Vol. 614
In section 14. Catalogs and data

The stellar content of the XMM-Newton slew survey

Wide-field optical telescopes survey the sky every night. This is especially difficult in the X-ray band, for which we rely only on the ROSAT all-sky survey performed in 1990-1991. In recent years the time spent by the XMM-Newton satellite to slew from one target to the other has been scientifically exploited. This has given us the XMM-Newton Slew Survey (XMMSL), which covers 84% of the sky and counting. In this work Freund and collaborators have used the XMMSL source catalog and correlated it with the Gaia optical catalog to pinpoint X-ray emitting stars. They identified 6815 stars of all spectral types with a majority of late-type stars, providing the largest census so far.