Magnetic fields in the formation of sun-like stars

Josep M. Girart; Ramprasad Rao; Daniel P. Marrone

doi:10.1126/science.1129093

Magnetic fields in the formation of sun-like stars

Josep M. Girart, Ramprasad Rao, Daniel P. Marrone

Research output: Contribution to journal › Article › peer-review

311 Scopus citations

Abstract

We report high-angular-resolution measurements of polarized dust emission toward the low-mass protostellar system MGC 1333 IRAS 4A. We show that in this system the observed magnetic field morphology is in agreement with the standard theoretical models of the formation of Sun-like stars in magnetized molecular clouds at scales of a few hundred astronomical units; gravity has overcome magnetic support, and the magnetic field traces a clear hourglass shape. The magnetic field is substantially more important than turbulence in the evolution of the system, and the initial misalignment of the magnetic and spin axes may have been important in the formation of the binary system.

Original language	English (US)
Pages (from-to)	812-814
Number of pages	3
Journal	Science
Volume	313
Issue number	5788
DOIs	https://doi.org/10.1126/science.1129093
State	Published - Aug 11 2006
Externally published	Yes

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title = "Magnetic fields in the formation of sun-like stars",

abstract = "We report high-angular-resolution measurements of polarized dust emission toward the low-mass protostellar system MGC 1333 IRAS 4A. We show that in this system the observed magnetic field morphology is in agreement with the standard theoretical models of the formation of Sun-like stars in magnetized molecular clouds at scales of a few hundred astronomical units; gravity has overcome magnetic support, and the magnetic field traces a clear hourglass shape. The magnetic field is substantially more important than turbulence in the evolution of the system, and the initial misalignment of the magnetic and spin axes may have been important in the formation of the binary system.",

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year = "2006",

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AU - Girart, Josep M.

AU - Rao, Ramprasad

AU - Marrone, Daniel P.

PY - 2006/8/11

Y1 - 2006/8/11

N2 - We report high-angular-resolution measurements of polarized dust emission toward the low-mass protostellar system MGC 1333 IRAS 4A. We show that in this system the observed magnetic field morphology is in agreement with the standard theoretical models of the formation of Sun-like stars in magnetized molecular clouds at scales of a few hundred astronomical units; gravity has overcome magnetic support, and the magnetic field traces a clear hourglass shape. The magnetic field is substantially more important than turbulence in the evolution of the system, and the initial misalignment of the magnetic and spin axes may have been important in the formation of the binary system.

AB - We report high-angular-resolution measurements of polarized dust emission toward the low-mass protostellar system MGC 1333 IRAS 4A. We show that in this system the observed magnetic field morphology is in agreement with the standard theoretical models of the formation of Sun-like stars in magnetized molecular clouds at scales of a few hundred astronomical units; gravity has overcome magnetic support, and the magnetic field traces a clear hourglass shape. The magnetic field is substantially more important than turbulence in the evolution of the system, and the initial misalignment of the magnetic and spin axes may have been important in the formation of the binary system.

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JO - Science

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Magnetic fields in the formation of sun-like stars

Abstract

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