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Finite-Horizon Robustness Analysis under Mixed Disturbances using Signal-IQCs
Frederik Thiele, Harald Pfifer, Felix Biertümpfel
Common worst-case analyses for uncertain finite-horizon systems consider quadratic performance metrics based on the strict Bounded Real Lemma. Thus, they assess system performance…
The Highly Variable Wind from WD J005311, the Stellar Remnant of the Peculiar Galactic Supernova of 1181
C. Alexander Thomas, Peter Garnavich, Charlotte Wood +2
WD J005311 is the peculiar stellar remnant of the Galactic supernova from 1181, and appears to have been the merger of two white dwarfs. We present time-resolved spectroscopy of WD…
TESS light curves of two new magnetic cataclysmic variables: an asynchronous polar at the period minimum, and an eclipsing system with a large spin-to-orbit ratio
Colin Littlefield, Krystian Ilkiewicz, Paul A. Mason +2
A recent development in the study of magnetic cataclysmic variable stars (mCVs) has been the identification of asynchronously spinning mCVs with orbital periods <2 h that have sign…
Detection of High-Velocity NaI Absorption Toward the Stellar Remnant of SN 1181 AD
Peter Garnavich, Robert A. Fesen
We report the detection of weak high-velocity NaI absorption at V = km s in the spectrum of the stellar remnant at the center of the Galactic sup…
A Catalogue of Orbital Periods of Cataclysmic Variables and Candidates from TESS Observations
Meryem K. Dağ, Simone Scaringi, Kieran O'Brien +21
We present a systematic analysis of 2544 cataclysmic variable systems and related candidates observed by the Transiting Exoplanet Survey Satellite (TESS), with the aim of compiling…