Freeze-out of the gas-phase elements onto cold grains in dense interstellar and
circumstellar media builds up ice mantles consisting of molecules that are mostly formed in …

▪ 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 …

Molecular absorption and emission bands dominate the visible, infrared, and submillimeter
spectra of most objects with associated gas. These observations reveal a surprisingly rich …

ABSTRACT We present 2.5–30 μ m spectra from the Short-Wavelength Spectrometer of the
Infrared Space Observatory for a total of 23 sources. The sources include embedded young …

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 …

After hydrogen and helium, oxygen, carbon, and nitrogen—hereinafter, the CNO elements—
are the most abundant species in the universe. They are observed in all kinds of …

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 …

To study the physical and chemical evolution of ices in solar-mass systems, a spectral
survey is conducted of a sample of 41 low-luminosity YSOs (L\sim 0.1 {\mbox {--}} 10\L …

This paper presents, for the first time, a complete 2.4–25 μ m spectrum of the dust-
embedded young stellar object W33A. The spectrum was obtained with the Short …

We use state-of-the-art chemical models to track the cosmic evolution of the CNO isotopes in
the interstellar medium of galaxies, yielding powerful constraints on their stellar initial mass …