As low-and intermediate-mass stars reach the asymptotic giant branch (AGB), they have
developed into intriguing and complex objects that are major players in the cosmic gas/dust …

Molecules containing short-lived, radioactive nuclei are uniquely positioned to enable a
wide range of scientific discoveries in the areas of fundamental symmetries, astrophysics …

We report the detection for the first time in space of three new pure hydrocarbon cycles in
TMC-1: cC 3 HCCH (ethynyl cyclopropenylidene), cC 5 H 6 (cyclopentadiene), and cC 9 H 8 …

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 …

We report on the detection with the Infrared Space Observatory (ISO), for the first time in the
circumstellar medium, of the polyacetylenic chains C 4 H 2 and C 6 H 2 and of benzene (C 6 …

We found four series of harmonically related lines in IRC+ 10216 with the Yebes 40 m and
IRAM 30 m telescopes. The first series corresponds to a molecule with a rotational constant …

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 …

Mass loss from evolved stars results in the formation of unusual chemical laboratories:
circumstellar envelopes. Such envelopes are found around carbon-and oxygen-rich …

Aims. Following the recent detection of C 6 H-in the laboratory and in space we have
succeeded in studying the microwave spectrum of C 4 H-. We report here the first detection …

We report the detection in the envelope of the C-rich star IRC+ 10216 of four series of lines
with harmonically related frequencies: B1389, B1390, B1394, and B1401. The four series …