An international team of astronomers reports that the transient Gaia18aen discovered by ESA’s Gaia spacecraft turns out to be a symbiotic star. This makes it the first symbiotic star identified by this astrometric satellite. The finding is detailed in a paper published September 30 on arXiv.org.
Source:
https://phys.org/news/2020-10-symbiotic-star-gaia-satellite.html