41 citations · 57 across the 9 of their papers we have counts for
7 papers · 1 filter
"Mega-Earths" are likely an artifact of stellar activity
Casey L. Brinkman, Nicolas Cowan
Empirical relations and planet formation simulations suggest an upper mass limit for rocky planets of 10M, as cores above this will almost certainly undergo runawa…
Cool, Cloudy Nights on an Ultrahot Neptune: A Panchromatic NIRISS/NIRSpec Transmission Spectrum of LTT 9779 b
Sarah Stamer, Diana Dragomir, Annabella Meech +13
Studies of planets that reside in the hot Neptune desert allow us to gain insight into how their atmospheres survive the intense flux from their host stars. One such member of that…
The First Hubble Detection of a Secondary Eclipse from a Rocky Exoplanet: the 5.4-hour planet TOI-2431 b
Sebastian Zieba, Billy Edwards, Samuel N. Quinn +18
We present an HST/WFC3 G141 phase-curve observation of the ultra-short-period rocky planet TOI-2431 b and detect its secondary eclipse in the near infrared. Combined with the TESS…
Thermal Evolution of Lava Planets Across System Ages: Predictions for Hell of a Survey
Mariana Sastre, Tim Lichtenberg, Lisa Dang +22
Ultra-short-period (USP) rocky exoplanets can have dayside temperatures high enough to maintain permanent magma oceans, sitting at the intersection of interior geophysics and atmos…
The JWST weather report: Unravelling the atmospheric variability of isolated worlds using principal component analysis
Merle A. Schrader, Johanna M. Vos, Evert Nasedkin +17
Brown dwarf variability directly probes atmospheric dynamics beyond the Solar System, and recent JWST time-resolved spectroscopy has opened a new window into these processes. Princ…
Assessing Ariel's capabilities to observe free-floating brown dwarfs
Roman Akhmetshyn, Nicolas B Cowan, Sarah Casewell
The primary goal of the Ariel space telescope is to conduct the biggest spectroscopic survey of transiting exoplanets to characterize their atmospheres and weather. We propose to e…
Coupled orbital and interior structure evolution of lava planets
Mahesh Herath, Nicolas B. Cowan, Charles-Édouard Boukaré +1
Lava planets likely did not form in their current orbits, instead migrating inward via orbital decay, which influenced the evolution of their magma oceans. We introduce a coupled t…