GRB191016A

This page lists all entries on GRB191016A in GRBweb

Summary IPN Swift GCN 26008 GCN 26010 GCN 26011 GCN 26012 GCN 26013 GCN 26015 GCN 26017 GCN 26018 GCN 26019 GCN 26024 GCN 26026 GCN 26028 GCN 26176

Summary table
Variable Value Source
T0 4:09:00 UTC GCN_circulars,Swift Det
ra 30.2695° Swift
decl 24.5099° Swift
pos_error 6.47e-05° Swift
T90 219.7 s Swift
T90_start 4:09:00 UTC Swift
fluence 6.50e-06 erg/cm² Swift
T100 219.7 s
GBM_located False
mjd 58772.17291666667 GCN_circulars,Swift Det
IPN table
GRB_name GRB191016A
ra 30.2958°
decl 24.5000°
pos_error 5.00e-02°
Swift table
GRB_name GRB191016A
t_trigger 4:09:00 UTC
ra 30.2695°
decl 24.5099°
pos_error 6.47e-05°
T90 219.7 s
fluence 6.50e-06 erg/cm²
GCN 26008 table
GRB_name GRB191016A
GCN_number 26008
Detection_method Swift Det
t_trigger 4:09:00 UTC
ra 30.2960°
decl 24.5010°
Circular_text TITLE: GCN CIRCULAR NUMBER: 26008 SUBJECT: GRB 191016A: Swift detection of a burst DATE: 19/10/16 04:25:46 GMT FROM: David Palmer at LANL J.D. Gropp (PSU), N. J. Klingler (PSU), A. Y. Lien (GSFC/UMBC), M. J. Moss (GWU), D. M. Palmer (LANL) and B. Sbarufatti (PSU) report on behalf of the Neil Gehrels Swift Observatory Team: At 04:09:00 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 191016A (trigger=929744). Swift did not immediately slew due to an observing constraint. The BAT on-board calculated location is RA, Dec 30.296, +24.501 which is RA(J2000) = 02h 01m 11s Dec(J2000) = +24d 30' 03" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a complex structure structure with a duration of at least 200 sec. The peak count rate was ~1500 counts/sec (15-350 keV), at ~-6 sec after the trigger. Due to a Moon observing constraint, Swift cannot slew to the BAT position until 15:17 UT on 2019 October 16. There will thus be no XRT or UVOT data for this trigger before this time. This source lies within the current (Sector 17) field-of-view of TESS camera 1. Burst Advocate for this burst is J.D. Gropp (jdg44 AT 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/)
GCN 26010 table
GRB_name GRB191016A
GCN_number 26010
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 26010 SUBJECT: GRB 191016A: COATLI Optical Observations and Detection of the Afterglow DATE: 19/10/16 05:03:38 GMT FROM: Alan M Watson at UNAM Alan M. Watson (UNAM), Nat Butler (ASU), Rosa L. Becerra (UNAM), Diego González (UNAM), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Margarita Pereyra (UNAM), and Eleonora Troja (GSFC) report: Alan M. Watson (UNAM), Nat Butler (ASU), Rosa L. Becerra (UNAM), Diego González (UNAM), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Margarita Pereyra (UNAM), and Eleonora Troja (GSFC) report: We observed the field of GRB 191016A (Gropp et al., GCN Circ. Gropp) with the COATLI 50-cm telescope and interim imager at the Observatorio Astronómico Nacional on the Sierra de San Pedro Mártir (http://coatli.astroscu.unam.mx) from 2019-10-16 04:40:19 (378.7 seconds after the trigger and 21.8 seconds after the alert) to 04:49, obtaining a total of 1200 seconds of exposure in the w filter. We detect a bright uncataloged source at 02:01:04.75 +24:30:36.8 J2000 (+/- 0.5 arcsec), about 91 arcsec from the BAT position. The source rises from w = 16.5 to w = 15.0 before fading. We suggest this is the afterglow. Our w magnitudes are calibrated against the Pan-STARRS1 catalog, are on an approximate AB system (Becerra et al., 2019, ApJ, 872, 118), and are not corrected for Galactic extinction in the direction of the GRB. Observations are continuing. We thank the COATLI technical team and the staff of the Observatorio Astronómico Nacional.
