5XMM J184048.1-045754

5XMM-DR15 stacked source · SRCID 3001334010100044
Position: 18h40m48.15s -04d57m54.0s (280.20064°, -4.96499°)
EP flux
6.65e-16 ± 2.7e-15 erg cm-2 s-1
CLASSX
Star (0.999)
Detections
3

SRCID 3001334010100044
IAUNAME 5XMM J184048.1-045754
SC_RA 18h40m48.15s (280.20064°)
SC_DEC -04d57m54.0s (-4.96499°)
RADEC_ERR 0.98 arcsec
LII / BII 27.3022° / 0.0955°
N_CONTRIB 3 (detections)
N_OBS 5 (observations covering the position)
MJD_FIRST 52552.123 (2002-10-05 02:57:09.000 UTC)
MJD_LAST 57844.199 (2017-04-01 04:46:01.000 UTC)

Stacked EPIC flux

EP flux (0.2-12 keV): 6.65e-16 ± 2.7e-15 erg cm-2 s-1

Hardness ratios
HR1
-0.85 ± 0.19
0.2-0.5 / 0.5-1.0 keV
HR2
-0.90 ± 0.92
0.5-1.0 / 1.0-2.0 keV
HR3
-0.62 ± 7.81
1.0-2.0 / 2.0-4.5 keV
HR4
-1.00 ± 192.84
2.0-4.5 / 4.5-12.0 keV
Extent: 0.00 arcsec (ML -2.0) SUM_FLAG: 4
Long-term lightcurve

Star

CLASSX outlier: 3.68

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
5606399
Match probability
0.6
FilterMag (AB)Err
UVW2
UVM2
UVW1 20.691 0.082
U 19.327 0.025
B 17.183 0.009
V
Gaia DR3
Source ID
4256677563810259456
Match probability
0.995
Parallax
0.198 ± 0.042 mas
Proper motion
(0.41, -1.50) mas/yr
Magnitudes
G=15.38, BP=16.27, RP=14.41
Distance
3652 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 3.76e-15 (+9.6e-15 / −1.5e-15) erg cm−2 s−1
NH 2.41e+23 (+2.6e+24 / −4.8e+21) cm−2
Photon index (Γ) 1.84 (+2.60 / −1.25)
DoF 171
p-value 0.62
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.