GRB140709B

This page lists all entries on GRB140709B in GRBweb

Summary Fermi GBM IPN Swift GCN 16551 GCN 16552 GCN 16556 GCN 16557 GCN 16558 GCN 16560 GCN 16561 GCN 16562 GCN 16571 GCN 16622 GCN 16651

Summary table
Variable Value Source
GRB_name_Fermi GRB140709637
T0 15:15:41.525 UTC Fermi_GBM
ra 146.0550° Swift
decl 63.5296° Swift
pos_error 1.94e-04° Swift
T90 156.416 s Fermi_GBM
T90_error 7.94 s Fermi_GBM
T90_start 15:15:41.525 UTC Fermi_GBM
fluence 7.36e-06 erg/cm² Fermi_GBM
fluence_error 6.34e-08 erg/cm² Fermi_GBM
T100 158.475 s
GBM_located False
mjd 56847.635897280095 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB140709637
trigger_name bn140709637
ra 146.0708°
decl 63.5050°
pos_error 1.04e+01°
datum 2014-07-09
t_trigger 15:17:52.853 UTC
T90 156.416 s
T90_error 7.94 s
T90_start 15:15:41.525 UTC
fluence 7.36e-06 erg/cm²
fluence_error 6.34e-08 erg/cm²
flux_1024 2.12e+00 erg/cm²/s
flux_1024_error 1.83e-01 erg/cm²/s
flux_1024_time -8.96e-01 erg/cm²/s
flux_64 3.22e+00 erg/cm²/s
flux_64_error 9.21e-01 erg/cm²/s
IPN table
GRB_name GRB140709B
ra 146.0708°
decl 63.5000°
pos_error 5.00e-02°
Swift table
GRB_name GRB140709B
t_trigger 15:15:45 UTC
ra 146.0550°
decl 63.5296°
pos_error 1.94e-04°
T90 155.0 s
fluence 4.20e-06 erg/cm²
GCN 16551 table
GRB_name GRB140709B
GCN_number 16551
Detection_method Swift Det
t_trigger 15:15:45 UTC
ra 146.0710°
decl 63.5050°
Circular_text TITLE: GCN CIRCULAR NUMBER: 16551 SUBJECT: GRB 140709B: Swift detection of a burst DATE: 14/07/09 15:30:15 GMT FROM: Jamie A. Kennea at PSU/Swift-XRT C. A. Swenson (PSU), W. H. Baumgartner (GSFC/UMBC), D. N. Burrows (PSU), S. B. Cenko (GSFC), M. M. Chester (PSU), J. R. Cummings (NASA/UMBC), P. A. Evans (U Leicester), N. Gehrels (NASA/GSFC), J. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA), V. Mangano (PSU), F. E. Marshall (NASA/GSFC), K. L. Page (U Leicester), D. M. Palmer (LANL) and M. H. Siegel (PSU) report on behalf of the Swift Team: At 15:15:45 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 140709B (trigger=603866). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 146.071, +63.505 which is RA(J2000) = 09h 44m 17s Dec(J2000) = +63d 30' 20" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a multi-peaked structure with a duration of about 150 sec. The peak count rate was ~1500 counts/sec (15-350 keV), at ~20 sec after the trigger. The XRT began observing the field at 15:17:15.9 UT, 91.0 seconds after the BAT trigger. Using promptly downlinked data we find a bright, uncatalogued X-ray source located at RA, Dec 146.05394, 63.53040 which is equivalent to: RA(J2000) = 09h 44m 12.95s Dec(J2000) = +63d 31' 49.4" with an uncertainty of 3.9 arcseconds (radius, 90% containment). This location is 95 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at http://www.swift.ac.uk/sper. No spectrum from the promptly downlinked event data is yet available to determine the column density. The initial flux in the 2.5 s image was 3.60e-09 erg cm^-2 s^-1 (0.2-10 keV). UVOT took a finding chart exposure of 250 seconds with the U filter starting 96 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 100% of the XRT error circle. The typical 3-sigma upper limit has been about 19.2 mag. 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 18.0 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.04. Burst Advocate for this burst is C. A. Swenson (cswenson AT astro.psu.edu). 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 16552 table
