101 citations · 891 across the 56 of their papers we have counts for
6 papers · 1 filter
Sudden extreme obscuration of a Sun-like main-sequence star: evolution of the circumstellar dust around ASASSN-21qj
Jonathan P. Marshall, Steve Ertel, Francisca Kemper +6
ASASSN-21qj is a distant Sun-like star that recently began an episode of deep dimming events after no prior recorded variability. Here we examine archival and newly obtained optica…
The porous envelope and circumstellar wind matter of the closest carbon star, CW Leonis
Hyosun Kim, Ho-Gyu Lee, Youichi Ohyama +5
Recent abrupt changes of CW Leonis may indicate that we are witnessing the moment that the central carbon star is evolving off the Asymptotic Giant Branch (AGB) and entering into t…
The SN 2023ixf Progenitor in M101: II. Properties
Schuyler D. Van Dyk, Sundar Srinivasan, Jennifer E. Andrews +12
We follow our first paper with an analysis of the ensemble of the extensive pre-explosion ground- and space-based infrared observations of the red supergiant (RSG) progenitor candi…
`pgmuvi`: Quick and easy Gaussian Process Regression for multi-wavelength astronomical timeseries
P. Scicluna, S. Waterval, D. A. Vasquez-Torres +2
Time-domain observations are increasingly important in astronomy, and are often the only way to study certain objects. The volume of time-series data is increasing dramatically as…
The SN 2023ixf Progenitor in M101: I. Infrared Variability
Monika D. Soraisam, Tamás Szalai, Schuyler D. Van Dyk +6
Observational evidence points to a red supergiant (RSG) progenitor for SN 2023ixf. The progenitor candidate has been detected in archival images at wavelengths (>0.6 micron) where…
The dusty circumstellar environment of Betelgeuse during the Great Dimming as seen by VLTI/MATISSE
E. Cannon, M. Montargès, A. de Koter +23
The 'Great Dimming' of the prototypical red supergiant Betelgeuse, which occurred between December 2019 and April 2020, gives us unprecedented insight into the processes occurring…