ALMA observations of Titan

We report submm observations of Titan performed with the ALMA interferometer from our cycle 0 data, centered around the rotational frequencies of HCN(4-3) and HNC(4-3), i.e. 354 and 362 GHz. The most extended configuration of the array in cycle 0 yielded disk-resolved emission spectra of Titan with an angular resolution of 0.54x0.42 arcsec. Titan’s angular surface diameter was 0.77 arcsec. Data were acquired in June-August 2012 near the greatest eastern and western elongations of Titan at a spectral resolution of 122 kHz (λ/d λ = 3.10^6).We have obtained maps of several nitriles present in Titan’ stratosphere: HCN, HC3N, CH3CN, HNC, DCN, and obtain the detection of the isotopes CH3C13N and HCCC15N as well as line spectroscopic detection of C2H5CN.This is a work in progress, maps of nitriles will be presented