GCN 26011 table
GRB_name GRB191016A
GCN_number 26011
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 26011 SUBJECT: GRB 191016A: KAIT Optical Afterglow Confirmation DATE: 19/10/16 19:32:11 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 191016A (Gropp et al., GCN 26008) starting at ~1.6 hours after the burst. We obtained 33x60s images in the clear (roughly R) filter. We detect and thus confirm the optical afterglow at the position reported by Watson et al. (GCN 26010) in our co-added image. Due to a strong moon light gradient in our images, we are unable to measure a reliable magnitude of the target. We estimate the afterglow is between 16.5 to 17.5 mag at a mid-time of ~2.0 hours after the burst.
GCN 26012 table
GRB_name GRB191016A
GCN_number 26012
Detection_method Swift-BAT Det
ra 30.2680°
decl 24.5080°
Circular_text TITLE: GCN CIRCULAR NUMBER: 26012 SUBJECT: GRB 191016A: Swift-BAT refined analysis DATE: 19/10/16 21:40:40 GMT FROM: Sibasish Laha at GSFC S. D. Barthelmy (GSFC), J. R. Cummings (CPI), J.D. Gropp (PSU), H. A. Krimm (NSF), S. Laha (GSFC/UMBC), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team): Using the data set from T-240 to T+962 sec from the recent telemetry downlink, we report further analysis of BAT GRB 191016A (trigger #929744) (Gropp et al., GCN Circ. 26008). The BAT ground-calculated position is RA, Dec = 30.268, 24.508 deg which is RA(J2000) = 02h 01m 04.4s Dec(J2000) = +24d 30' 30.4" with an uncertainty of 1.5 arcmin, (radius, sys+stat, 90% containment). The partial coding was 64%. The mask weighted light curve shows two overlapping pulses. Overall structure starts at ~ T-40 s and lasts till ~ T+420 s. The two peaks occur at ~ T-10 s and ~ T+35 s, respectively. T90 (15-350 keV) is 219.70 +- 183.35 sec (estimated error including systematics). The time-averaged spectrum from T-42.82 to T+422.61 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.55 +- 0.09. The fluence in the 15-150 keV band is 6.5 +- 0.4 x 10^-06 erg/cm2. The 1-sec peak photon flux measured from T-7.75 sec in the 15-150 keV band is 1.5 +- 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/929744/BA/
GCN 26013 table
GRB_name GRB191016A
GCN_number 26013
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 26013 SUBJECT: GRB 191016A: Optical limit by Ondrejov D50 DATE: 19/10/16 21:55:29 GMT FROM: Martin Jelinek at Astro.Inst-AVCR,Ondrejov Martin Jelinek and Jan Strobl (ASU CAS Ondrejov, CZ) report: We observed GRB 191016A (Gropp et al. GCNC 26008) with the 50 cm robotic telescope (D50) of Ondrejov observatory in the Czech Republic, obtaining a series of 120s images starting at 17:55UT, i.e. 13.6h post trigger. We do not detect the optical afterglow (Watson, GCNC 26010; Zheng et al., GCNC 26011 and others) in a combined 60x120s I-band image with exposure mean time 14.6h after the GRB. A rough conservative detection limit of the image is I(Vega) > 19.5; as mentioned before by Zheng et al., the proximity of Moon makes any photometric measurement difficult.
