GRB130604A

This page lists all entries on GRB130604A in GRBweb

Summary IPN Swift GCN 14752 GCN 14753 GCN 14754 GCN 14756 GCN 14758 GCN 14760 GCN 14762 GCN 14763 GCN 14766 GCN 14768 GCN 14779

Summary table
Variable Value Source
T0 6:54:26 UTC GCN_circulars,Swift Det
ra 250.1870° Swift
decl 68.2264° Swift
pos_error 2.07e-04° Swift
T90 37.7 s Swift
T90_start 6:54:26 UTC Swift
fluence 1.40e-06 erg/cm² Swift
redshift 1.0600
T100 37.7 s
GBM_located False
mjd 56447.28780092593 GCN_circulars,Swift Det
IPN table
GRB_name GRB130604A
ra 250.0792°
decl 68.2167°
pos_error 5.00e-02°
Swift table
GRB_name GRB130604A
t_trigger 6:54:26 UTC
ra 250.1870°
decl 68.2264°
pos_error 2.07e-04°
T90 37.7 s
fluence 1.40e-06 erg/cm²
redshift 1.0600
GCN 14752 table
GRB_name GRB130604A
GCN_number 14752
Detection_method Swift Det
t_trigger 6:54:26 UTC
ra 250.0800°
decl 68.2100°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14752 SUBJECT: GRB 130604A: Swift detection of a burst DATE: 13/06/04 07:08:43 GMT FROM: David Palmer at LANL A. Melandri (INAF-OAB), P. D'Avanzo (INAF-OAB), C. Gronwall (PSU), C. B. Markwardt (NASA/GSFC), C. Pagani (U Leicester), D. M. Palmer (LANL), M. H. Siegel (PSU) and R. L. C. Starling (U Leicester) report on behalf of the Swift Team: At 06:54:26 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 130604A (trigger=557354). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 250.080, +68.210 which is RA(J2000) = 16h 40m 19s Dec(J2000) = +68d 12' 36" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single-peaked FRED-like structure with a duration of about 70 sec. The peak count rate was ~1500 counts/sec (15-350 keV), at ~5 sec after the trigger. The XRT began observing the field at 06:56:06.2 UT, 99.3 seconds after the BAT trigger. Using promptly downlinked data we find a bright, uncatalogued X-ray source with an enhanced position: RA, Dec 250.1889, 68.2260 which is equivalent to: RA(J2000) = 16h 40m 45.34s Dec(J2000) = +68d 13' 33.6" with an uncertainty of 3.6 arcseconds (radius, 90% containment). This location is 156 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. We cannot determine whether the source is fading at the present time. A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 4.70 x 10^20 cm^-2 (Kalberla et al. 2005). The initial flux in the 2.5 s image was 1.76e-09 erg cm^-2 s^-1 (0.2-10 keV). UVOT data are not available at this time. Analysis is awaiting the full data set. Burst Advocate for this burst is A. Melandri (andrea.melandri AT brera.inaf.it). 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 14753 table
GRB_name GRB130604A
GCN_number 14753
Detection_method Optical
ra 250.1887°
decl 68.2260°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14753 SUBJECT: GRB 130604A: P60 optical afterglow candidate DATE: 13/06/04 07:20:17 GMT FROM: Daniel Perley at Caltech D. A. Perley (Caltech) reports on behalf of a larger collaboration: The Palomar 60-inch telescope responded automatically to GRB 130604A (Melandri et al., GCN 14752) and began a series of images at 06:58:16 UT, three minutes after the alert notice. We detect a faint (~20 mag) source near the center of the XRT error circle in the initial 60-second r-band and i-band exposures. It is not clearly detected in z-band. The coordinates of the optical transient candidate are: RA = 16:40:45.290 DEC = +68:13:33.58 (+/- 0.9", J2000) Observations are continuing.
GCN 14754 table
GRB_name GRB130604A
GCN_number 14754
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 14754 SUBJECT: GRB 130604A: KAIT optical upper limit DATE: 13/06/04 08:41:19 GMT FROM: Weikang Zheng at U.of Michigan WeiKang Zheng and Alexei V. Filippenko (UC Berkeley) report on behalf of the KAIT GRB team: We observed the afterglow of GRB 130604A (Melandri et al., GCN 14752) with the 0.76-m Katzman Automatic Imaging Telescope (KAIT) located at Lick Observatory. Observations started at 06:57:07 UT, 161 s after the burst, with an automatic sequence in V, I, and clear filters (20 s exposure for each image). We do not detect the afterglow at the position reported by Perley (GCN 14753). We estimate the limiting magnitude in our first clear-band (close to R) image to be about 18.5 at a time of 330 s after the burst. Continuing observations are in progress.
