K. Beuermann et al., Identification of soft high galactic latitude RASS X-ray sources - II. Sources with PSPC count rate CR < 0.5 cts/s, ASTRON ASTR, 347(1), 1999, pp. 47-54
We present a summary of spectroscopic identifications of bright soft high g
alactic latitude X-ray sources from the ROSAT All-Sky Survey with total PSP
C count rates 0.11 < CR < 0.5 cts s(-1) and hardness ratios HR1 < 0. This s
tudy supplements the identification program of a complete sample of sources
with CR greater than or equal to 0.5 cts s(-1) presented previously. Spect
roscopic identifications are presented for 70 of 77 sources, 5 sources are
identified by other means, and subsidiary information is given for 2 as yet
unidentified sources. In practically all cases, a unique optical counterpa
rt exists. As for the brighter fraction of the sample, the largest source c
lasses are Seyfert 1 galaxies, magnetic cataclysmic variables, and hot whit
e dwarfs. In the Galactic Pole caps at \b\ greater than or similar to 40 de
grees, Seyfert galaxies dominate, whereas at intermediate latitudes galacti
c objects as magnetic cataclysmic variables and white dwarfs become relativ
ely more frequent.