About the Dexter Group

An astrophysics research group at CU Boulder, JILA, and MPE Garching studying the observational properties of gas falling onto black holes (accretion flows) and their use as probes of strong gravity.

In the Spotlight

Image of the first black hole pictured
March 24, 2021: Jason Dexter Looks Deeper Into the First Image of a Black Hole

In a team of over 300 scientists, JILA Fellow and assistant professor in the Department of Astrophysical and Planetary Sciences, Jason Dexter digs further into the first picture ever taken of a black hole. His research has been recently published in a new paper for the Astrophysical Journal Letters. 


Read More
Jason Dexter, JILA Fellow
February 12, 2020: JILA Fellow Jason Dexter Wins 2020 Sloan Fellowship

JILA Fellow Jason Dexter has been selected for a 2020 Sloan Fellowship. 


Read More
The first image of a black hole from the Event Horizon Telescope
September 06, 2019: Jason Dexter, JILA’s newest fellow, wins Breakthrough Prize

Dexter is one of the 347 scientists who worked on the Event Horizon Telescope.


Read More

JILA Address

We are located at JILA: A joint institute of NIST and the University of Colorado Boulder.

Map | JILA Phone: 303-492-7789 | Address: 440 UCB, Boulder, CO 80309