GRB190114B

This page lists all entries on GRB190114B in GRBweb

Summary IPN Swift GCN 23686 GCN 23691 GCN 23694 GCN 23696 GCN 23703 GCN 23705 GCN 23713 GCN 23720 GCN 23721 GCN 23722 GCN 23723 GCN 23730 GCN 23743

Summary table
Variable Value Source
T0 19:31:12 UTC GCN_circulars,Swift Det
ra 174.8742° Swift
decl 18.8908° Swift
pos_error 2.98e-04° Swift
T90 26.5 s Swift
T90_start 19:31:12 UTC Swift
fluence 5.10e-07 erg/cm² Swift
T100 26.5 s
GBM_located False
mjd 58497.81333333333 GCN_circulars,Swift Det
IPN table
GRB_name GRB190114B
ra 174.8833°
decl 18.8833°
pos_error 5.00e-02°
Swift table
GRB_name GRB190114B
t_trigger 19:31:12 UTC
ra 174.8742°
decl 18.8908°
pos_error 2.98e-04°
T90 26.5 s
fluence 5.10e-07 erg/cm²
GCN 23686 table
GRB_name GRB190114B
GCN_number 23686
Detection_method Swift Det
t_trigger 19:31:12 UTC
ra 174.8830°
decl 18.8770°
Circular_text TITLE: GCN CIRCULAR NUMBER: 23686 SUBJECT: GRB 190114B: Swift detection of a burst DATE: 19/01/14 19:48:11 GMT FROM: Amy Lien at GSFC M. H. Siegel (PSU), D. N. Burrows (PSU), J.D. Gropp (PSU), J. A. Kennea (PSU), N. J. Klingler (PSU), H. A. Krimm (NSF/USRA), N. P. M. Kuin (UCL-MSSL), S. J. LaPorte (PSU), A. Y. Lien (GSFC/UMBC), M. J. Moss (George Washington University), K. L. Page (U Leicester), B. Sbarufatti (PSU) and A. Tohuvavohu (PSU) report on behalf of the Neil Gehrels Swift Observatory Team: At 19:31:12 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 190114B (trigger=883818). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 174.883, +18.877 which is RA(J2000) = 11h 39m 32s Dec(J2000) = +18d 52' 36" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a weak pulse with a duration of about 20 sec. Also, there is a possible precursor at ~T-75 s. The peak count rate was ~800 counts/sec (15-350 keV), at ~4 sec after the trigger. The XRT began observing the field at 19:33:49.6 UT, 157.5 seconds after the BAT trigger. Using promptly downlinked data we find a fading, uncatalogued X-ray source located at RA, Dec 174.87349, 18.89230 which is equivalent to: RA(J2000) = 11h 39m 29.64s Dec(J2000) = +18d 53' 32.3" with an uncertainty of 3.7 arcseconds (radius, 90% containment). This location is 63 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. A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 1.75 x 10^20 cm^-2 (Willingale et al. 2013). UVOT took a finding chart exposure of 250 seconds with the U filter starting 157 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of the XRT error circle. The typical 3-sigma upper limit has been about 19.2 mag. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle. The list of sources is typically complete to about 18.0 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.02. Burst Advocate for this burst is M. H. Siegel (siegel AT swift.psu.edu). 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 23691 table
GRB_name GRB190114B
GCN_number 23691
Detection_method Swift-XRT Det
ra 174.8742°
decl 18.8908°
Circular_text TITLE: GCN CIRCULAR NUMBER: 23691 SUBJECT: GRB 190114B: Enhanced Swift-XRT position DATE: 19/01/14 21:53:07 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 1925 s of XRT Photon Counting mode data and 2 UVOT images for GRB 190114B, 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 = 174.87422, +18.89079 which is equivalent to: RA (J2000): 11h 39m 29.81s Dec (J2000): +18d 53' 26.9" with an uncertainty of 2.3 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 23694 table
GRB_name GRB190114B
GCN_number 23694
Detection_method Optical
ra 174.8742°
decl 18.8911°
Circular_text TITLE: GCN CIRCULAR NUMBER: 23694 SUBJECT: GRB 190114B: BOOTES-4/MET optical afterglow detection DATE: 19/01/14 22:31:44 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia E. Fernandez-Garcia, Y.-D. Hu, X.-Y.Li, , A. Ayala, A. J. Castro-Tirado (IAA-CSIC), C. Perez del Pulgar, A. Castellon, I. Carrasco (Univ. de Malaga), and D. Xiong, Y. Fan, X. Zhao, J. Bai, C. Wang, Y. Xin (Yunnan Nacional Astronomical Observatory) on behalf of a larger collaboration, report: "Following the detection of GRB 190114B by Swift/BAT (Siegel et al. GCNC 23686), the 0.6m BOOTES-4/MET robotic telescope at Lijiang Astronomical Observatory (China) obtained follow-up observations starting at 19:53:24 UT (~0.37 hr after trigger). Within the enhaced Swift/XRT position (Goad et al. GCNC 23691) an optical source with a preliminary magnitude of 20.3 mag (clear filter) is detected, fading in brightness in the late-time images, which we suggest as the optical afterglow to GRB 190114B at coordinates (J2000) RA = 11:39:29.81, Dec =+18:53:28.1 (+/- 1"). Observations are ongoing."
