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4 papers
Using Astrometry to Break Degeneracies in Stellar Surface Mapping
Jamila Taaki, Lia Corrales, Alfred O. Hero
Astrometric jitter noise arises when starspots on a rotating stellar surface move in and out of view, shifting the photocenter. This noise may limit our ability to detect and weigh…
Efficient Exoplanet Imaging Simulations of the Habitable Worlds Observatory
Jamila Taaki, Farzad Kamalabadi, Athol Kemball +2
Direct imaging simulations of starshades and other proposed mission concepts are needed to characterize planet detection performance and inform mission design trades. In order to a…
Identifiability of Rotating Stellar Surfaces from Astrometric Jitter
Jamila Taaki, Lia Corrales, Alfred Hero
Astrometry measures shifts in a star's photocentre and can be used to detect reflex motion due to orbiting exoplanets. Brightness asymmetries (e.g. starspots) rotating in and out o…
A Search for Exoplanet Candidates in TESS 2-min Light Curves using Joint Bayesian Detection
Jamila S. Taaki, Athol J. Kemball, Farzad Kamalabadi
In this work, we apply an exploratory joint Bayesian transit detector (Taaki et al. 2020), previously evaluated using Kepler data, to the 2 min simple aperture photometry light cur…