The Pillars of Creation revisited with MUSE: gas kinematics and high-mass stellar feedback traced by optical spectroscopy

摘要: Integral field unit (IFU) data of the iconic Pillars Creation in M16 are presented. The ionisation structure pillars was studied great detail over almost entire visible wavelength range, and maps relevant physical parameters, e.g. extinction, electron density, temperature, line-of-sight velocity ionised neutral gas shown. In agreement with previous authors, we find that pillar tips being photo-evaporated by massive members nearby cluster NGC 6611. They display a stratified where emission lines peak descending order according to their energies. IFU allowed us analyse kinematics photo-evaporative flow terms structure, that, simulations, is traced blueshift position-velocity profile. have produce sketch 3D geometry Pillars, positioning respect ionising stars. We use novel method detect previously unknown bipolar outflow at tip middle suggest it has an embedded protostar as its driving source. Furthermore identify candidate leftmost pillar. With derived parameters ionic abundances, estimate mass loss rate due 70 M$_{\odot}$ Myr$^{-1}$ which yields expected lifetime approximately 3 Myr.