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Todd, Z. R., Lozano, G. G., Kufner, C. L., Sasselov, D. D., & Catling, D. C. (2022). Ferrocyanide survival under near ultraviolet (300-400 nm) irradiation on early Earth. \gca, 335, 1-10. https://doi.org/10.1016/j.gca.2022.08.012
Todd, Z. R., Lozano, G. G., Kufner, C. L., Sasselov, D. D., & Catling, D. C. (2022). Ferrocyanide survival under near ultraviolet (300-400 nm) irradiation on early Earth. \gca, 335, 1-10. https://doi.org/10.1016/j.gca.2022.08.012
Ozturk, S. F., & Sasselov, D. D. (2022). On the origins of life’s homochirality: Inducing enantiomeric excess with spin-polarized electrons. Proceedings of the National Academy of Science, 119(28), e2204765119. https://doi.org/10.1073/pnas.2204765119
Ozturk, S. F., & Sasselov, D. D. (2022). On the origins of life’s homochirality: Inducing enantiomeric excess with spin-polarized electrons. Proceedings of the National Academy of Science, 119(28), e2204765119. https://doi.org/10.1073/pnas.2204765119
Ranjan, S., Kufner, C. L., Lozano, G. G., Todd, Z. R., Haseki, A., & Sasselov, D. D. (2022). UV Transmission in Natural Waters on Prebiotic Earth. Astrobiology, 22(3), 242-262. https://doi.org/10.1089/ast.2020.2422
Ranjan, S., Kufner, C. L., Lozano, G. G., Todd, Z. R., Haseki, A., & Sasselov, D. D. (2022). UV Transmission in Natural Waters on Prebiotic Earth. Astrobiology, 22(3), 242-262. https://doi.org/10.1089/ast.2020.2422
Ultraviolet (UV) light plays a key role in surficial theories of the origin of life, and numerous studies have focused on constraining the atmospheric transmission of UV radiation on early Earth. However, the UV transmission of the natural waters in which...
Levi, A., & Sasselov, D. (2022). Partitioning of Atmospheric O₂ into High-pressure Ice in Ocean Worlds. \apj, 926(1), 72. https://doi.org/10.3847/1538-4357/ac4500
Levi, A., & Sasselov, D. (2022). Partitioning of Atmospheric O₂ into High-pressure Ice in Ocean Worlds. \apj, 926(1), 72. https://doi.org/10.3847/1538-4357/ac4500
Kufner, D. C. L., Bucher, D. D. B., & Sasselov, D. D. D. (2022). The Photophysics of Nucleic Acids: Consequences for the Emergence of Life. ChemSystemsChem.
Kufner, D. C. L., Bucher, D. D. B., & Sasselov, D. D. D. (2022). The Photophysics of Nucleic Acids: Consequences for the Emergence of Life. ChemSystemsChem.
Absorption of ultraviolet (UV) radiation can trigger a variety of photophysical and photochemical reactions in nucleic acids. In the prebiotic era, on the surface of the early Earth, UV light could have played a major role in the selection of the building...
Liu, Z., Wu, L.-F., Kufner, C. L., Sasselov, D. D., Fischer, W. W., & Sutherland, J. D. (2021). Prebiotic photoredox synthesis from carbon dioxide and sulfite. Nature Chemistry, 13(11), 1126-1132. https://doi.org/10.1038/s41557-021-00789-w (Original work published 2021)
Liu, Z., Wu, L.-F., Kufner, C. L., Sasselov, D. D., Fischer, W. W., & Sutherland, J. D. (2021). Prebiotic photoredox synthesis from carbon dioxide and sulfite. Nature Chemistry, 13(11), 1126-1132. https://doi.org/10.1038/s41557-021-00789-w (Original work published 2021)
Heising, M. Z., Sasselov, D. D., Hernquist, L., & Luisa Tió Humphrey, A. (2021). How Flat Can a Planetary System Get? I. The Case of TRAPPIST-1. The Astrophysical Journal, 913(2).
Heising, M. Z., Sasselov, D. D., Hernquist, L., & Luisa Tió Humphrey, A. (2021). How Flat Can a Planetary System Get? I. The Case of TRAPPIST-1. The Astrophysical Journal, 913(2).
