GRB250119B

This page lists all entries on GRB250119B in GRBweb

Summary Fermi GBM IPN GCN 38979 GCN 38980 GCN 38997 GCN 39003 GCN 39007 GCN 39016 GCN 39460

Summary table
Variable Value Source
GRB_name_Fermi GRB250119352
T0 8:27:01 UTC GCN_circulars,Fermi GBM final loc
ra 304.1458° IPN
decl 2.0333° IPN
pos_error 7.90e+00° IPN
T90 255.493 s Fermi_GBM
T90_error 0.572 s Fermi_GBM
T90_start 8:27:16.266 UTC Fermi_GBM
fluence 8.86e-05 erg/cm² Fermi_GBM
fluence_error 5.45e-08 erg/cm² Fermi_GBM
T100 270.759 s
GBM_located False
mjd 60694.35209490741 GCN_circulars,Fermi GBM final loc
Fermi GBM table
GRB_name_Fermi GRB250119352
trigger_name bn250119352
ra 306.7400°
decl 21.2300°
pos_error 2.53e+00°
datum 2025-01-19
t_trigger 8:27:01.674 UTC
T90 255.493 s
T90_error 0.572 s
T90_start 8:27:16.266 UTC
fluence 8.86e-05 erg/cm²
fluence_error 5.45e-08 erg/cm²
flux_1024 1.76e+01 erg/cm²/s
flux_1024_error 4.12e-01 erg/cm²/s
flux_1024_time 4.35e+01 erg/cm²/s
flux_64 2.44e+01 erg/cm²/s
flux_64_error 1.68e+00 erg/cm²/s
IPN table
GRB_name GRB250119B
ra 304.1458°
decl 2.0333°
pos_error 7.90e+00°
GCN 38979 table
GRB_name GRB250119B
GCN_number 38979
Detection_method Fermi GBM final loc
t_trigger 8:27:01 UTC
ra 306.7000°
decl 21.2000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 38979 SUBJECT: GRB 250119B: Fermi GBM Final Real-time Localization DATE: 25/01/19 08:37:41 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 08:27:01 UT on 19 Jan 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250119B (trigger 758968026.673982 / 250119352). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 306.7, Dec = 21.2 (J2000 degrees, equivalent to J2000 20h 26m, 21d 11'), with a statistical uncertainty of 1.0 degrees. The angle from the Fermi LAT boresight is 106.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250119352/quicklook/glg_skymap_all_bn250119352.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250119352/quicklook/glg_healpix_all_bn250119352.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250119352/quicklook/glg_lc_medres34_bn250119352.gif
GCN 38980 table
GRB_name GRB250119B
GCN_number 38980
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 38980 SUBJECT: GRB 250119B: BALROG localization (Fermi Trigger 758968026 / GRB 250119352) DATE: 25/01/19 08:59:13 GMT FROM: Jochen Greiner at MPE T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 758968026 at 08:27:01 on 19 Jan. 2025 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 is: RA(2000.0) = 306.3 deg Decl.(2000.0) = 19.3 deg The 1 sigma statistical error radius is 1.8 deg. We estimate an additional systematic error of 1 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB250119352/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB250119352/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB250119352/json
GCN 38997 table
GRB_name GRB250119B
GCN_number 38997
Detection_method INTEGRAL
Circular_text TITLE: GCN CIRCULAR NUMBER: 38997 SUBJECT: GRB 250119B: INTEGRAL/SPI-ACS detection DATE: 25/01/20 11:35:31 GMT FROM: Aishwarya L Thakur at INAF-IAPS, Rome Patrizia Barria(a,b), Giulia Gianfagna(a), James Craig Rodi(a), Aishwarya Linesh Thakur(a), Luigi Piro(a), Lorenzo Natalucci(a,b) report: GRB 250119B was discovered by Fermi/GBM (GCN 38979, 38980) at time 2025-01-16T08:27:01 (UTC). We searched for any corresponding counterpart in the INTEGRAL/SPI-ACS data. In a SPI-ACS light curve above 80 keV we find a signal temporally coincident with the GBM detection having an approximate duration of ~ 60 sec.The signal consists of several pulses over this duration. The approximate peak count rate in SPI-ACS is 90,000 cts/s for E>80 keV, over a median background rate of 65,400 cts/s. This work is based on observations with INTEGRAL, an ESA project with instruments and a science data centre funded by ESA member states (especially the PI countries: Denmark, France, Germany, Italy, Switzerland, and Spain), and with the participation of Russia and the USA. The SPI-ACS detector system has been provided by MPE Garching/Germany. ----- (a) INAF/IAPS-Rome (b) ICSC National Research Centre for High-Performance Computing