GCN 23696 table
GRB_name GRB190114B
GCN_number 23696
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 23696 SUBJECT: GRB 190114B: Mondy optical afterglow detection DATE: 19/01/14 22:46:53 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Pozanenko (IKI), E. Klunko (ISTP), E. Mazaeva (IKI), A. Volnova (IKI), S. Belkin (IKI) report on behalf of IKI-FuN: We observed the field of the GRB 190114B (Siegel et al., GCN 23686) with AZT-33IK telescope of Sayan observatory (Mondy). We started observations on Jan. 14 (UT) 20:28:30, i.e. 57 minutes after burst trigger. Within the enhanced XRT position (Goad et al., GCN 23691) we detect the object which is absent in SDSS catalog. Coordinates of the object are (J2000) 11:39:29.84 +18:53:27.8 with uncertainty 0.5 arcsec in both coordinates. The brightens of the object is R ~ 20.1m at (UT) 20:28:30. We suggest the object is the afterglow of GRB 190114B. The photometry is based on nearby SDSS DR12 stars, Lupton transformation. .
GCN 23703 table
GRB_name GRB190114B
GCN_number 23703
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 23703 SUBJECT: GRB 190114B: GWAC-F60B upper limit DATE: 19/01/15 03:15:45 GMT FROM: L.P. Xin at NAOC L. P. Xin, Y. J. Xiao, P. P. Zhang, R. S. Zhang, J. Wang, J. Y. Wei, E. W. Liang, X. G. Wang, Y. G. Yang, X. M. Lu, L. Huang, H. B. Cai, Y. L. Qiu, Y. Xu, Y. J. Xiao, Y. T. Zheng, C. Wu, J. S. Deng, D. W. Xu, D. TURPIN, H. L. Li, and W. L. Dong, report: We started to observe GRB 190114B ( Siegel et al., GCN 23686 ) with GWAC-F60B 60cm optical telescope at 19:46:26 UT, Jan. 14th 2019, about 14 min after the burst. The afterglow reported by ( Goad et al., GCN 23691; Fernandez-Garcia et al., GCN 23694; Pozanenko et al., GCN 23696) was not detected in R band images. The upper limit is estimated to be about 18.3 mag calibrated by nearby USNO-B1.0 stars. GWAC-F60B is operated by Guangxi university and NAOC, CAS, at Xinglong observatory, China. The message may be cited.
GCN 23705 table
GRB_name GRB190114B
GCN_number 23705
Detection_method MITSuME
Circular_text TITLE: GCN CIRCULAR NUMBER: 23705 SUBJECT: GRB 190114B: MITSuME Akeno optical upper limits DATE: 19/01/15 05:48:16 GMT FROM: Ryosuke Itoh at Tokyo Institute of Tech. R. Itoh, K. L. Murata, Y. Tachibana, S. Harita, K. Morita, K. Shiraishi, K. Iida, M. Niwano, R. Adachi, M. Oeda, Y. Yatsu, and N. Kawai (Tokyo Tech) report on behalf of the MITSuME collaboration We searched for the optical counterpart of GRB 190114B (M. Siegel et al., GCN #23686) with the optical three color (g', Rc, and Ic) CCD cameras attached to the MITSuME 50 cm telescope at Akeno Observatory,Yamanashi, Japan. The observation started on 19:33:01 UT which corresponds to 109 sec after the trigger. We did not find any new point source within the enhanced XRT circle (Goad et al., GCN #23691; Fernandez-Garcia et al., GCN #23694; Pozanenko et al., GCN #23696; Xin et al., GCN #23703) in all three bands. We obtained following 5 sigma limits for the magnitudes. T0+[sec] MID-UT T-EXP[sec] g' Rc Ic ------------------------------------------------------------------------------------------------------- 109 19:37:35 480 >19.4 >18.7 >18.2 ------------------------------------------------------------------------------------------------------- T0+ : Elapsed time after the burst T-EXP: Total Exposure time We used UCAC-4 catalog for flux calibration.
