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Table 18

Flux comparison of SNRs and SNR candidates from the XMM LP-total catalogue which have counterparts in ROSAT, and/or Chandra catalogues that are not classified as SNRs.

No.  XLPt Chandra PFJ93 SHP97 SHL2001 Fvar Svar Remark‡
XID Flux with error in 10-15 erg cm-2 s-1
(1) (2) (3) (4) (5) (6) (7) (8) (9)
294 18.50 ± 0.85 53.27 ± 6.69 46.78 ± 7.87 2.88 5.16
472 3.15 ± 0.69 26.09 ± 6.07 8.28 3.76 468 brt
969 53.51 ± 1.35 84.51 ± 15.97+ 34.55 ± 6.91 89.06 ± 11.92 2.58 3.96
1079 4.19 ± 0.59 20.06 ± 6.24 4.79 2.53 brt
1291 14.55 ± 0.75 16.04*  >24.0 35.22 ± 8.47 40.93 ± 7.87 2.81 3.33
1741 4.12 ± 0.65 4.17† 1.01 – brt
1793 3.70 ± 0.52 26.08 ± 6.46 7.06 3.46 1799 brt

Notes. 

(‡)

Source number (from XMM LP-total catalogue) of another (brighter) XMM LP-total source which correlate with the same ROSAT source as the XMM LP-total source given in Col. 1; brt: XMM LP-total flux is below the ROSAT detection threshold (5.3  ×  10-15 erg cm-2 s-1). ROSAT and Chandra count rates are converted to 0.2–4.5 keV fluxes, using WebPIMMS and assuming a foreground absorption of NH  = 6.6  ×  1020 cm-2 and a photon index of Γ = 1.7: ECFSHP97 = 2.229 × 10-14 erg cm-2 cts-1, ECFSHL2001 = 2.249 × 10-14 erg cm-2 cts-1, ECFHRI = 6.001 × 10-14 erg cm-2 cts-1, †: ECFDKG2004 = 5.56 × 10-12 erg cm-2 cts-1.

(+)

For WGK2004 the luminosity given in Table 2 of WGK2004 was converted to XID flux using FXID[erg cm-2 s-1] = 6.654 × 10-15 × LWGK2004[1036 erg s-1].

(*)

For VG2007 the luminosity given in Table 2 of VG2007 was converted to XID flux using FXID[erg cm-2 s-1] = 9.433 × 10-15 × LVG2007[1036 erg s-1].

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