EPoS Contribution
EPoS Contribution
Fragmentation and massive disk formation

Henrik Beuther
MPIA, Heidelberg, DE
How do high-mass gas clumps fragment? And how do the most massive disk-like structures form during this process? I will present results from a new large program at NOEMA (formerly Plateau de Bure Interferometer) resolving a large sample of high-mass star-forming regions at mm wavelength around 0.3" resolution. This program resolves the central cores and reveal the gas dynamics. These data will be complemented with recent even higher resolution (< 0.1") data from ALMA and the VLA toward two specific case studies.
Suggested Session: Disk Formation
EPoS Contribution
EPoS Contribution
Measurements of Magnetic Fields in the Early Phase of Star Formation

Martin Houde
U Western Ontario, London, CA
The fact that the role and importance of magnetic fields in the process of star formation remain unclear is largely due to the many difficulties of probing magnetic fields in molecular clouds. While the Zeeman effect still provides the only direct way of measuring the strength of (generally the line-of-sight component of) magnetic fields, its weakness in the interstellar medium limits the types of environments and number of regions where detections can successfully be obtained. Therefore, in this review I will focus on recent improvements brought to existing measurement techniques (e.g., linear polarization from dust), as well as on the developments of new methods to help elucidate the role of magnetic fields in the early phase of star formation.
Suggested Session: Magnetic Fields