Confirmation Of Two Galactic Supernova Remnant Candidates Discovered by THOR

Dokara, Rohit; Roy, Nirupam; Beuther, Henrik; Anderson, L. D.; Rugel, Michael; Stil, Jeroen; Wang, Yuan; Soler, Juan D.; Shanahan, Russel

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Confirmation Of Two Galactic Supernova Remnant Candidates Discovered by THOR

MPS-Authors

Dokara, Rohit
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Roy, Nirupam
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Beuther, Henrik
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Anderson, L. D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Rugel, Michael
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Stil, Jeroen
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wang, Yuan
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Soler, Juan D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Shanahan, Russel
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

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https://ui.adsabs.harvard.edu/abs/2018ApJ...866...61D
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Citation

Dokara, R., Roy, N., Beuther, H., Anderson, L. D., Rugel, M., Stil, J., et al. (2018). Confirmation Of Two Galactic Supernova Remnant Candidates Discovered by THOR. The Astrophysical Journal, 866.

Cite as: https://hdl.handle.net/21.11116/0000-0005-CDF8-D

Abstract

Anderson et al. identified 76 candidate supernova remnants (SNRs) using data from the H I/OH/Recombination line survey of the Milky Way. The spectral index and polarization properties can help distinguish between SNRs and H II regions, which are often confused. We confirm two SNR candidates using spectral index data and morphology. However, we observe that the fractional linear polarization cannot distinguish between SNRs and H II regions, likely due to contamination by diffuse Galactic synchrotron emission. We also comment on the association of SNR candidates with pulsars through geometric and age considerations.