14 papers
A tale of two isotopes: Spatial variation in HCN fractionation toward young cores
Sigurd S. Jensen, Silvia Spezzano, Olli Sipilä +3
The paper maps H13CN and HC15N in several young starless and pre‑stellar cores, finds that their column density ratio varies spatially and correlates with H2 column density, and sh…
Atmospheric retrieval evidence for water isotopologue HDO on exoplanet WASP-39b
Fabian Gruebel, Karan Molaverdikhani, Barbara Ercolano +5
Hydrogen-isotopologues are commonly used to trace the chemical processing and origin of hydrogen-bearing species throughout the Universe, however, their abundance remains unconstra…
Oxygen in the protostellar clump OMC-2 FIR4
Jorma Harju, Paola Caselli, Rolf Güsten +6
Atomic oxygen (OI), OH, H2O, and CO are the main carriers of oxygen in dense interstellar gas and important coolants of shocks associated with protostellar outflows. We determine t…
Complex organic molecules and cosmic ray ionisation rate towards the massive protostar Cepheus A HW2
Emma W. Nielsen, Anna Punanova, Eva Wirström +5
Cosmic rays (CRs) are important drivers for molecular chemistry in star-forming regions, and laboratory experiments have shown that CRs can stimulate the release of complex organic…
Carbon chain diversity in L1544 and IRAS 16293-2422: an astrochemical pathfinder study for the SKAO
Lisa Giani, Eleonora Bianchi, Anthony Remijan +12
Astrochemical observations have revealed a surprisingly high level of chemical complexity, including long carbon chains, in the earliest stages of Sun-like star formation. The orig…
Using astrochemical models to simulate reactivity experiments on cold surfaces
Valeriia Sokolova, Basile Husquinet, Stephan Diana +7
The development of molecular complexity during stellar and planetary formation owes much to the interaction of gas and dust. When the first astrochemical models including solid-sta…