dc.contributor.author | Price, Daniel J. | |
dc.contributor.author | Bate, Matthew R. | |
dc.date.accessioned | 2013-06-10T13:59:21Z | |
dc.date.issued | 2009-08-19 | |
dc.description.abstract | We investigate the effects of magnetic fields and radiative protostellar feedback on the star formation process using self-gravitating radiation magnetohydrodynamical calculations. We present results from a series of calculations of the collapse of 50 M⊙ molecular clouds with various magnetic field strengths and with and without radiative transfer. We find that both magnetic fields and radiation have a dramatic impact on star formation, though the two effects are in many ways complementary. Magnetic fields primarily provide support on large scales to low-density gas, whereas radiation is found to strongly suppress small-scale fragmentation by increasing the temperature in the high-density material near the protostars. With strong magnetic fields and radiative feedback, the net result is an inefficient star formation process with a star formation rate of ≲10 per cent per free-fall time that approaches the observed rate, although we have only been able to follow the calculations for 1/3 of a free-fall time beyond the onset of star formation. | en_GB |
dc.identifier.citation | Vol. 398 (1), pp. 33 - 46 | en_GB |
dc.identifier.doi | 10.1111/j.1365-2966.2009.14969.x | |
dc.identifier.uri | http://hdl.handle.net/10871/10007 | |
dc.language.iso | en | en_GB |
dc.publisher | Oxford University Press / Royal Astronomical Society | en_GB |
dc.subject | magnetic fields | en_GB |
dc.subject | MHD | en_GB |
dc.subject | stars: formation | en_GB |
dc.subject | stars: low-mass, brown dwarfs | en_GB |
dc.subject | ISM: clouds | en_GB |
dc.subject | galaxies: star clusters | en_GB |
dc.title | Inefficient star formation: the combined effects of magnetic fields and radiative feedback | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2013-06-10T13:59:21Z | |
dc.identifier.issn | 0035-8711 | |
dc.description | Copyright © 2009 Royal Astronomical Society | en_GB |
dc.identifier.eissn | 1365-2966 | |
dc.identifier.journal | Monthly Notices of the Royal Astronomical Society | en_GB |