LSXPS J174020.1-281843

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

This image is 160 pixels (=6.3′ to a side).
LSXPS J174020.1-281843 is indicated by the cross-hairs. What do the colours mean?The next nearest source is 2.1′ away and the nearest good/reasonable source is 2.3′ away.

Detection flag:: Poor
Total exposure:: 16 ks
RA (J2000):: 17^h 40^m 20.15^s=265.0840°
Dec (J2000):: -28° 18′ 43.4″=-28.3120°
Err₉₀:: 4.8′′(XRT+2MASS)
l:: +359° 55′ 16.5″=359.9212°
b:: +01° 18′ 52.2″=+1.3145°
Mean count rate: 2.9 (+5.7, -2.9) ×10^-4 ct s^-1
Galactic N_H: 9.5×10²¹ cm^-2
HRs: HR1=0.826 (+0.174, +0.014)
HR2=-0.1 (+0.5, -0.4)
Observed between:: 2005-09-03 07:00 and 2025-05-20 20:42
Present in:: 89 datasets (total)
19 datasets (with blind detections)
21 datasets (count-rate detections)
External catalogue matches:: 5
Search Vizier | Simbad.
LSXPS ID: 649802

Nearest neighbour

LSXPS J174011.1-281924 — 2.1′ away

Nearest 'OK' neighbour

— 2.3′ 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)	2.9 (+5.7, -2.9) ×10^-4	0.00 (+1.57, -0.00) ×10^-4	4 (±4) ×10^-4	1.7 (+4.4, -1.7) ×10^-4
Peak rate (ct s^-1)	2.9 (+5.7, -2.9) ×10^-4	0.00 (+1.57, -0.00) ×10^-4	4 (±4) ×10^-4	2.40 (+1.29, -0.98) ×10^-3
Detected?	Blind: No Retrospective: No	Blind: No Retrospective: No	Blind: No Retrospective: No	Yes
3 σ UL (ct s^-1)	< 2.54× 10^-3	< 7.96× 10^-4	< 2.15× 10^-3	N/A
Counts detected	20	0	10	10
BG counts	17.90	3.195	6.737	8.792
Corr fact	2.32	2.32	2.32	2.32
P_const,χ	5.50×10^-2 (obs) <10^-16 (snapshot)	5.50×10^-2 (obs) 1.00 (snapshot)	5.50×10^-2 (obs) <10^-16 (snapshot)	5.50×10^-2 (obs) 1.00 (snapshot)