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The role of automated methods for filament finding in understanding the complex relationship between filaments, magnetic fields and star formation

Published online by Cambridge University Press:  13 January 2020

Maria R. Cunningham Open the ORCID record for Maria R. Cunningham [Opens in a new window] ,
Claire-Elise Green ,
Paul A. Jones ,
Giles Novak  and
Laura Fissel
Maria R. Cunningham
Affiliation:
School of Physics, University of New South Wales Sydney, NSW, 2052, Australia email: maria.cunningham@unsw.edu.au
Claire-Elise Green
Affiliation:
School of Physics, University of New South Wales Sydney, NSW, 2052, Australia email: maria.cunningham@unsw.edu.au
Paul A. Jones
Affiliation:
School of Physics, University of New South Wales Sydney, NSW, 2052, Australia email: maria.cunningham@unsw.edu.au
Giles Novak
Affiliation:
Department of Physics and Astronomy North-Western University 2145 Sheridan Road Evanston, IL 60208-3112 USA
Laura Fissel
Affiliation:
NRAO Charlottesville USA
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Abstract

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The discovery of the ubiquity of filaments in the interstellar medium in the last two decades has begged the question: “What role do filaments play in star formation?” Here we describe how our automated filament finding algorithms can combine with both magnetic field measurements and high-resolution observations of dense cores in these filaments, to provide a statistically large sample to investigate the effect of filaments on star formation. We find that filaments are likely actively accreting mass from the interstellar medium, explaining why some 60% of stars, and all massive stars, form “on-filament”.

Keywords

Stars: formationISM: molecules
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S345: Origins: From the Protosun to the First Steps of Life , August 2018 , pp. 23 - 26
Copyright
© International Astronomical Union 2020 

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