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THE ASTROCHEMICAL UNIVERSE UNVEILED WITH HERSCHEL

Image credits: Lars Kristensen (Leiden Observatory), with thanks to Spitzer-NASA/ESA/Caltech

Names of organizers:

Paola Caselli (Chair, University of Leeds), Frank Helmich (SRON), Brunella Nisini (INAF-Rome), Ewine van Dishoeck (Leiden Observatory)

Motivation

Since its launch in 2009, the Herschel Space Observatory has unveiled the far-IR window with its high sensitive instrumentation, collecting spectra of important molecules towards a variety of different objects: from comets to protoplanetary disks; from the diffuse interstellar medium and photodissociation regions (PDRs) to dense cloud cores; from star forming regions to the circumstellar environment of evolved stars; from local to early-universe galaxies. In doing so, new molecular species have been discovered; unbiased spectral surveys have unveiled an extraordinary rich chemistry; high spectral resolution line profiles of hydrates and important coolants such as water and carbon monoxide have revealed complex chemical/physical processes and shocked material. In summary, Herschel has emphasized the crucial role of astrochemistry in the whole astrophysical community. It is now time to summarize and compare the results obtained in different environments and to discuss their interpretation with the available models, with the aim of advancing our understanding of astrochemical processes in the universe.

Scientific Programme

This symposium consists of 5 blocks focused on Herschel spectroscopic and modelling results in different environments, plus one final block where astrochemical models will be presented and discussed. Schematically:

The six sections will allow different communities to present their major results and discuss together common problems linked to the interpretation of Herschel observations. The final block will be dedicated to the data interpretation and available models. Here, open questions, major problems and future developments for data interpretation techniques and chemical/physical models will be jointly discussed.

Confirmed Invited Speakers

Simon Bruderer, Sylvie Cabrit, Stephanie Cazaux, Jose Cernicharo, Leen Decin, Maryvonne Gerin, Javier Goicoechea, Paul Hartogh, Michiel Hogerheijde, Inga Kamp, Lars Kristensen, Bertrand Lefloch, Edo Loenen, Gwendolyn Meeus, Brunella Nisini, Eckhard Sturm, Serena Viti