Skip to main content

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

  • Jennifer L. Hoffman (a1), G. Grant Williams (a2) (a3), Douglas C. Leonard (a4), Christopher Bilinski (a3), Luc Dessart (a5), Leah N. Huk (a1), Jon C. Mauerhan (a6), Peter Milne (a3), Amber L. Porter (a7), Nathan Smith (a3) and Paul S. Smith (a3)...

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.

Hide All
Chornock, R., Filippenko, A. V., Li, W., & Silverman, J. M., 2010, ApJ, 713, 1363
Davidson, J. W. Jr, Bjorkman, K. S., Hoffman, J. L., et al., 2014, JAI, 03, 1450009
Dessart, L. & Hillier, D. J., 2011, MNRAS, 415, 3497
Fraser, M., Magee, M., Kotak, R., et al. 2013, ApJ, 779, 8
Hoffman, J. L., Leonard, D. C., Chornock, R., et al. 2008, ApJ, 688, 1186
Hoffman, J. L., Smith, N., Bilinski, C., et al. 2014, AAS, 223, 35421 (
Höflich, P., 1991, A&A, 246, 481
Kasen, D., Nugent, P., Wang, L., et al. 2003, ApJ, 593, 788
Khandrika, H. G., Leonard, D. C., Horst, C., et al. 2014, AAS, 224, 121.16
Leonard, D. C., Filippenko, A. V., Barth, A. J., & Matheson, T., 2000, ApJ, 536, 239
Leonard, D. C., Filippenko, A. V., Ganeshalingam, M., et al. 2006, Nature, 440, 505
Levesque, E. M., Stringfellow, G. S., Ginsburg, A. G., et al. 2014, AJ, 147, 23
Margutti, R., Milisavljevic, D., Soderberg, A. M., et al. 2014, ApJ, 780, 21
Mauerhan, J. C., Smith, N., Filippenko, A. V., et al. 2013, MNRAS, 430, 1801
Mauerhan, J., Williams, G. G., Smith, N., et al. 2014, MNRAS, 442, 1166
Mauerhan, J., Williams, G., Leonard, D. C., et al. 2015, MNRAS, 453, 4467
Porter, A. L., Leising, M. D., Williams, G. G., et al. 2016, ApJ, 828, 24
Ruiz-Lapuente, P., 2014, NewAR, 62, 15
Schmidt, G. D., Elston, R., & Lupie, O. L., 1992, AJ, 104, 1563
Smartt, S. J., 2009, ARA&A, 47, 63
Wang, L. & Wheeler, J. C., 2008, ARAA, 46, 433
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
Please enter your name
Please enter a valid email address
Who would you like to send this to? *



Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed