Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published March 10, 2014 | Published + Submitted
Journal Article Open

Hot Core, Outflows, and Magnetic Fields in W43-MM1 (G30.79 FIR 10)


We present submillimeter spectral line and dust continuum polarization observations of a remarkable hot core and multiple outflows in the high-mass, star-forming region W43-MM1 (G30.79 FIR 10), obtained using the Submillimeter Array. A temperature of ~400 K is estimated for the hot core using CH_(3)CN (J = 19–18) lines, with detections of 11 K-ladder components. The high temperature and the mass estimates for the outflows indicate high-mass star formation. The continuum polarization pattern shows an ordered distribution, and its orientation over the main outflow appears to be aligned with the outflow. The derived magnetic field indicates slightly super-critical conditions. While the magnetic and outflow energies are comparable, the B-field orientation appears to have changed from parsec scales to ~0.1 pc scales during the core/star formation process.

Additional Information

© 2014 The American Astronomical Society. Received 2013 November 8; accepted 2014 January 27; published 2014 February 26. Comments from an anonymous refereewhich helped improve the Letter are gratefully acknowledged.

Attached Files

Published - 2041-8205_783_2_L31.pdf

Submitted - 1312.2561v2.pdf


Files (515.1 kB)
Name Size Download all
207.4 kB Preview Download
307.7 kB Preview Download

Additional details

August 22, 2023
October 26, 2023