Planar infall of CH3OH gas around Cepheus A HW2
To test the nature of an (accretion) disk in the vicinity of Cepheus A HW2, the three-diemnsional velocity field of methanol maser spots was measured with an accuracy of the order of 0.1 km/s. The source was observed with the European VLBI Network (EVN) for three epochs spaced by one year between 2013 and 2015. During last epoch the observations benefited from the new deployed Sardinia Radio Telescope.
Published in Astronomy & Astrophysics, Volume 603, id.A94, 9 pp.