GCN 26015 table
GRB_name GRB191016A
GCN_number 26015
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 26015 SUBJECT: GRB 191016A: RATIR Optical and NIR Observations DATE: 19/10/17 01:31:15 GMT FROM: Alan M Watson at UNAM Alan M. Watson (UNAM), Nat Butler (ASU), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), Ori Fox (STScI), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (UVI), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), Jesús González (UNAM), Carlos Román-Zúñiga (UNAM), Harvey Moseley (GSFC), John Capone (UMD), V. Zach Golkhou (U. Wash.), and Vicki Toy (UMD) report: We observed the field of GRB 191016A (Gropp et al., GCN Circ. 26008) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astronómico Nacional on Sierra San Pedro Mártir from 2019/10 16.18 to 2019/10 16.26 UTC (0.12 to 2.13 hours after the BAT trigger), obtaining a total of 0.99 hours exposure in the r and i bands and 0.54 hours exposure in the Z, Y, J, and H bands. We detect a source coincident with the COATLI afterglow candidate (Watson et al., GCN Circ. 26010). In comparison with the SDSS DR9 and 2MASS catalogs, we obtain the following detections: r = 16.42 +/- 0.00 i = 16.16 +/- 0.00 Z = 15.91 +/- 0.01 Y = 15.78 +/- 0.01 J = 15.42 +/- 0.01 H = 15.10 +/- 0.01 These magnitudes are in the AB system and are not corrected for Galactic extinction in the direction of the GRB. The light curve shows similar behaviour to that reported by Watson et al. We see the source rise from r = 16.8 to r = 15.3 before falling to r = 17 at the end of these observations. In subsequent observations we added images in the g filter and determined that the g - r color is 0.44 +/- 0.01. This strongly suggests that the GRB is at z < 4 (Littlejohns et al. 2014). We thank the staff of the Observatorio Astronómico Nacional in San Pedro Mártir.
GCN 26017 table
GRB_name GRB191016A
GCN_number 26017
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 26017 SUBJECT: GRB 191016A: early time BOOTES Network and follow-up 1.5m OSN optical observations DATE: 19/10/17 09:58:20 GMT FROM: Alberto J. Castro-Tirado at IAA-CSIC Y.-D. Hu, E. Fernandez-Garcia, A. J. Castro-Tirado, I. Olivares, F. Rendon, A. Sota (IAA-CSIC), C. Perez del Pulgar, A. Castellon, I. M. Carrasco, S. Castillo (Univ. de Malaga), D. Hiriart, W. H. Lee (UNAM), I. H. Park (SKKU) and M. D. Caballero-Garcia (ASU-CAS, CZ) on behalf of a larger collaboration, report: Following the detection of GRB 191016A by Swift (Gropp et al., GCNC 26008), the BOOTES Network robotic telescopes automatically responded to this burst at the different astronomical stations worlwide. The 60cm BOOTES-5/JGT robotic telescope at Observatorio Astronomico Nacional in San Pedro Martir (Mexico) gathered images (clear-filter) starting at 04:15:06U T (6.0 min after the GRB onset). The 60cm BOOTES-2/TELMA robotic telescope at IHSM La Mayora (UMA-CSIC) in Algarrobo Costa (Spain) obtained images (i-band filter) starting at 04:15:15 UT (6.3 min after the GRB onset). The 30cm BOOTES-1B robotic telescope at INTA-CEDEA in Mazagon (Huelva), southern Spain, imaged the field (clear filter) starting at 04:16:32 UT (7.5 min after the GRB onset). The optical afterglow (Watson et al. GCNC 26010, Zheng et al. GCNC 26011, Watson et al. GCNC 26015) is detected in all three BOOTES stations. Detailed data analysis is ongoing. Follow-up observations were also triggered at the 1.5m OSN telescope in Observatorio de Sierra Nevada, Granada (Spain) starting at 19:56 UT (15.8 h after the GRB trigger). The afterglow was still detected in the R-band, for which we measure R = 19.8 +/- 0.1 (preliminary). We thank the staff at Observatorio Astronomico Nacional in San Pedro Martir, IHSM La Mayora, INTA-CEDEA and Observatorio de Sierra Nevada for the excellent support.
