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Unraveling interstellar chemistry with broadband microwave spectroscopy and next-generation telescope arrays

Total Cost €


EC-Contrib. €






 ASTROROT project word cloud

Explore the words cloud of the ASTROROT project. It provides you a very rough idea of what is the project "ASTROROT" about.

astrorot    chemistry    physical    stage    revolutionize    emission    detection    observations    experiments    variations    guide    frontier    physics    telescopes    mostly    impossible    complexity    telescope    edge    reactions    influence    cold    consuming    data    tremendously    universe    motivate    composition    molecule    exploration    abundances    spectroscopy    astrochemical    significantly    molecules    quality    times    waveguide    discovering    intermediates    unprecedentedly    pioneering    classes    molecular    interpretation    astronomic    techniques    rotational    abundance    exploring    mixture    identification    time    generation    accurate    laboratory    newly    microwave    cutting    spectrometers    combining    astrochemistry    excited    urgent    transition    mimic    fingerprints    previously    spectroscopic    exotic    chemical    broadband    speed    environment    space    advantages    isotopologues    jet    maps    prohibitively    temperatures    interstellar    intensities    evolution    array    compatibility   

Project "ASTROROT" data sheet

The following table provides information about the project.


Organization address
address: NOTKESTRASSE 85
postcode: 22607

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Project website
 Total cost 1˙499˙904 €
 EC max contribution 1˙499˙904 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-05-01   to  2020-04-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The goal of the research program, ASTROROT, is to significantly advance the knowledge of astrochemistry by exploring its molecular complexity and by discovering new molecule classes and key chemical processes in space. So far, mostly physical reasons were investigated for the observed variations in molecular abundances. We here propose to study the influence of chemistry on the molecular composition of the universe by combining unprecedentedly high-quality laboratory spectroscopy and pioneering telescope observations. Array telescopes provide new observations of rotational molecular emission, leading to an urgent need for microwave spectroscopic data of exotic molecules. We will use newly developed, unique broadband microwave spectrometers with the cold conditions of a molecular jet and the higher temperatures of a waveguide to mimic different interstellar conditions. Their key advantages are accurate transition intensities, tremendously reduced measurement times, and unique mixture compatibility. Our laboratory experiments will motivate and guide astronomic observations, and enable their interpretation. The expected results are • the exploration of molecular complexity by discovering new classes of molecules in space, • the detection of isotopologues that provide information about the stage of chemical evolution, • the generation of abundance maps of highly excited molecules to learn about their environment, • the identification of key intermediates in astrochemical reactions. The results will significantly foster and likely revolutionize our understanding of astrochemistry. The proposed research will go far beyond the state-of-the-art: We will use cutting-edge techniques both in the laboratory and at the telescope to greatly improve and speed the process of identifying molecular fingerprints. These techniques now enable studies at this important frontier of physics and chemistry that previously would have been prohibitively time-consuming or even impossible.


year authors and title journal last update
List of publications.
2019 Sébastien Gruet, Olivier Pirali, Amanda L. Steber, Melanie Schnell
The structural determination and skeletal ring modes of tetrahydropyran
published pages: 3016-3023, ISSN: 1463-9076, DOI: 10.1039/c8cp06204h
Physical Chemistry Chemical Physics 21/6 2019-09-04
2018 Leonid Surin, Ivan Tarabukin, Cristóbal Pérez, Melanie Schnell
Microwave spectra and nuclear quadrupole structure of the NH 3 –N 2 van der Waals complex and its deuterated isotopologues
published pages: 224305, ISSN: 0021-9606, DOI: 10.1063/1.5063346
The Journal of Chemical Physics 149/22 2019-09-05
2019 Alexander K. Lemmens, Sébastien Gruet, Amanda L. Steber, Jens Antony, Stefan Grimme, Melanie Schnell, Anouk M. Rijs
Far-IR and UV spectral signatures of controlled complexation and microhydration of the polycyclic aromatic hydrocarbon acenaphthene
published pages: 3414-3422, ISSN: 1463-9076, DOI: 10.1039/c8cp04480e
Physical Chemistry Chemical Physics 21/7 2019-09-05
2017 Benjamin E. Arenas, Sébastien Gruet, Amanda L. Steber, Barbara M. Giuliano, Melanie Schnell
Chirped-pulse Fourier transform millimeter-wave spectroscopy of ten vibrationally excited states of i-propyl cyanide: exploring the far-infrared region
published pages: 1751-1756, ISSN: 1463-9076, DOI: 10.1039/C6CP06297K
Phys. Chem. Chem. Phys. 19/3 2019-05-28
2017 Cristóbal Pérez, Amanda L. Steber, Anouk M. Rijs, Berhane Temelso, George C. Shields, Juan Carlos Lopez, Zbigniew Kisiel, Melanie Schnell
Corannulene and its complex with water: a tiny cup of water
published pages: 14214-14223, ISSN: 1463-9076, DOI: 10.1039/C7CP01506B
Physical Chemistry Chemical Physics 19/22 2019-05-28
2018 Sébastien Gruet, Cristóbal Pérez, Amanda L. Steber, Melanie Schnell
Where\'s water? The many binding sites of hydantoin
published pages: 5545-5552, ISSN: 1463-9076, DOI: 10.1039/C7CP06518C
Physical Chemistry Chemical Physics 20/8 2019-05-28
2017 Benjamin E. Arenas, Sébastien Gruet, Amanda L. Steber, Melanie Schnell
A global study of the conformers of 1,2-propanediol and new vibrationally excited states
published pages: 9-16, ISSN: 0022-2852, DOI: 10.1016/j.jms.2017.02.017
Journal of Molecular Spectroscopy 337 2019-05-28
2017 Amanda L. Steber, Cristóbal Pérez, Berhane Temelso, George C. Shields, Anouk M. Rijs, Brooks H. Pate, Zbigniew Kisiel, Melanie Schnell
Capturing the Elusive Water Trimer from the Stepwise Growth of Water on the Surface of the Polycyclic Aromatic Hydrocarbon Acenaphthene
published pages: 5744-5750, ISSN: 1948-7185, DOI: 10.1021/acs.jpclett.7b02695
The Journal of Physical Chemistry Letters 8/23 2019-05-28

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