GCN 23713 table
GRB_name GRB190114B
GCN_number 23713
Detection_method Optical
ra 174.8743°
decl 18.8912°
Circular_text TITLE: GCN CIRCULAR NUMBER: 23713 SUBJECT: GRB 190114B: NOT optical counterpart DATE: 19/01/15 12:53:20 GMT FROM: Jonatan Selsing at DARK/NBI J. Selsing (DAWN/NBI and DAWN/DTU), A. de Ugarte Postigo (HETH/IAA-CSIC and DARK/NBI), and S. Dyrbye (NOT), report on behalf of a larger collaboration: We have observed the optical afterglow of GRB GRB190114B (Siegel et al., GCN 23686; Goad et al., GCN 23691) at the 2.5-m Nordic Optical Telescope (NOT). We have obtained an griz-band imaging sequence using the ALFOSC instrument, with 3x300s exposure in gri-band and 5x200s in z-band. Observations began at 01:51:42 UT, on the night of the 14th of January, 6.3 hr after the BAT trigger. In the images we confirm the detection of the optical counterpart in Fernandez-Garcia et al. (GCN 23694) and Pozanenko et al. (GCN 23696) and report further fading. The source is located at: RA (J2000) = 11:39:29.823 DEC (J2000) = +18:53:28.19 with the astrometric solution calibrated against the 2MASS catalog. We calibrate the photometric zeropoints against the Pan-STARRS catalog and calculate the following magnitudes for the optical counterpart: g = 21.61 +- 0.13 AB mag r = 21.15 +- 0.09 AB mag i = 20.96 +- 0.04 AB mag z = 20.59 +- 0.08 AB mag
GCN 23720 table
GRB_name GRB190114B
GCN_number 23720
Detection_method Swift-UVOT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 23720 SUBJECT: GRB 190114B: Swift/UVOT Upper Limits DATE: 19/01/15 16:53:38 GMT FROM: Mike Siegel at PSU/Swift MOC M. H. Siegel (PSU) reports on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 190114B 158 s after the BAT trigger (Siegel et al., GCN Circ. 23686). No optical afterglow consistent with the enhanced XRT position (Goad et al. GCN Circ. 23691) or the position of the faint optical counterpart (Fernandez-Garcia et al., GCN Circ. 23694; Pozanenko et al., GCN Circ. 23696, Selsing et al. GCN Circ. 23713) 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 u_FC 158 408 246 >20.2 v 464 1976 175 >18.5 b 414 2075 214 >19.9 u 158 2050 568 >20.4 w1 513 2025 194 >19.7 m2 786 2000 117 >18.9 w2 440 2100 194 >19.8 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.02 in the direction of the burst (Schlegel et al. 1998).
GCN 23721 table
GRB_name GRB190114B
GCN_number 23721
Detection_method Swift-BAT Det
ra 174.8680°
decl 18.8820°
Circular_text TITLE: GCN CIRCULAR NUMBER: 23721 SUBJECT: GRB 190114B, Swift-BAT refined analysis DATE: 19/01/15 16:59:37 GMT FROM: Amy Lien at GSFC J. R. Cummings (CPI), S. D. Barthelmy (GSFC), H. A. Krimm (NSF/USRA), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. H. Siegel (PSU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (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 190114B (trigger #883818) (Siegel et al., GCN Circ. 23686). The BAT ground-calculated position is RA, Dec = 174.868, 18.882 deg which is RA(J2000) = 11h 39m 28.3s Dec(J2000) = +18d 52' 53.5" with an uncertainty of 2.3 arcmin, (radius, sys+stat, 90% containment). The partial coding was 63%. The mask-weighted light curve shows a weak pulse that starts at ~T0 and ends at ~T+30 s. The possible precursor seen at ~T-75 s (Siegel et al., GCN Circ. 23686) turns out to be purely instrumental and is not related to this GRB. T90 (15-350 keV) is 26.5 +- 6.7 sec (estimated error including systematics). The time-averaged spectrum from T-1.2 to T+27.9 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.98 +- 0.28. The fluence in the 15-150 keV band is 5.1 +- 1.0 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+3.62 sec in the 15-150 keV band is 0.5 +- 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/883818/BA/
GCN 23722 table
GRB_name GRB190114B
GCN_number 23722
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 23722 SUBJECT: GRB 190114B: optical afterglow observations in Mondy and Abastumani observatories DATE: 19/01/15 17:32:45 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), A. Pozanenko (IKI), E. Mazaeva (IKI), E. Klunko (ISTP), S. Belkin (IKI), R. Ya. Inasaridze (AbAO), V.R. Ayvazian (AbAO), G. V. Kapanadze (AbAO), report on behalf of IKI-FuN: We observed the field of the GRB 190114B (Siegel et al., GCN 23686) with AZT-33IK telescope of Sayan observatory (Mondy), and AS-32 (0.7m) telescope of Abastumani Observatory. The optical afterglow (Fernandez-Garcia et al., GCN 23694; Pozanenko et al., GCN 23696; Selsing et al., GCN 23713) is detected in stacked images. Preliminary photometry is following. Date UT start t-T0 Filter Exp. OT Err. Observatory (mid, days) (s) 2019-01-14 20:28:30 0.10233 R 30*120 19.87 0.06 Mondy 2019-01-15 01:04:51 0.24212 R 18*60 20.40 0.25 AbAO The photometry is based on nearby SDSS stars SDSS id R_Lupton J113927.36+185157.2 17.094 0.014 J113940.10+185315.3 17.015 0.015 J113939.20+185354.8 17.954 0.018 The photometry might be affected by a nearby galaxy (r'=20.534, z_ph = 0.32813+/-0.08585) at a distance of 5.6 arc seconds.
