GRB190613B

This page lists all entries on GRB190613B in GRBweb

Summary Fermi GBM IPN Swift GCN 24806 GCN 24807 GCN 24808 GCN 24812 GCN 24814 GCN 24817 GCN 24818 GCN 24820 GCN 24823 GCN 24825 GCN 24826 GCN 24829 GCN 24831 GCN 24832 GCN 24836 GCN 24841 GCN 24844 GCN 24846 GCN 24848 GCN 25081

Summary table
Variable Value Source
GRB_name_Fermi GRB190613449
T0 10:46:58.257 UTC Fermi_GBM
ra 305.4319° Swift
decl -4.6467° Swift
pos_error 5.57e-05° Swift
T90 4.864 s Fermi_GBM
T90_error 0.923 s Fermi_GBM
T90_start 10:46:58.257 UTC Fermi_GBM
fluence 4.51e-06 erg/cm² Fermi_GBM
fluence_error 3.80e-08 erg/cm² Fermi_GBM
T100 164.583 s
GBM_located False
mjd 58647.44928538195 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB190613449
trigger_name bn190613449
ra 305.4221°
decl -4.6639°
pos_error 3.18e+00°
datum 2019-06-13
t_trigger 10:47:00.049 UTC
T90 4.864 s
T90_error 0.923 s
T90_start 10:46:58.257 UTC
fluence 4.51e-06 erg/cm²
fluence_error 3.80e-08 erg/cm²
flux_1024 7.47e+00 erg/cm²/s
flux_1024_error 2.72e-01 erg/cm²/s
flux_1024_time 2.05e+00 erg/cm²/s
flux_64 9.61e+00 erg/cm²/s
flux_64_error 1.20e+00 erg/cm²/s
IPN table
GRB_name GRB190613B
ra 305.4208°
decl -4.6667°
pos_error 5.00e-02°
Swift table
GRB_name GRB190613B
t_trigger 10:47:02 UTC
ra 305.4319°
decl -4.6467°
pos_error 5.57e-05°
T90 160.84 s
fluence 2.30e-06 erg/cm²
GCN 24806 table
GRB_name GRB190613B
GCN_number 24806
Detection_method Fermi GBM final loc
t_trigger 10:47:00 UTC
ra 305.4000°
decl -11.6000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 24806 SUBJECT: GRB 190613B: Fermi GBM Final Real-time Localization DATE: 19/06/13 10:58:04 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 10:47:00 UT on 13 Jun 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190613B (trigger 582115625.049376 / 190613449). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 305.4, Dec = -11.6 (J2000 degrees, equivalent to J2000 20h 21m, -11d 35'), with a statistical uncertainty of 3.2 degrees. The angle from the Fermi LAT boresight is 60.0 degrees. The skymap can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190613449/quicklook/glg_skymap_all_bn190613449.png The HEALPix FITS file, including the estimated localization systematic, can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190613449/quicklook/glg_healpix_all_bn190613449.fit The GBM light curve can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190613449/quicklook/glg_lc_medres34_bn190613449.gif
GCN 24807 table
GRB_name GRB190613B
GCN_number 24807
Detection_method Swift Det
t_trigger 10:47:02 UTC
ra 305.4220°
decl -4.6640°
Circular_text TITLE: GCN CIRCULAR NUMBER: 24807 SUBJECT: GRB 190613B: Swift detection of a burst with an optical counterpart DATE: 19/06/13 10:58:54 GMT FROM: David Palmer at LANL A. D'Ai (INAF-IASFPA), E. Ambrosi (INAF-IASFPA), V. D'Elia (SSDC), J.D. Gropp (PSU), N. J. Klingler (PSU), F. E. Marshall (NASA/GSFC), D. M. Palmer (LANL) and M. H. Siegel (PSU) report on behalf of the Neil Gehrels Swift Observatory Team: At 10:47:02 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 190613B (trigger=908329). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 305.422, -4.664 which is RA(J2000) = 20h 21m 41s Dec(J2000) = -04d 39' 49" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a complex structure with a duration of about 15 sec. The peak count rate was ~2500 counts/sec (15-350 keV), at ~1 sec after the trigger. The XRT began observing the field at 10:48:39.5 UT, 97.5 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 305.4294, -4.6461 which is equivalent to: RA(J2000) = 20h 21m 43.06s Dec(J2000) = -04d 38' 46.0" with an uncertainty of 4.8 arcseconds (radius, 90% containment). This location is 69 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 4.90e-09 erg cm^-2 s^-1 (0.2-10 keV). UVOT took a finding chart exposure of 150 seconds with the White filter starting 105 seconds after the BAT trigger. There is a candidate afterglow in the rapidly available 2.7'x2.7' sub-image at RA(J2000) = 20:21:43.65 = 305.43189 DEC(J2000) = -04:38:47.9 = -4.64665 with a 90%-confidence error radius of about 0.62 arc sec. This position is 9.2 arc sec. from the center of the XRT error circle. The estimated magnitude is 17.76 with a 1-sigma error of about 0.14. No correction has been made for the expected extinction corresponding to E(B-V) of 0.07. Burst Advocate for this burst is A. D'Ai (antonino.dai AT 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/)
