Sam Morrell
smorrell.bsky.social
Sam Morrell
@smorrell.bsky.social
Devonian astrophysicist / ecologist at University of Exeter, UK. Aspiring science educator. Crafter of fine code. Musician and music lover. Ex astris, scientia. (he/him).
I'm really excited to get this #paper into the world. A huge thanks to my co-authors on this work for sticking with this project, and for all of their hard work and contributions.

Read here: doi.org/10.1093/mnra...

#astrophysics #astro #astronomy #science #stars
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doi.org
November 26, 2025 at 10:59 AM
We also perform a quantitative study of systematics (e.g. extinction, metallicity, and stellar activity) and show that the systematic error in both stellar radius and temperature are comparable to or less than the random uncertainty.
November 26, 2025 at 10:59 AM
Planetary radius measurements in literature have uncertainties about 40% larger than we measure in this work.

The attached plot shows the revised #exoplanet radius and mass, along with the difference between ours and those in #TEPCat (astro.keele.ac.uk/jkt/tepcat/).
November 26, 2025 at 10:59 AM
Our stellar radii have uncertainties of about 2%, and we measure stellar temperatures to around 50K.

Using synthetic #Gaia #DR3 G-band photometry, our parameters show a factor of 10 reduction in RMS residual and nearly a 40% improvement in mean uncertainty, when compared to the literature.
November 26, 2025 at 10:59 AM
In this article, we use SED fitting to re-derive the fundamental parameters of known #exoplanet hosting #stars. We also use literature data, or in some cases fitting of new #TESS #transit data, to re-derive #exoplanet properties.
November 26, 2025 at 10:59 AM
Thanks for your very warm welcome, Michele. It's fantastic to be here. 🙂
August 26, 2023 at 11:17 AM
Hi Hannah! I hope the mentions haven't been too unflattering. 😅 It's great to virtually meet you here.

Thanks very much for all of the work you're doing as well. I think it's really valuable to be able to apply and translate research into policy, and place it into its real-world context.
August 26, 2023 at 11:16 AM
Thanks very much for the offer. I will ask around. 🙂
August 26, 2023 at 11:01 AM