//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28098 SUBJECT: GRB 200714E: Fermi GBM Final Real-time Localization DATE: 20/07/14 18:45:56 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 18:35:05 UT on 14 Jul 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200714E (trigger 616444510.078062 / 200714774). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 215.8, Dec = -49.7 (J2000 degrees, equivalent to J2000 14h 23m, -49d 42'), with a statistical uncertainty of 1.1 degrees. The angle from the Fermi LAT boresight is 92.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200714774/quicklook/glg_skymap_all_bn200714774.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200714774/quicklook/glg_healpix_all_bn200714774.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200714774/quicklook/glg_lc_medres34_bn200714774.gif //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28099 SUBJECT: GRB 200714E: BALROG localization (Fermi Trigger 616444510 / GRB 200714774) DATE: 20/07/14 19:18:04 GMT FROM: Jochen Greiner at MPI B. Biltzinger, F. Kunzweiler, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 616444510 at 18:35:05 on 14 July 2020 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) = 194.8+/-2.2 deg Decl.(2000.0) = -52.4+/-1.8 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB200714774/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB200714774/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB200714774/json //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28103 SUBJECT: GRB 200714E: Swift/BAT-GUANO detection and arcminute localization DATE: 20/07/15 04:01:20 GMT FROM: Aaron Tohuvavohu at U Toronto Aaron Tohuvavohu (U Toronto), James DeLaunay (PSU), Jamie Kennea (PSU) report: Swift/BAT did not trigger on GRB 200714E (T0: 2020-07-14 18:35:05 UTC, Fermi/GBM Team GCN 28098) due to a slew. The Fermi/GBM notice, distributed at T0+6 seconds triggered the Swift Mission Operations Center operated Gamma-ray Urgent Archiver for Novel Opportunities (GUANO; Tohuvavohu et al. 2020, arXiv: 2005.01751). Upon trigger by this notice, GUANO sent a command to the Swift Burst Alert Telescope (BAT) to save 200 seconds of BAT event-mode data from [-50,+150] seconds around the time of the burst. All the requested event mode data was delivered to the ground. Using the normal BAT imaging technique, we find the location of the GRB with an SNR of 11.5. The BAT ground-calculated position is RA, Dec = 196.8656, -51.6403 deg which is RA(J2000) = 13h 7m 27.7s Dec(J2000) = -51d 38' 25" with an uncertainty of 5 arcmin, (radius, sys+stat, 90% containment). The partial coding was 28.9%. This position is consistent with the Fermi GBM localization (GCN 28098) and the BALROG localization (GCN 28099). XRT and UVOT follow-up has been triggered. Results of follow-up observations will be reported in future circulars. GUANO is a fully autonomous, extremely low latency, spacecraft commanding pipeline designed for targeted recovery of BAT event mode data around the times of compelling astrophysical events to enable more sensitive GRB searches. A live reporting of Swift/BAT event data recovered by GUANO can be found at: https://www.swift.psu.edu/guano/ //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28104 SUBJECT: GRB 200714E: Swift ToO observations DATE: 20/07/15 04:26:09 GMT FROM: Phil Evans at U of Leicester P. A. Evans (U. Leicester) reports on behalf of the Swift team: Swift has initiated a ToO observation of the Swift/BAT GRB 200714E. Automated analysis of the XRT data will be presented online at https://www.swift.ac.uk/ToO_GRBs/00021017 Any uncatalogued X-ray sources detected in this analysis will be reported on this website and via GCN COUNTERPART notices. These are not necessarily related to the Swift/BAT event. Any X-ray source considered to be a probable afterglow candidate will be reported via a GCN Circular after manual consideration. Details of the XRT automated analysis methods are detailed in Evans et al. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8). This circular is an official product of the Swift-XRT team. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28105 SUBJECT: GRB 200714E: AGILE detection DATE: 20/07/15 09:03:33 GMT FROM: Alessandro Ursi at INAF/IAPS A. Ursi (INAF/IAPS), M. Pilia (INAF/OA-Cagliari), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), F. Lucarelli, C. Pittori, F. Verrecchia (SSDC, and INAF/OAR), A. Argan, M. Cardillo, C. Casentini, Y. Evangelista, G. Piano (INAF/IAPS), A. Bulgarelli, V. Fioretti, F. Fuschino, N. Parmiggiani (INAF/OAS-Bologna), M. Marisaldi (INAF/OAS-Bologna, and Bergen University), F. Longo (Univ. Trieste and INFN Trieste), A. Trois (INAF/OA-Cagliari), I. Donnarumma (ASI), A. Giuliani (INAF/IASF-Mi), report on behalf of the AGILE Team: The AGILE satellite detected the GRB 200714E reported by Fermi-GBM (GCN #28098, trigger 616444510.078062 / 200714774), occurring at T0 = 2020-07-14 18:35:05 s (UTC). The event is clearly visible in the scientific ratemeters (RMs) of the SuperAGILE detector (18-60 keV). The light curve shows a double-peaked FRED profile, lasting ~13 s and releasing ~1200 counts. The SuperAGILE RMs light curve can be found at http://www.agilescienceapp.it/notices/GRB200714E_SuperAGILE_RMs.png . Additional analysis of AGILE data is in progress. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28106 SUBJECT: Fermi GRB 200714E: Global MASTER-Net observations report DATE: 20/07/15 10:15:45 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), H.Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-IAC robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB 200714E ( Fermi GBM team, GCN 28098) errorbox 8778 sec after notice time and 8805 sec after trigger time at 2020-07-14 21:01:50 UT, with upper limit up to 16.5 mag. Observations started at twilight. The observations began at zenith distance = 76 deg. The sun altitude is -12.5 deg. The galactic latitude b = 17 deg., longitude l = 321 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1401343 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 8836 | 2020-07-14 21:01:50 | MASTER-IAC | (14h 49m 10.37s , -47d 53m 55.1s) | C | 60 | 16.3 | 8836 | 2020-07-14 21:01:50 | MASTER-IAC | (14h 37m 06.81s , -47d 49m 28.7s) | C | 60 | 15.8 | 9188 | 2020-07-14 21:07:43 | MASTER-IAC | (14h 49m 16.41s , -47d 55m 48.3s) | C | 60 | 16.5 | 9188 | 2020-07-14 21:07:43 | MASTER-IAC | (14h 37m 12.64s , -47d 51m 21.3s) | C | 60 | 16.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28107 SUBJECT: GRB 200714E: Swift-XRT observations DATE: 20/07/15 13:24:55 GMT FROM: Phil Evans at U of Leicester V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), B. Sbarufatti (PSU), D.N. Burrows (PSU), J. D. Gropp (PSU), A.P. Beardmore (U. Leicester), J.P. Osborne (U. Leicester), A. Melandri (INAF-OAB) and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team: Swift-XRT has performed follow-up observations of the Fermi-GBM and Swift/BAT (GUANO)-detected burst GRB 200714E (GCN Circs. 28098 and 28103), collecting 2.2 ks of Photon Counting (PC) mode data between T0+37.3 ks and T0+44.5 ks. One uncatalogued X-ray source has been detected, it is below the RASS limit and shows no definitive signs of fading. Therefore, at the present time we cannot confirm this as the afterglow. Details of this source are given below: Source 1: RA (J2000.0): 196.8225 = 13:07:17.41 Dec (J2000.0): -51.6390 = -51:38:20.4 Error: 3.1 arcsec (radius, 90% conf. [Enhanced position]) Count-rate: 0.0138 +/- 0.0033 ct s^-1 Distance: 96 arcsec from Swift/BAT position. Flux: (6.2 +/- 1.5)e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV) The results of the XRT-team automatic analysis of the XRT observations, including a position-specific upper limit calculator, are available at https://www.swift.ac.uk/ToO_GRBs/00021017. Further observations are planned. This circular is an official product of the Swift-XRT team. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28108 SUBJECT: GRB 200714E: Fermi GBM observation DATE: 20/07/15 20:30:31 GMT FROM: Cori Fletcher at USRA C. Fletcher (USRA), R. Dunwoody (UCD), J. Mangan (UCD) and C. Meegan (UAH) report on behalf of the Fermi GBM Team: "At 18:35:05.08 UT on 14 July 2020, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 200714E (trigger 616444510 / 200714774), which was also detected by the Swift/BAT-GUANO (Tohuvavohu et al. 2020, GCN 28103). The Fermi GBM Final Real-time Localization (GCN 28098) is consistent with the Swift position. The angle from the Fermi LAT boresight at the GBM trigger time is 104 degrees. The GBM light curve shows a single bright peak with a duration (T90) of about 20 s (50-300 keV). The time-averaged spectrum from T0+0.8 s to T0+21.3 s is best fit by a Band function with Epeak = 189 +/- 28 keV, alpha = -0.92 +/- 0.09, and beta = -2.3 +/- 0.3. The event fluence (10-1000 keV) in this time interval is (9.4 +/- 0.5)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+3.4 s in the 10-1000 keV band is 11.1 +/- 0.4 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/" //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28150 SUBJECT: GRB 200714E: Swift-XRT afterglow detection DATE: 20/07/21 15:18:10 GMT FROM: Phil Evans at U of Leicester V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), B. Sbarufatti (PSU), D.N. Burrows (PSU), J. D. Gropp (PSU), A.P. Beardmore (U. Leicester), J.P. Osborne (U. Leicester), A. Melandri (INAF-OAB) and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team: Swift-XRT has conducted further observations of the field of the Swift/BAT-GUANO-detected burst GRB 200714E (Tohuvavohu et al. GCN Circ. 28103). The observations now extend from T0+37.4 ks to T0+578.8 ks. The source previously reported by D'Elia et al. (GCN Circ. 28107), "Source 1", is fading with 3-sigma significance, and is therefore likely the GRB afterglow. Using 4152 s of PC mode data and 4 UVOT images, we find an enhanced XRT position (using the XRT-UVOT alignment and matching UVOT field sources to the USNO-B1 catalogue): RA, Dec = 196.82291, -51.63937 which is equivalent to: RA (J2000): 13h 07m 17.50s Dec(J2000): -51d 38' 21.7" with an uncertainty of 2.2 arcsec (radius, 90% confidence). This position is 95 arcsec from the Swift/BAT position. The source is fading with alpha >0.5. A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 1.6 (+0.6, -0.3). The best-fitting absorption column is consistent with the Galactic value of 3.1 x 10^21 cm^-2 (Willingale et al. 2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.6 x 10^-11 (5.6 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 3.1 (+/-2.2) x 10^21 cm^-2 Galactic foreground: 3.1 x 10^21 cm^-2 Excess significance: <1.6 sigma Photon index: 1.6 (+0.6, -0.3) The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00021017. The results of the full analysis of the XRT observations are available at https://www.swift.ac.uk/ToO_GRBs/00021017. This circular is an official product of the Swift-XRT team.