Searching for Balmer-dominated Type Ia Supernova Remnants in M33

Chris Ding-Jyun Lin, You-Hua Chu, Po-Sheng Ou +1

We have searched for Balmer-dominated Type Ia SNRs in M33 by selecting thermal X-ray sources with $L_{\mathrm{X}}\ge 5\times 10^{35}$ ergs s${}^{-1}$, identifying associated H$\alpha$ emission…