5XMM J225441.4-173923

5XMM-DR15 stacked source · SRCID 3001294010100038
Position: 22h54m41.40s -17d39m23.4s (343.67249°, -17.65650°)
EP flux
1.00e-14 ± 2.2e-15 erg cm-2 s-1
CLASSX
Star (0.998)
Detections
10

SRCID 3001294010100038
IAUNAME 5XMM J225441.4-173923
SC_RA 22h54m41.40s (343.67249°)
SC_DEC -17d39m23.4s (-17.65650°)
RADEC_ERR 0.42 arcsec
LII / BII 46.1789° / -61.4848°
N_CONTRIB 10 (detections)
N_OBS 10 (observations covering the position)
MJD_FIRST 51877.756 (2000-11-29 18:08:56.000 UTC)
MJD_LAST 59199.874 (2020-12-16 20:58:40.000 UTC)

Stacked EPIC flux

EP flux (0.2-12 keV): 1.00e-14 ± 2.2e-15 erg cm-2 s-1

Hardness ratios
HR1
0.66 ± 0.05
0.2-0.5 / 0.5-1.0 keV
HR2
-0.30 ± 0.06
0.5-1.0 / 1.0-2.0 keV
HR3
-0.62 ± 0.11
1.0-2.0 / 2.0-4.5 keV
HR4
-0.42 ± 0.41
2.0-4.5 / 4.5-12.0 keV
Extent: 0.00 arcsec (ML 12.4) SUM_FLAG: 0
Long-term lightcurve

Star

CLASSX outlier: 3.19

Class probabilities
Class taxonomy
  • AGN — active galactic nucleus.
  • Bkg_AGN — background AGN.
  • Star — Galactic star.
  • Gal_XRB — Galactic X-ray binary.
  • Extragal_XRB — extragalactic X-ray binary.
  • CV — cataclysmic variable.
  • Extended — cluster or galaxy.

Optical Monitor (OM)
OM Source ID
6508574
Match probability
0.933
FilterMag (AB)Err
UVW2 18.899 0.044
UVM2 18.527 0.017
UVW1 16.230 0.003
U 15.240 0.002
B 14.034 0.003
V 13.493 0.002
Gaia DR3
Source ID
2403137526140786176
Match probability
0.99
Parallax
1.317 ± 0.015 mas
Proper motion
(-12.44, -8.67) mas/yr
Magnitudes
G=13.46, BP=13.81, RP=12.94
Distance
734 pc
AllWISE
Name
J225441.34-173924.9
Match probability
0.994
BandMagErr
W1 11.843 0.022
W2 11.904 0.023
W3 11.646 0.245
W4 8.782
CLASSOPT
Class
Star
Star
1.00
AGN
0.00
Galaxy
0.00

No redshift estimate available for this source.

Stacked power-law fit
Unabsorbed flux 1.34e-14 (+1.7e-14 / −1.1e-14) erg cm−2 s−1
NH 1.52e+20 (+8.1e+20 / −2.9e+19) cm−2
Photon index (Γ) 2.19 (+2.59 / −1.92)
DoF 99
p-value 0.444
Quality flag 0

No variability data available for this source.

No contributing observations found.

Sky view (optical)

DSS2 colour optical image. The header thumbnail shows the XMM-Newton X-ray image; use the layers menu in the toolbar to switch surveys.

Hardness-ratio diagram

The per-observation light curve is shown in the X-ray properties section above.