Although first considered as too diluted for the formation of molecules in-situ and too harsh
an environment for their survival, the interstellar medium has turned out to host a rich palette …

We report the detection, for the first time in space, of a new non-functionalised hydrocarbon
cycle in the direction of TMC-1: oC 6 H 4 (ortho-benzyne). We derive a column density for …

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

A family of unidentified infrared emission (UIE) bands has been observed throughout the
Universe. The current observed spectral properties of the UIE bands are summarized. These …

Polycyclic aromatic hydrocarbons (PAHs) are organic molecules containing adjacent
aromatic rings. Infrared emission bands show that PAHs are abundant in space, but only a …

After decades of searching, astronomers have recently identified specific Polycyclic Aromatic
Hydrocarbons (PAHs) in space. Remarkably, the observed abundance of cyanonaphthalene …

Polycyclic aromatic hydrocarbons (PAHs) are among the most widespread compounds in
the universe, accounting for up to~ 25% of all interstellar carbon. Since most unsubstituted …

Aromatic molecules play an important role in the chemistry of astronomical environments
such as the cold interstellar medium (ISM) and (exo) planetary atmospheres. The observed …

We have conducted an extensive search for nitrogen-, oxygen-, and sulfur-bearing
heterocycles toward Taurus Molecular Cloud 1 (TMC-1) using the deep, broadband …

We report the detection of large hydrocarbon cycles toward several cold dense clouds. We
observed four sources (L1495B, Lupus-1A, L483, and L1527) in the Q band (31− 50 GHz) …