All articles tagged with #stellar dynamics
Researchers have discovered that up to 40% of explosive white dwarf pairs, known as cataclysmic variables, may form in triple-star systems, challenging traditional models and highlighting the significant influence of a third star on stellar evolution, based on data from the Gaia mission and computer simulations.
A study suggests that the peak light in tidal disruption events, where a star is torn apart by a black hole, may originate from shocks between the debris stream and the accretion disk. The research, based on simulations, proposes that these stream-disk shocks can produce the observed optical and ultraviolet emission in such events, shedding light on the mechanisms driving these dramatic astronomical phenomena.
Scientists at Oak Ridge National Laboratory have produced a signature nuclear reaction that occurs on the surface of a neutron star gobbling mass from a companion star. The achievement improves understanding of stellar processes generating diverse nuclear isotopes. The team uses a unique gas jet target system, which produces the world's highest-density helium jet for accelerator experiments, to understand nuclear reactions that proceed with the same physics on Earth as in outer space.