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NEUTRINO_FIELD00034

NEUTRINO

34

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210322A: 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.

• 14201 — 997 s of cleaned data taken between 2021-03-22 04:55:35 and 2021-03-22 05:13:55
• 14202 — 1.0 ks of cleaned data taken between 2021-03-22 05:13:58 and 2021-03-22 05:31:03
• 14203 — 972 s of cleaned data taken between 2021-03-22 05:31:05 and 2021-03-22 06:45:32
• 14204 — 1.0 ks of cleaned data taken between 2021-03-22 06:45:37 and 2021-03-22 07:02:40

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
4 [details]	05h 42m 57.10s85.73792°	-44° 45′ 07.9″-44.75220°	5.6′′ *	Good	2 (O)	10.0′	1.0 ks	Matches known X-ray source: 1RXS J054257.9-444452 (from ROSAT/RASSFSC), 23.2682826255648″ away.
Mean XRT rate: 2.0 (+0.7, -0.6) ×10-2 ct s-1 Peak XRT rate: 2.0 (+0.7, -0.6) ×10-2 ct s-1 -3.20 σ above the catalogued flux from ROSAT/RASSFSC. RASS PSPC 3-σ upper limit: 0.0×100 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.0311 (+0.0107, -0.0088) ct s-1 Peak XRT rate converted to PSPC: 0.0311 (+0.0107, -0.0088) ×10-2 ct s-1 Mean XRT flux: 5.1 (+1.7, -1.4) ×10-13 erg cm-1s-1 Peak XRT flux: 5.1 (+1.7, -1.4) ×10-13 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 4 sources have been found in the XRT data. 2 sources match catalogued sources.

Coordinate type: SexagesimalDecimal

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Rank3	Dist from IceCube pos	Exposure	Notes	Vizier
1 [details]	05h 42m 17.48s85.57285°	-44° 17′ 48.3″-44.29674°	9.0′′ *	Reasonable	3 (U)	25.7′	1.0 ks
Mean XRT rate: 7 (+4, -3) ×10-3 ct s-1 Peak XRT rate: 7 (+4, -3) ×10-3 ct s-1 RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 8 (+5, -3) ×10-3 ct s-1 Peak XRT rate converted to PSPC: 8 (+5, -3) ×10-3 ct s-1 Mean XRT flux: 3.1 (+1.7, -1.3) ×10-13 erg cm-1s-1 Peak XRT flux: 3.1 (+1.7, -1.3) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum | Enhanced position
2 [details]	05h 41m 39.53s85.41471°	-44° 55′ 34.0″-44.92611°	8.1′′	Good	3 (U)	12.9′	972 s	This source may be affected by optical loading Matches SIMBAD source: HD 38172, 2.6″ away.
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: 0.01 ct s-1 (PSPC count-rate) Products: Light curve
3 [details]	05h 42m 02.42s85.51009°	-44° 16′ 35.9″-44.27665°	12.0′′	Poor	3 (U)	26.7′	1.0 ks
Mean XRT rate: 6.2 (+3.8, -2.7) ×10-3 ct s-1 Peak XRT rate: 6.2 (+3.8, -2.7) ×10-3 ct s-1 RASS PSPC 3-σ upper limit: 0.02 ct s-1 (PSPC count-rate) Products: Light curve | Spectrum
4 [details]	05h 42m 57.10s85.73792°	-44° 45′ 07.9″-44.75220°	5.6′′ *	Good	2 (O)	10.0′	1.0 ks	Matches known X-ray source: 1RXS J054257.9-444452 (from ROSAT/RASSFSC), 23.2682826255648″ away.
Mean XRT rate: 2.0 (+0.7, -0.6) ×10-2 ct s-1 Peak XRT rate: 2.0 (+0.7, -0.6) ×10-2 ct s-1 -3.20 σ above the catalogued flux from ROSAT/RASSFSC. RASS PSPC 3-σ upper limit: 0.0×100 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.0311 (+0.0107, -0.0088) ct s-1 Peak XRT rate converted to PSPC: 0.0311 (+0.0107, -0.0088) ×10-2 ct s-1 Mean XRT flux: 5.1 (+1.7, -1.4) ×10-13 erg cm-1s-1 Peak XRT flux: 5.1 (+1.7, -1.4) ×10-13 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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