▪ Abstract Our understanding of the evolution of organic molecules, and their voyage from
molecular clouds to the early solar system and Earth, has changed dramatically …

We survey the current situation regarding chemical modelling of the synthesis of molecules
in the interstellar medium. The present state of knowledge concerning the rate coefficients …

We report the release of a new version of the UMIST database for astrochemistry. The
database contains the rate coefficients of 3864 gas-phase reactions important in interstellar …

▪ Abstract Absolute magnitudes are estimated for carbon stars of various subtypes in the
Hipparcos catalogue and as found in the Magellanic Clouds. Stellar radii fall within the limits …

Detection of MgCN in IRC + 10216: A new metal-bearing free radical ADS Classic is now
deprecated. It will be completely retired in October 2019. This page will automatically redirect to …

Aims. We investigate the non-equilibrium chemistry of the inner winds of AGB stars for
different stages of stellar evolution, choosing a standard AGB stellar model and changing …

A new chemical model of the circumstellar envelope surrounding the carbon-rich star IRC+
10216 is developed that includes carbon-containing molecules with up to 23 carbon atoms …

A CRESU (Cine′ tique de Re′ action en Ecoulement Supersonique Uniforme) apparatus
has been used to measure rate constants for the reactions of the ethynyl radical (C2H) with …

We review the formation and evolution of complex circumstellar and interstellar molecules. A
number of promising chemical routes are discussed which may lead to the formation of …

We report on the detection of nine lines of the ν 2 bending mode of triatomic carbon, C 3, in
the direction of Sagittarius B2. The R (4) and R (2) lines of C 3 have been also detected in …