LSXPS J173940.9-273640

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

This image is 160 pixels (=6.3′ to a side).
LSXPS J173940.9-273640 is indicated by the cross-hairs. What do the colours mean?The next nearest source is 55″ away and the nearest good/reasonable source is 7.2′ away.

Detection flag:: Poor, but may be affected by, or due to, stray light.
Total exposure:: 24 ks
RA (J2000):: 17^h 39^m 40.94^s=264.9206°
Dec (J2000):: -27° 36′ 40.8″=-27.6113°
Err₉₀:: 6.4′′(XRT+2MASS)
l:: +00° 26′ 19.1″=0.4386°
b:: +01° 48′ 31.7″=+1.8088°
Mean count rate: 5 (+5, -4) ×10^-4 ct s^-1
Galactic N_H: 8.4×10²¹ cm^-2
HRs: HR1=0.1 (+0.9, -0.3)
HR2=-0.19 (+0.27, -0.81)
Observed between:: and 2024-10-24 07:26
Present in:: 102 datasets (total)
3 datasets (with blind detections)
4 datasets (count-rate detections)
External catalogue matches:: 7
Search Vizier | Simbad.
LSXPS ID: 378499

Nearest neighbour

LSXPS J173945.0-273648 — 55″ away

Nearest 'OK' neighbour

LSXPS J173935.7-272936 — 7.2′ away

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This source is in a field with stray light; however, this should have been correctly handled.

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)	5 (+5, -4) ×10^-4	2.7 (+2.8, -2.1) ×10^-4	2.9 (+3.1, -2.4) ×10^-4	0.00 (+3.30, -0.00) ×10^-4
Peak rate (ct s^-1)	2.3 (+2.2, -1.4) ×10^-2	2.7 (+2.8, -2.1) ×10^-4	1.2 (+0.7, -0.5) ×10^-3	0.00 (+3.30, -0.00) ×10^-4
Detected?	Yes	Blind: No Retrospective: No	Blind: No Retrospective: No	Blind: No Retrospective: No
3 σ UL (ct s^-1)	N/A	< 1.43× 10^-3	< 1.58× 10^-3	< 1.21× 10^-3
Counts detected	17	5	7	5
BG counts	12.29	2.710	4.527	5.304
Corr fact	1.55	1.55	1.55	1.55
P_const,χ	0.12 (obs) 5.46×10^-2 (snapshot)	0.12 (obs) 4.51×10^-4 (snapshot)	0.12 (obs) 1.00 (snapshot)	0.12 (obs) 5.38×10^-2 (snapshot)