Risa Wechsler KIPAC director

Welcome to Risa Wechsler, who began her appointment as director of the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC). Our tremendous gratitude is due to Tom Abel, whose ably led KIPAC over the past five-years.  

The Kavli Institute for Particle Astrophysics and Cosmology, or KIPAC, was inaugurated in 2003 as an independent laboratory of Stanford University to serve as a bridge between the disciplines of astrophysics, cosmology and particle physics. KIPAC's members work in the Physics and Applied Physics Departments on the Stanford campus and at the SLAC National Accelerator Laboratory. Its mission is to bring the resources of modern computational, experimental, observational and theoretical science to bear on our understanding of the universe at large.


Research Highlights

Apr 14, 2019 | Extreme energy bullets from mini-black hole jets

A microquasar is an active collapsed star, such as a small black hole or a neutron star, which is accreting the material of a more normal companion star. It has jets or particles that shoot out along its poles and an accretion disk of hot material circling it, and is essentially a smaller cousin of Nature’s most violent objects, active galactic nuclei (AGN).

Upcoming Events


Campus, Varian 355 *Note change in regular location*

11:00 am

SLAC, Kavli 3rd Floor Conf. Room

10:30 am


| An astronomical data challenge
| Tangled magnetic fields power cosmic particle accelerators
| We Visited the World's Largest Camera and Damn
| Gravitational lenses
| Q&A: Finding Earth-like exoplanets requires new space telescopes

Recent ArXiv Publications


View all recent publications