GRB_name GRB140709B
GCN_number 16552
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16552 SUBJECT: GRB 140709B: MASTER optical observation DATE: 14/07/09 16:04:23 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University E. Gorbovskoy, V. Lipunov, M.Pruzhinskaya, V.Kornilov, D.Kuvshinov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.V.Chazov, D.Denisenko, Lomonosov Moscow State University, Sternberg Astronomical Institute V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov, A.Gabovich Blagoveschensk Educational State University, Blagoveschensk V.Krushinski, I.Zalozhnih, A. Popov Ural Federal University, Kourovka A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory 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 Tunka was pointed to the GRB140709B 40 sec after Notice time and 94 sec after trigger time at 2014-07-09 15:17:19 UT (Swenson et al., GCN 16551). On our first (20s exposure) set we haven't found optical transient within SWIFT BAT error-box. The 5-sigma upper limit has been about 17.1mag We have number images with out OT brighter 18.2 at 94s < T - T_trigger < 289s. The message may be cited.
GCN 16556 table
GRB_name GRB140709B
GCN_number 16556
Detection_method Swift-XRT Det
ra 146.0542°
decl 63.5293°
Circular_text TITLE: GCN CIRCULAR NUMBER: 16556 SUBJECT: GRB 140709B: Enhanced Swift-XRT position DATE: 14/07/09 21:16:08 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 787 s of XRT Photon Counting mode data and 1 UVOT images for GRB 140709B, 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 = 146.05423, +63.52934 which is equivalent to: RA (J2000): 09h 44m 13.02s Dec (J2000): +63d 31' 45.6" with an uncertainty of 2.1 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 16557 table
GRB_name GRB140709B
GCN_number 16557
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16557 SUBJECT: GRB 140709B: OSN optical limit DATE: 14/07/09 22:47:34 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia A. Sota (IAA-CSIC), J. Gorosabel (IAA-CSIC, UPV-EHU) and A. J. Castro-Tirado (IAA-CSIC, ISA-UMA), on behalf of a larger collaboration, report: Following the detection of GRB 140709B by Swift (Swenson et al. GCNC 16551), we have taken I-band frames with the 1.5m OSN telescope at Observatorio de Sierra Nevada (Granada, Spain) starting at 20:45 UT (5.5 h post burst) at high airmass. Within the enhanced XRT position (Goad et al. GCNC 16556) we find no credible counterpart down to the DSS-2 limiting magnitude when all the images are co-added (10 x 150s). Near-infrared imaging is encouraged.
GCN 16558 table
GRB_name GRB140709B
GCN_number 16558
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16558 SUBJECT: GRB 140709B: Khureltogot optical upper limit DATE: 14/07/09 22:59:55 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), S. Schmalz (AIP), N. Tungalag (Research Centre of Astronomy and Geophysics MAS), I.Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of GRB 140709B (Swenson et al., GCN 16551) with ORI-40 telescope of Khureltogot observatory starting on Jul., 09 (UT) 15:31:51. In the first unfiltered images of 60 s exposure we do not detect any object in the enhanced XRT error circle (Goad et al., GCN 16556) down to 17.7m in each separate image. The photometry is based on nearby USNO-B1.0 stars.
