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Table A.1

Synoptic table containing the main results concerning the two CVs identified in the present sample of ROSAT sources.

Object Hα Hβ He ii λ4686 R a d L X

EW Flux EW Flux EW Flux mag (pc)

1RXS J083842.1−282723 180 ± 5 53.6 ± 1.6 88 ± 3 68 ± 2 1.1 ± 0.2 0.89 ± 0.18 17.6 ~530 2.6
1RXS J154439.4−112820 23.0 ± 0.7 2.76 ± 0.08 18.0 ± 0.9 1.9 ± 0.1 8.9 ± 0.9 0.95 ± 0.10 18.4 ~760 7.2

Notes. Note: EWs are expressed in Å; line fluxes are in units of 10-15 erg cm-2 s-1; whereas the 0.1–2.4 keV X-ray luminosities are in units of 1031 erg s-1.

(a)

From the USNO-A2.0 catalog.

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