GRB140703A

This page lists all entries on GRB140703A in GRBweb

Summary Fermi GBM IPN Swift GCN 16503 GCN 16504 GCN 16505 GCN 16506 GCN 16507 GCN 16508 GCN 16509 GCN 16510 GCN 16511 GCN 16512 GCN 16513 GCN 16514 GCN 16515 GCN 16516 GCN 16536 GCN 16540 GCN 16543 GCN 16591

Summary table
Variable Value Source
GRB_name_Fermi GRB140703026
T0 0:37:07.190 UTC Fermi_GBM
ra 12.9957° Swift
decl 45.1019° Swift
pos_error 1.81e-04° Swift
T90 83.969 s Fermi_GBM
T90_error 2.996 s Fermi_GBM
T90_start 0:37:07.958 UTC Fermi_GBM
fluence 7.57e-06 erg/cm² Fermi_GBM
fluence_error 5.09e-08 erg/cm² Fermi_GBM
redshift 3.1400
T100 84.737 s
GBM_located False
mjd 56841.025777662035 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB140703026
trigger_name bn140703026
ra 12.9958°
decl 45.1017°
pos_error 2.83e+00°
datum 2014-07-03
t_trigger 0:37:07.190 UTC
T90 83.969 s
T90_error 2.996 s
T90_start 0:37:07.958 UTC
fluence 7.57e-06 erg/cm²
fluence_error 5.09e-08 erg/cm²
flux_1024 4.05e+00 erg/cm²/s
flux_1024_error 2.27e-01 erg/cm²/s
flux_1024_time 9.73e+00 erg/cm²/s
flux_64 5.59e+00 erg/cm²/s
flux_64_error 9.79e-01 erg/cm²/s
IPN table
GRB_name GRB140703A
ra 12.9917°
decl 45.1000°
pos_error 5.00e-02°
redshift 3.1400
Swift table
GRB_name GRB140703A
t_trigger 0:37:17 UTC
ra 12.9957°
decl 45.1019°
pos_error 1.81e-04°
T90 67.1 s
fluence 3.90e-06 erg/cm²
redshift 3.1400
GCN 16503 table
GRB_name GRB140703A
GCN_number 16503
Detection_method Swift Det
t_trigger 0:37:17 UTC
ra 12.9900°
decl 45.0950°
Circular_text TITLE: GCN CIRCULAR NUMBER: 16503 SUBJECT: GRB 140703A: Swift detection of a burst DATE: 14/07/03 00:52:07 GMT FROM: Jamie A. Kennea at PSU/Swift-XRT D. Kocevski (NASA/GSFC/ORAU), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (NASA/UMBC), J. A. Kennea (PSU), N. P. M. Kuin (UCL-MSSL), F. E. Marshall (NASA/GSFC), K. L. Page (U Leicester), J. L. Racusin (NASA/GSFC), M. H. Siegel (PSU) and T. N. Ukwatta (MSU) report on behalf of the Swift Team: At 00:37:17 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 140703A (trigger=603243). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 12.990, +45.095 which is RA(J2000) = 00h 51m 58s Dec(J2000) = +45d 05' 41" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a two-peak structure with a duration of about 90 sec. The peak count rate was ~1781 counts/sec (15-350 keV), at ~0 sec after the trigger. The XRT began observing the field at 00:39:09.8 UT, 112.8 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 12.9958, 45.1015 which is equivalent to: RA(J2000) = +00h 51m 58.99s Dec(J2000) = +45d 06' 05.4" with an uncertainty of 4.7 arcseconds (radius, 90% containment). This location is 27 arcseconds from the BAT onboard position, within the BAT error circle. No event data are yet available to determine the column density using X-ray spectroscopy. The initial flux in the 2.5 s image was 1.12e-08 erg cm^-2 s^-1 (0.2-10 keV). UVOT took a finding chart exposure of 116 seconds with the White filter starting 123 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers none of the XRT error circle. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle. The list of sources is typically complete to about 18 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.10. Burst Advocate for this burst is D. Kocevski (dankocevski AT gmail.com). 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 16504 table
GRB_name GRB140703A
GCN_number 16504
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16504 SUBJECT: GRB 140703A: BOOTES-2 and OSN optical observations DATE: 14/07/03 03:30:45 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia R. Cunniffe, A. Gonzalez-Rodriguez, V. Casanova, M. Jelinek, S. Jeong, O. Lara-Gil, S. R. Oates, R. Sanchez-Ramirez, J. C. Tello (IAA-CSIC Granada), P. Kubanek (IP-ASCR, Prague), J. Gorosabel (IAA-CSIC, UPV-EHU) and A. J. Castro-Tirado (IAA-CSIC, ISA-UMA), report: Following the detection of GRB 140703A by Swift (Kocevski et al., GCNC 16503), the 0.6m TELMA robotic telescope at the BOOTES-2 astronomical station Malaga (Spain), responded to the GRB location starting at 00:38:02 UT (i.e. 45s postburst, in the clear filter, 5s integrations). In the longer exposures (i'-band, 60s) starting at 00:47:30 (i.e. 10 min postburst), a faint optical source is barely detected in the images, at the outskirts of the XRT position, which is confirmed by the 1.5m OSN images at Sierra Nevada Observatory starting at 00:54 UT (I-band), with a magnitude of about 20, which does not seem to be present in the DSS-2. The preliminary position (+/- 1") is: RA(J2000) = 00 51 59.05, Dec (J2000) = +45 06 06. The source is detected in all optical filters. Additional observations (imaging and spectroscopy) are ongoing. [GCN OPS NOTE(03jul14): Per author's request, the starting time was changed from 00:30:02 to 00:38:02 (ie 8 min later), and the characterset represenation for the i'-band specification was changed to plain-text.]
