476 citations · 10.1k across the 164 of their papers we have counts for
12 papers · 1 filter
The impact of freeze-out on collapsing molecular clouds
S. Hocuk, S. Cazaux, M. Spaans
Atoms and molecules, and in particular CO, are important coolants during the evolution of interstellar star-forming gas clouds. The presence of dust grains, which allow many chemic…
On Quantum Contributions to Black Hole Growth
Marco Spaans
The effects of Wheeler's quantum foam on black hole growth are explored from an astrophysical perspective. Quantum fluctuations in the form of mini (10^-5 g) black holes can couple…
The nature of the ISM in galaxies during the star-formation activity peak of the Universe
G. Popping, J. P. Pérez-Beaupuits, M. Spaans +2
We combine a semi-analytic model of galaxy formation, tracking atomic and molecular phases of cold gas, with a three-dimensional radiative-transfer and line tracing code to study t…
Gas lines from the 5-Myr old optically thin disk around HD141569A. Herschel observations and modeling
Wing-Fai Thi, Christophe Pinte, Eric Pantin +20
At the distance of 99-116 pc, HD141569A is one of the nearest HerbigAe stars that is surrounded by a tenuous disk, probably in transition between a massive primordial disk and a de…
The SCUBA-2 Cosmology Legacy Survey: demographics of the 450 μm-population
I. G. Roseboom, J. S. Dunlop, M. Cirasuolo +47
We investigate the multi-wavelength properties of a sample of 450-μm selected sources from the SCUBA-2 Cosmology Legacy Survey (S2CLS). A total of 69 sources were identified above…
Uncertainties in water chemistry in disks: An application to TW Hya
I. Kamp, W. -F. Thi, G. Meeus +7
Context. This paper discusses the sensitivity of water lines to chemical processes and radiative transfer for the protoplanetary disk around TW Hya. The study focuses on the Hersch…