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NEUTRINO_FIELD00025

NEUTRINO

25

/neutrino

200926A: Swift observation summary

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About tiled field analysis.

So far 4 fields have been scheduled for observations. Data are available and processed for 4 of these.

• 13720 — 970 s of cleaned data taken between 2020-09-26 11:44:33 and 2020-09-26 13:45:03
• 13721 — 967 s of cleaned data taken between 2020-09-26 11:55:24 and 2020-09-26 13:38:57
• 13722 — 965 s of cleaned data taken between 2020-09-26 12:06:10 and 2020-09-26 13:26:21
• 13723 — 902 s of cleaned data taken between 2020-09-26 12:16:40 and 2020-09-26 13:32:47

3 fields were processed but not included in the analysis. This is because, after standard processing and the removal of times contaminated by light reflected off the bright Earth, there was too little data (<100 s) for source detection to be performed.

Details of afterglow candidates

1 sources were found which matches the afterglow criteria.

Coordinate type: SexagesimalDecimal

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Rank3	Dist from IceCube pos	Exposure	Notes	Vizier
6 [details]	06h 25m 48.30s96.45125°	-04° 31′ 11.5″-4.51987°	3.3′′ *	Good	2 (O)	20.2′	965 s	The source is 3.7-σ above the RASS limit. This source may be affected by optical loading Matches SIMBAD source: Gaia DR3 3104506437197663232, 2.3″ away.
Mean XRT rate: 5.3 (±1.2) ×10-2 ct s-1 Peak XRT rate: 5.3 (±1.2) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.03 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.073 (±0.017) ct s-1 Peak XRT rate converted to PSPC: 0.073 (±0.017) ×10-2 ct s-1 Mean XRT flux: 1.18 (±0.27) ×10-12 erg cm-1s-1 Peak XRT flux: 1.18 (±0.27) ×10-12 erg cm-1s-1 Products: Light curve | Spectrum | Enhanced position

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the LSXPS documentation.

³ T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.

^* The position was enhanced using astrometry derived from the Swift UVOT.
^† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.

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Find an upper limit.

Sources found so far

So far 7 sources have been found in the XRT data. 4 sources match catalogued sources.

Coordinate type: SexagesimalDecimal

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Rank3	Dist from IceCube pos	Exposure	Notes	Vizier
1 [details]	06h 26m 01.48s96.50618°	-03° 55′ 25.6″-3.92377°	8.5′′	Good	3 (U)	17.3′	970 s	Matches SIMBAD source: Gaia DR2 3116642228070616192, 2.6″ away.
Mean XRT rate: 1.0 (+0.5, -0.4) ×10-2 ct s-1 Peak XRT rate: 1.0 (+0.5, -0.4) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.03 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 10 (+4, -3) ct s-1 Peak XRT rate converted to PSPC: 10 (+4, -3) ×10-3 ct s-1 Mean XRT flux: 4.5 (+2.0, -1.6) ×10-13 erg cm-1s-1 Peak XRT flux: 4.5 (+2.0, -1.6) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum
2 [details]	06h 25m 45.89s96.44122°	-04° 22′ 03.2″-4.36755°	6.4′′	Good	4 (K)	12.5′	1.9 ks	Matches SIMBAD source: 1RXS J062546.0-042207, 4.6″ away. Matches known X-ray source: 1RXH J062545.9-042207 (from ROSAT/ROSHRI), 4.56925102813658″ away.
Mean XRT rate: 1.2 (+0.4, -0.3) ×10-2 ct s-1 Peak XRT rate: 1.2 (+0.4, -0.3) ×10-2 ct s-1 2.91 σ below the catalogued flux from ROSAT/ROSHRI. RASS PSPC 3-σ upper limit: 0.0×100 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.011 (+0.004, -0.003) ct s-1 Peak XRT rate converted to PSPC: 0.011 (+0.004, -0.003) ×10-2 ct s-1 Mean XRT flux: 4.1 (+1.4, -1.1) ×10-13 erg cm-1s-1 Peak XRT flux: 4.1 (+1.4, -1.1) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum
3 [details]	06h 26m 51.78s96.71575°	-04° 21′ 29.7″-4.35825°	5.2′′ *	Good	3 (U)	12.5′	1.9 ks	Matches SIMBAD source: Cl* NGC 2232 CPK 18627, 5.8″ away.
Mean XRT rate: 1.2 (+0.4, -0.3) ×10-2 ct s-1 Peak XRT rate: 1.2 (+0.4, -0.3) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.02 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.022 (+0.007, -0.006) ct s-1 Peak XRT rate converted to PSPC: 0.022 (+0.007, -0.006) ×10-2 ct s-1 Mean XRT flux: 1.9 (+0.6, -0.5) ×10-13 erg cm-1s-1 Peak XRT flux: 1.9 (+0.6, -0.5) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum | Enhanced position
4 [details]	06h 25m 08.08s96.28367°	-04° 09′ 04.3″-4.15120°	12.1′′	Good	3 (U)	17.6′	902 s
Mean XRT rate: 10 (+5, -4) ×10-3 ct s-1 Peak XRT rate: 10 (+5, -4) ×10-3 ct s-1 RASS PSPC 3-σ upper limit: 0.03 ct s-1 (PSPC count-rate) Products: Light curve
5 [details]	06h 25m 46.88s96.44534°	-04° 17′ 12.7″-4.28686°	11.7′′	Good	3 (U)	9.1′	1.9 ks
Mean XRT rate: 6.7 (+3.0, -2.3) ×10-3 ct s-1 Peak XRT rate: 6.7 (+3.0, -2.3) ×10-3 ct s-1 RASS PSPC 3-σ upper limit: 0.01 ct s-1 (PSPC count-rate) Products: Light curve
6 [details]	06h 25m 48.30s96.45125°	-04° 31′ 11.5″-4.51987°	3.3′′ *	Good	2 (O)	20.2′	965 s	The source is 3.7-σ above the RASS limit. This source may be affected by optical loading Matches SIMBAD source: Gaia DR3 3104506437197663232, 2.3″ away.
Mean XRT rate: 5.3 (±1.2) ×10-2 ct s-1 Peak XRT rate: 5.3 (±1.2) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.03 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.073 (±0.017) ct s-1 Peak XRT rate converted to PSPC: 0.073 (±0.017) ×10-2 ct s-1 Mean XRT flux: 1.18 (±0.27) ×10-12 erg cm-1s-1 Peak XRT flux: 1.18 (±0.27) ×10-12 erg cm-1s-1 Products: Light curve | Spectrum | Enhanced position
7 [details]	06h 25m 46.32s96.44301°	-04° 30′ 35.7″-4.50992°	9.4′′	Poor	3 (U)	19.9′	965 s	This source may be affected by optical loading
Mean XRT rate: 10 (+5, -4) ×10-3 ct s-1 Peak XRT rate: 10 (+5, -4) ×10-3 ct s-1 RASS PSPC 3-σ upper limit: 0.03 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.013 (+0.007, -0.005) ×10-2 ct s-1 Peak XRT rate converted to PSPC: 0.013 (+0.007, -0.005) ×10-2 ct s-1 Mean XRT flux: 1.90 (+1.02, -0.75) ×10-13 erg cm-1s-1 Peak XRT flux: 1.90 (+1.02, -0.75) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the LSXPS documentation.

³ T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.

^* The position was enhanced using astrometry derived from the Swift UVOT.
^† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.

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