888 citations · 2k across the 52 of their papers we have counts for
6 papers · 1 filter
Detection of anomalous element distribution in the extremely slowly rotating magnetic O9.7 V star HD 54879
S. P. Järvinen, S. Hubrig., M. Schöller +4
The O9.7 V star HD 54879 is currently the only massive magnetic star whose magnetic field geometry and rotation period are not constrained. Over the last three years, we gathered a…
An imaging polarimetry survey of Type Ia supernovae: are peculiar extinction and polarization properties produced by circumstellar or interstellar matter?
Matthew R. Chu, Aleksandar Cikota, Dietrich Baade +8
Some highly reddened Type Ia supernovae (SNe Ia) display low total-to-selective extinction ratios () in comparison to that of typical Milky Way dust ($R_V \approx 3…
The Type Icn SN 2021csp: Implications for the Origins of the Fastest Supernovae and the Fates of Wolf-Rayet Stars
Daniel A. Perley, Jesper Sollerman, Steve Schulze +31
We present observations of SN 2021csp, the second example of a newly-identified type of supernova (Type Icn) hallmarked by strong, narrow, P Cygni carbon features at early times. T…
Spectropolarimetry of the Type Ia SN 2019ein rules out significant global asphericity of the ejecta
Kishore C. Patra, Yi Yang, Thomas G. Brink +12
Detailed spectropolarimetric studies may hold the key to probing the explosion mechanisms and the progenitor scenarios of Type Ia supernovae (SNe Ia). We present multi-epoch spectr…
Evidence for multiple origins of fast declining Type II supernovae from spectropolarimetry of SN 2013ej and SN 2017ahn
T. Nagao, F. Patat, S. Taubenberger +10
The origin of the diverse light-curve shapes of Type II supernovae (SNe), and whether they come from similar or distinct progenitors, has been actively discussed for decades. Here…
Going Forward with the Nancy Grace Roman Space Telescope Transient Survey: Validation of Precision Forward-Modeling Photometry for Undersampled Imaging
David Rubin, Aleksandar Cikota, Greg Aldering +3
The Nancy Grace Roman Space Telescope (Roman) is an observatory for both wide-field observations and coronagraphy that is scheduled for launch in the mid 2020's. Part of the planne…