22 citations · 132 across the 22 of their papers we have counts for
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Analyzing Stellar and Interstellar Contributions to Polarization: Modeling Approaches for Hot Stars
R Ignace, A G Fullard, G V Panopoulou +3
Linear polarimetry of unresolved stars is a powerful method for discerning or constraining the geometry of a source and its environment, since spherical sources produce no net pola…
Introducing STARDIS: An Open and Modular Stellar Spectral Synthesis Code
Joshua V. Shields, Wolfgang Kerzendorf, Isaac G. Smith +7
We introduce a new 1D stellar spectral synthesis Python code called stardis. stardis is a modular, open-source radiative transfer code that is capable of spectral synthesis from ne…
StaNdaRT: A repository of standardized test models and outputs for supernova radiative transfer
Stéphane Blondin, Sergei Blinnikov, Fionntan P. Callan +26
We present the first results of a comprehensive supernova (SN) radiative-transfer (RT) code-comparison initiative (StaNdaRT), where the emission from the same set of standardized t…
UV Spectropolarimetry with Polstar: Massive Star Binary Colliding Winds
Nicole St-Louis, Kenneth Gayley, D. John Hillier +13
The winds of massive stars are important for their direct impact on the interstellar medium, and for their influence on the final state of a star prior to it exploding as a superno…
Searching for a Hypervelocity White Dwarf Companion: A Proper Motion Survey of SN 1006
Joshua V. Shields, Wolfgang Kerzendorf, Matthew W. Hosek +7
Type Ia Supernovae (SNe Ia) are securely understood to come from the thermonuclear explosion of a white dwarf as a result of binary interaction, but the nature of that binary inter…
Modeling the Optical to Ultraviolet Polarimetric Variability from Thomson Scattering in Colliding Wind Binaries
Richard Ignace, Andrew Fullard, Manisha Shrestha +5
Massive star binaries are critical laboratories for measuring masses and stellar wind mass-loss rates. A major challenge is inferring viewing inclination and extracting information…
New mass estimates for massive binary systems: a probabilistic approach using polarimetric radiative transfer
Andrew G. Fullard, John T. O'Brien, Wolfgang E. Kerzendorf +4
Understanding the evolution of massive binary stars requires accurate estimates of their masses. This understanding is critically important because massive star evolution can poten…
Ultraviolet Spectropolarimetry with Polstar: Massive Star Binary Colliding Winds
Nicole St-Louis, Kenneth Gayley, Desmond John Hillier +13
As sources of chemical enrichment, ionizing radiation and energetic feedback, massive stars drive the ecology of their host galaxies despite their relative rarity, additionally to…
Ultraviolet Spectropolarimetry:Conservative and Nonconservative Mass Transfer in OB Interacting Binaries
Geraldine J. Peters, Ken Gayley, Richard Ignace +11
One objective of the Polstar spectropolarimetry mission is to characterize the degree of nonconservative mass transfer that occurs at various stages of binary evolution, from the i…
Probabilistic Reconstruction of Type Ia Supernova SN 2002bo
John T. O'Brien, Wolfgang E. Kerzendorf, Andrew Fullard +8
Manual fits to spectral times series of Type Ia supernovae have provided a method of reconstructing the explosion from a parametric model but due to lack of information about model…
The First Dynamical Mass Determination of a Nitrogen-rich Wolf-Rayet Star using a Combined Visual and Spectroscopic Orbit
Noel D. Richardson, Laura Lee, Gail Schaefer +11
We present the first visual orbit for the nitrogen-rich Wolf-Rayet binary, WR 133 (WN5o + O9I) based on observations made with the CHARA Array and the MIRC-X combiner. This orbit r…
Polarization simulations of stellar wind bow shock nebulae. II. The case of dust scattering
Manisha Shrestha, Hilding R. Neilson, Jennifer L. Hoffman +2
We study the polarization produced by scattering from dust in a bow shock-shaped region of enhanced density surrounding a stellar source, using the Monte Carlo radiative transfer c…
A multi-wavelength search for intrinsic linear polarization in Wolf-Rayet winds
Andrew G. Fullard, Nicole St-Louis, Anthony F. J. Moffat +3
Wolf-Rayet stars have strong, hot winds, with mass-loss rates at least a factor of ten greater than their O-star progenitors, although their terminal wind speeds are similar. In th…
Spectropolarimetry of the WR + O Binary WR42
Andrew G. Fullard, Jennifer L. Hoffman, Sophia DeKlotz +3
We present new spectropolarimetric data for WR 42 collected over 6 months at the 11-m Southern African Large Telescope (SALT) using the Robert Stobie Spectrograph.
The Complex Circumstellar and Circumbinary Environment of V356 Sgr
Jamie R. Lomax, Andrew G. Fullard, Michael A. Malatesta +13
We analyze 45 spectropolarimetric observations of the eclipsing, interacting binary star V356 Sgr, obtained over a period of 21 years, to characterize the geometry of the system's…