A systematic analysis of the mixing ratios with respect to H 2 O for eight species (CH 3 OH,
HCN, NH 3, H 2 CO, C 2 H 2, C 2 H 6, CH 4, and CO) measured with high-resolution infrared …

This paper is the result of the International Cometary Workshop, held in Toulouse, France in
April 2014, where the participants came together to assess our knowledge of comets prior to …

Dust is a ubiquitous feature of the cosmos, impinging directly or indirectly on most fields of
modern astronomy and astrophysics. Dust in the Galactic Environment, Second Edition …

The composition of cometary ices provides key information on the chemical and physical
properties of the outer solar nebula where comets formed, 4.6 Gy ago. This chapter …

Stellar nucleosynthesis of heavy elements such as carbon allowed the formation of organic
molecules in space, which appear to be widespread in our Galaxy. The physical and …

During the last three decades, it has become increasingly clear that atmospheric modelling
and remote sounding of the atmosphere from space, to name just two important application …

CO and CO 2 are the two dominant carbon-bearing molecules in comae and have major
roles in driving activity. Their relative abundances also provide strong observational …

The results of single-dish observations of low-and high-J transitions of selected molecules
from protoplanetary disks around two T Tauri stars (LkCa 15 and TW Hya) and two Herbig …

From radio spectroscopic observations of comets, more than 22 molecules, radicals and
ions, plus several isotopologues, were detected, the majority of them being recently …

We describe recent results on the CO/CO 2/H 2 O composition of comets together with a
survey of older literature (primarily for CO/H 2 O) and compare these with models of the …