Investigation of the Progenitors of the Type Ia Supernovae Associated With the LMC Supernova Remnants 0505-67.9 and 0509-68.7

Abstract

Although Type Ia supernovae have been heavily scrutinized due to their use in making cosmological distance estimates, we are still unable to definitively identify the progenitors for the entire population. While answers have been presented for certain specific systems, a complete solution remains elusive. We present observations of two supernova remnants (SNRs) in the Large Magellanic Cloud, SNR 0505-67.9 and SNR 0509-68.7, for which we have identified the center of the remnant and the 99.73% containment central region in which any companion star left over after the supernova must be located. Both remnants have a number of potential ex-companion stars near their centers; all possible single and double degenerate progenitor models remain viable for these two supernovae. Future observations may be able to identify the true ex-companions for both remnants.

8 pages, 4 figures, 4 tables, ApJ In Press; Table 2 truncated, full version available in published paper or directly from authors

References in corpus (10)

• Discriminating the Progenitor Type of Supernova Remnants with Iron K-Shell Emission
• A Problem with the Clustering of Recent Measures of the Distance to the Large Magellanic Cloud
• Spectral Identification of an Ancient Supernova using Light Echoes in the LMC
• No surviving evolved companions to the progenitor of supernova SN 1006
• The Stellar Ancestry of Supernovae in the Magellanic Clouds - I. the Most Recent Supernovae in the Large Magellanic Cloud
• The Progenitors of Type Ia Supernovae
• Search for surviving companions in type Ia supernova remnants
• Spitzer Observations of the Type Ia Supernova Remnant N103B: Kepler's Older Cousin?
• The Diffuse Source at the Center of LMC SNR 0509-67.5 is a Background Galaxy at z = 0.031
• A method to identify the companion stars of type Ia supernovae in young supernova remnants

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• Evolution of Main-Sequence-like Surviving Companions in Type Ia Supernova Remnants
• The HST Non-Detection of SN Ia 2011fe 11.5yr After Explosion Further Restricts Single-Degenerate Progenitor Systems
• Searching for Balmer-dominated Type Ia Supernova Remnants in M33
• Spatially Resolved Chandra Spectroscopy of Supernova Remnant DEM L71 in the Large Magellanic Cloud