183 citations · 314 across the 4 of their papers we have counts for
5 papers
Pulsed ion deflection to overcome detector saturation in cryogenic ice sampling
P. Samarth, M. Bulak, D. Paardekooper +2
In 2014, we introduced a new experimental approach to study the UV photo-processing of cryogenic ices of astrophysical interest using laser ablation in combination with ionization…
Laboratory Photo-chemistry of PAHs: Ionization versus Fragmentation
Junfeng Zhen, Pablo Castellanos, Daniel M. Paardekooper +5
Interstellar polycyclic aromatic hydrocarbons (PAHs) are expected to be strongly processed by vacuum ultraviolet photons. Here, we report experimental studies on the ionization and…
Laboratory formation of fullerenes from PAHs: Top-down interstellar chemistry
Junfeng Zhen, Pablo Castellanos, Daniel M. Paardekooper +2
Interstellar molecules are thought to build up in the shielded environment of molecular clouds or in the envelope of evolved stars. This follows many sequential reaction steps of a…
Porosity measurements of interstellar ice mixtures using optical laser interference and extended effective medium approximations
J. -B. Bossa, K. Isokoski, D. M. Paardekooper +6
Aims. This article aims to provide an alternative method of measuring the porosity of multi-phase composite ices from their refractive indices and of characterising how the abundan…
Real-time optical spectroscopy of VUV irradiated pyrene:H_2O interstellar ice
J. Bouwman, D. M. Paardekooper, H. M. Cuppen +2
This paper describes a near-UV/VIS study of a pyrene:H_2O interstellar ice analogue at 10 K using optical absorption spectroscopy. A new experimental approach makes it possible to…