Reconstructing the Scene: New Views of Supernovae and Progenitors from the SNSPOL Project

Jennifer L. Hoffman, G. Grant Williams, Douglas C. Leonard, Christopher Bilinski, Luc Dessart, Leah N. Huk, Jon C. Mauerhan, Peter Milne, Amber L. Porter, Nathan Smith, Paul S. Smith

Research output: Contribution to journalArticle

Abstract

Because polarization encodes geometrical information about unresolved scattering regions, it provides a unique tool for analyzing the 3-D structures of supernovae (SNe) and their surroundings. SNe of all types exhibit time-dependent spectropolarimetric signatures produced primarily by electron scattering. These signatures reveal physical phenomena such as complex velocity structures, changing illumination patterns, and asymmetric morphologies within the ejecta and surrounding material. Interpreting changes in polarization over time yields unprecedentedly detailed information about supernovae, their progenitors, and their evolution. Begun in 2012, the SNSPOL Project continues to amass the largest database of time-dependent spectropolarimetric data on SNe. I present an overview of the project and its recent results. In the future, combining such data with interpretive radiative transfer models will further constrain explosion mechanisms and processes that shape SN ejecta, uncover new relationships among SN types, and probe the properties of progenitor winds and circumstellar material.

Original languageEnglish (US)
Pages (from-to)54-58
Number of pages5
JournalProceedings of the International Astronomical Union
Volume12
Issue numberS329
DOIs
StatePublished - Nov 1 2016

Fingerprint

supernovae
ejecta
polarization
scattering
physical phenomena
signatures
velocity structure
radiative transfer
explosion
probe
explosions
electron
electron scattering
illumination
project
probes
material

Keywords

  • astronomical databases:miscellaneous
  • polarization
  • supernovae: general

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

Hoffman, J. L., Grant Williams, G., Leonard, D. C., Bilinski, C., Dessart, L., Huk, L. N., ... Smith, P. S. (2016). Reconstructing the Scene: New Views of Supernovae and Progenitors from the SNSPOL Project. Proceedings of the International Astronomical Union, 12(S329), 54-58. https://doi.org/10.1017/S1743921317003052

Reconstructing the Scene : New Views of Supernovae and Progenitors from the SNSPOL Project. / Hoffman, Jennifer L.; Grant Williams, G.; Leonard, Douglas C.; Bilinski, Christopher; Dessart, Luc; Huk, Leah N.; Mauerhan, Jon C.; Milne, Peter; Porter, Amber L.; Smith, Nathan; Smith, Paul S.

In: Proceedings of the International Astronomical Union, Vol. 12, No. S329, 01.11.2016, p. 54-58.

Research output: Contribution to journalArticle

Hoffman, JL, Grant Williams, G, Leonard, DC, Bilinski, C, Dessart, L, Huk, LN, Mauerhan, JC, Milne, P, Porter, AL, Smith, N & Smith, PS 2016, 'Reconstructing the Scene: New Views of Supernovae and Progenitors from the SNSPOL Project', Proceedings of the International Astronomical Union, vol. 12, no. S329, pp. 54-58. https://doi.org/10.1017/S1743921317003052
Hoffman, Jennifer L. ; Grant Williams, G. ; Leonard, Douglas C. ; Bilinski, Christopher ; Dessart, Luc ; Huk, Leah N. ; Mauerhan, Jon C. ; Milne, Peter ; Porter, Amber L. ; Smith, Nathan ; Smith, Paul S. / Reconstructing the Scene : New Views of Supernovae and Progenitors from the SNSPOL Project. In: Proceedings of the International Astronomical Union. 2016 ; Vol. 12, No. S329. pp. 54-58.
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