GCN 24808 table
GRB_name GRB190613B
GCN_number 24808
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 24808 SUBJECT: GRB 190613B: BALROG localization (Fermi Trigger 582115625 / GRB 190613449) DATE: 19/06/13 11:13:48 GMT FROM: Jochen Greiner at MPE,Garching J. Burgess, F. Kunzweiler, B. Biltzinger, F. Berlato, & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 582115625 at 10:47:00 on 13 June 2019 were automatically fitted for spectrum and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427; Berlato et al. 2019, ApJ 873, 60). The best-fit position (1 sigma statistical errors) is: RA(2000.0) = 302.8+/-2.3 deg Decl.(2000.0) = -8.2+/-2.7 deg We estimate an additional systematic error of 1 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB190613449/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB190613449/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB190613449/json
GCN 24812 table
GRB_name GRB190613B
GCN_number 24812
Detection_method Swift-XRT Det
ra 305.4321°
decl -4.6469°
Circular_text TITLE: GCN CIRCULAR NUMBER: 24812 SUBJECT: GRB 190613B: Enhanced Swift-XRT position DATE: 19/06/13 14:19:40 GMT FROM: Phil Evans at U of Leicester A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester) report on behalf of the Swift-XRT team. Using 2078 s of XRT Photon Counting mode data and 6 UVOT images for GRB 190613B, 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 = 305.43206, -4.64686 which is equivalent to: RA (J2000): 20h 21m 43.69s Dec (J2000): -04d 38' 48.7" 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 24814 table
GRB_name GRB190613B
GCN_number 24814
Detection_method Fermi GBM Det
t_trigger 10:47:00.050 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 24814 SUBJECT: GRB 190613B: Fermi GBM observation DATE: 19/06/13 16:35:51 GMT FROM: Oliver J Roberts at USRA/NASA E. Bissaldi (Politecnico & INFN Bari), O.J. Roberts (USRA/NASA) and C. Meegan (UAH) report on behalf of the Fermi GBM Team: "At 10:47:00.05 UT on 13 June 2019, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 190613B (trigger 582115625 / 190613449), which was also detected by the Swift/BAT (D'Ai et al. 2019, GCN 24807) The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight at the GBM trigger time using the Swift-BAT position is 59 degrees. The GBM light curve consists of single bright peak with a duration (T90) of about 5 s (50-300 keV). The time-averaged spectrum from T0-1 s to T0+4 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -0.96 +/- 0.05 and the cutoff energy, parameterized as Epeak, is 334 +/- 35 keV. The event fluence (10-1000 keV) in this time interval is (4.4 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+2 s in the 10-1000 keV band is 7.5 +/- 0.3 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog: https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"
GCN 24817 table
GRB_name GRB190613B
GCN_number 24817
Detection_method Swift-UVOT Det
ra 305.4319°
decl -4.6467°
Circular_text TITLE: GCN CIRCULAR NUMBER: 24817 SUBJECT: GRB 190613B: Swift/UVOT Detection DATE: 19/06/13 17:39:39 GMT FROM: Frank Marshall at Swift/UVOT F. E. Marshall (NASA/GSFC) and A. D'Ai (INAF-IASFPA) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 190613B 106 s after the BAT trigger (D'Ai et al., GCN Circ. 24807). A source consistent with the enhanced XRT position (Beardmore et al. GCN Circ. 24812) is detected in the initial UVOT exposures. The preliminary UVOT position is: RA (J2000) = 20:21:43.66 = 305.43191 (deg.) Dec (J2000) = -04:38:48.0 = -4.64666 (deg.) with an estimated uncertainty of 0.43 arc sec. (radius, 90% confidence). Preliminary detections and 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag white 106 256 147 17.84 +/- 0.04 v 648 667 19 >18.0 b 574 594 19 >18.7 u 318 568 246 18.86 +/- 0.12 w1 697 717 19 >18.6 m2 672 692 19 >18.4 w2 624 643 19 >18.8 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.07 in the direction of the burst (Schlegel et al. 1998).
