Jake Turner

Hubble Research Fellow, CCAPS


Dr. Jake Turner [he/him/his] is currently a NASA Hubble/Sagan Postdoctoral Fellow. Dr. Turner's research is focused on studying the magnetic fields, atmospheres, and orbital evolution of exoplanets. Dr. Turner was recently the lead author of a study that found the first possible detection of an exoplanet in the radio.

Jake received his bachelor degrees in physics and astronomy in 2011 from the University of Arizona. As a graduate student, Jake was awarded a National Science Foundation Graduate Research Fellowship and spent two years as a visiting student at CNRS in Orléans, France. Dr. Turner received his PhD in astronomy in 2018 from the University of Virginia. Since 2018, he has been a postdoctoral research associate at Cornell University and was awarded the NASA Hubble Fellowship in 2021. In addition to his research, Jake is very active in social activism, photography, outreach, and currently runs the social media of the Carl Sagan Institute.
You can find more info at his research website: astrojaketurner.com

Research Focus

Exoplanet magnetic fields: radio observations, spectropolarimetry, near-UV asymmetries
Dr. Turner is currently part of the Radio Exoplanets with LOFAR Team, the NenuFAR “Exoplanets and Stars” Key Science Program team, the Square Kilometre Array Cradle of Life Team, and the LuSEE (Lunar Surface Electromagnetics Experiment) Team. Also, he is on the exoplanet science committee for FARSIDE (Farside Array for Radio Science Investigations of the Dark ages and Exoplanets).
Exoplanet atmospheres: high-resolution, JWST, and ground-based low-resolution
Dr. Turner is the PI of the ExoGemS (Exoplanets with Gemini Spectroscopy survey) large survey on Gemini-N and part of the JWST Transiting Exoplanet ERS team and the NIRISS Exoplanets (NEAT) team.

In the news
Webb telescope shows exoplanet atmosphere as never seen before

Cornell helps detect CO2 for first time on faraway world

Spectrum reveals extreme exoplanet is even more exotic

Cornell postdoc detects possible exoplanet radio emission


Turner J.D., Flagg L., Ridden-Harper A., Jayawardhana R. Characterizing the WASP- 4 system with TESS and radial velocity data: Constraints on the cause of the hot Jupiter’s changing orbit and evidence of an outer planet. AJ. 163. 281. 2022           

Ashtari R., Sciola A., Turner J.D., Stevenson K. Detecting Magnetospheric Radio Emission from Giant Exoplanets. ApJ. 939. 24. 2022

Zafar R., et al. (including Turner J.D.). Early Release Science of the exoplanet WASP-39b with JWST NIRSpec PRISM. Nature. In press. arXiv:2211.10487. 2022

The JWST Transiting Exoplanet Community Early Release Science Team, et al. (in- cluding Turner J.D.). Identification of carbon dioxide in an exoplanet atmosphere. Nature. In press. arXiv:2208.11692. 2022

Deibert E.K., de Mooij E.J. W., Jayawardhana R., Turner J.D., et al. Detection of Ionized Calcium in the Atmosphere of the Ultra-hot Jupiter WASP-76b. ApJL. 919. 15. 2021  

Turner J.D., Ridden-Harper A., Jayawardhana R. Decaying Orbit of the Hot Jupiter WASP-12b: Confirmation with TESS Observations. AJ. 161. 72. 2021

Turner J.D., Zarka P., Griessmeier J.-M., et al. The search for radio emission from the exoplanetary systems 55 Cancri, Upsilon Andromedae, and tau Bootis using LOFAR beam-formed observations. A&A. 645. 59. 2021

Turner J.D., de Mooij E.J.W., Jayawardhana R., et al. Detection of Ionized Calcium in the Atmosphere of the Ultra-hot Jupiter KELT-9b. ApJL. 888. 13. 2020

Ridden-Harper A., Turner J.D., Jayawardhana R. TESS Observations of the Hot Jupiter Exoplanet XO-6b: No Evidence of Transit Timing Variations.. AJ. 160. 249. 2020  

Turner J.D., Griessmeier J.-M., Zarka P., et al. The search for radio emission from exoplanets using LOFAR beam-formed observations: Jupiter as an exoplanet. A&A. 624A. 40. 2019