LSXPS J202740.4+394654

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

This image is 160 pixels (=6.3′ to a side).
LSXPS J202740.4+394654 is indicated by the cross-hairs. What do the colours mean?The next nearest source is 53″ away and the nearest good/reasonable source is 77″ away.

Detection flag:: Good
Total exposure:: 63 ks
RA (J2000):: 20^h 27^m 40.49^s=306.9187°
Dec (J2000):: +39° 46′ 54.9″=+39.7819°
Err₉₀:: 3.2′′(XRT+2MASS)
l:: +78° 21′ 42.5″=78.3618°
b:: +00° 44′ 28.8″=+0.7413°
Mean count rate: 1.22 (+0.25, -0.23) ×10^-3 ct s^-1
Galactic N_H: 1.3×10²² cm^-2
HRs: HR1=-0.53 (±0.15)
HR2=-0.4 (±0.4)
Observed between:: 2019-07-20 02:06 and 2025-02-10 22:58
Present in:: 44 datasets (total)
21 datasets (with blind detections)
23 datasets (count-rate detections)
External catalogue matches:: 2
Search Vizier | Simbad.
LSXPS ID: 1028364

Nearest neighbour

LSXPS J202741.2+394747 — 53″ away

Nearest 'OK' neighbour

LSXPS J202745.2+394749 — 77″ away

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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)	1.22 (+0.25, -0.23) ×10^-3	8.6 (+2.0, -1.8) ×10^-4	2.4 (+1.2, -1.0) ×10^-4	7 (+8, -7) ×10^-5
Peak rate (ct s^-1)	2.1 (+1.6, -1.1) ×10^-2	1.47 (+1.41, -0.87) ×10^-2	3.5 (+2.6, -1.7) ×10^-3	3.8 (+2.4, -1.7) ×10^-3
Detected?	Yes	Yes	Yes	Blind: No Retrospective: No
3 σ UL (ct s^-1)	N/A	N/A	N/A	< 4.34× 10^-4
Counts detected	72	45	15	11
BG counts	28.56	14.51	6.478	8.568
Corr fact	1.79	1.79	1.79	1.79
P_const,χ	6.29×10^-10 (obs) 8.13×10^-5 (snapshot)	6.81×10^-9 (obs) 0.23 (snapshot)	6.15×10^-7 (obs) 0.32 (snapshot)	6.15×10^-7 (obs) 7.19×10^-5 (snapshot)