GCN 24818 table
GRB_name GRB190613B
GCN_number 24818
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 24818 SUBJECT: GRB 190613B: KAIT Optical Afterglow Confirmation DATE: 19/06/13 18:48:19 GMT FROM: Weikang Zheng at UC Berkeley WeiKang Zheng and Alexei V. Filippenko (UC Berkeley) report on behalf of the KAIT GRB team: The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at Lick Observatory, responded to the Swift GRB 190613B (D'Ai et al. GCN 24807) starting at 2311s after the burst. Observations were performed with a sequence in the clear (roughly R), V, and I filters, and the exposure time was 20 s per image. We detected the optical afterglow at the reported Swift/UVOT position (D'Ai et al., GCN 24798; Marshall & D'Ai, GCN 24817) in clear band image. We estimate the clear band magnitude to be ~19.3 at 2321s after the burst. [GCN OPS NOTE(14jun19): The typo in Swift's name was corrected.]
GCN 24820 table
GRB_name GRB190613B
GCN_number 24820
Detection_method Swift-BAT Det
ra 305.4340°
decl -4.6550°
Circular_text TITLE: GCN CIRCULAR NUMBER: 24820 SUBJECT: GRB 190613B: Swift-BAT refined analysis DATE: 19/06/13 19:48:02 GMT FROM: Amy Lien at GSFC T. N. Ukwatta (LANL), S. D. Barthelmy (GSFC), J. R. Cummings (CPI), A. D'Ai (INAF-IASFPA), H. A. Krimm (NSF), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), (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 190613B (trigger #908329) (D'Ai et al., GCN Circ. 24807). The BAT ground-calculated position is RA, Dec = 305.434, -4.655 deg which is RA(J2000) = 20h 21m 44.2s Dec(J2000) = -04d 39' 17.0" with an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment). The partial coding was 18%. The mask-weighted light curve shows a main pulse structure that starts at ~T-3 s, peaks at ~T0, and ends at ~T+2 s. In addition, there are some weak emissions that lasts until ~T+175 s. T90 (15-350 keV) is 160.84 +- 16.83 sec (estimated error including systematics). The time-averaged spectrum from T-2.85 to T+175.42 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.84 +- 0.24. The fluence in the 15-150 keV band is 2.3 +- 0.3 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+0.01 sec in the 15-150 keV band is 5.7 +- 0.7 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/908329/BA/ ReplyReply allForward
GCN 24823 table
GRB_name GRB190613B
GCN_number 24823
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 24823 SUBJECT: GRB 190613B: Swift-XRT refined Analysis DATE: 19/06/13 22:01:33 GMT FROM: Phil Evans at U of Leicester K.L. Page (U. Leicester), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), A. Melandri (INAF-OAB), P. D'Avanzo (INAF-OAB), A. Tohuvavohu (PSU), S. J. LaPorte (PSU), J.A. Kennea (PSU) and A. D'Ai report on behalf of the Swift-XRT team: We have analysed 6.3 ks of XRT data for GRB 190613B (D'Ai et al. GCN Circ. 24807), from 103 s to 19.3 ks after the BAT trigger. The data comprise 352 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Beardmore et al. (GCN Circ. 24812). The late-time light curve (from T0+5.3 ks) can be modelled with a power-law decay with a decay index of alpha=0.52 (+/-0.11). A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.93 (+/-0.05). The best-fitting absorption column is 3.28 (+0.24, -0.23) x 10^21 cm^-2, in excess of the Galactic value of 6.0 x 10^20 cm^-2 (Willingale et al. 2013). The PC mode spectrum has a photon index of 1.90 (+/-0.11) and a best-fitting absorption column of 2.6 (+0.5, -0.4) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.8 x 10^-11 (5.2 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 2.6 (+0.5, -0.4) x 10^21 cm^-2 Galactic foreground: 6.0 x 10^20 cm^-2 Excess significance: 7.6 sigma Photon index: 1.90 (+/-0.11) If the light curve continues to decay with a power-law decay index of 0.52, the count rate at T+24 hours will be 0.091 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 3.5 x 10^-12 (4.8 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/00908329. This circular is an official product of the Swift-XRT team.