GCN 16505 table
GRB_name GRB140703A
GCN_number 16505
Detection_method Optical
redshift 3.1400
Circular_text TITLE: GCN CIRCULAR NUMBER: 16505 SUBJECT: GRB140703A: 10.4m GTC redshift DATE: 14/07/03 07:04:51 GMT FROM: Javier Gorosabel at IAA-CSIC A. J. Castro-Tirado (IAA-CSIC), R. Cunniffe (IAA-CSIC), R. Sanchez-Ramirez (IAA-CSIC), J. Gorosabel (IAA-CSIC/UPV-EHU), M. Jelinek (IAA-CSIC), S.R. Oates (IAA-CSIC), S. Jeong (IAA-CSIC), J. R. Tello (IAA-CSIC), S. Pandey (ARIES), G. Gomez-Velarde (GTC, IAC), A. Perez (GTC), report on behalf of a larget collaboration: "We obtained 2x450s optical spectra of GRB 140703A (Kocevski et al. GCN16503) optical afterglow (Cunniffe et al. GCN16504) with the 10.4m GTC(+OSIRIS) with a wavelength coverage of 4000--9500 AA based on R1000R and R1000B grisms. The combined spectrum shows a deep Lyman-alpha absorption and many metallic absorption lines (AlI, CII, CIV,AlIII..). Using archival calibration lamps we infer a common redshift of z=3.14." [GCN OPS NOTE(03jul14): Per author's request, G.G-V & A.P. were added to the author list.]
GCN 16506 table
GRB_name GRB140703A
GCN_number 16506
Detection_method Swift-XRT Det
ra 12.9957°
decl 45.1018°
Circular_text TITLE: GCN CIRCULAR NUMBER: 16506 SUBJECT: GRB 140703A: Enhanced Swift-XRT position DATE: 14/07/03 09:49:00 GMT FROM: Phil Evans at U of Leicester M.R. Goad, J.P. Osborne, A.P. Beardmore and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team. Using 2188 s of XRT Photon Counting mode data and 5 UVOT images for GRB 140703A, we find an astrometrically corrected X-ray position (using the XRT-UVOT alignment and matching UVOT field sources to the USNO-B1 catalogue): RA, Dec = 12.99574, +45.10185 which is equivalent to: RA (J2000): 00h 51m 58.98s Dec (J2000): +45d 06' 06.7" with an uncertainty of 1.7 arcsec (radius, 90% confidence). This position may be improved as more data are received. The latest position can be viewed at http://www.swift.ac.uk/xrt_positions. Position enhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans et al. (2009, MNRAS, 397, 1177). This circular was automatically generated, and is an official product of the Swift-XRT team.
