Publications (18)
History and Habitability of the LP 890-9 Planetary System
Rory Barnes, Laura N. R. do Amaral, Jessica Birky +42
We present numerous aspects of the evolution of the LP 890-9 (SPECULOOS-2/TOI-4306) planetary system, focusing on the likelihood that planet c can support life. We find that the ho…
Quasi periodic whispers from a transient ULX in M\,101: signatures of a fast-spinning neutron star?
Ryan T. Urquhart, Roberto Soria, Rosanne Di Stefano +7
We have studied the unusual time variability of an ultraluminous X-ray source in M 101, 4XMM J140314.2541806 (henceforth, J1403), using Chandra and XMM-Newton data. Over the las…
Exploring the Neptunian Desert: Insights from a Homogeneous Planetary Sample
Lauren Doyle, David J. Armstrong, Lorena Acuña +26
In this paper, we present a homogeneous analysis of close-in Neptune planets. To do this, we compile a sample of TESS-observed planets using a ranking criterion which takes into ac…
The TOI-1117 Multi-planetary System: 3 sub-Neptunes, 1 in both the Neptunian Desert and Radius Valley
Isobel S. Lockley, David J. Armstrong, Jorge Fernández Fernández +33
We present the discovery of three sub-Neptune planets around TOI-1117, a Sun-like star with mass , radius , age Gyr and ef…
Demographics of Close-In TESS Exoplanets Orbiting FGK Main-sequence Stars
Kaiming Cui, David J. Armstrong, Andreas Hadjigeorghiou +5
Understanding the demographics of close-in planets is crucial for insights into exoplanet formation and evolution. We present a detailed analysis of occurrence rates for close-in (…
Do long-cadence data of {\it Kepler} satellite capture the basic properties of flares ?
Huiqin Yang, Jifeng Liu, Erlin Qiao +4
Flare research is becoming a burgeoning realm in the study of stellar activity due to the launch of {\it Kepler} in 2009. {\it Kepler} provides data with two time resolutions, i.e.…