Paul B Rimmer
@rimmerlab.bsky.social
Husband. Father. Catholic. Planetary Astrochemist. Assistant Professor of Experimental Astrophysics at Cavendish Laboratory, University of Cambridge.
Maja Radecka and I studied nitrogen tracers. In an H2-rich air, N2 photochemistry yields HCN, HC3N & NH3, almost within JWST reach. CO2 chemistry rules out a mini-Neptune.
K2-18b is likely an ocean world, but what kind? Water or magma?
REad the paper here: arxiv.org/pdf/2509.03455
K2-18b is likely an ocean world, but what kind? Water or magma?
REad the paper here: arxiv.org/pdf/2509.03455
September 7, 2025 at 4:08 PM
Maja Radecka and I studied nitrogen tracers. In an H2-rich air, N2 photochemistry yields HCN, HC3N & NH3, almost within JWST reach. CO2 chemistry rules out a mini-Neptune.
K2-18b is likely an ocean world, but what kind? Water or magma?
REad the paper here: arxiv.org/pdf/2509.03455
K2-18b is likely an ocean world, but what kind? Water or magma?
REad the paper here: arxiv.org/pdf/2509.03455
If you want to hear some of my random (and not-so-random) thoughts about origins of life, here's a great interview with Furkan Ozturk.
www.youtube.com/watch?v=xVp6...
www.youtube.com/watch?v=xVp6...
August 28, 2023 at 8:08 PM
If you want to hear some of my random (and not-so-random) thoughts about origins of life, here's a great interview with Furkan Ozturk.
www.youtube.com/watch?v=xVp6...
www.youtube.com/watch?v=xVp6...
WTF is FO2!?! If you want to know, go read this paper! Even if you already know, read this paper anyway, because the work is amazing.
arxiv.org/abs/2308.09505
arxiv.org/abs/2308.09505
August 23, 2023 at 3:32 PM
WTF is FO2!?! If you want to know, go read this paper! Even if you already know, read this paper anyway, because the work is amazing.
arxiv.org/abs/2308.09505
arxiv.org/abs/2308.09505