New ALMA Science Verification data is now available through the Science Portal. These comprise Band-4 observations of CH3OH and CH3CN transitions toward the triple proto-star system IRAS 16293-2422. Previous Science Verification data on this same source has already been used to provide a detailed dynamical characterisation of the binary system therein and its molecular complexity (Pineda et al. 2012).
New ALMA Science Verification data has been released. This batch includes:
– M100: Band 3 CO(1-0) observations with the 7m Array and the Total Power Array, demonstrating the ALMA Compact Array and data combination capabilities;
– 3C 286: Band 6 continuum observations demonstrating ALMA’s polarization capability.
The Science Verification data resulting from the 2014 ALMA Long-Baseline (~10km) campaign has just been released in the science verification webpage. This new capability to be available in Cycle-3 suits ALMA with spatial resolving powers as fine as a few tens milli-arcsecond.
This release includes:
– Juno (asteroid): observations of continuum in Band 6 (233 GHz);
– Mira (AGB star): observations of several SiO transitions (isotopologues and vibrational states) and continuum in Bands 3 and 6;
– HL Tau (proto-planetary disc): observations of continuum and spectral line in Band 3, and
continuum only in Bands 6 & 7;
– SDP.81 (lensed galaxy): observations of continuum and spectral lines in Bands 4, 6 & 7.
More details can be found in the corresponding CASA guide page.
For the most curious ones, here is a detailed look into what “QA2” involves. This article describes the implementation of the ALMA data quality assurance system, in particular the level 2 which is based on CASA, and the lessons learned.