4 papers
Neutrino Flavor Transformation in Collapsing Supermassive Objects
Kyle S. Kehrer, George M. Fuller, Ian Padilla-Gay +1
The collapse of supermassive stars (SMSs, ) to black holes is accompanied by a prodigious flux of neutrinos of all flavors. These are produced thermally via…
Early Formation of Supermassive Black Holes via Dark Star Gravitational Instability
Katherine Freese, George M. Fuller, Sohan Ghodla +4
We show that dark stars, which are dark-matter-powered stars in the early universe, can grow by accretion to masses in the range $\mathscr{O}\left ({10}^4\right )-\mathscr{O}\left…
Non-conservation of Lepton Numbers in the Neutrino Sector Could Change the Prospects for Core Collapse Supernova Explosions
Anna M. Suliga, Patrick Chi-Kit Cheong, Julien Froustey +5
We show that interactions violating the conservation of lepton numbers in the neutrino sector could significantly alter the standard low entropy picture for the pre-supernova colla…
Dark Matter and General Relativistic Instability in Supermassive Stars
Kyle S. Kehrer, George M. Fuller
We calculate the extent to which collisionless dark matter impacts the stability of supermassive stars . We find that, depending on the star's mass, a dark…