The seven planets orbiting TRAPPIST-1 in a compact near-resonant chain offer a unique case to study in planet formation theory. We demonstrate in this paper that the remarkable flatness of the system, exceeding that of any other known planetary system, is...
Langellier, Milbourne, T. W., Phillips, D. F., Haywood, R. D., Sasselov, D., & al. (2021). Detection Limits of Low-mass, Long-period Exoplanets Using Gaussian Processes Applied to HARPS-N Solar Radial Velocities. The Astronomical Journal, 161(6).
Langellier, Milbourne, T. W., Phillips, D. F., Haywood, R. D., Sasselov, D., & al. (2021). Detection Limits of Low-mass, Long-period Exoplanets Using Gaussian Processes Applied to HARPS-N Solar Radial Velocities. The Astronomical Journal, 161(6).
Radial velocity (RV) searches for Earth-mass exoplanets in the habitable zone around Sun-like stars are limited by the effects of stellar variability on the host star. In particular, suppression of convective blueshift and brightness inhomogeneities due...
Lacedelli, G., Malavolta, L., Sasselov, D., & al. (2021). An unusually low density ultra-short period super-Earth and three mini-Neptunes around the old star TOI-561. Monthly Notices of the Royal Astronomical Society, 501(3).
Lacedelli, G., Malavolta, L., Sasselov, D., & al. (2021). An unusually low density ultra-short period super-Earth and three mini-Neptunes around the old star TOI-561. Monthly Notices of the Royal Astronomical Society, 501(3).
Based on HARPS-N radial velocities (RVs) and TESS photometry, we present a full characterization of the planetary system orbiting the late G dwarf TOI-561. After the identification of three transiting candidates by TESS, we discovered two additional...
Todd, Z. R., Szostak, J. W., & Sasselov, D. D. (2021). Shielding from UV Photodamage: Implications for Surficial Origins of Life Chemistry on the Early Earth. ACS Earth and Space Chemistry, 5(2).
Todd, Z. R., Szostak, J. W., & Sasselov, D. D. (2021). Shielding from UV Photodamage: Implications for Surficial Origins of Life Chemistry on the Early Earth. ACS Earth and Space Chemistry, 5(2).
UV light has been invoked as a source of energy for driving prebiotic chemistry, but such high energy photons are also known to cause damage to biomolecules and their precursors. One potential mechanism for increasing the lifetime of UV-photounstable...
Janicki, M. J., Kufner, C. L., Todd, Z. R., Kim, S. C., O’Flaherty, D. K., Szostak, J. W., Šponer, J., Góra, R. W., Sasselov, D. D., & Szabla, R. (2021). Ribose Alters the Photochemical Properties of the Nucleobase in Thionated Nucleosides . J. Phys. Chem. Lett., 12.
Janicki, M. J., Kufner, C. L., Todd, Z. R., Kim, S. C., O’Flaherty, D. K., Szostak, J. W., Šponer, J., Góra, R. W., Sasselov, D. D., & Szabla, R. (2021). Ribose Alters the Photochemical Properties of the Nucleobase in Thionated Nucleosides . J. Phys. Chem. Lett., 12.
Substitution of exocyclic oxygen with sulfur was shown to substantially influence the properties of RNA/DNA bases, which are crucial for prebiotic chemistry and photodynamic therapies. Upon UV irradiation, thionucleobases were shown to efficiently...
Liu, Z., Wu, L.-F., Kufner, C. L., Sasselov, D. D., Fischer, W. W., & Sutherland, J. D. (2021). Prebiotic photoredox synthesis from carbon dioxide and sulfite. Nature Chemistry, 13, 1126-1132.
Liu, Z., Wu, L.-F., Kufner, C. L., Sasselov, D. D., Fischer, W. W., & Sutherland, J. D. (2021). Prebiotic photoredox synthesis from carbon dioxide and sulfite. Nature Chemistry, 13, 1126-1132.
Carbon dioxide (CO2) is the major carbonaceous component of many planetary atmospheres, which includes the Earth throughout its history. Carbon fixation chemistry—which reduces CO2 to organics, utilizing hydrogen as the stoichiometric reductant—usually...