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Astron. Astrophys. 335, 1040-1048 (1998)

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5. Further observational requirements

Clearly additional observations of AFGL 961 and its associated NIR shock-excited nebulosities are required to better understand its structure and evolution. Deeper H2 images over a wider field may reveal additional (and possibly more distant) H2 features. Deep broad-band NIR observations will determine the extent of the PMS cluster around the source and allow the investigation of the age and mass/luminosity function of the region. Higher resolution NIR spectroscopy of the H2 would give more quantitative information on the shock velocities and geometry of the outflowing material while high resolution mm/sub-mm CO line observations would aid in the study of the ejection velocity and velocity structure of the ambient medium or earlier ejecta upon which the outflows are impacting. High resolution sub-mm continuum observations may also shed light on the evolutionary state of the two binary components.

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© European Southern Observatory (ESO) 1998

Online publication: June 26, 1998
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