GCN 14756 table
GRB_name GRB130604A
GCN_number 14756
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 14756 SUBJECT: GRB 130604A: ISON-NM optical upper limit DATE: 13/06/04 09:48:21 GMT FROM: Alexei Pozanenko at IKI, Moscow L. Elenin (KIAM), V. Savanevych (KNURE), A. Bryukhovetskiy (NSFCTC), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed of the field of the Swift GRB 130604A (Melandri et al., GCN 14752) with 0.45-m telescope of ISON-NM observatory on June. 04 (UT) 06:56:11, i.e. 105 s after burst trigger. Series of 30 s and 60 s exposures were obtained in clear filter. In the combined image of the first 3 images we do not detect afterglow candidate (Perley, GCB 14753). Preliminary photometry is based on the USNO-B1.0 (R2) nearby stars: UT start, T0+ Exposure, OT, UL (3 sigma) days s 06:56:11 0.0019 3x30 n/d 19.7
GCN 14758 table
GRB_name GRB130604A
GCN_number 14758
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 14758 SUBJECT: GRB 130604A: further ISON-NM optical observation DATE: 13/06/04 11:11:35 GMT FROM: Alexei Pozanenko at IKI, Moscow L. Elenin (KIAM), V. Savanevych (KNURE), A. Bryukhovetskiy (NSFCTC), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: After further inspection of images after observation of the Swift GRB 130604A (Melandri et al., GCN 14752) with 0.45-m telescope of ISON-NM (Elenin, et al., GCN 14756) we identified faint object (S/N ~ 3) in coordinates (J2000) 16 40 45.34 +68 13 34.5 with uncertainty of 0.2" (in both coordinates). Within errors this position coincides with the afterglow candidate (Perley, GCB 14753) and the error circle of XRT reported by Melandri et al. (GCN 14752). This object is not detected in our later combined images and can be the afterglow of GRB 130604A. Preliminary photometry of our images obtained in clear filter is based on USNO-B1.0 (R2) nearby stars: UT start, T0+ Exposure, OT, UL (3 sigma) mid,days s 06:56:11 0.0019 3x30 n/d 19.7 06:56:11 0.0035 9x30 20.3 +/- 0.3 20.0 06:56:11 0.0091 30x30 n/d 20.5 06:56:11 0.0171 60x30 n/d 20.8 Finding chart can be found at http://grb.rssi.ru/GRB130604A/GRB130604A_ISON_NM_9x30.png
GCN 14760 table
GRB_name GRB130604A
GCN_number 14760
Detection_method MITSuME
Circular_text TITLE: GCN CIRCULAR NUMBER: 14760 SUBJECT: GRB 130604A: MITSuME Okayama upper limits DATE: 13/06/04 15:15:58 GMT FROM: Daisuke Kuroda at OAO/NAOJ D. Kuroda, K. Yanagisawa, Y. Shimizu, H. Toda (OAO, NAOJ), S. Nagayama (NAOJ), M. Yoshida (Hiroshima), K. Ohta (Kyoto) and N. Kawai(Tokyo Tech) report on behalf of MITSuME and OISTER collaboration: We observed the field of GRB 130604A (Melandri et al., GCNC 14752) with the optical three color (g', Rc and Ic) CCD camera attached to the MITSuME 50cm telescope of Okayama Astrophysical Observatory. The observation started on 2013-06-04 11:52:48 UT (~5.0 h after the burst). We could not detect the previously reported afterglow (Perley, GCNC 14753; Elenin et al., GCNC 14758) in all the three bands. Three sigma upper limits of the OT are listed below. We used GSC 2.3 catalog for flux calibration. #T0+[day] MID-UT T-EXP[sec] g' Rc Ic ----------------------------------------------------- 0.24913 12:53:10 6360.0 >20.3 >20.2 >19.5 ----------------------------------------------------- T0+ : Elapsed time after the burst [day] T-EXP: Total Exposure time [sec]
GCN 14762 table
GRB_name GRB130604A
GCN_number 14762
Detection_method Optical
redshift 1.0600
Circular_text TITLE: GCN CIRCULAR NUMBER: 14762 SUBJECT: GRB 130604A: Gemini North Spectroscopy DATE: 13/06/04 16:07:17 GMT FROM: S. Bradley Cenko at Caltech S. B. Cenko (GSFC), N.R. Tanvir (Leicester)D. A Perley (Caltech), A. J. Levan (U. Warwick), and A. Cucchiara (UCSC / Lick) report on behalf of a larger collaboration: We have obtained optical spectra of the afterglow (Perley et al., GCN 14753) of GRB 130604A (Melandri et al., GCN 14752) with the Gemini Multi-Object Spectrograph mounted on the 8 m Gemini North telescope. Observations began at 8:16 UT on 2013 June 4 (~ 1.3 hr after the Swift trigger) and cover the wavelength range from 4000 - 8000 A. Superimposed on a faint continuum, we detect a single bright emission line at an observed wavelength of ~ 7674.0 A. There is some evidence the emission line is spectrally resolved. No other obvious features (in emission or absorption) are detected over our wavelength range. If we assume this feature corresponds to [O II], this implies a redshift of z = 1.06 for GRB 130604A. [GCN OPS NOTE(04Jun13): Per author's request, NRT was added to the author list.]
