RXJ0806.3+1527: a double degenerate binary with the shortest known orbital period (321s)

G. L. Israel, W. Hummel, S. Covino +13

We carried out optical observations of the field of the X-ray pulsator RXJ0806.3+1527. A blue V=21.1 star was found to be the only object consistent with the X-ray position. VLT FO…