CFHT UM2019 - Presentation Details

Abstract Details

Title: A 3D view of the Crab Nebula with SITELLE

Presenter: Thomas Martin


The Crab Nebula (M1) has been observed with SITELLE as an engineering data cube to verify test SITELLE’s ability to reach a spectral resolution of R=10 000. We will show that it is indeed the case by presenting the first complete mapping of the [NII], Halpha and [SII] lines (SN3 filter) of the Crab at such a resolution. A novel deconvolution technique, reaching sub-km/s uncertainty, reveals a complex filamentary structure surprisingly inhomogeneous in terms of physical conditions. Combining SITELLE’s kinematics with long-term HST imagery allows us to reveal the spectacular 3D shape of the Crab.