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arXiv · 1212.0540

Misalignment of Magnetic Fields and Outflows in Protostellar Cores

Charles L. H. Hull·Richard L. Plambeck·Alberto D. Bolatto·Geoffrey C. Bower·John M. Carpenter·Richard M. Crutcher·Jason D. Fiege·Erica Franzmann·Nicholas S. Hakobian·Carl Heiles·Martin Houde·A. Meredith Hughes·Katherine Jameson·Woojin Kwon·James W. Lamb·Leslie W. Looney·Brenda C. Matthews·Lee Mundy·Thushara Pillai·Marc W. Pound·Ian W. Stephens·John J. Tobin·John E. Vaillancourt·N. H. Volgenau·Melvyn C. H. Wright
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Abstract

We present results of 1.3 mm dust polarization observations toward 16 nearby, low-mass protostars, mapped with ~2.5" resolution at CARMA. The results show that magnetic fields in protostellar cores on scales of ~1000 AU are not tightly aligned with outflows from the protostars. Rather, the data are consistent with scenarios where outflows and magnetic fields are preferentially misaligned (perpendicular), or where they are randomly aligned. If one assumes that outflows emerge along the rotation axes of circumstellar disks, and that the outflows have not disrupted the fields in the surrounding material, then our results imply that the disks are not aligned with the fields in the cores from which they formed.

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Charles L. H. Hull, Richard L. Plambeck, Alberto D. Bolatto, Geoffrey C. Bower, John M. Carpenter, Richard M. Crutcher, Jason D. Fiege, Erica Franzmann, Nicholas S. Hakobian, Carl Heiles, Martin Houde, A. Meredith Hughes, Katherine Jameson, Woojin Kwon, James W. Lamb, Leslie W. Looney, Brenda C. Matthews, Lee Mundy, Thushara Pillai, Marc W. Pound, Ian W. Stephens, John J. Tobin, John E. Vaillancourt, N. H. Volgenau, Melvyn C. H. Wright. 2012-12-03. Misalignment of Magnetic Fields and Outflows in Protostellar Cores. https://doi.org/10.1088/0004-637x/768/2/159

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