GCN 23723 table
GRB_name GRB190114B
GCN_number 23723
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 23723 SUBJECT: GRB 190114B: Liverpool Telescope near-IR observations DATE: 19/01/15 18:31:09 GMT FROM: Luca Izzo at IAA-CSIC M. Blazek, L. Izzo (HETH-IAA/CSIC) A. de Ugarte Postigo (DARK/NBI & HETH-IAA/CSIC), D. A. Kann, C. C. Thoene (HETH-IAA/CSIC) report: We observed the field of GRB 190114B (Siegel et al. GCN 23686) with the IO:I camera mounted on the 2-m Liverpool Telescope located in La Palma, Spain. Observations started on January 15th at 02:51:47 UT (7.34 hours after the GRB trigger) and we obtained a series of 10x60s images in the H filter. We detect the faint optical afterglow (Fernandez-Garcia et al. GCN 23694, Pozanenko et al. GCN 23696, Selsing et al. GCN 23713, Volnova et al., GCN 23722) for which we measure the following magnitude: H(AB) = 20.35 +- 0.34 mag The calibration was performed using four nearby 2MASS stars.
GCN 23730 table
GRB_name GRB190114B
GCN_number 23730
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 23730 SUBJECT: GRB 190114B: Swift-XRT refined Analysis DATE: 19/01/16 02:09:21 GMT FROM: Phil Evans at U of Leicester A. D'Ai (INAF-IASFPA), D.N. Burrows (PSU), A. Tohuvavohu (PSU), S. J. LaPorte (PSU), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), J.P. Osborne (U. Leicester), A. Melandri (INAF-OAB), P. D'Avanzo (INAF-OAB) and M.H. Siegel report on behalf of the Swift-XRT team: We have analysed 2.4 ks of XRT data for GRB 190114B (Siegel et al. GCN Circ. 23686), from 165 s to 104.3 ks after the BAT trigger. The data are entirely in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Goad et al. (GCN Circ. 23691). The light curve can be modelled with a power-law decay with a decay index of alpha=2.1 (+/-0.4). A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 1.99 (+0.34, -0.14). The best-fitting absorption column is consistent with the Galactic value of 1.7 x 10^20 cm^-2 (Willingale et al. 2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.2 x 10^-11 (3.4 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 1.7 (+/-4.8) x 10^20 cm^-2 Galactic foreground: 1.7 x 10^20 cm^-2 Excess significance: <1.6 sigma Photon index: 1.99 (+0.34, -0.14) The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00883818. This circular is an official product of the Swift-XRT team.
GCN 23743 table
GRB_name GRB190114B
GCN_number 23743
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 23743 SUBJECT: GRB 190114B: continued optical observations in Mondy DATE: 19/01/16 17:06:37 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), A. Pozanenko (IKI), E. Mazaeva (IKI), E. Klunko (ISTP), S. Belkin (IKI) report on behalf of IKI-GRB-FuN: We observed the field of the GRB 190114B (Siegel et al., GCN 23686) with AZT-33IK telescope of Sayan observatory (Mondy) starting on Jan. 15 (UT) 21:06:04. The optical afterglow (e.g. Fernandez-Garcia et al., GCN 23694; Pozanenko et al., GCN 23696; Selsing et al., GCN 23713) is marginally detected in a stacked image. Preliminary photometry is following. Date UT start t-T0 Filter Exp. OT Err. (mid, days) (s) 2019-01-15 21:06:04 1.08672 R 30*120 22.2 0.35 The photometry is based on nearby SDSS stars SDSS id R_Lupton J113927.36+185157.2 17.094 0.014 J113940.10+185315.3 17.015 0.015 J113939.20+185354.8 17.954 0.018