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The Class 0 source Barnard 1c |
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| Authors: | Brenda Matthews Edwin Bergin Antonio Crapsi Michiel Hogerheijde Jes Jørgensen Dan Marrone Ramprasand Rao |
| Affiliation: | (1) Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, BC, Canada, V9E 2E7;(2) Dept. of Astronomy, University of Michigan, 825 Dennison Building, 500 Church Street, Ann Arbor, MI 48109, USA;(3) Leiden Observatory, P.O. Box 9513, 2300 RA Leiden, The Netherlands;(4) Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS42, Cambridge, 02128, USA;(5) Jansky Fellow, University of Chicago/KICP, 5640 South Ellis Avenue, Chicago, IL 60637, USA;(6) Academia Sinica, Institute of Astronomy and Astrophysics, 645 North Aohoku Place, Hilo, HI 96720, USA |
| Abstract: | We present our most recent results from an ongoing study of the Class 0 source Barnard 1c in Perseus. This source is of particular interest because it exhibits evidence of strong alignment of grains all the way to the core’s centre, which is contrary to all other low-mass protostellar cores observed to date. Our goal is to clarify the source of poor alignment in other sources by identifying the source of strong alignment in B1c. A central cavity has been identified in N2H+ emission; its anticorrelation with C18O emission suggests that heating in the centre has released CO from grain mantles, in turn destroying N2H+. We present sensitivity-limited, high spatial resolution polarimetry data from the SubMillimeter Array and discuss the potential implications of these data. |
| Keywords: | Polarization Stars: formation ISM: individual (Barnard 1c, B1c) ISM: magnetic fields |
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