Gamma-ray Burst 130719A

(All information courtesy of the instrument teams.)

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Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 19 Jul 13 05:49:26 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     562625,   Seg_Num: 0
GRB_RA:           89.039d {+05h 56m 09s} (J2000),
                  89.197d {+05h 56m 47s} (current),
                  88.456d {+05h 53m 49s} (1950)
GRB_DEC:         -11.585d {-11d 35' 03"} (J2000),
                 -11.583d {-11d 35' 00"} (current),
                 -11.591d {-11d 35' 25"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=2209 [image_cnts]
TRIGGER_DUR:     80.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        16492 TJD;   200 DOY;   13/07/19
GRB_TIME:        20869.19 SOD {05:47:49.19} UT
GRB_PHI:         -145.32 [deg]
GRB_THETA:        39.82 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    11.30 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +1 -100  +0 -72  +0 
SUN_POSTN:       118.77d {+07h 55m 04s}  +20.81d {+20d 48' 25"}
SUN_DIST:         43.52 [deg]   Sun_angle= 2.0 [hr] (West of Sun)
MOON_POSTN:      245.82d {+16h 23m 17s}  -19.42d {-19d 25' 29"}
MOON_DIST:       141.38 [deg]
MOON_ILLUM:      83 [%]
GAL_COORDS:      217.26,-17.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       88.85,-35.02 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 114.09,14.58 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 19 Jul 13 05:52:05 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     562625,   Seg_Num: 0
GRB_RA:           89.039d {+05h 56m 09s} (J2000),
                  89.197d {+05h 56m 47s} (current),
                  88.456d {+05h 53m 49s} (1950)
GRB_DEC:         -11.585d {-11d 35' 03"} (J2000),
                 -11.583d {-11d 35' 00"} (current),
                 -11.591d {-11d 35' 25"} (1950)
GRB_DATE:        16492 TJD;   200 DOY;   13/07/19
GRB_TIME:        20869.19 SOD {05:47:49.19} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -145.32 [deg]
GRB_THETA:        39.82 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     80.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    11.30 [sigma]
LC_URL:          sw00562625000msb.lc
SUN_POSTN:       118.77d {+07h 55m 04s}  +20.81d {+20d 48' 24"}
SUN_DIST:         43.52 [deg]   Sun_angle= 2.0 [hr] (West of Sun)
MOON_POSTN:      245.85d {+16h 23m 24s}  -19.43d {-19d 25' 37"}
MOON_DIST:       141.39 [deg]
MOON_ILLUM:      83 [%]
GAL_COORDS:      217.26,-17.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       88.85,-35.02 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Lightcurve.  
COMMENTS:           
COMMENTS:        The next comments were copied from the BAT_POS Notice:  
COMMENTS:        This is an image trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 114.09,14.58 [deg].

GCN Circular #15012
F. E. Marshall (NASA/GSFC), J. R. Cummings (NASA/UMBC), V. D'Elia (ASDC), C. Gronwall (PSU), P. T. O'Brien (U Leicester) and D. M. Palmer (LANL) report on behalf of the Swift Team:
At 05:47:49 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 130719A (trigger=562625). Swift could not slew to the burst due to a Sun constraint. The BAT on-board calculated location is RA, Dec 89.039, -11.585 which is
```
   RA(J2000) = 05h 56m 09s
   Dec(J2000) = -11d 35' 03"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve is dominated by variation from Vela X-1, which is also in the FOV, so nothing can be stated about the burst light curve for this image trigger at this time.
Due to the Sun constraint, XRT and UVOT will not be able to observe the burst location until July 26.
Burst Advocate for this burst is F. E. Marshall (marshall AT milkyway.gsfc.nasa.gov). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)
GCN Circular #15016
M. Stamatikos (OSU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC),E. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/GSFC/ORAU), C. B. Markwardt (GSFC), F. E. Marshall (NASA/GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), G. Sato (ISAS), J. Tueller (GSFC), T. N. Ukwatta (MSU) (i.e. the Swift-BAT team):
Using the data set from T-239 to T+963 sec from the recent telemetry downlink, we report further analysis of BAT GRB 130719A (trigger #562625) (Marshall, et al., GCN Circ. 15012). The BAT ground-calculated position is RA, Dec = 89.038, -11.591 deg which is
```
    RA(J2000)  =  05h 56m 09.2s
    Dec(J2000) = -11d 35' 29.0"
```
with an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment). The partial coding was 50%.
The mask-weighted light curve shows a single weak approximately FRED peak. T90 (15-350 keV) is 177.7 +- 20.5 sec (estimated error including systematics).
The time-averaged spectrum from T+6.2 to T+205.2 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.63 +- 0.17. The fluence in the 15-150 keV band is 2.3 +- 0.2 x 10^-06 erg/cm2. The 1-sec peak photon flux measured from T+82.68 sec in the 15-150 keV band is 0.6 +- 0.2 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/562625/BA/
GCN Circular #15030
A. Trotter, D. Reichart, A. LaCluyze, J. Haislip, T. Berger, M. Carroll, H. T. Cromartie, R. Egger, A. Foster, C. Foster, N. Frank, K. Ivarsen, D. James, M. Maples, J. Moore, M. Nysewander, E. Speckhard, P. Taylor, and J. A. Crain report
Skynet observed the Swift/BAT localization of GRB 130719A (Marshall et al., GCN 15012, Swift trigger #562625) with four 16" telescopes of the PROMPT array at CTIO, Chile. Starting at 2013-07-19, 19:17 UT and continuing until 09:20 UT (t=3.53-4.84h post-trigger), it took ~28 160-sec exposures in each of the BVRI bands. We did not detect a credible afterglow candidate within the 3 arcmin radius of the Swift/BAT error circle, which was centered on RA 05:56:09.4, Dec -11:35:04.
We stacked all the images in each band and obtained 3-sigma limiting magnitudes on any afterglow at t~4.2h:
```
Filter       B       V       R       I
Mag        >21.2   >20.6   >20.7   >20.3
```
Magnitudes are Vega magnitudes, calibrated to 3 USNO-B1/NOMAD stars in the field, and have not been corrected for the expected line-of-sight Milky Way dust extinction E(B-V)~0.7 (Schlegel et al. 1998).
No further Skynet observations are scheduled.
GCN Report 463.1
GCN_Report 463.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_463_1.pdf by F.E. Marshall at NASA/GSFC titled: "Swift Observations of GRB 130719A"

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Jochen Greiner, last update: 26-Apr-2014 [Disclaimer]