Current Grants

• Saturn's upper atmosphere revealed by new Cassini/UVIS occultations, NASA Cassini Data Analysis Program, Principal Investigator
• Atmospheric structure and escape on Pluto: NASA New Frontiers Data Analysis Program, Principal Investigator
• A comprehensive investigation of Titan's middle and upper atmosphere, NASA Cassini Data Analysis Program, Co-Investigator
• The middle atmospheres of exoplanets: NASA Exoplanet Research Program, Co-Investigator
• Colorado Ultraviolet Transit Experiment: Mass loss and magnetic fields in exoplanetary systems, NASA Astrophysics Research and Analysis, Co-Investigator

Current Spacecraft Involvement

• Colorado Ultraviolet Transit Experiment, Co-Investigator
• Hubble Space Telescope GO programs, Co-Investigator

Former Spacecraft Involvement

• Cassini, Participating Scientist

Current Graduate Students

Current Postdocs

• Chenliang Huang

Complete publications list available from: NASA ADS Author Search: Tommi Koskinen

Recent refereed publications (NASA ADS): Years 2019 through June 2021

Yelle, Roger V., Koskinen, T. T., & Palmer, M. Y. 2021, Icarus. Titan occultations of Orion's belt observed with Cassini/UVIS

Koskinen, T. T., Strobel, D. F., & Brown, Z. 2021, Icarus. An empirical model of the Saturn thermosphere

Tribbett, Patrick D., Robinson, Tyler D., & Koskinen, Tommi T. 2021, The Planetary Science Journal. Titan in Transit: Ultraviolet Stellar Occultation Observations Reveal a Complex Atmospheric Structure

Steinrueck, M. E., Showman, A. P., Lavvas, P., Koskinen, T., Tan, X., Zhang, X. 2021, Monthly Notices of the Royal Astronomical Society 3D simulations of photochemical hazes in the atmosphere of hot Jupiter HD 189733b

Koskinen, T. T., Sandel, B. R., Yelle, R. V., Holsclaw, G. M., & Quemerais, E. 2020, Icarus. Corrigendum to "Saturn in Lyman α: A comparison of Cassini and Voyager observations" [Icarus 339 (2020) 113594]

France, Kevin, Duvvuri, Girish, Egan, Hilary, Koskinen, Tommi, Wilson, David J., Youngblood, Allison, Froning, Cynthia S., Brown, Alexander, Alvarado-Gómez, Julián D., Berta-Thompson, Zachory K., Drake, Jeremy J., Garraffo, Cecilia, Kaltenegger, Lisa, Kowalski, Adam F., Linsky, Jeffrey L., Loyd, R. O. Parke, Mauas, Pablo J. D., Miguel, Yamila, Pineda, J. Sebastian, Rugheimer, Sarah, Schneider, P. Christian, Tian, Feng, & Vieytes, Mariela 2020, The Astronomical Journal. The High-energy Radiation Environment around a 10 Gyr M Dwarf: Habitable at Last?

Fossati, L., Shulyak, D., Sreejith, A. G., Koskinen, T., Young, M. E., Cubillos, P. E., Lara, L. M., France, K., Rengel, M., Cauley, P. W., Turner, J. D., Wyttenbach, A., & Yan, F. 2020, Astronomy and Astrophysics. A data-driven approach to constraining the atmospheric temperature structure of the ultra-hot Jupiter KELT-9b

Young, M. E., Fossati, L., Koskinen, T. T., Salz, M., Cubillos, P. E., & France, K. 2020, Astronomy and Astrophysics. Non-local thermodynamic equilibrium transmission spectrum modelling of HD 209458b

Serigano, J., Hörst, S. M., He, C., Gautier, T., Yelle, R. V., Koskinen, T. T., & Trainer, M. G. 2020, Journal of Geophysical Research (Planets). Compositional Measurements of Saturn's Upper Atmosphere and Rings from Cassini INMS

Vriesema, J. W., Koskinen, T. T., & Yelle, R. V. 2020, Icarus. Electrodynamics in Saturn's thermosphere at low and middle latitudes

Brown, Z., Koskinen, T., Müller-Wodarg, I., West, R., Jouchoux, A., & Esposito, L. 2020, Nature Astronomy. A pole-to-pole pressure-temperature map of Saturn's thermosphere from Cassini Grand Finale data

Koskinen, T. T., Sandel, B. R., Yelle, R. V., Holsclaw, G. M., & Quemerais, E. 2020, Icarus. Saturn in Lyman α: A comparison of Cassini and Voyager observations

Cubillos, Patricio E., Fossati, Luca, Koskinen, Tommi, Young, Mitchell E., Salz, Michael, France, Kevin, Sreejith, A. G., & Haswell, Carole A. 2020, The Astronomical Journal. Near-ultraviolet Transmission Spectroscopy of HD 209458b: Evidence of Ionized Iron Beyond the Planetary Roche Lobe

Turner, Jake D., de Mooij, Ernst J. W., Jayawardhana, Ray, Young, Mitchell E., Fossati, Luca, Koskinen, Tommi, Lothringer, Joshua D., Karjalainen, Raine, & Karjalainen, Marie 2020, The Astrophysical Journal. Detection of Ionized Calcium in the Atmosphere of the Ultra-hot Jupiter KELT-9b

Pryor, W. R., Esposito, L. W., Jouchoux, A., West, R. A., Grodent, D., Gérard, J. -C., Radioti, A., Lamy, L., & Koskinen, T. 2019, Journal of Geophysical Research (Planets). Cassini UVIS Detection of Saturn's North Polar Hexagon in the Grand Finale Orbits

Lavvas, Panayotis, Koskinen, Tommi, Steinrueck, Maria E., García Muñoz, Antonio, & Showman, Adam P. 2019, The Astrophysical Journal. Photochemical Hazes in Sub-Neptunian Atmospheres with a Focus on GJ 1214b

Müller-Wodarg, I. C. F., Koskinen, T. T., Moore, L., Serigano, J., Yelle, R. V., Hörst, S., Waite, J. H., & Mendillo, M. 2019, Geophysical Research Letters. Atmospheric Waves and Their Possible Effect on the Thermal Structure of Saturn's Thermosphere

Sreejith, Aickara Gopinathan, Fossati, Luca, Fleming, Brian T., France, Kevin, Koskinen, Tommi, Egan, Arika, Rüdisser, Hannah T., & Steller, Manfred 2019, Journal of Astronomical Telescopes, Instruments, and Systems. Colorado Ultraviolet Transit Experiment data simulator

Pearson, Kyle A., Griffith, Caitlin A., Zellem, Robert T., Koskinen, Tommi T., & Roudier, Gael M. 2019, The Astronomical Journal. Ground-based Spectroscopy of the Exoplanet XO-2b Using a Systematic Wavelength Calibration