5XMM J025700.5+000250
| SRCID | 3005602030100050 |
|---|---|
| IAUNAME | 5XMM J025700.5+000250 |
| SC_RA | 02h57m00.55s (44.25228°) |
| SC_DEC | +00d02m50.3s (0.04729°) |
| RADEC_ERR | 0.59 arcsec |
| LII / BII | 176.1118° / -49.4053° |
| N_CONTRIB | 2 (detections) |
| N_OBS | 3 (observations covering the position) |
| MJD_FIRST | 51954.839 (2001-02-14 20:08:26.000 UTC) |
| MJD_LAST | 57990.269 (2017-08-25 06:27:45.000 UTC) |
Stacked EPIC flux
EP flux (0.2-12 keV): 1.09e-14 ± 3.1e-15 erg cm-2 s-1
Hardness ratios
Long-term lightcurve
No light-curve points available.
AGN
CLASSX outlier: -0.389
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.
- OM Source ID
- 900462
- Match probability
- 0.994
| Filter | Mag (AB) | Err |
|---|---|---|
| UVW2 | — | — |
| UVM2 | — | — |
| UVW1 | 21.725 | 0.161 |
| U | 21.753 | 0.097 |
| B | — | — |
| V | — | — |
- Name
- J025700.53+000248.9
- Match probability
- 0.995
| Band | Mag | Err |
|---|---|---|
| W1 | 16.107 | 0.052 |
| W2 | 15.229 | 0.083 |
| W3 | 11.850 | 0.192 |
| W4 | 8.982 | 0.391 |
- Class
- QSO
| Spectroscopic (zsp) | 1.64800 |
|---|---|
| Photometric (TPZ) | 1.2756 (conf 0.62) |
| Photometric (Le Phare) | 1.0140 (conf 0.57) |
Spectroscopic redshifts (when present) are the most reliable. Photometric estimates carry a per-algorithm confidence flag.
Stacked power-law fit
| Unabsorbed flux | 8.10e-15 (+9.8e-15 / −6.9e-15) erg cm−2 s−1 |
|---|---|
| NH | 7.88e+19 (+3.2e+20 / −2.0e+19) cm−2 |
| Photon index (Γ) | 2.10 (+2.29 / −1.92) |
| DoF | 245 |
| p-value | 0.358 |
| Inter-instrument norm. | 1.21 (1.01–1.47) |
| 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
No hardness-ratio pairs available for this source.
The per-observation light curve is shown in the X-ray properties section above.