GCN 39003 table
GRB_name GRB250119B
GCN_number 39003
Detection_method Fermi GBM Det
t_trigger 8:27:01.670 UTC
ra 306.7400°
decl 21.2300°
Circular_text TITLE: GCN CIRCULAR NUMBER: 39003 SUBJECT: GRB 250119B: Fermi GBM Observation DATE: 25/01/20 16:45:38 GMT FROM: Utkarsh Pathak at IIT Bombay U. Pathak (IITB), R. Sonawane (IISER, TVM), and C. Meegan (UAH) report on behalf of the Fermi Gamma-ray Burst Monitor Team: "At 08:27:01.67 UT on 19 January 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250119B (trigger 758968026/250119352) which was also detected by INTEGRAL/SPI-ACS (Barria et al. 2025, GCN 38997). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 306.74, Dec = 21.23 (J2000 degrees, equivalent to J2000 20h 26m, +21d 13'), with a statistical uncertainty of 1.00 degrees. (radius, 1-sigma containment, statistical only; there is additionally a systematic error which we have characterized as a mixture of two Gaussians, one with a radius of 1.8 degrees (52% contribution) and one with a radius of 4.1 degrees (47% contribution) [A. Goldstein et al. 2020, ApJ, 895, 1]). The angle from the Fermi LAT boresight is 106 degrees. The GBM light curve consists of two emission episodes with multiple spikes for a duration (T90) of about 255.5 s (50-300 keV). The time-averaged spectrum from T0-4 to T0+300 s is best fit by a Band function with Epeak = 297 +/- 14 keV, alpha = -0.98 +/- 0.02, and beta = -2.6 +/- 0.2. The event fluence (10-1000 keV) in this time interval is (9.2 +/- 0.1)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0+44 s in the 10-1000 keV band is 17.6 +/- 0.4 ph/s/cm^2. A power law function with an exponential high-energy cutoff fits the spectrum equally well with Epeak= 314 +/- 11 keV, and alpha = -0.99 +/- 0.02. 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 39007 table
GRB_name GRB250119B
GCN_number 39007
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 39007 SUBJECT: GRB 250119B: Swift/BAT-GUANO localization skymap of a long burst DATE: 25/01/22 02:44:43 GMT FROM: Samuele Ronchini at PSU Samuele Ronchini (PSU), James DeLaunay (PSU), Aaron Tohuvavohu (Caltech), Gayathri Raman (PSU), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report: Swift/BAT did not localize GRB 250119B onboard (T0: 2025-01-19T08:27:02.72 UTC, Fermi GCN 38979, BALROG GCN 38980, INTEGRAL GCN 38997) The Fermi notice, distributed in near real-time, triggered the Swift Mission Operations Center operated Gamma-ray Urgent Archiver for Novel Opportunities (GUANO; Tohuvavohu et al. 2020, ApJ, 900, 1). 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. The BAT likelihood search, NITRATES (DeLaunay + Tohuvavohu 2022, ApJ, 941, 169), performed on the temporal window [T0-20 s, T0+20 s], detects the burst with a sqrt(TS) of 32.6 in a 8.192 s analysis time bin, starting at T0+16.3844 s. Using the NITRATES analysis, parameter estimation was performed to obtain the localization of this burst in the form of a HEALPIX Multi-Order Coverage (MOC) skymap. This localization accounts for both statistical and systematic errors. More details in the creation and calibration of these maps will soon be published (DeLaunay et al. 2025. in prep) The 90% credible area is 82 deg2 and the 50% credible area is 25 deg2. The integrated probability inside the coded field of view is 1%. The NITRATES skymap is consistent with the Fermi and BALROG localizations. A plot of the probability skymap can be viewed here: [skymap_plot](https://guano.swift.psu.edu/trigger_report?id=758968057/#:~:text=Probability%20Skymap) The probability skymap file can be downloaded from the link here [skymap_fits_file](https://guano.swift.psu.edu/files/758968057/0_n_PROBMAP) Instructions on how to read and manipulate this map can be found here: https://guano.swift.psu.edu/documentation More details about this burst can be found on the trigger report page here: https://guano.swift.psu.edu/trigger_report?id=758968057 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/
GCN 39016 table
GRB_name GRB250119B
GCN_number 39016
Detection_method Konus-Wind Det
