LSXPS J155059.9-541901

[Spectral/flux information | Temporal information | External catalogue matches | Detections | Non-detections ]

Warnings were associated with this source; it may be spurious or have unreliable properties.

This image is 160 pixels (=6.3′ to a side).
LSXPS J155059.9-541901 is indicated by the cross-hairs. What do the colours mean?The next nearest source is 24″ away and the nearest good/reasonable source is 54″ away.

Detection flag:: Poor
But flagged as: source is in a region marked by manual screening as affected by artifacts or diffuse emission.
Total exposure:: 395 ks
RA (J2000):: 15^h 50^m 59.99^s=237.7500°
Dec (J2000):: -54° 19′ 01.9″=-54.3172°
Err₉₀:: 6.9′′(XRT+2MASS)
l:: +327° 14′ 29.2″=327.2414°
b:: -00° 08′ 55.7″=-0.1488°
Mean count rate: 6.2 (±2.3) ×10^-4 ct s^-1
Galactic N_H: 1.6×10²² cm^-2
HRs: HR1=0.952 (+0.048, -0.013)
HR2=-1.0 (±1.7)
Observed between:: and 2026-02-02 23:49
Present in:: 162 datasets (total)
2 datasets (with blind detections)
4 datasets (count-rate detections)
External catalogue matches:: 7
Search Vizier | Simbad.
LSXPS ID: 644658

Nearest neighbour

LSXPS J155057.3-541855 — 24″ away

Nearest 'OK' neighbour

LSXPS J155055.1-541828 — 54″ away

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This source is in a field which contains diffuse emission / artifacts. Details may be inaccurate.

Spectral / Flux information

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Temporal Information

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Band	Total (0.3—10 keV)	Soft (0.3—1 keV)	Medium (1—2 keV)	Hard (2—10 keV)
Mean rate (ct s^-1)	6.2 (±2.3) ×10^-4	0.00 (+1.46, -0.00) ×10^-5	2.2 (+0.9, -0.8) ×10^-4	0.00 (+2.43, -0.00) ×10^-4
Peak rate (ct s^-1)	7.9 (+1.6, -1.4) ×10^-2	0.00 (+1.46, -0.00) ×10^-5	1.7 (+0.8, -0.6) ×10^-2	0.98 (+0.23, -0.22)
Detected?	Yes	Blind: No Retrospective: No	Blind: No Retrospective: Yes	Yes
3 σ UL (ct s^-1)	N/A	< 5.92× 10^-5	< 4.68× 10^-4	N/A
Counts detected	2124	34	526	1998
BG counts	1954	42.90	464.8	2097
Corr fact	1.42	1.42	1.42	1.46
P_const,χ	5.45×10^-10 (obs) <10^-16 (snapshot)	2.88×10^-10 (obs) 1.00 (snapshot)	3.66×10^-10 (obs) 1.63×10^-3 (snapshot)	2.88×10^-10 (obs) <10^-16 (snapshot)