Skip banner and navigation tools.

School of Physics & Astronomy

US Site | Italian Site | UK site

Home > GRB products > GRB 130518A

TILED_GRB00016

GRB

GRB 130518A: 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 4 fields have been scheduled for observations. Data are available and processed for 4 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.

• 20277 — 2.3 ks of cleaned data taken between 2013-05-18 22:09:22 and 2013-05-19 06:40:24
• 20278 — 2.8 ks of cleaned data taken between 2013-05-18 22:19:09 and 2013-05-19 06:36:25
• 20279 — 1.9 ks of cleaned data taken between 2013-05-18 22:28:55 and 2013-05-19 06:32:11
• 20280 — 1.2 ks of cleaned data taken between 2013-05-18 23:55:46 and 2013-05-19 06:27:47

Probable afterglow details

A source was found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Dist from LAT pos	Exposure	Notes	Vizier
1 [details]	23h 42m 40.23s355.66763°	+47° 27′ 53.9″47.46497°	2.2′′ *	Good	12.0′	2.4 ks	The source is brighter than the RASS limit.
Mean XRT rate: 4.8 (±0.5) ×10-2 ct s-1 Peak XRT rate: 6.7 (±1.1) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.054 (±0.005) ct s-1 Peak XRT rate converted to PSPC: 0.075 (±0.013) ct s-1 Mean XRT flux: 1.60 (±0.15) ×10-12 erg cm-1s-1 Peak XRT flux: 2.2 (±0.4) ×10-12 erg cm-1s-1 Products: Light curve | Spectrum | Enhanced position | Expected serendipitous sources: ~0.05 [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 7 sources have been found in the XRT data. 1 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Dist from LAT pos	Exposure	Notes	Vizier
1 [details]	23h 42m 40.23s355.66763°	+47° 27′ 53.9″47.46497°	2.2′′ *	Good	12.0′	2.4 ks	The source is brighter than the RASS limit.
Mean XRT rate: 4.8 (±0.5) ×10-2 ct s-1 Peak XRT rate: 6.7 (±1.1) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.054 (±0.005) ct s-1 Peak XRT rate converted to PSPC: 0.075 (±0.013) ct s-1 Mean XRT flux: 1.60 (±0.15) ×10-12 erg cm-1s-1 Peak XRT flux: 2.2 (±0.4) ×10-12 erg cm-1s-1 Products: Light curve | Spectrum | Enhanced position | Expected serendipitous sources: ~0.05 [What is this?]
2 [details]	23h 43m 22.95s355.84562°	+47° 37′ 49.8″47.63049°	2.5′′ *	Good	1.6′	3.2 ks	A catalogued X-ray source matches this source's position: (Show) '1RXS J234323.7+473801' is 16.5′′ away, err (3-σ)=40.1′′ (ROSAT/RASSFSC)
Mean XRT rate: 2.48 (±0.29) ×10-2 ct s-1 Peak XRT rate: 3.3 (±0.7) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.09 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.0237 (±0.0027) ct s-1 Peak XRT rate converted to PSPC: 0.032 (±0.007) ct s-1 Mean XRT flux: 9.8 (±1.1) ×10-13 erg cm-1s-1 Peak XRT flux: 1.31 (±0.29) ×10-12 erg cm-1s-1 Products: Light curve | Spectrum | Enhanced position | Expected serendipitous sources: ~0.1 [What is this?]
3 [details]	23h 44m 08.10s356.03374°	+47° 19′ 17.1″47.32142°	4.8′′	Good	21.2′	1.4 ks
Mean XRT rate: 1.5 (±0.3) ×10-2 ct s-1 Peak XRT rate: 1.5 (±0.4) ×10-2 ct s-1 RASS PSPC 3-σ upper limit: 0.05 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.0115 (±0.0024) ct s-1 Peak XRT rate converted to PSPC: 0.012 (±0.003) ct s-1 Mean XRT flux: 8.1 (±1.7) ×10-13 erg cm-1s-1 Peak XRT flux: 8.2 (±2.2) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~0.3 [What is this?]
4 [details]	23h 43m 30.18s355.87573°	+47° 43′ 12.8″47.72021°	5.8′′	Good	5.5′	4.2 ks
Mean XRT rate: 2.9 (±1.1) ×10-3 ct s-1 Peak XRT rate: 2.9 (±1.1) ×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: 1.6 (±0.6) ×10-3 ct s-1 Peak XRT rate converted to PSPC: 1.6 (±0.6) ×10-3 ct s-1 Mean XRT flux: 2.6 (±1.0) ×10-13 erg cm-1s-1 Peak XRT flux: 2.6 (±1.0) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~2.0 [What is this?]
5 [details]	23h 44m 20.97s356.08737°	+47° 49′ 03.3″47.81757°	6.1′′	Good	15.4′	3.8 ks
Mean XRT rate: 2.0 (±1.0) ×10-3 ct s-1 Peak XRT rate: 2.0 (±1.0) ×10-3 ct s-1 RASS PSPC 3-σ upper limit: 0.02 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 1.2 (±0.6) ×10-3 ct s-1 Peak XRT rate converted to PSPC: 1.2 (±0.6) ×10-3 ct s-1 Mean XRT flux: 1.5 (±0.7) ×10-13 erg cm-1s-1 Peak XRT flux: 1.5 (±0.7) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~1.0 [What is this?]
6 [details]	23h 42m 10.81s355.54503°	+47° 54′ 45.1″47.91253°	5.7′′	Good	19.5′	1.6 ks
Mean XRT rate: 6.7 (±2.3) ×10-3 ct s-1 Peak XRT rate: 6.7 (±2.3) ×10-3 ct s-1 RASS PSPC 3-σ upper limit: 0.05 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 2.9 (±1.0) ×10-3 ct s-1 Peak XRT rate converted to PSPC: 2.9 (±1.0) ×10-3 ct s-1 Mean XRT flux: 4.2 (±1.4) ×10-13 erg cm-1s-1 Peak XRT flux: 4.2 (±1.4) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~1.0 [What is this?]
7 [details]	23h 43m 56.75s355.98648°	+47° 54′ 47.1″47.91307°	5.8′′	Good	17.8′	1.8 ks
Mean XRT rate: 7.3 (±2.4) ×10-3 ct s-1 Peak XRT rate: 7.3 (±2.4) ×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: 2.8 (±0.9) ×10-3 ct s-1 Peak XRT rate converted to PSPC: 2.8 (±0.9) ×10-3 ct s-1 Mean XRT flux: 7.1 (±2.3) ×10-13 erg cm-1s-1 Peak XRT flux: 7.1 (±2.3) ×10-13 erg cm-1s-1 Products: Light curve | Spectrum | Expected serendipitous sources: ~0.9 [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

FITS image.

Exposure map

FITS exposure map.

UK Swift Science Data Centre
Last updated 2015 Jan 26 at 13:13:08 UT
Web page maintained by Phil Evans
E-mail: swift help
Please read our privacy notice.