Kate Y. L. Su

Associate Astronomer

IR Group, Room #258

Steward Observatory

University of Arizona

Visiting Scholar

Academia Sinica Institute of Astronomy and Astrophysics (ASIAA)


  • Diversity in Debris Disks: Snapshots of Planetary System Evolution
  • The Master Sample of Spitzer Debris Disk Measurements
  • NASA LBTI Exozodi Survey: Hunt for Observable Signatures of Terrestrial Systems (HOSTS)
  • Direct Imaging Exoplanet Survey: The LBTI Exozodi Exoplanet Common Hunt (LEECH)

Recent News

epseri_sofia SOFIA Confirms Nearby Planetary System is Similar to Our Own NASA’s flying observatory, the Stratospheric Observatory for Infrared Astronomy, SOFIA, recently completed a detailed study of a nearby planetary system called epsilon Eridani. The investigations confirmed that this nearby planetary system has an architecture remarkably similar to that of our solar system. More...

DebrisHD95086 Baby Photos of a Scaled-Up Solar System. Astronomers have discovered two dust belts surrounded by a large dust halo around young star HD 95086. The findings provide a look back at what a scaled-up solar system may have resembled in its infancy. More...

AsteroidSmashThumbnail NASA's Spitzer Telescope Witnesses Asteroid Smashup. Using data taken by NASA's Spitzer Space Telescope, astronomers at the University of Arizona have spotted an eruption of dust around a young star, possibly the result of a smashup between large asteroids. This type of collision can eventually lead to the formation of terrestrial planets. More...

AsteroidThumbnailSpace Telescopes Find Evidence for Asteroid Belt around Vega. A UA-led team of astronomers has discovered inner asteroid belts and outer comet-filled belts similar to the arrangement found in our solar system around nearby stars Vega and Fomalhaut. A wide gap between the inner and outer belts strongly hints at the existence of yet undiscovered planets circling the bright stars. More...

Kate Su