GCN 16560 table
GRB_name GRB140709B
GCN_number 16560
Detection_method Swift-BAT Det
ra 146.0400°
decl 63.5360°
Circular_text TITLE: GCN CIRCULAR NUMBER: 16560 SUBJECT: GRB 140709B: Swift-BAT refined analysis DATE: 14/07/10 02:19:39 GMT FROM: Hans Krimm at NASA-GSFC D. M. Palmer (LANL), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/UMBC), C. B. Markwardt (GSFC), T. Sakamoto (AGU), M. Stamatikos (OSU), C. A. Swenson (PSU), 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 140709B (trigger #603866) (Swenson, et al., GCN Circ. 16551). The BAT ground-calculated position is RA, Dec = 146.040, 63.536 deg which is RA(J2000) = 09h 44m 09.5s Dec(J2000) = +63d 32' 10.0" with an uncertainty of 1.1 arcmin, (radius, sys+stat, 90% containment). The partial coding was 99%. The mask-weighted light curve shows a complex structure. The first peak has a broad, symmetrical shape, starting at T-20 sec, peaking at T+25 sec and ending at T+60 sec. Then the second episode begins at T+80 sec, with multiple short (~1-2 second) peaks extending to T+140 sec, before cutting off. The highest of these short peaks is at T+125 sec. T90 (15-350 keV) is 155.0 +- 22.3 sec (estimated error including systematics). The time-averaged spectrum from T-13.94 to T+197.51 sec is best fit by a power law with an exponential cutoff. This fit gives a photon index 0.79 +- 0.30, and Epeak of 152.6 +- 111.0 keV (chi squared 48.15 for 56 d.o.f.). For this model the total fluence in the 15-150 keV band is 4.2 +- 0.2 x 10^-06 erg/cm2 and the 1-sec peak flux measured from T+123.63 sec in the 15-150 keV band is 0.9 +- 0.1 ph/cm2/sec. A fit to a simple power law gives a photon index of 1.22 +- 0.07 (chi squared 54.91 for 57 d.o.f.). 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/603866/BA/
GCN 16561 table
GRB_name GRB140709B
GCN_number 16561
Detection_method Fermi GBM Det
t_trigger 15:17:52.850 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 16561 SUBJECT: GRB 140709B: Fermi GBM detection DATE: 14/07/10 03:08:23 GMT FROM: Binbin Zhang at UAH Bin-Bin Zhang (UAH) reports on behalf of the Fermi GBM Team: "At 15:17:52.85 UT on 09 July 2014, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 140709B (trigger 426611875 / 140709637) which was also detected by Swift (Swenson et al. 2014, GCN 16551). The GBM on-ground location, using the Fermi GBM trigger data, is consistent with the Swift/BAT location. The angle from the Fermi LAT boresight is 60 degrees. The GBM light curve consists of two main peaks with a total duration of about 150 s (50-300keV). The time-averaged spectrum from T0-132 s to T0+15 s is well fit by a power law function with an exponential high-energy cutoff. The power law index is -1.32 +/- 0.07 and the cutoff energy, parameterized as Epeak, is 530 +/- 232 keV. The event fluence (10-1000 keV) in this time interval is (1.6 +/- 0.1)E-05 erg/cm^2. The 1.024-sec peak photon flux measured starting from T0-1.28 s in the 10-1000 keV band is 1.9 +/- 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 16562 table
GRB_name GRB140709B
GCN_number 16562
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 16562 SUBJECT: GRB 140709B: Swift-XRT refined Analysis DATE: 14/07/10 04:29:04 GMT FROM: Phil Evans at U of Leicester M. de Pasquale (INAF-IASFPA), M.C. Stroh (PSU), D.N. Burrows (PSU), J.A. Kennea (PSU), B.P. Gompertz (U. Leicester), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), A. Maselli (INAF-IASFPA), A. Melandri (INAF-OAB) and C.A. Swenson report on behalf of the Swift-XRT team: We have analysed 10.0 ks of XRT data for GRB 140709B (Swenson et al. GCN Circ. 16551), from 85 s to 28.9 ks after the BAT trigger. The data comprise 207 s in Windowed Timing (WT) mode (the first 4 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. 16556). The late-time light curve (from T0+4.8 ks) can be modelled with a power-law decay with a decay index of alpha=0.99 (+0.13, -0.12). A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.14 (+/-0.07). The best-fitting absorption column is 2.2 (+0.5, -0.4) x 10^21 cm^-2, in excess of the Galactic value of 4.3 x 10^20 cm^-2 (Willingale et al. 2013). The PC mode spectrum has a photon index of 2.05 (+0.14, -0.13) and a best-fitting absorption column of 1.9 (+/-0.4) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.4 x 10^-11 (4.7 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 1.9 (+/-0.4) x 10^21 cm^-2 Galactic foreground: 4.3 x 10^20 cm^-2 Excess significance: 5.7 sigma Photon index: 2.05 (+0.14, -0.13) If the light curve continues to decay with a power-law decay index of 0.99, the count rate at T+24 hours will be 0.010 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 3.5 x 10^-13 (4.9 x 10^-13) erg cm^-2 s^-1. The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00603866. This circular is an official product of the Swift-XRT team.