GCN 16507 table
GRB_name GRB140703A
GCN_number 16507
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16507 SUBJECT: GRB 140703A: MASTER optical observations DATE: 14/07/03 10:11:14 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, M.Pruzhinskaya, P.Balanutsa, V.Kornilov, D.Kuvshinov, N.Tyurina, A.Kuznetsov Lomonosov Moscow State University, Sternberg Astronomical Institute A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov, A. Gabovich Blagoveschensk Educational State University, Blagoveschensk K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University V.Krushinski, I.Zalozhnih, A. Popov Ural Federal University, Kourovka Hugo Levato and Carlos Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) Claudio Mallamaci, Carlos Lopez and Federico Podest Observatorio Astronomico Felix Aguilar (OAFA) MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in Kislovodsk was pointed to the GRB 140703A (Kocevski et. al., GCN 16503) 2 sec after notice time and 45 sec after trigger time at 2014-07-03 00:38:03 UT on morning sky in two polarizations. We have 10 good frames with an increasing exposition from 10 to 70 seconds that of that as there overlighting came. On our first (10s exposure) set we haven't see optical transient (Cunniffe et. al., GCN 16504; Castro-Tirado et. al., GCN 16505) on our single and coadd image. Pro.type T-T_trig T_start Exp.time Limit Filt. Tube. (mean) (UT) Alert 51 00:38:03 10 15.9 P- EAST Alert 51 00:38:03 10 15.7 P| WEST Coadd 77 00:38:03 40 16.8 P- EAST Coadd 77 00:38:03 40 16.5 P| WEST Coadd 169 00:38:03 180 16.7 P| WEST Coadd 244 00:38:03 310 17.5 P- EAST Coadd 244 00:38:03 570 18.0 White WEST+EAST Alert 72 00:38:24 10 15.9 P- EAST Alert 72 00:38:24 10 15.8 P| WEST Alert 98 00:38:45 20 16.0 P| WEST Alert 98 00:38:45 20 16.2 P- EAST Alert 129 00:39:16 20 15.7 P| WEST Alert 129 00:39:16 20 16.2 P- EAST Coadd 174 00:39:16 90 17.1 P- EAST Coadd 174 00:39:16 90 16.4 P| WEST Alert 164 00:39:47 30 16.4 P- EAST Alert 164 00:39:47 30 15.7 P| WEST Alert 210 00:40:27 40 15.7 P| WEST Alert 210 00:40:27 40 16.5 P- EAST Alert 266 00:41:18 50 15.5 P| WEST Alert 266 00:41:18 50 16.4 P- EAST Coadd 342 00:41:18 80 16.5 P- EAST The message may be cited. [GCN OPS NOTE(03jul14): As per GCN Circ 16508, the Subject-line was changed from 140629A to 140703A.]
GCN 16508 table
GRB_name GRB140703A
GCN_number 16508
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16508 SUBJECT: Correction to GCN 16507: GRB 140703A! DATE: 14/07/03 12:06:21 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs The correct sublject of the GCN 16507 is "GRB 140703A: MASTER optical observations" I am sorry, Vladimir Lipunov The message may be cited.
GCN 16509 table
GRB_name GRB140703A
GCN_number 16509
Detection_method Swift-BAT Det
ra 13.0100°
decl 45.1020°
Circular_text TITLE: GCN CIRCULAR NUMBER: 16509 SUBJECT: GRB 140703A: Swift-BAT refined analysis DATE: 14/07/03 14:48:12 GMT FROM: Scott Barthelmy at NASA/GSFC H. A. Krimm (GSFC/USRA), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), D. Kocevski (NASA/GSFC/ORAU), A. Y. Lien (NASA/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), 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 recent telemetry downlinks, we report further analysis of BAT GRB 140703A (trigger #603243) (Kocevski, et al., GCN Circ. 16503). The BAT ground-calculated position is RA, Dec = 13.010, 45.102 deg, which is RA(J2000) = 00h 52m 02.4s Dec(J2000) = +45d 06' 07.5" with an uncertainty of 1.6 arcmin, (radius, sys+stat, 90% containment). The partial coding was 14%. The mask-weighted light curve shows several peaks starting at ~T-70 sec, peakings at ~T-50, ~T+2 & ~T+70 sec, and ending at ~T+140 sec. T90 (15-350 keV) is 67.1 +- 67.9 sec (estimated error including systematics). The time-averaged spectrum from T-2.5 to T+134.8 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.74 +- 0.13. The fluence in the 15-150 keV band is 3.9 +- 0.3 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+0.36 sec in the 15-150 keV band is 2.8 +- 0.6 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/603243/BA/
