Richard J. Cartwright et al 2023 Planet. Sci. J. 4 42
Spectra of Umbriel show features at infrared wavelengths that may be due to a variety of intriguing compounds, but the proposed compounds produce spectral features at other wavelengths that are not seen.
Man Ho Chan and Chak Man Lee 2023 ApJL 943 L11
Two instances of stars falling toward stellar-mass black holes faster than expected may provide evidence of dark matter density spikes in the vicinity of these black holes, which could help us characterize dark matter.
Samayra M. Straal et al 2023 ApJ 942 103
A glowing region of gas powered by a rapidly spinning neutron star left over after a supernova might have a second power source: a massive, evolved star on its way to becoming a supernova itself.
H. Wu et al 2023 ApJL 943 L6
Observations suggest that electrons with energies above 300 keV, accelerated during a solar flare, appear to be the sought-after trigger for solar shakeups called sunquakes.
William Thompson et al 2023 AJ 165 29
The star HR 8799 is known to host four planets, but researchers think there might be more — a recent search turned up a candidate planet interior to the known planets, and the technique used could be applied to other planetary systems.
Katherine de Kleer et al 2023 Planet. Sci. J. 4 37
Using data of auroral emission at multiple different wavelengths — some auroral wavelengths were detected at a planet beyond Earth for the first time — a research team constrained the atmospheric properties of some of Jupiter’s moons.