Joleen Carlberg

Support Scientist
Joleen Carlberg headshot

Joleen Carlberg joined the institute in 2016 as a Support Scientist on the Space Telescope Imaging Spectrograph (STIS) team. Her focus on the team is monitoring and improving the calibration of the STIS spectral modes, particularly in tracking sensitivity changes of all the spectral gratings and addressing specific calibration issues for the echelle gratings. She recently assumed the role of User Support Lead, where she oversees the interactions the STIS team has with the community in support of planning their HST observations.

Before joining the institute, Dr. Carlberg was a NASA Postdoctoral Program Fellow at NASA Goddard Space Flight Center and a Vera Rubin Postdoctoral Fellow at the Carnegie Institution of Washington, Department of Terrestrial Magnetism. She is interested in the red giant phase of stellar evolution and its consequences on exoplanetary systems. Much of her observational work is studying red giants with unusual properties, in search of evidence of the tidal engulfment of planets by their host stars. She is active in the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) survey as part of the team conducting a search for substellar companions to red giant stars and has also been contributing to the development of the Milky Way Mapper survey in SDSS-V.


PhD in Astronomy, University of Virginia
MS in Astronomy, University of Virginia
BS in Astronomy & Astrophysics, Villanova University


Science Interests:   

  • Li-rich and/or rapidly rotating red giants
  • Composition of exoplanets and their host stars
  • Evolution of exoplanetary systems
  • Radial velocity surveys of red giants


Research Topics: Star Formation, Histories, and Evolution; Star Clusters; Exoplanets; Astrochemistry, Chemical Abundances


Professional Websites:

Professional Website


ORCID ID: 0000-0001-5926-4471


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