GCN 24825 table
GRB_name GRB190613B
GCN_number 24825
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 24825 SUBJECT: GRB 190613B: Optical observations from NOT DATE: 19/06/14 04:57:01 GMT FROM: Antonio de Ugarte Postigo at IAA-CSIC A. de Ugarte Postigo (HETH/IAA-CSIC, DARK/NBI), D.B. Malesani (DTU Space), K.E. Heintz (U.Iceland), S. Moran (UTU, NOT) report on behalf of a larger collaboration: We observed the field of GRB 190613B (D’Ai et al. GCN 24807, Burgess et al. GCN 24808, Beardmore et al. GCN 24812, Bissaldi et al. GCN 24814, Marshall et al. GCN 24817, Zheng & Filippenko GCN 24818, Ukwatta et al. GCN 24820, Page et al. GCN 24823) using STANCAM, mounted on the 2.5m Nordic Optical Telescope, at Roque de los Muchachos Observatory (La Palma, Spain). The observations consisted of 3x300s imaging in R-band and 5x200s in z-band. Observations started on 14 June at 2:50 UT (16.05 hr after the burst). The optical counterpart is well detected in both bands at an estimated R(Vega) = 21.8+/-0.2 mag, as compared to field stars from the Nomad catalogue.
GCN 24826 table
GRB_name GRB190613B
GCN_number 24826
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 24826 SUBJECT: GRB 190613B: BOOTES-5/JGT early optical observations DATE: 19/06/14 05:04:33 GMT FROM: Alberto J. Castro-Tirado at IAA-CSIC Y.-D. Hu, X.-Y.Li, I. Carrasco, E. Fernandez-Garcia, A. Ayala and A. J. Castro-Tirado (IAA-CSIC), D. Hiriart and W. H. Lee (UNAM), S. Jeong and I. H. Park (SKKU) and M. D. Caballero-Garcia (ASU-CAS, CZ) on behalf of a larger collaboration, report: The 60cm BOOTES-5/JGT robotic telescope at Observatorio Astronomico Nacional in San Pedro Martir (Mexico) automatically responded to the Swift trigger of GRB 190613B (D'Ai et al., GCNC 24807). The first image (1s exposure, clear-filter) was obtained at 10:48:04.16 UT (i.e. 62s post-burst). We detect the optical afterglow at the position reported by Swift (Beardmore et al. GCNC 24812, Marshall et al. GCNC 24817) with R = 16.1. A sequence of images was obtained and the analysis is on going. The magnitude is calibrated against the USNO-B1 catalog and is not corrected for Galactic extinction in the direction of the GRB. We thank the staff at Observatorio Astronomico Nacional in San Pedro Martir for its excellent support.
