Abstract Complex organic molecules (COMs) are believed to form in the ice mantle of dust grains and released gas by thermal sublimation when grain mantles heated temperatures T d </mml...

G31.41+0.31 is a well known chemically rich hot molecular core (HMC). Using Band 3 observations from the Atacama Large Millimeter Array (ALMA), we have analyzed chemical and physical properties of source. We identified methyl isocyanate (CH3NCO), precursor prebiotic molecules, toward In addition to this, reported presence complex organic molecules (COMs) like methanol (CH3OH), methanethiol (CH3...

Let (X , ρ) be a metric space. Goal: given a set S ⊂ X , find a set C ⊂ X (" centers ") that has small cardinality, and " represents " the set S well (as measured by a cost function).

In his seminal 1983 paper, Jim Lawrence introduced lopsided sets and featured them as asymmetric counterparts of oriented matroids, both sharing the key property of strong elimination. Moreover, symmetry of faces holds in both structures as well as in the so-called affine oriented matroids. These two fundamental properties (formulated for covectors) together lead to the natural notion of “condi...

Context. Many C-, O-, and H-containing complex organic molecules (COMs) have been observed in the interstellar medium (ISM) their formation has investigated laboratory experiments. An increasing number of recent detections large N-bearing COMs motivates our experimental investigation chemical origin. Aims. We investigate potential role acetonitrile (CH 3 CN) as a parent molecule to COMs, motiva...