GCN 26018 table
GRB_name GRB191016A
GCN_number 26018
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 26018 SUBJECT: GRB 191016A: AZT-20 (Assy observatory) optical photometry DATE: 19/10/17 10:18:43 GMT FROM: Alexei Pozanenko at IKI, Moscow V. Kim (AFIF, Pulkovo Observatory) A. Pozanenko (IKI), M. Krugov (AFIF), I. Reva (AFIF), E. Mazaeva (IKI), A. Volnova (IKI) report on behalf of larger GRB IKI FuN collaboration: We observed the field of the GRB 191016A (Gropp al., GCN 26008) with AZT-20 telescope of Assy-Turgen observatory (MPC observatory code 217) starting on Oct. 16 (UT) 14:58:49 in r'-filter. We clearly detect the optical afterglow (Watson al., GCN 26010; Zheng al., GCN 26011; Watson al., GCN 26015; Hu et al., GCN 26017). Preliminary photometry of the afterglow is following. Date UT start t-T0 Filter Exp. OT Err. (mid, days) (s) 2019-10-16 14:58:49 0.48336 r' 120*30 20.6 0.15 The photometry is based on the nearby USNO-B1 stars and BRI transformations to r'. The photometry in agreement with non detection of the optical afterglow by Jelinek et al. (GRB 26013).
GCN 26019 table
GRB_name GRB191016A
GCN_number 26019
Detection_method MITSuME
Circular_text TITLE: GCN CIRCULAR NUMBER: 26019 SUBJECT: GRB191016A: MITSuME Okayama optical observation DATE: 19/10/17 11:15:15 GMT FROM: Sayaka Toma at Tokyo Institute of Technology S. Toma, M. Niwano, R. Adachi, K. L. Murata, M. Oeda, K.Shiraishi, K. Iida, F. Ogawa, R. Hosokawa, Y. Yatsu, and N. Kawai (TokyoTech) report on behalf of the MITSuME collaboration: We searched for the optical counterpart of GRB 191016A (J.D. Gropp et al., GCN Circular #26008) with the optical three color (g', Rc, and Ic) CCD cameras attached to the MITSuME 50 cm telescope of Okayama Astrophysical Observatory, Okayama, Japan. The observation started on 09:37:49.50 UT which corresponds to 5.5 hours after the trigger. We detected the point source at the position consistent with the afterglow detected previously (Alan M. Watson et al. GCN #26010). The measured magnitudes and 3-sigma limit are listed as follows. T0+[sec] MID-UT T-EXP[sec] g' Rc Ic ——————————————————————————————————————————————————— 20794 13:31:46 20040 19.5+/-0.4 > 19.0 18.6+/-0.2 ------------------------------------------------------------------------------------------------------- T0+ : Elapsed time after the burst T-EXP: Total Exposure time We used GSC2.3 and UCAC4 catalog for flux calibration. The magnitudes are expressed in the Vega system.
GCN 26024 table
GRB_name GRB191016A
GCN_number 26024
Detection_method Swift-UVOT Det
ra 30.2695°
decl 24.5099°
Circular_text TITLE: GCN CIRCULAR NUMBER: 26024 SUBJECT: GRB 191016A: Swift/UVOT Detection DATE: 19/10/17 23:13:53 GMT FROM: Mike Siegel at PSU/Swift MOC M. H. Siegel and J. D. Gropp (PSU) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 191016A 45 ks after the BAT trigger (Gropp et al., GCN Circ. 26008). A source is detected consistent with the XRT position and the optical source reported by Watson et al. (GCN Circ. 26010, 26015), Zheng and Filippenko (GCN Circ. 26011), Hu et al. (GCN Circ. 26017), Kim et al. (GCN Circ. 26018) and Toma et al. (GCN Circ. 26019). The preliminary UVOT position is: RA (J2000) = 02:01:04.68 = 30.26948 (deg.) Dec (J2000) = +24:30:35.7 = 24.50990 (deg.) with an estimated uncertainty of 0.5 arc sec. (radius, 90% confidence). Preliminary detections and 3-sigma upper limit 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 45023 46878 1822 21.09+/-0.17 white 50812 52638 1794 21.21+/-0.19 white 56420 56938 506 >21.23 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.09 in the direction of the burst (Schlegel et al. 1998).
