1st Abstract
| Title (1st Abstract) | Bilateral symmetry in supernova remnants and the connection to the Galactic magnetic field |
| First Author | Jennifer West |
| Affiliation | University of Manitoba |
| Additional Authors | Samar Safi-Harb, Tess Jaffe, Gilles Ferrand, Roland Kothes, Tom Landecker, Tyler Foster |
| Presentation options | |
| Session | 7. SNRs as probes and drivers of galaxy structure |
| 1st Abstract | We will present models of the radio synchrotron emission from Galactic Supernova Remnants (SNRs) that use current models of Galactic magnetic field to simulate SNR emission as a function of their position in the Galaxy. This work reveals a connection between SNRs and their environment and a relationship between the angle of the symmetry axis of bilateral SNRs and the Galactic magnetic field. Results from studying the impact of the so-called quasi-parallel and quasi-perpendicular cosmic ray electron acceleration scenarios will also be presented. This relationship has implications for understanding the magnetic field geometry and cosmic ray electron distribution in SNRs, and possibly even a new method for determining distances to features of the Galactic magnetic field as well as distances to some SNRs. |
2nd Abstract
| Title (2nd abstract) | Cygnus Loop: A double bubble? |
| First Author (2nd abstract) | Jennifer West |
| Affiliation (2nd abstract) | University of Manitoba |
| Additional Authors (2nd abstract) | S. Safi-Harb, I. Reichardt, J. Stil, R. Kothes, T. Jaffe, & GALFACTS team |
| Session (2nd abstract) | 1. Radiation studies from gamma-rays to radio in Galactic and Extragalactic SNRs |
| 2nd Abstract | The Cygnus Loop is a well-studied, large, bright and nearby supernova remnant (SNR) that has been observed across the electromagnetic spectrum. It is believed to be an SNR shell with a blow-out region in the south. However, it has also been suggested that this object is in fact two SNRs. We consider this two-SNR scenario by using a multi-wavelength view, focusing on new multi-frequency radio polarization data from the GALFACTS survey, with the addition of microwave (Planck), infrared (WISE), ultraviolet (GALEX), X-ray (ROSAT), and gamma-ray (Fermi-LAT) data. In addition, we present modelling efforts that support the 2-SNR interpretation. |
Account
| First Name | Jennifer |
| Last Name | West |
| Institution | University of Manitoba |
| Country | Canada |