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124 papers · 1 filter
High Accuracy Near-infrared Imaging Polarimetry with NICMOS
D. Batcheldor, G. Schneider, D. C. Hines +5
The findings of a nine orbit calibration plan carried out during HST Cycle 15, to fully determine the NICMOS camera 2 (2.0 micron) polarization calibration to high accuracy, are re…
Near-IR spectroscopic ages of massive star clusters in M82
A. Lançon, J. S. Gallagher, M. Mouhcine +3
Like other starburst galaxies, M82 hosts compact, massive young star clusters that are interesting both in their own right and as benchmarks for population synthesis models. Can sp…
Simulating star formation in molecular cloud cores IV. The role of turbulence and thermodynamics
R. E. Attwood, S. P. Goodwin, D. Stamatellos +1
We perform SPH simulations of the collapse and fragmentation of low-mass cores having different initial levels of turbulence (alpha_turb=0.05,0.10,0.25). We use a new treatment of…
Resonance enhanced turbulent transport
A. P. L. Newton, E. Kim
The effect of oscillatory shear flows on turbulent transport of passive scalar fields is studied by numerical computations based on the results provided by E. Kim [\emph{Physics of…
Optical readout tracking detector concept using secondary scintillation from liquid argon generated by a thick gas electron multiplier
P. K. Lightfoot, G. J. Barker, K. Mavrokoridis +2
For the first time secondary scintillation, generated within the holes of a thick gas electron multiplier (TGEM) immersed in liquid argon, has been observed and measured using a si…
Slow-Roll Inflation in the Presence of a Dark Energy Coupling
Philippe Brax, Carsten van de Bruck, Lisa M. H. Hall +1
In models of coupled dark energy, in which a dark energy scalar field couples to other matter components, it is natural to expect a coupling to the inflaton as well. We explore the…