GCN 16510 table
GRB_name GRB140703A
GCN_number 16510
Detection_method Swift-XRT Other
redshift 3.1400
Circular_text TITLE: GCN CIRCULAR NUMBER: 16510 SUBJECT: GRB 140703A: Swift-XRT refined Analysis DATE: 14/07/03 14:52:03 GMT FROM: Phil Evans at U of Leicester K.L. Page (U. Leicester), C. Pagani (U. Leicester), A. Melandri (INAF-OAB), B. Sbarufatti (INAF-OAB/PSU), P. D'Avanzo (INAF-OAB), M.C. Stroh (PSU), D.N. Burrows (PSU), J.A. Kennea (PSU), A.P. Beardmore (U. Leicester) and D. Kocevski report on behalf of the Swift-XRT team: We have analysed 7.5 ks of XRT data for GRB 140703A (Kocevski et al. GCN Circ. 16503), from 104 s to 39.2 ks after the BAT trigger. The data comprise 126 s in Windowed Timing (WT) mode (the first 7 s were taken while Swift was slewing) with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Goad et al. (GCN Circ. 16506). The light curve can be modelled with a series of power-law decays. The initial decay index is alpha=0.1 (+1.5, -1.6). At T+120 s the decay steepens to an alpha of 6.8 (+0.4, -0.3). The light curve breaks again at T+158 s to a decay with alpha=5.1 (+/-0.4), and again at T+319 s s to alpha=0.1 (+0.6, -0.4), before a final break at T+7413 s s after which the decay index is 1.56 (+0.14, -0.13). A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 2.84 (+0.08, -0.07). The best-fitting absorption column is 5.2 (+/-0.6) x 10^22 cm^-2, at a redshift of 3.14, in addition to the Galactic value of 1.3 x 10^21 cm^-2 (Willingale et al. 2013). The PC mode spectrum has a photon index of 1.82 (+/-0.09) and a best-fitting absorption column of 5.4 (+8.0, -5.4) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.8 x 10^-11 (4.6 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Galactic foreground: 1.3 x 10^21 cm^-2 Intrinsic column: 5.4 (+8.0, -5.4) x 10^21 cm^-2 at z=3.14 Photon index: 1.82 (+/-0.09) If the light curve continues to decay with a power-law decay index of 1.56, the count rate at T+24 hours will be 0.022 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 8.4 x 10^-13 (1.0 x 10^-12) erg cm^-2 s^-1. The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00603243. This circular is an official product of the Swift-XRT team.
GCN 16511 table
GRB_name GRB140703A
GCN_number 16511
Detection_method Optical
ra 12.9959°
decl 45.1017°
Circular_text TITLE: GCN CIRCULAR NUMBER: 16511 SUBJECT: GRB 140703A: Monte Agliale Observatory optical observations DATE: 14/07/03 15:29:33 GMT FROM: Fabrizio Ciabattari at Monte Agliale Obs F. Ciabattari, S. Donati, E. Mazzoni, G. Petroni and M. Rossi (Monte Agliale Observatory, Borgo a Mozzano, Italy) report: We observed the field of GRB 140703A (Kocevski et al., GCNC 16503) with the automatic 0.5m Newtonian telescope + FLI ProLine PL4710 camera at Monte Agliale Observatory (Borgo a Mozzano, Italy, MPC code 159). The observations started at 2014-07-03 01:57:43 UT (~80 minutes after the trigger) and we co-added 20 unfiltered CCD exposures of 20 seconds each. We detect a new source of mag. R = 19.8 +/-0.3 (USNO-B1 catalogue) at the following position: R.A.(J2000) = 00h 51m 59.01s Dec.(J2000) = +45d 06' 06.1" FITS files are available on request from fabciaba@alice.it. The message may be cited.
