GRB 191104C
GCN Circular 26166
Subject
Fermi GBM GRB 191104C (trigger 594592184 / 191104854) is not a GRB
Date
2019-11-04T21:37:06Z (7 years ago)
From
Bagrat Mailyan at UAH <bm0054@uah.edu>
B. Mailyan (UAH) reports on behalf of the Fermi Gamma-ray Burst Monitor
Team:
���On 04 November 2019 at 20:29:39.82 UT the Fermi Gamma-ray Burst Monitor
trigger 594592184 / 191104854 tentatively classified as a GRB (GRB 191104C
in GCN #26165) is in fact not due to a GRB. This is a SGR-like burst from
the direction of SGR 1935+2154."
GCN Circular 26165
Subject
GRB 191104C: Fermi GBM Final Real-time Localization
Date
2019-11-04T20:40:02Z (7 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely SHORT GRB
At 20:29:39 UT on 4 Nov 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 191104C (trigger 594592184.818686 / 191104854).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 288.4, Dec = 26.9 (J2000 degrees, equivalent to J2000 19h 13m, 26d 53'), with a statistical uncertainty of 14.7 degrees.
The angle from the Fermi LAT boresight is 72.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191104854/quicklook/glg_skymap_all_bn191104854.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191104854/quicklook/glg_healpix_all_bn191104854.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191104854/quicklook/glg_lc_medres34_bn191104854.gif
GCN Circular 26158
Subject
GRB 191104C: BALROG localization (Fermi Trigger 594557071 / GRB 191104448)
Date
2019-11-04T11:08:06Z (7 years ago)
From
Jochen Greiner at MPE,Garching <jcg@mpe.mpg.de>
F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
594557071 at 10:44:26 on 04 Nov. 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) = 291.3+/-0.8 deg
Decl.(2000.0) = 23.7+/-0.6 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB191104448/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB191104448/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB191104448/json
GCN Circular 26157
Subject
GRB 191104C: Fermi GBM Final Real-time Localization
Date
2019-11-04T10:54:49Z (7 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely SHORT GRB
At 10:44:26 UT on 4 Nov 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 191104C (trigger 594557071.308326 / 191104448).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 289.4, Dec = 22.7 (J2000 degrees, equivalent to J2000 19h 17m, 22d 41'), with a statistical uncertainty of 2.5 degrees.
The angle from the Fermi LAT boresight is 53.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191104448/quicklook/glg_skymap_all_bn191104448.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191104448/quicklook/glg_healpix_all_bn191104448.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191104448/quicklook/glg_lc_medres34_bn191104448.gif