Two new fast X-ray transients discovered in the galactic plane

(Phys.org)—Astronomers have identified two new X-ray sources in the galactic plane with short outbursts and very fast rise times, a category known as fast X-ray transients (FXTs). The newly detected FXTs were found in the archival data of ESA's INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) spacecraft. The findings are detailed in a paper published Aug. 29 on arXiv.org.