GCN 16512 table
GRB_name GRB140703A
GCN_number 16512
Detection_method Fermi GBM Det
t_trigger 0:37:07.190 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 16512 SUBJECT: GRB 140703A: Fermi GBM detection DATE: 14/07/03 16:21:16 GMT FROM: Peter Jenke at MSFC P. Jenke (UAH) reports on behalf of the Fermi GBM Team: "At 00:37:07.19 UT on July 3 2014, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 140603A (trigger 426040630/140703026), which was also detected by Swift (D. Kocevski et al. 2014, GCN 16503). The GBM on-ground location, using the Fermi GBM trigger data, is consistent with the Swift/XRT location and the TELMA robotic telescope location (R. Cunniffe et al. 2014 GCN16504). The angle of the burst direction to the Fermi LAT boresight is 16 degrees. The GBM light curve consists of one main FRED-like peak near T0 and a late smaller peak at ~T0+70s with a duration (T90) of about 84s (50-300 keV). The time-averaged spectrum from T0-4s to T0+31s is well fit by a power law function with an exponential high-energy cutoff. The power law index is -1.10 +/- 0.06 and the cutoff energy, parameterized as Epeak, is 177 +/- 14 keV. The event fluence (10-1000 keV) in this time interval is (7.4 +/- 0.4)E-07 ergs/cm^2. The 1.0-sec peak photon flux measured starting from T0+9.7s in the 10-1000 keV band is 4.1 +/- 0.2 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN 16513 table
GRB_name GRB140703A
GCN_number 16513
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 16513 SUBJECT: GRB 140703A: RATIR Optical and NIR Observations DATE: 14/07/03 16:46:08 GMT FROM: Nat Butler at Az State U Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), Chris Klein (UCB), Ori Fox (UCB), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (ORAU/GSFC), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), José A. de Diego (UNAM), Leonid Georgiev (UNAM), Jesús González (UNAM), Carlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC), and Harvey Moseley (GSFC) report: We observed the field of GRB 140703A (Kocevski, et al., GCN 16503) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astronómico Nacional on Sierra San Pedro Mártir from 2014/07 3.43 to 2014/07 3.47 UTC (9.74 to 10.68 hours after the BAT trigger), obtaining a total of 0.71 hours exposure in the r and i bands and 0.29 hours exposure in the Z, Y, J, and H bands. For a source within the Swift-XRT error circle, in comparison with the SDSS DR9 and 2MASS, we obtain the following detections: r 20.32 +/- 0.03 i 19.72 +/- 0.03 Z 18.53 +/- 0.05 Y 18.31 +/- 0.05 J 19.60 +/- 0.17 H 18.98 +/- 0.09 These magnitudes are in the AB system and are not corrected for Galactic extinction in the direction of the GRB. We thank the staff of the Observatorio Astronómico Nacional in San Pedro Mártir.
GCN 16514 table
GRB_name GRB140703A
GCN_number 16514
Detection_method correction
Circular_text TITLE: GCN CIRCULAR NUMBER: 16514 SUBJECT: GRB 140703A: P60 observations of a red, slowly-fading afterglow DATE: 14/07/03 16:51:02 GMT FROM: Daniel Perley at Caltech D. A. Perley (Caltech) and S. B. Cenko (NASA/GSFC) report: We observed the afterglow of GRB 140703A (Kocevski et al., GCN 16503) with the Palomar 60-inch (P60) robotic telescope. We acquired 3x180s in each of the r, i, and z filters between 08:40:37 and 09:11:02 on 2014-07-03 UT. We measure the following magnitudes: r = 20.03 +/- 0.02 t_mid = 0.3462 days i = 19.46 +/- 0.02 t_mid = 0.3380 days z = 18.99 +/- 0.05 t_mid = 0.3533 days This indicates very little fading since the observations of Cunniffe et al. (GCN 16504) and Ciabattari et al. (GCN 16511). However, the spectroscopy of Castro-Tirado et al. (GCN 16505) confirms this source is the GRB afterglow. We note that the afterglow color is fairly red (beta~2.2 after correction for foreground extinction), possibly indicating significant dust obscuration in the host frame.
GCN 16515 table
GRB_name GRB140703A
GCN_number 16515
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16515 SUBJECT: GRB 140703A: CARMA 3mm detection DATE: 14/07/03 19:03:28 GMT FROM: Daniel Perley at Caltech D. A. Perley (Caltech) reports on behalf of a larger collaboration: We observed the position of GRB 140703A (Kocevski et al., GCN 16503) with the Combined Array for Research in Millimeter Astronomy starting at 2013-07-03 16:39:55 UT (0.668 days post-GRB) at a mean frequency of ~93 GHz; the observation is still ongoing. We detect a strong source in the existing data set at the location of the X-ray and optical afterglows (Goad et al., GCN 16506; Castro-Tirado et al., GCN 16504) with a flux of approximately 2 mJy. We thank Nikolaus Volgenau, observers K. Jameson and E. Grand, and the CARMA staff for executing the observation.
GCN 16516 table
GRB_name GRB140703A
GCN_number 16516
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16516 SUBJECT: GRB 140703A: VLA K-band detection DATE: 14/07/04 02:51:36 GMT FROM: Alessandra Corsi at GWU A. Corsi (GWU / TTU) reports on behalf of a larger collaboration: We imaged the position of GRB 140703A (Kocevski et al., GCN 16503) with the Karl G. Jansky Very Large Array (VLA) in K-band, starting at about 8.5 hours after the burst. A provisional reduction shows a source consistent with the location of the GRB X-ray and optical afterglows (Goad et al., GCN 16506; Cunniffe et al., GCN 16504). At this time, we estimate a preliminary flux of about 280 uJy at 19 GHz. Further observations are planned.
