text: 410,65,1395009341569310722,1246943809,Philipp Moesta,"New group paper: First paper led by PhD student Swapnil Shankar at @uva_api and @GRAPPAinstitute <LINK> <LINK> This is our first attempt at end-to-end modelling of type Ic-bl supernova. We extract the engine dynamics from a full 3D GRMHD CCSN simulation performed with <LINK> and use the resulting parameters as engine models for full-star jet-breakout simulations with JET. Finally we perform radiation-transport calculation with SEDONA to get lightcurves and spectras for these events. We find that the engine dynamics from 3D CCSN jet formation simulations are consistent with type Ic-bl supernova lightcurves and spectra. <LINK> Lightcurves and spectra also seem robust with respect to uncertainties in engine parameter extraction. This is very encouraging to keep improving our end-to-end modelling approach. The most important step will be to do full 3D jet-propagation simulations in the future. Huge congratulations to Swapnil for carrying out this project and working with multiple different codes and datasets. Such a pleasure to be working with him. Also, many thanks to collaborators Jennifer Barnes, Paul Duffel and Dan Kasen whose work we relied on heavily.",https://arxiv.org/abs/2105.08092,"A subset of type Ic supernovae (SNe Ic), broad-lined SNe Ic (SNe Ic-bl), show unusually high kinetic energies ($\sim 10^{52}$ erg) which cannot be explained by the energy supplied by neutrinos alone. Many SNe Ic-bl have been observed in coincidence with long gamma-ray bursts (GRBs) which suggests a connection between SNe and GRBs. A small fraction of core-collapse supernovae (CCSNe) form a rapidly-rotating and strongly-magnetized protoneutron star (PNS), a proto-magnetar. Jets from such magnetars can provide the high kinetic energies observed in SNe Ic-bl and also provide the connection to GRBs. In this work we use the jetted outflow produced in a 3D CCSN simulation from a consistently formed proto-magnetar as the central engine for full-star explosion simulations. We extract a range of central engine parameters and find that the extracted engine energy is in the range of $6.231 \times 10^{51}-1.725 \times 10^{52}$ erg, the engine time-scale in the range of $0.479-1.159$ s and the engine half-opening angle in the range of $\sim 9-19^{\circ}$. Using these as central engines, we perform 2D special-relativistic (SR) hydrodynamic (HD) and radiation transfer simulations to calculate the corresponding light curves and spectra. We find that these central engine parameters successfully produce SNe Ic-bl which demonstrates that jets from proto-magnetars can be viable engines for SNe Ic-bl. We also find that only the central engines with smaller opening angles ($\sim 10^{\circ}$) form a GRB implying that GRB formation is likely associated with narrower jet outflows and Ic-bl's without GRBs may be associated with wider outflows. ","Proto-magnetar jets as central engines for broad-lined type Ic