5XMM J184434.8-025435

5XMM-DR15 stacked source · SRCID 3004654020100164
Position: 18h44m34.85s -02d54m35.6s (281.14521°, -2.90989°)
EP flux
6.81e-15 ± 2.1e-15 erg cm-2 s-1
CLASSX
Star (0.995)
Detections
3

SRCID 3004654020100164
IAUNAME 5XMM J184434.8-025435
SC_RA 18h44m34.85s (281.14521°)
SC_DEC -02d54m35.6s (-2.90989°)
RADEC_ERR 1.03 arcsec
LII / BII 29.5607° / 0.1972°
N_CONTRIB 3 (detections)
N_OBS 11 (observations covering the position)
MJD_FIRST 52717.705 (2003-03-19 16:55:35.000 UTC)
MJD_LAST 55302.956 (2010-04-16 22:56:45.000 UTC)

Stacked EPIC flux

EP flux (0.2-12 keV): 6.81e-15 ± 2.1e-15 erg cm-2 s-1

Hardness ratios
HR1
0.85 ± 0.25
0.2-0.5 / 0.5-1.0 keV
HR2
0.53 ± 0.12
0.5-1.0 / 1.0-2.0 keV
HR3
-0.57 ± 0.12
1.0-2.0 / 2.0-4.5 keV
HR4
-0.41 ± 0.29
2.0-4.5 / 4.5-12.0 keV
Extent: 0.00 arcsec (ML -1.1) SUM_FLAG: 1
Long-term lightcurve

Star

CLASSX outlier: 4.11

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
5628323
Match probability
0.986
FilterMag (AB)Err
UVW2 — —
UVM2 — —
UVW1 20.516 0.054
U 19.114 0.019
B 17.432 0.010
V 16.186 0.013
Gaia DR3
Source ID
4258662143611758208
Match probability
0.991
Parallax
0.816 ± 0.034 mas
Proper motion
(5.01, -4.39) mas/yr
Magnitudes
G=15.57, BP=16.45, RP=14.64
Distance
1142 pc
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 1.69e-14 (+2.5e-14 / −8.8e-15) erg cm−2 s−1
NH 5.52e+22 (+1.4e+23 / −9.3e+21) cm−2
Photon index (Γ) 1.64 (+2.46 / −1.17)
DoF 385
p-value 0.384
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.