GCN 24829 table
GRB_name GRB190613B
GCN_number 24829
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 24829 SUBJECT: GRB 190613B: Insight-HXMT/HE detection DATE: 19/06/14 14:23:15 GMT FROM: Qi Luo at IHEP Q. Luo, S. Xiao, C. Cai, Q. B. Yi, C. K. Li, X. B. Li, G. Li, J. Y. Liao, S. L. Xiong, C. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, X. F. Lu, A. M. Zhang, Y. F. Zhang, C. L. Zou (IHEP), Y. J. Jin, Z. Zhang (THU), T. P. Li (IHEP/THU), F. J. Lu, L. M. Song, M. Wu, Y. P. Xu, S. N. Zhang (IHEP), report on behalf of the Insight-HXMT team: At 2019-06-13T10:47:00.00 (T0), Insight-HXMT/HE detected GRB 190613B (trigger ID: HEB190613449) in a routine search of the data, which was also triggered by Fermi/GBM (GCN #24806) and Swift/BAT (D'Ai et al. 2019, GCN #24807). The Insight-HXMT/HE light curve mainly consists of two pulses with a duration (T90) of 3.59 s measured from T0-0.56 s. The 1-ms peak rate, measured from T0+2.09 s, is 2847 cnts/sec. The total counts from this burst is 6013 counts. URL_LC: http://www.hxmt.org/images/GRB/HEB190613449_lc.jpg All measurements above are made with the CsI detectors operating in the regular mode with the energy range of about 80-800 keV (deposited energy). Only gamma-rays with energy greater than about 200 keV can penetrate the spacecraft and leave signals in the CsI detectors installed inside of the telescope. Insight-HXMT is the first Chinese space X-ray telescope, which was funded jointly by the China National Space Administration (CNSA) and the Chinese Academy of Sciences (CAS). More information about it could be found at: http://www.hxmt.org.
GCN 24831 table
GRB_name GRB190613B
GCN_number 24831
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 24831 SUBJECT: GRB 190613B: GROND Detection of the Optical/NIR Afterglow DATE: 19/06/14 14:41:35 GMT FROM: Patricia Schady at Swift P. Schady (Uni. Bath) and J. Bolmer (MPE Garching) report: We observed the field of GRB 190613B (Fermi trigger 582115625.049376/190613449; GCN #24806, Swift trigger 908329; D'Ai et al., GCN #24807) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPG telescope at ESO La Silla Observatory (Chile). Observations started at 09:18 UT on 14 June 2019, 22.4 hrs after the GRB trigger. They were performed at an average seeing of 1.4" and at an average airmass of 1.2. We detect a single point source in our g'r'i'z'JH images consistent with the reported GRB optical and X-ray afterglow (Beardmore et al., GCN #24812, Marshall et al., GCN #24817). Based on a total 22 min exposure in g'r'i'z' and 22 min in JHK, we estimate the following preliminary magnitudes (all in Vega system): g' = 22.79 +/- 0.05 mag r' = 22.05 +/- 0.04 mag i' = 21.56 +/- 0.05 mag z' = 21.15 +/- 0.07 mag J = 20.5 +/- 0.1 mag H = 20.2 +/- 0.2 mag K > 19.8 mag Given magnitudes are calibrated against PanStarrs as well as 2MASS field stars and are not corrected for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V)=0.06 mag in the direction of the burst (Schlafly & Finkbeiner 2011). We thank the observer astronomer at the MPG 2.2m in La Silla for their help in obtaining these data.
GCN 24832 table
GRB_name GRB190613B
GCN_number 24832
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 24832 SUBJECT: GRB 190613B: Optical observation from Asiago Schmidt DATE: 19/06/14 15:13:45 GMT FROM: Sheng Yang at OAPD, INAF S. Yang, L. Tomasella, E. Cappellaro (OAPD, INAF) and N. Khetan (GSSI, L'Aquila) Using the 0.92m Asiago Schmidt telescope, we observed the field of GRB 190613B 11.954 h after the burst (D’Ai et al. GCN 24807) in g, r and i. We detected a source consistent with the optical and X-ray afterglow (Burgess et al. GCN 24808, Beardmore et al. GCN 24812, Bissaldi et al. GCN 24814, Marshall et al. GCN 24817, Zheng & Filippenko GCN 24818, Ukwatta et al. GCN 24820, Page et al. GCN 24823) in g band images while we could only set upper limits in the other bands. The measured magnitude and 2.5-sigma upper limits are listed below: Filter T_start T_stop JD_avg Exp(s) Mag g 2019-06-13T22:44:17 2019-06-13T23:02:00 58647.95239 180*5 21.40 +/- 0.30 r 2019-06-13T23:02:14 2019-06-13T23:20:00 58647.96488 180*5 > 20.1 i 2019-06-13T23:23:32 2019-06-13T23:34:38 58647.97735 180*5 > 20.4