t_trigger 8:27:14.631 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 39016 SUBJECT: Konus-Wind detection of GRB 250119B DATE: 25/01/23 15:22:17 GMT FROM: Anna Ridnaia at Ioffe Institute A. Ridnaia, D. Frederiks, A. Lysenko, D. Svinkin, A. Tsvetkova, M. Ulanov, and T. Cline, on behalf of the Konus-Wind team, report: The long-duration GRB 250119B (Fermi-GBM detection: Fermi GBM team, GCN 38979; Preis et al., GCN 38980; Pathak et al., GCN 39003; INTEGRAL/SPI-ACS detection: Barria et al., GCN 38997; Swift-BAT/GUANO detection: Ronchini et al., 39007 IPN triangulation: Kozyrev et al., GCN 39015) triggered Konus-Wind at T0=30434.631 s UT (08:27:14.631). The burst light curve shows two separated multipeaked emission episodes. The first episode starts at ~T0-18.6 s and has a total duration of ~162 s, the second starts at ~T0+233 s and lasts up to ~T0+274 s. The emission is seen up to ~3 MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB250119_T30434/ As observed by Konus-Wind, the burst had a fluence of 1.36(-0.16,+0.16)x10^-4 erg/cm2, and a 64-ms peak flux, measured from T0+31.440 s, of 9.43(-1.10,+1.11)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+273.664 s) is best fit in the 20 keV - 10 MeV range by the GRB (Band) model with the following parameters: the low-energy photon index alpha = -1.02(-0.08,+0.09), the high energy photon index beta = -2.37(-0.35,+0.19), the peak energy Ep = 332(-36,+43) keV (chi2 = 95/96 dof). The spectrum near the maximum count rate (measured from T0+29.184 to T0+36.096 s) is best fit in the 20 keV - 10 MeV range by the GRB (Band) model with the following parameters: the low-energy photon index alpha = -0.64(-0.08,+0.09), the high energy photon index beta = -2.43(-0.17,+0.12), the peak energy Ep = 297(-20,+23) keV (chi2 = 85/79 dof). All the quoted errors are at the 68% confidence level. All the quoted values are preliminary.
GCN 39460 table
GRB_name GRB250119B
GCN_number 39460
Detection_method INTEGRAL
Circular_text TITLE: GCN CIRCULAR NUMBER: 39460 SUBJECT: GRB 250119B: VZLUSAT-2 detection DATE: 25/02/24 18:21:07 GMT FROM: Marianna Dafčíková at Masaryk University <500025@mail.muni.cz> M. Dafcikova, J. Ripa (Masaryk U.), A. Pal (Konkoly Observatory), N. Werner (Masaryk U.), M. Ohno (Hiroshima U.), L. Meszaros, B. Csak (Konkoly Observatory), H. Takahashi (Hiroshima U.), F. Munz , M. Topinka, F. Hroch, N. Husarikova, J.-P. Breuer (Masaryk U.), J. Hudec, J. Kapus, M. Frajt, M. Rezenov (Spacemanic s.r.o), R. Laszlo (Needronix), G. Galgoczi (Wigner Research Center/Eotvos U.), N. Uchida (ISAS/JAXA), T. Enoto (Kyoto U.), Zs. Frei (Eotvos U.), Y. Fukazawa, K. Hirose, H. Matake (Hiroshima U.), S. Hisadomi (Nagoya U.), Y. Ichinohe (Rikkyo U.), L. L. Kiss (Konkoly Observatory), T. Mizuno (Hiroshima U.), K. Nakazawa (Nagoya U.), H. Odaka (Univ of Tokyo), K. Torigoe (Hiroshima U.), P. Svoboda, V. Daniel, J. Dudas, M. Junas, J. Gromes (VZLU), I. Vertat (FEL ZCU) -- the VZLUSAT-2/GRB payload collaboration. The long-duration GRB 250119B (FERMI/GBM detection: GCN 38979; INTEGRAL/SPI-ACS detection: GCN Circular 38997; Swift/BAT-GUANO detection: GCN 39007; Konus/Wind detection: GCN 39016; NuSTAR detection at 2025-01-19 08:27:23 UTC) was detected by the GRB detector on board of the VZLUSAT-2 3U CubeSat (https://www.vzlusat2.cz/en/). The data acquisition was performed by the GRB detector unit no. 1. The detection was confirmed at the peak time 2025-01-19 08:27:44 UTC. The T90 duration is 41 s and the significance during T90 reaches 66 sigma. The light curve obtained by VZLUSAT-2 is available here: https://vzlusat2.konkoly.hu/static/share/GRB250119B_GCN_VZLUSAT2.pdf All VZLUSAT-2 detections are listed at: https://monoceros.physics.muni.cz/hea/VZLUSAT-2/ The GRB detectors on VZLUSAT-2 are a demonstration payload for a future CubeSat constellation (Werner et al. Proc. SPIE 2018). Two GRB modules of VZLUSAT-2 are placed in a perpendicular manner and each consists of a 75 x 75 x 5 mm3 CsI scintillator read out by a SiPM array, covering the energy range from ~30 keV to ~1000 keV. VZLUSAT-2 was launched on 2022 January 13 from Cape Canaveral.