO/ESA Workshop: Summer school on Space and Ground based Optical & Infrared Interferometry
    • 3 ALMA Science Advisory Committee Meeting
    • 4 FIRST-HIFI Consortium Meeting
    • 5 ALMA Science and Technology Day
    • 6 Star Formation with the SIRTF satellite
    • 7 Modelling Interstellar Chemistry
    • 8 ISOGAL coordination
  
  
• F. Participation in scientific meetings
  
• G. Observing sessions abroad
  
• H. Working visits abroad
  
• I. Colloquia given outside Leiden
  
• J. Scientific publications
  • 1 Ph.D. theses, books and catalogues
  • 2 Papers in refereed journals
  • 3 Review articles, conference papers, etc.
  • 4 Popular articles
  • 5 Awards
  
  
• K. Phone-, room numbers and e-mail addresses