GCN 26026 table
GRB_name GRB191016A
GCN_number 26026
Detection_method Swift-XRT Other
ra 30.2693°
decl 24.5099°
Circular_text TITLE: GCN CIRCULAR NUMBER: 26026 SUBJECT: GRB 191016A: Swift-XRT afterglow detection DATE: 19/10/18 00:12:22 GMT FROM: Boris Sbarufatti at PSU K.L. Page (U. Leicester), A.P. Beardmore (U. Leicester), M. Perri (ASDC), V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), B. Sbarufatti (PSU), D.N. Burrows (PSU), J. D. Gropp (PSU) and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team: Swift-XRT has performed follow-up observations of the Swift/BAT-detected burst GRB 191016A (WeiKang Zheng et al. GCN Circ. 26012), collecting 4.2 ks of Photon Counting (PC) mode data between T0+45.0 ks and T0+56.9 ks. An uncatalogued X-ray source is detected consistent with being within 296 arcsec of the Swift/BAT position and is above the RASS limit, and is therefore likely the GRB afterglow. Using 3470 s of PC mode data and 3 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 = 30.26933, +24.50988 which is equivalent to: RA (J2000): 02h 01m 04.64s Dec(J2000): +24d 30' 35.6" with an uncertainty of 1.9 arcsec (radius, 90% confidence). This position is 93 arcsec from the Swift/BAT position. The light curve can be modelled with a power-law decay with a decay index of alpha=1.8 (+1.5, -0.5). A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 1.9 (+0.5, -0.4). The best-fitting absorption column is 1.4 (+1.7, -0.4) x 10^21 cm^-2, consistent with the Galactic value of 1.0 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 3.4 x 10^-11 (4.3 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 1.4 (+1.7, -0.4) x 10^21 cm^-2 Galactic foreground: 1.0 x 10^21 cm^-2 Excess significance: <1.6 sigma Photon index: 1.9 (+0.5, -0.4) The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00929744. The results of the full analysis of the XRT observations are available at https://www.swift.ac.uk/ToO_GRBs/00929744. This circular is an official product of the Swift-XRT team.
GCN 26028 table
GRB_name GRB191016A
GCN_number 26028
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 26028 SUBJECT: GRB 191016A: REM optical observations DATE: 19/10/18 13:44:05 GMT FROM: Andrea Melandri at INAF-OAB A. Melandri, S.Covino, D. Fugazza, P. D’Avanzo (INAF/OAB), on behalf of the REM team, report: We observed the field of GRB191016A (Gropp et al. GCN 26008) with the REM 60cm robotic telescope located at the ESO premise of La Silla (Chile). The observations were performed starting from about 6 min after the event and were carried in the g, r, i, z bands. The optical counterpart (Watson et al. GCN 26010; Zheng & Filippenko GCN 26011; Watson et al. GCN 26015; Hu et al. GCN 26017; Kim et al. 26018; Toma et al. GCN 26019; Siegel & Gropp GCN 26024) is detected in the optical bands. A preliminary photometry gives: r = 16.1 +- 0.2 at 13 min from the GRB time. Magnitudes are calibrated against the APASS catalogue.
GCN 26176 table
GRB_name GRB191016A
GCN_number 26176
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 26176 SUBJECT: GRB191016A GROND observations DATE: 19/11/05 15:45:33 GMT FROM: Patricia Schady at Swift P. Schady (Univ. of Bath) and J. Bolmer (MPE Garching) report: We observed the field of GRB 161019A (Swift trigger 929744; Gropp et al., GCN #26008) 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 04:19 UT on 2019-10-16, 10 min after the GRB trigger. They were performed at an average seeing of 1.7" and at an average airmass of 1.7. We detect a bright point source in all optical and near-infrared filters consistent with the reported optical afterglow position (Watson et al., GCN #26010; Siegel et al., GCN #26024). Based on the first 3.3 min of total exposures in g'r'i'z'JHK, we estimate preliminary AB magnitudes of g' = 16.81 +/- 0.03 r' = 16.33 +/- 0.03 i' = 15.84 +/- 0.04 z' = 15.51 +/- 0.04 J = 15.28 +/- 0.05 H = 14.80 +/- 0.05 K = 14.83 +/- 0.08 Given magnitudes are calibrated against SDSS and 2MASS field stars and are not corrected for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V)=0.09 in the direction of the burst (Schlafly & Finkbeiner 2011). We acknowledge the excellent support provided by the telescope operator at La Silla.