4 papers
Ices in starless and starforming cores
Karin I. Oberg, A. C. Adwin Boogert, Klaus M. Pontoppidan +5
Icy grain mantles are commonly observed through infrared spectroscopy toward dense clouds, cloud cores, protostellar envelopes and protoplanetary disks. Up to 80% of the available…
First detection of ND in the solar-mass protostar IRAS16293-2422
A. Bacmann, E. Caux, P. Hily-Blant +64
In the past decade, much progress has been made in characterising the processes leading to the enhanced deuterium fractionation observed in the ISM and in particular in the cold, d…
The c2d Spitzer Spectroscopic Survey of Ices Around Low-Mass Young Stellar Objects. IV. NH3 and CH3OH
Sandrine Bottinelli, A. C. Adwin Boogert, Jordy Bouwman +8
NH3 and CH3OH are key molecules in astrochemical networks leading to the formation of more complex N- and O-bearing molecules, such as CH3CN and HCOOCH3. Despite a number of recent…
First Spectroscopic Identification of Massive Young Stellar Objects in the Galactic Center
Deokkeun An, Solange V. Ramírez, Kris Sellgren +7
We report the detection of several molecular gas-phase and ice absorption features in three photometrically-selected young stellar object (YSO) candidates in the central 280 pc of…