Cepheus A papers & figures

"Magnetic field regulated infall on the disc around the massive protostar Cepheus A HW2"
Vlemmings, W. H. T., Surcis, G., Torstensson, K.J.E., van Langevelde, H. J.
2010 MNRAS in press

Artist impression of the young massive star Cepheus A HW2. The narrow collimated jet originates from the embryonic star which is surrounded by a dust disc as well as a larger disc of gas. The wite lines show the 3-dimensional magnetic field structure along which material falls onto the slowly rotating discs. (Image credit: Tobias Maercker).

For a high-resolution JPG version (550 kB) click here. Even higher resolution or other file formats upon request.

Animation of the observations and the Cepheus A HW2 magnetic field. The spheres indicate velocity labelled methanol maser regions and the vectors indicate the 3-dimensional field direction determined for these masers. The thin and thick grey structures are the gas and dust disks respectively. The collimated radio outflows are indicated by the blue and red cones.

Further papers

"The Magnetic Field in the Star-forming Region Cepheus A from Water Maser Polarization Observations"
Vlemmings, W. H. T., Diamond, P. J., van Langevelde, H. J., Torrelles, J. M.
2006 A&A 448 597

Figure 2; download high-res JPEG 358 kB

Figure 3; download high-res JPEG 955 kB