GCN 16536 table
GRB_name GRB140703A
GCN_number 16536
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16536 SUBJECT: GRB 140703A: AAO optical observations DATE: 14/07/07 15:24:58 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), R. Inasaridze (AAO), O. Kvaratskhelia (AAO), V. Ayvazian (AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the Swift GRB 140703A (Kocevski et al., GCN 16503) with AS-32 (0.7m) telescope of Abastumani Observatory starting on July, 07 (UT) 23:27:06. We obtained several unfiltered frames under exellent weather with exposure of each frame of 120 s. The optical afterglow (Cunniffe et al. GCN16504) is well detected on the stacked image. Details of a photometry of the pi-redsifted GRB 140703A (Castro-Tirado et al., GCN 16505) are following: date UT start t-T0 Filter Exp. OT err (mid, days) (s) 2014-07-03 23:27:06 0.97235 None 23*120 21.27 +/- 0.08 The photometry is based on following SDSS stars and gri -> R transformation (Lupton, 2005) SDSS id R_Lupton J005158.97+450627.1 17.374 ± 0.011 J005153.14+450619.0 16.257 ± 0.011 J005202.70+450621.8 18.216 ± 0.014 Finding chart can be found at http://grb.rssi.ru/GRB140703A/GRB140703A_AAO_fc.png
GCN 16540 table
GRB_name GRB140703A
GCN_number 16540
Detection_method Swift-UVOT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 16540 SUBJECT: GRB 140703A: Swift/UVOT Upper Limits DATE: 14/07/07 23:45:44 GMT FROM: Mike Siegel at PSU/Swift MOC M. H. Siegel (PSU) and D. Kocevski (NASA/GSFC/ORAU) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 140703A 123 s after the BAT trigger (Kocevski et al., GCN Circ. 16503). No optical afterglow consistent with the XRT position (Kocevski et al. GCN Circ. 16503) is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first finding chart (FC) exposure and subsequent exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag white_FC 123 239 114 >19.7 white 123 5830 507 >20.5 v 4606 4806 197 >19.3 b 3991 5626 393 >20.2 u 3785 5420 393 >20.1 w1 5016 5216 197 >19.7 m2 4811 5010 197 >20.2 w2 4401 6002 359 >20.7 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.10 in the direction of the burst (Schlegel et al. 1998).
GCN 16543 table
GRB_name GRB140703A
GCN_number 16543
Detection_method AMI
Circular_text TITLE: GCN CIRCULAR NUMBER: 16543 SUBJECT: GRB 140703A: AMI 15 GHz detection DATE: 14/07/08 09:44:15 GMT FROM: Gemma Anderson at U of Oxford G. E. Anderson, R. P. Fender, T. D. Staley (University of Oxford), A. J. van der Horst (University of Amsterdam) and A. Rowlinson (CASS) We observed the position of GRB 140703A (GCN 16503) at 15 GHz with the Arcminute Microkelvin Imager (AMI-LA) starting on 2014 July 3.03 to 3.12 UT and July 4.22 to 4.38 UT, corresponding to <12 minutes and 1.19 days post-burst. No radio counterpart was detected during our first observation with a 3-sigma upper limit of 0.18 mJy. However, the radio counterpart (GCN 16515 and 16516) was detected during our second observation with a preliminary flux of 0.25 +/- 0.05 mJy. Further AMI monitoring is planned. We thank the AMI staff for scheduling these observations.
GCN 16591 table
GRB_name GRB140703A
GCN_number 16591
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 16591 SUBJECT: Radio upper limits on the GRB 140703A with the GMRT DATE: 14/07/15 08:41:55 GMT FROM: Poonam Chandra at TIFR A. J. Nayana (NCRA-TIFR) and Poonam Chandra (NCRA-TIFR) reports: We carried out Giant Metrewave Radio Telescope (GMRT) observations of GRB 140703A (GCN 16503) in the 1390 MHz band on 2013 July 10.12 UT and 12.91 UT, respectively. We do not detect the radio afterglow of the GRB in this frequency. The 3-sigma upper limit at the two epochs are 174 and 177 uJy, respectively. The map resolutions of the two images are 2.5"x2.0" and 3.1"x2.1", respectively. We thank GMRT staff for making these observations possible.