GCN 16571 table
GRB_name GRB140709B
GCN_number 16571
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16571 SUBJECT: GRB 140709B: update of Khureltogot optical upper limit DATE: 14/07/10 16:35:49 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of Astronomy and Geophysics MAS), I.Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: After receiving a full data set we report details of the observation of the field of GRB 140709B (Swenson et al., GCN 16551) with ORI-40 telescope of Khureltogot observatory. We started observation on July 09 (UT) 15:31:51 and obtained 60 unfiltered images of 60 s exposure. Within enhanced XRT error circle (Goad et al., GCN 16556) we do not detect any new object neither in separate, nor in stacked images. Details of a photometry is following UT start t-T0,d Exp,s Filter Up_lim (3 sigma) 15:31:51 0.01334 5*60 None 18.9 15:31:51 0.01940 20*60 None 19.5 The photometry is based on SDSS star J094401.61+633253.8 assuming R=16.010+/-0.013 (using gri -> R Lupton transformations).
GCN 16622 table
GRB_name GRB140709B
GCN_number 16622
Detection_method Swift-UVOT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 16622 SUBJECT: GRB 140709B: Swift/UVOT Upper Limits DATE: 14/07/23 11:23:28 GMT FROM: Craig Swenson at PSU/Swift C. A. Swenson (PSU) reports on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 140709B 97 s after the BAT trigger (Swenson et al., GCN Circ. 16551). No optical afterglow consistent with the XRT position (Goad et al. GCN Circ. 16556) 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 4835 4985 147 >20.8 u_FC 97 346 246 >20.6 white 4835 6626 541 >21.7 v 633 7037 491 >20.5 b 352 6422 534 >20.9 u 97 6216 668 >21.2 w1 683 11259 922 >20.8 m2 1087 7230 440 >21.2 w2 758 6832 471 >20.6 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.04 in the direction of the burst (Schlegel et al. 1998).
GCN 16651 table
GRB_name GRB140709B
GCN_number 16651
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16651 SUBJECT: GRB 140709B: TShAO optical upper limit DATE: 14/08/01 17:36:06 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), W. Mundrzyjewski (Fesenkov Astrophysical Institute), A. Kusakin (Fesenkov Astrophysical Institute), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of the Swift GRB 140709B (Swenson et al., GCN 16551) with Zeiss-1000 (West) telescope of Tien Shan Astronomical Observatory starting on July 9, (UT) 15:50:27, i.e. 35 minutes after GRB trigger. We took several images in R-filter. Within enhanced XRT error circle (Goad et al., GCN 16556) we do not detect any new object in stacked images. Details of a photometry of stacked images are following Date UT start t-T0,d Exp,s Filter Up_Lim (3 sigma) 2014-07-09 15:50:27 0.09193 13*600 R 20.5 2014-07-10 15:36:01 1.06090 13*600 R 19.8 The photometry is based on SDSS star J094401.61+633253.8 assuming R=16.010+/-0.013 (using gri -> R Lupton transformations).