Welcome to Cool Star Lab

Our research focuses on the properties of the lowest mass stars, brown dwarfs, and extrasolar planets. We use observational techniques to infer physical properties, study multiple systems, investigate magnetic activity, and measure population statistics. Our tools include spectroscopy, high-resolution imaging, radio interferometry, and monitoring.

Research Results

Spectroscopic Observations by Cool Star Lab Researchers Contribute to Expanding the Census of the Solar Neighborhood

2020 is the year of the US Census. Just as an accurate count of people is essential to understanding the composition and needs of the nation, an accurate count … [Read More...]

Cool Star Lab Contributes to Discovery of “Extreme” Metal-poor Brown Dwarfs

Cool Star Lab researchers, including current and former members, have contributed to the discovery of two brown dwarfs with unusual metal abundances, suggesting … [Read More...]

Citizen Scientist Discovers Dusty Debris Disk Around White Dwarf

Citizen scientist Melina Thévenot of Germany helped the Backyard Worlds/Planet 9 program discover a unique white dwarf with a dusty debris disk, and … [Read More...]

Accolades

Dino Hsu awarded the Friends of the International Center fellowship

Dino Hsu, a 4th-year graduate student in the Cool Star Lab, has been awarded the Friends of the International Center fellowship. This fellowship is awarded to … [Read More...]

Dino Hsu awarded the Lattimer Award for Graduate Excellence

Cool Star Lab graduate student Chihchun "Dino" Hsu Graduate student Chihchun "Dino" Hsu has been awarded the 2019-2020 Carol and George Lattimer Award for … [Read More...]

Ryan Low awarded Dean’s Undergraduate Award for Excellence

Cool Star Lab undergraduate researcher Ryan Low Ryan Low, an undergraduate researcher in the Cool Star Lab, has been awarded the UCSD Division of Physical … [Read More...]

In the Community

Burgasser publishes on issues of inclusion in Nature Astronomy

Cool Star Lab PI Adam Burgasser recently published two Comments in Nature Astronomy, in a special issue focused on diversity, equity and inclusion in physical … [Read More...]

Exploring TRAPPIST-1 Virtually

The cosmOcosm team, lead by CU Boulder graduate student Kevin Sweet and including faculty co-leads Tara Knight and Adam Burgasser, brought the newest … [Read More...]

Cool Star Lab hosts Cal-Bridge Workshop on Growth Mindset

The Cool Star Lab hosted the first workshop for the Cal-Bridge program in 2018-2019 on the topic of Growth Mindset. This is the fourth such workshop on this … [Read More...]