History - Prof Harold Linnartz and Laboratory for Astrophysics

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Lab for Astrophysics
The Laboratory for Astrophysics at Leiden Observatory was the first of its kind in the world. In 1975 the Laboratory was founded by Mayo Greenberg. He demonstrated the importance of accurate laboratory data to guide and interpret astronomical observations. Prof. Greenberg has been in charge of the laboratory for nearly a quarter century and was involved in the ongoing research until far after his retirement. Many well known scientists have been working under his supervision; Profs. d'Hendecourt, Ehrenfreund, Tielens, and Allamandola. Today, the Sackler Laboratory for Astrophysics is still a unique facility where astronomers, physicists and chemists meet and work together to simulate and understand inter- and circumstellar processes. Fingerprint spectra of molecular species of astrophysical interest are recorded, both in the gas phase and in the solid state, and solid state reaction pathways, both of rather small and complex molecules are studied using state-of-the-art experimental setups.
Mayo Greenberg has been in charge of the laboratory up to his retirement in 1992 after which Ewine van Dishoeck has been formally leading the laboratory until 2004. In this period much of the daily work was taken care of by Willem Schutte and Pascale Ehrenfreund. Stephan Schlemmer (now Cologne) has been heading the group for a short period after 2004. Since 2005 Harold Linnartz is in charge of the Laboratory and under his supervision it has been further expanding. With eight specialized setups, research is nowadays performed with a focus on transient species of astrophysical interest as well as the spectroscopy of interstellar ices and fundamental properties of atom and photon induced processes in interstellar ice analogues. More recently also the photodynamics of PAHs are studied. The laboratory has moved into the center of a number of large astrochemistry networks, specifically within NOVA, the Netherlands Research School for Astronomy, LASSIE and EUROPAH, two large European  FP7/H2020 projects, DAN, the Dutch Astrochemistry Network, and PEPSci, a network to study Planetary and ExoPlanetary Science. In 2009 Prof. Linnartz was awarded a 1.5 MEuro VICI grant to further 'Unlock the Chemistry of the Heavens'. The laboratory benefits much from scientific collaborations with other astrochemists - particularly the inhouse colleagues Profs. Tielens and van Dishoeck - who are very actively supporting ongoing research. 

Since its start in 1975, more than 30 PhD theses were completed in the Sackler Laboratory. With roughly 500 scientific publications the laboratory has substantially contributed to the understanding of the physics and chemistry of inter- and circumstellar processes. Currently it is one of the largest laboratories in astrophysics embedded in an academic observatory.

In 2014 the astrobiology lab group of Prof. Ehrenfreund has joined the laboratory. This now allows to perform research at the border lines of chemistry and biology, ultimately with the aim to answer the question how life came to Earth.
Private funding
In 1998 Dr. Raymond R. Sackler and his wife, Beverly, well known international philanthropists made a generous donation to the lab in a period that continuous funding became an issue. This grant helped to continue laboratory astrophysical research in Leiden until 2005, when the donation was fully consumed and other means became available. 

The laboratory benefits from ongoing support by the Greenberg family. Naomi Greenberg donated in 2003 money to support research visits of young scientists from developing countries. These means are still used to invite persons from all over the world to Leiden. In 2019 for a first time also LEAPS students will benefit from this grant. See the list with our Greenberg Fellows. 
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