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Home > GRB products > GRB 190305A

TILED_GRB00077

NEWGRB

77

/xrt_products

GRB 190305A: Swift observation summary

Source 1 has been manually confirmed as the GRB afterglow; data for this object are now available through the main GRB results area for this GRB.

About tiled field analysis.

So far 6 fields have been scheduled for observations. Data are available and processed for 8 of these. The list gives the exposure time used in source detection. If any individual sources were selected for follow-up observations, the source detection is not repeated for the follow up observations and the table below is not updated.

• 20869 — 639 s of cleaned data taken between 2019-03-05 21:56:52 and 2019-03-06 00:14:03
• 20870 — 503 s of cleaned data taken between 2019-03-05 22:03:05 and 2019-03-05 23:59:49
• 20871 — 619 s of cleaned data taken between 2019-03-05 22:09:14 and 2019-03-06 00:08:32
• 20872 — 666 s of cleaned data taken between 2019-03-05 22:15:23 and 2019-03-05 23:56:37
• 20873 — 666 s of cleaned data taken between 2019-03-05 22:21:27 and 2019-03-05 23:50:33
• 20874 — 666 s of cleaned data taken between 2019-03-05 22:27:25 and 2019-03-05 23:38:09
• 20875 — 664 s of cleaned data taken between 2019-03-05 22:33:18 and 2019-03-06 01:10:36
• 20876 — 1.4 ks of cleaned data taken between 2019-03-07 04:29:39 and 2019-03-07 04:53:36

An additional 1 field has also been used for follow up observations. These data are not searched for sources, but are used to update the light curves etc of any sources already found.

Probable afterglow details

A source was found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Dist from AGILE pos	Exposure	Notes	Vizier
1 [details]	00h 46m 30.37s11.62654°	-50° 20′ 55.3″-50.34870°	2.2′′	Good	17.8′	3.5 ks	The source is fading with 4.6-σ significance.
Mean XRT rate: 3.3 (±0.3) ×10-2 ct s-1 Peak XRT rate: 0.102 (±0.019) ct s-1 RASS PSPC 3-σ upper limit: 0.08 ct s-1 (XRT equiv count-rate) Mean XRT flux: 1.63 (±0.17) ×10-12 erg cm-1s-1 Peak XRT flux: 5.0 (±1.0) ×10-12 erg cm-1s-1 Products: Light curve | Spectrum | Enhanced position Expected serendipitous sources: ~0.2 [What is this?]

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the 1SXPS documentation.
^* The position was enhanced using astrometry derived from the Swift UVOT.
^† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.

Find an upper limit.

Sources found so far

So far 6 sources have been found in the XRT data. 2 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Dist from AGILE pos	Exposure	Notes	Vizier
1 [details]	00h 46m 30.37s11.62654°	-50° 20′ 55.3″-50.34870°	2.2′′	Good	17.8′	3.5 ks	The source is fading with 4.6-σ significance.
Mean XRT rate: 3.3 (±0.3) ×10-2 ct s-1 Peak XRT rate: 0.102 (±0.019) ct s-1 RASS PSPC 3-σ upper limit: 0.08 ct s-1 (XRT equiv count-rate) Mean XRT flux: 1.63 (±0.17) ×10-12 erg cm-1s-1 Peak XRT flux: 5.0 (±1.0) ×10-12 erg cm-1s-1 Products: Light curve | Spectrum | Enhanced position Expected serendipitous sources: ~0.2 [What is this?]
2 [details]	00h 42m 04.32s10.51798°	-50° 06′ 20.9″-50.10582°	6.9′′	Good	31.3′	666 s
Mean XRT rate: 1.1 (+0.7, -0.5) ×10-2 ct s-1 Peak XRT rate: 1.1 (+0.7, -0.5) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.03 ct s-1 (XRT equiv count-rate) Products: Light curve | Spectrum Expected serendipitous sources: ~0.7 [What is this?]
3 [details]	00h 46m 03.47s11.51444°	-49° 59′ 04.2″-49.98450°	6.1′′	Good	10.8′	1.3 ks	Matches SIMBAD source: LEDA 471163, 4.1″ away.
Mean XRT rate: 1.7 (+0.6, -0.5) ×10-2 ct s-1 Peak XRT rate: 1.7 (+0.6, -0.5) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.10 ct s-1 (XRT equiv count-rate) Mean XRT flux: 1.07 (+0.34, -0.28) ×10-12 erg cm-1s-1 Peak XRT flux: 1.07 (+0.34, -0.28) ×10-12 erg cm-1s-1 Products: Light curve | Spectrum Expected serendipitous sources: ~0.4 [What is this?]
4 [details]	00h 43m 25.92s10.85801°	-50° 11′ 05.2″-50.18478°	7.7′′	Good	18.6′	666 s	Matches SIMBAD source: [A81] 004106-5029B, 1.5″ away.
Mean XRT rate: 2.1 (+0.8, -0.7) ×10-2 ct s-1 Peak XRT rate: 2.1 (+0.8, -0.7) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 4.2×10-3 ct s-1 (XRT equiv count-rate) Mean XRT flux: 7.6 (+3.1, -2.5) ×10-12 erg cm-1s-1 Peak XRT flux: 7.6 (+3.1, -2.5) ×10-12 erg cm-1s-1 Products: Light curve | Spectrum Expected serendipitous sources: ~0.3 [What is this?]
5 [details]	00h 44m 45.91s11.19131°	-49° 59′ 58.4″-49.99955°	8.3′′	Poor	9.0′	985 s
Mean XRT rate: 5.6 (+4.0, -2.7) ×10-3 ct s-1 Peak XRT rate: 5.6 (+4.0, -2.7) ×10-3 ct s-1 RASS PSPC 3-σ upper limit: 0.04 ct s-1 (XRT equiv count-rate) Products: Light curve Expected serendipitous sources: ~0.4 [What is this?]
6 [details]	00h 42m 56.04s10.73352°	-49° 56′ 47.2″-49.94646°	18.9′′	Poor	25.2′	666 s
Mean XRT rate: 10 (+6, -4) ×10-3 ct s-1 Peak XRT rate: 10 (+6, -4) ×10-3 ct s-1 RASS PSPC 3-σ upper limit: 0.03 ct s-1 (XRT equiv count-rate) Products: Light curve Expected serendipitous sources: ~0.5 [What is this?]

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the 1SXPS documentation.
^* The position was enhanced using astrometry derived from the Swift UVOT.
^† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.

Image

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FITS image.

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Exposure map

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FITS exposure map.