Howard Chen is an Assistant Professor of Planetary and Space Sciences at Florida Institute of Technology. He is an expert in the simulation of exoplanet atmospheres and the chemical-climatic effects of time-varying stellar activity. He has used models pertinent to volatile accretion, atmospheric evolution, to coupled chemistry-climate systems to study Earth, Earth-like planets, and sub-Neptune sized planets.
He has correctly predicted the existence of a “valley” in the radius distribution of Kepler planets and has made several other predictions pending verification such as the origin from superchrondritic carbon to nitrogen ratios in Earth’s mantle and atmosphere, a prominent water vapor moist greenhouse spectral feature on tidally-locked exoplanets, and the prevalence of “evaporated core” close to the galactic center.
PhD in Earth and Planetary Sciences, Northwestern University (2016-2021)
B.A in Physics, Boston University (2012-2016)
NASA Postdoctoral Program Fellow at Goddard Space Flight Center (2022-2023)
Future Investigator in NASA Earth, Space Sciences, and Technology (2018-2021)
Chen, H. and Jacobson, S.A., 2022. Impact induced atmosphere-mantle exchange sets the volatile elemental ratios on primitive Earths. Earth and Planetary Science Letters, 594, p.117741.
Chen, H., 2021. Lithopanspermia at the Center of Spiral Galaxies. Planet Formation and Panspermia: New Prospects for the Movement of Life through Space, pp.149-170.
Fauchez, T.J., Turbet, M., Sergeev, D.E., Mayne, N.J., Spiga, A., Sohl, L., Saxena, P., Deitrick, R., Gilli, G., Domagal-Goldman, S.D. and Forget, F., 2021. TRAPPIST Habitable Atmosphere Intercomparison (THAI) workshop report. The Planetary Science Journal, 2(3), p.106.
Chen, H., Zhan, Z., Youngblood, A., Wolf, E.T., Feinstein, A.D. and Horton, D.E., 2021. Persistence of flare-driven atmospheric chemistry on rocky habitable zone worlds. Nature Astronomy, 5(3), pp.298-310.
Chen, H., Wolf, E.T., Zhan, Z. and Horton, D.E., 2019. Habitability and spectroscopic observability of warm M-dwarf exoplanets evaluated with a 3D chemistry-climate model. The Astrophysical Journal, 886(1), p.16.
Chen, H., Wolf, E.T., Kopparapu, R., Domagal-Goldman, S. and Horton, D.E., 2018. Biosignature anisotropy modeled on temperate tidally locked M-dwarf planets. The Astrophysical Journal Letters, 868(1), p.L6.
Chen, H., Forbes, J.C. and Loeb, A., 2018. Habitable evaporated cores and the occurrence of panspermia near the Galactic center. The Astrophysical Journal Letters, 855(1), p.L1.
Chen, H. and Rogers, L.A., 2016. Evolutionary analysis of gaseous sub-Neptune-mass planets with MESA. The Astrophysical Journal, 831(2), p.180.
Recognition & Awards
Selected as one of 25 Rising Stars in Astronomy by the Astronomy Magazine
Recipient of 2021 NASA Postdoctoral Program Fellowship
Recipient of 2020 Horace A. Scott NU EPS Award for Excellence in Graduate Research
Recipient of 2019 American Geophysical Union (AGU) Outstanding Student Presentation Award
Recipient of 2019 Future Investigators in NASA Earth and Space Science and Technology (FINESST) Award
Recipient of 2014 Caltech Summer Undergraduate Research Fellowship (SURF)
Recipient of 2015 Boston University Undergraduate Research Opportunities Program (UROP) Grant
Recipient of 2013 Boston University Student Academic Enhancement Fund Travel Award
Predicting exoplanet habitability and detectability for future instruments
Developing numerical models of early Earth and Earth-like planets
Retrieving observational and remotely sensed data using novel analysis techniques