Browsing Research publications by Author "Bonnell, I.~A."
Now showing items 1-6 of 6
-
Before the first supernova: combined effects of H II regions and winds on molecular clouds
Ngoumou, J.; Ercolano, B.; Bonnell, I.~A.; Dale, James (2014-07-21)We model the combined effects of photoionization and momentum-driven winds from O-stars on molecular clouds spanning a parameter space of initial conditions. The dynamical effects of the winds are very modest. However, in ... -
Early evolution of embedded clusters
Ercolano, B.; Bonnell, I.~A.; Dale, James (2015-07-21)We examine the combined effects of winds and photoionizing radiation from O-type stars on embedded stellar clusters formed in model turbulent molecular clouds covering a range of masses and radii. We find that feedback is ... -
Ionization-induced star formation - III. Effects of external triggering on the initial mass function in clusters
Bonnell, I.~A.; Dale, James (2012-05-01)We report on smoothed particle hydrodynamics simulations of the impact on a turbulent ∼2 × 103 M star-forming molecular cloud of irradiation by an external source of ionizing photons. We find that the ionizing radiation ... -
Ionizing feedback from massive stars in massive clusters - II. Disruption of bound clusters by photoionization
Ercolano, B.; Bonnell, I.~A.; Dale, James (2012-07-21)We present a smoothed particle hydrodynamics parameter study of the dynamical effect of photoionization from O-type stars on star-forming clouds of a range of masses and sizes during the time window before supernovae ... -
Massive stars in massive clusters - IV. Disruption of clouds by momentum-driven winds
Ngoumou, J.; Ercolano, B.; Bonnell, I.~A.; Dale, James (2013-12-21)We examine the effect of momentum-driven OB-star stellar winds on a parameter space of simulated turbulent giant molecular clouds using smoothed particle hydrodynamic simulations. By comparison with identical simulations ... -
Photoionising feedback and the star formation rates in galaxies
MacLachlan, J.~M.; Bonnell, I.~A.; Wood, K.; Dale, James (2015-01-07)Aims. We investigate the effects of ionising photons on accretion and stellar mass growth in a young star forming region, using a Monte Carlo radiation transfer code coupled to a smoothed particle hydrodynamics (SPH) ...