GCN 14763 table
GRB_name GRB130604A
GCN_number 14763
Detection_method Swift-XRT Det
ra 250.1882°
decl 68.2265°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14763 SUBJECT: GRB 130604A: Enhanced Swift-XRT position DATE: 13/06/04 16:19:19 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 832 s of XRT Photon Counting mode data and 2 UVOT images for GRB 130604A, 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 = 250.18823, +68.22651 which is equivalent to: RA (J2000): 16h 40m 45.18s Dec (J2000): +68d 13' 35.4" 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 14766 table
GRB_name GRB130604A
GCN_number 14766
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 14766 SUBJECT: GRB 130604A: Swift-XRT refined Analysis DATE: 13/06/05 07:08:04 GMT FROM: Phil Evans at U of Leicester M.C. Stroh (PSU), D.N. Burrows (PSU), P.A. Evans (U. Leicester), B.P. Gompertz (U. Leicester), J.P. Osborne (U. Leicester), P. D'Avanzo (INAF-OAB), V. D'Elia (ASDC), A. Maselli (INAF-IASFPA), J.A. Kennea (PSU) and A. Melandri report on behalf of the Swift-XRT team: We have analysed 5.7 ks of XRT data for GRB 130604A (Melandri et al. GCN Circ. 14752), from 105 s to 21.8 ks after the BAT trigger. The data comprise 146 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Goad et al. (GCN. Circ 14763). The light curve can be modelled with a power-law decay with a decay index of alpha=2.02 (+0.08, -0.06). A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 2.10 (+0.13, -0.12). The best-fitting absorption column is 2.8 (+/-0.4) x 10^21 cm^-2, in excess of the Galactic value of 4.7 x 10^20 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 2.1 (+/-0.3) and a best-fitting absorption column of 2.2 (+1.0, -0.9) 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 (5.9 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 2.2 (+1.0, -0.9) x 10^21 cm^-2 Galactic foreground: 4.7 x 10^20 cm^-2 Excess significance: 3.3 sigma Photon index: 2.1 (+/-0.3) If the light curve continues to decay with a power-law decay index of 2.02, the count rate at T+24 hours will be 5.8 x 10^-5 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 2.2 x 10^-15 (3.5 x 10^-15) erg cm^-2 s^-1. The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00557354. This circular is an official product of the Swift-XRT team.
GCN 14768 table
GRB_name GRB130604A
GCN_number 14768
Detection_method Swift-UVOT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 14768 SUBJECT: GRB 130604A: Swift/UVOT Upper Limits DATE: 13/06/05 10:15:08 GMT FROM: Alice Breeveld at MSSL-UCL A. A. Breeveld (MSSL-UCL) and A. Melandri (INAF-OAB) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 130604A 109 s after the BAT trigger (Melandri et al., GCN Circ. 14752). No optical afterglow consistent with the optical position (Perley, GCN Circ. 14753) 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 109 258 147 >20.4 white 109 17767 1345 >21.8 v 5004 11999 1055 >20.3 b 4388 16933 1278 >21.5 u 267 5818 378 >20.0 w1 5414 5613 197 >20.0 m2 5208 5408 197 >19.7 w2 4798 11112 1082 >21.3 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.03 in the direction of the burst (Schlegel et al. 1998).
GCN 14779 table
GRB_name GRB130604A
GCN_number 14779
Detection_method Swift-BAT Det
ra 250.1660°
decl 68.2250°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14779 SUBJECT: GRB 130604A: Swift-BAT refined analysis DATE: 13/06/06 12:26:59 GMT FROM: Scott Barthelmy at NASA/GSFC 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/GSFC/ORAU), C. B. Markwardt (GSFC), A. Melandri (INAF-OAB), 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-240 to T+962 sec from recent telemetry downlinks, we report further analysis of BAT GRB 130604A (trigger #557354) (Melandri, et al., GCN Circ. 14752). The BAT ground-calculated position is RA, Dec = 250.166, 68.225 deg, which is RA(J2000) = 16h 40m 39.9s Dec(J2000) = +68d 13' 28.4" with an uncertainty of 1.1 arcmin, (radius, sys+stat, 90% containment). The partial coding was 81%. The mask-weighted light curve shows a FRED-like peak starting at ~T-1 sec, peaking at ~T+10 sec, and ending at ~T+90 sec. T90 (15-350 keV) is 37.7 +- 4.6 sec (estimated error including systematics). The time-averaged spectrum from T-0.44 to T+43.58 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.51 +- 0.12. The fluence in the 15-150 keV band is 1.4 +- 0.1 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+14.39 sec in the 15-150 keV band is 0.8 +- 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/557354/BA/