It has been a long search for a companion that can survive a supernova impact. And the search is still going on. These surviving companion objects are extremely hard to detect but with new data coming from the GAIA mission may provide some hope to find these objects.
The evolution of surviving companions in Type Ia supernova remnants has been a topic of interest among astronomers for many years. Type Ia supernovae are thought to be the result of a white dwarf star accreting matter from a companion star until it reaches a critical mass and explodes. The nature of the companion star has been a subject of debate, with some studies suggesting that it is a red giant and others suggesting that it is a main sequence star.
Recent studies have provided evidence for the existence of surviving companions in Type Ia supernova remnants. For example, in a study published in the Astrophysical Journal in 2012, researchers used the Chandra X-ray Observatory to observe the Type Ia supernova remnant SNR 0509-67.5 in the Large Magellanic Cloud. They found evidence for the presence of a surviving companion star, which they identified as a main sequence star with a mass of about 1.4 times that of the Sun.
Another study, published in the same journal in 2014, used the same observatory to observe the Type Ia supernova remnant SNR 0509-68.7, also in the Large Magellanic Cloud. This study found evidence for the presence of a surviving companion star, which they identified as a red giant with a mass of about 2.8 times that of the Sun. These studies provide strong evidence for the existence of surviving companions in Type Ia supernova remnants, and suggest that the nature of the companion star may vary depending on the specific circumstances of the supernova explosion. Further research is needed to better understand the role of the companion star in the evolution of Type Ia supernovae, and to determine the prevalence of surviving companions in these remnants.