Our main knowledge about astrophysical environments relies on radiative spectra.
Absorption studies require background sources that are located hapharzadly in …

The physical and chemical processes leading to the formation of molecules in the interstellar
medium (ISM) sthe vast voids between the starssfascinated scientists since the first detection …

To date, 204 individual molecular species, comprised of 16 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

To date, 241 individual molecular species, composed of 19 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

We present the fifth release of the UMIST Database for Astrochemistry (UDfA). The new
reaction network contains 6173 gas-phase reactions, involving 467 species, 47 of which are …

Based on a novel laboratory method, 14 millimeter-wave lines of the molecular ion H 2
CCCH+ have been measured in high resolution, and the spectroscopic constants of this …

The mm-wave spectrum of the C-star envelope IRC+ 10216 has been continuously
surveyed between 129.0 and 172.5 GHz with the IRAM 30-m telescope. 380 lines are …

We study the influence of transport processes on the chemical evolution of DM Tau-like
protoplanetary disks. Turbulent transport of gases and ices is implicitly modeled in full two …

Context. Detailed astrochemical models are a key component to interpret the observations of
interstellar and circumstellar molecules since they allow important physical properties of the …

We have detected the high-excitation lines of carbon-chain molecules such as C 4 H 2 (J=
10_ {0, 10}{\mbox {--}} 9_ {0, 9}), C 4 H (N= 9 {\mbox {--}} 8, F 1, F 2), lC 3 H 2 (4 1, 3-3 1, 2) …