I am an astrophysicist working as an associate research scientist at the Center for Computational Astrophysics at the Flatiron Institute in NYC. I am also the chief scientist at Authorea, a collaborative web platform promoting Open Science. Previously, I have been a specialist in astrophysics at the KITP (Kavli Institute for Theoretical Physics) at University of California Santa Barbara.
In my research I try to understand how stars live and die. To do this I need to study the complex physics of their interiors and of their potential interactions with binary companions. There are a number of tools that I use for my research: magneto-hydrodynamics (MHD) calculations of stellar interiors, asteroseismology (the study and observation of wave propagation inside distant stars), stellar evolution calculations and observations of powerful stellar explosions (supernovae and gamma-ray bursts). To understand these amazing phenomena, I calculate detailed models of stars including the effects of rotation, magnetic fields, pulsations and binary interaction.
I am a member of the MESA council: MESA Star is a state-of-the-art, open source code for stellar evolution developed at KITP. I also work on 3D simulations of convection, for which I do use the Pencil code, a high order MPI code for MHD. I am a PI for the SPIDER (Supernova Progenitors, Internal Dynamics and Evolution Research) network, a NASA funded effort; this network takes advantage of the expertise of four institutions, spanning stellar evolution, wave phenomena, MHD simulations and connections to observational efforts (e.g. PTF and NASA’s Kepler satellite) in order to "get the progenitors right". I am also a member of the VLT-FLAMES Tarantula Survey consortium, an international collaboration studying an amazing sample of about 1000 massive stars in the LMC cluster 30 Doradus.