GCN 24836 table
GRB_name GRB190613B
GCN_number 24836
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 24836 SUBJECT: GRB 190613B: SEDM Observations DATE: 19/06/15 01:26:59 GMT FROM: Virginia Cunningham at U of MD V. Cunningham (U of Maryland), J. D. Neill (Caltech), S. B. Cenko (NASA GSFC), and R. Walters (Caltech) report on behalf of the SEDM team: We observed the optical counterpart to GRB 190613B (D'Ai et al. GCN 24807) with the Spectral Energy Distribution Machine (SEDM) on the 60 inch telescope at Palomar Observatory. The SEDM is a low resolution (R ~ 100) integral field unit spectrometer with a multi-band (ugri) rainbow camera imager (see Blagorodnova et al. 2018, PASP, 130, 035003, and Rigault et al. 2019, astro-ph/1902.08526). The SEDM began observing the optical counterpart at 11:00:28 UTC (11.79 minutes after the burst trigger time). We performed an 1800 s exposure over the wavelength range 3800-9200 A. We tentatively identify an absorption feature at ~ 5385 A that is consistent with the Mg II 2796,2803 doublet at z = 0.92. However, due to the relatively low significance of the feature and the lack of corroborating lines, we cannot confirm this redshift currently. The continuum emission is well-fit by a power law spectrum with index alpha = 1.8 (f_nu ~ nu^-alpha). [GCN OPS NOTE(07sep19): Per author's request, In the last sentence, the "alpha = 0.09" was changed to "alpha = 1.8".]
GCN 24841 table
GRB_name GRB190613B
GCN_number 24841
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 24841 SUBJECT: GRB 190613B: Kitab observatory optical upper limit DATE: 19/06/16 14:10:05 GMT FROM: Alexei Pozanenko at IKI, Moscow S. Belkin (IKI), A. Novichonok (KIAM), A. Zhornichenko (KIAM), A. Pozanenko (IKI), E. Mazaeva (IKI), A. Volnova (IKI), I. Molotov (KIAM), Sh. Ehgamberdiev (UBAI) report on behalf of larger GRB IKI FuN collaboration: We observed the field of the GRB 190613B (D'Aiet al., GCN 24807) with RC-36 0.36-m telescope of Kitab Observatory starting on June 13 (UT) 22:26:32 in Clear filter. We do not detect the optical afterglow (D'Aiet al., GCN 24807; Marshall al., GCN 24817; Zheng al., GCN 24818; Ugarte Postigo al., GCN 24825; Hu al., GCN 24826). Preliminary photometry of the field is following. Date UT start t-T0 Filter Exp. OT Err. UL(3sigma) (mid, days) (s) 2019-06-13 20:55:3 0.43001 CR 3600 n/d n/d 20.0 The photometry is based on the nearby USNO-B1 (R2) stars. USNO-B1.0_id R2 0853-0556521 16.14 0853-0556781 16.31
GCN 24844 table
GRB_name GRB190613B
GCN_number 24844
Detection_method Konus-Wind Det
t_trigger 10:47:05.774 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 24844 SUBJECT: Konus-Wind observation of GRB 190613B DATE: 19/06/17 18:30:10 GMT FROM: Dmitry Svinkin at Ioffe Institute D. Svinkin, S. Golenetskii, R. Aptekar, D. Frederiks, M. Ulanov, A. Tsvetkova, A. Lysenko, A. Kozlova, and T. Cline on behalf of the Konus-Wind team, report: The long-duration GRB 190613B (Swift-BAT detection: D'Ai et al., GCN Circ. 24807; Fermi-GBM observation: Bissaldi et al., GCN Circ. 24814; Insight-HXMT/HE detection: Luo et al., GCN Circ. 24829) triggered Konus-Wind at T0=38825.774 s UT (10:47:05.774). The burst light curve shows a single pulse which starts at ~T0-2.6 s and has a total duration of ~4 s. The emission is seen up to ~3 MeV. As observed by Konus-Wind, the burst had a fluence of 3.48(-0.79,+1.29)x10^-6 erg/cm2, and a 64-ms peak flux, measured from T0+0.544 s, of 2.65(-1.10,+1.54)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range). The time-averaged spectrum of the burst (measured from T0 to T0+8.448 s) is best fit in the 20 keV - 4 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = -0.93(-0.53,+0.83) and Ep = 277(-107,+331) keV (chi2 = 82/72 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -1.8 (chi2 = 82/71 dof). The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB190613_T38825/ All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.
GCN 24846 table
GRB_name GRB190613B
GCN_number 24846
Detection_method AstroSat CZTI
t_trigger 10:47:02.500 UTC
T90 11.75 s
Circular_text TITLE: GCN CIRCULAR NUMBER: 24846 SUBJECT: GRB 190613B: AstroSat CZTI detection DATE: 19/06/18 05:55:40 GMT FROM: Prachee Ghumatkar at IUCAA/AstroSat P. Ghumatkar, V. Sharma, D. Bhattacharya, T. Khanam and A. Vibhute (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration: Analysis of AstroSat CZTI data showed the detection of a long GRB 190613B, which was also detected by Fermi GBM (GCN #24806), Swift detection (D'Ai A. et al., GCN #24807), BALROG (Burgess J. et al., GCN #24808), Swift-XRT (Beardmore A.P. et al., GCN #24812), Swift-BAT (Ukwatta T.N. et al., GCN #24820), Insight-HXMT/HE (Luo Q. et al., GCN #24829) and Konus-Wind (Svinkin D. et al., GCN #24844). The source was clearly detected in the 40-200 keV energy range. The light curve shows multiple pulses of emission with the strongest peak at 10:47:02.5 UT. The measured peak count rate associated with the burst is 439 cts/s above the background in the combined data of four quadrants, with a total of 1298 cts. The local mean background count rate was 654 cts/s. Using cumulative rates, we measure a T90 of 11.75 s. It was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range. CZTI GRB detections are reported regularly on the payload site at http://astrosat.iucaa.in/czti/?q=grb. CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, ISAC, IUCAA, SAC and PRL. The Indian Space Research Organisation funded, managed and facilitated the project.
GCN 24848 table
GRB_name GRB190613B
GCN_number 24848
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 24848 SUBJECT: GRB 190613B: JCMT SCUBA-2 sub-mm observations DATE: 19/06/19 01:14:23 GMT FROM: Ian Smith at Rice U I.A. Smith (Rice U.), D.A. Perley (LJMU), and N.R. Tanvir (U. of Leicester) report: We observed the location of GRB 190613B (D'Ai et al., GCN Circ. 24807) using the SCUBA-2 sub-millimeter continuum camera on the James Clerk Maxwell Telescope. The observation started at 11:40 UT on 2019-06-13, corresponding to 53 minutes after the burst trigger. Exposures totaling 1.0 hours were made in very good weather conditions. No source was detected, with the RMS background noise being 1.8 mJy/beam at 850 microns and 21.3 mJy/beam at 450 microns. We thank Kevin Silva, Jan Wouterloot, Koji Sugitani, and the JCMT staff for the prompt support of these observations that were taken under project M19AP044.
GCN 25081 table
GRB_name GRB190613B
GCN_number 25081
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 25081 SUBJECT: GRB 190613B: FRAM-Auger afterglow detection DATE: 19/07/17 11:48:38 GMT FROM: Martin Jelinek at Astro.Inst-AVCR,Ondrejov Martin Jelinek, Jan Strobl (ASU CAS Ondrejov, CZ), Martin Masek, Petr Janecek, Sergey Karpov, Jakub Jurysek, Jan Ebr, Ronan Cunniffe, Petr Travnicek and Michael Prouza (Institute of Physics, Prague, CZ) report: The 30cm robotic telescope FRAM-Auger in Malargüe (Argentina) reacted robotically to the Swift/BAT and Fermi/GBM alert of GRB190613B (D'Ai et al., GCNC 24807; Bissaldi et al., GCNC 24814), starting with a series of 20s unfiltered images at 10:47:33.45 UT, i.e. 31.4s post trigger. We detect the source reported by Marshall et al. (GCN 24817), Zheng & Filipenko (GCN 24818), Hu et al. (GCNC 24826), de Ugarte Postigo (GCNC 24825) and other teams at a 5 x 20s combined image taken between 79s and 202s after the initial trigger. The brightness of the object was r'(AB) = 15.6 +- 0.2, as calibrated against APASS Catalogue.