GRB111117A

This page lists all entries on GRB111117A in GRBweb

Summary Fermi GBM IPN Swift GCN 12559 GCN 12560 GCN 12561 GCN 12562 GCN 12563 GCN 12565 GCN 12566 GCN 12567 GCN 12568 GCN 12569 GCN 12570 GCN 12571 GCN 12572 GCN 12573 GCN 12574 GCN 12575 GCN 12576 GCN 12577 GCN 12580 GCN 12586 GCN 12588 GCN 12625

Summary table
Variable Value Source
GRB_name_Fermi GRB111117510
T0 12:13:41 UTC GCN_circulars,Swift Det
ra 12.7042° IPN
decl 23.0167° IPN
pos_error 5.00e-02° IPN
T90 0.432 s Fermi_GBM
T90_error 0.082 s Fermi_GBM
T90_start 12:13:41.965 UTC Fermi_GBM
fluence 5.64e-07 erg/cm² Fermi_GBM
fluence_error 1.28e-08 erg/cm² Fermi_GBM
redshift 2.2110 IPN
T100 1.397 s
GBM_located False
mjd 55882.50950231482 GCN_circulars,Swift Det
Fermi GBM table
GRB_name_Fermi GRB111117510
trigger_name bn111117510
ra 12.6925°
decl 23.0108°
pos_error 3.81e+00°
datum 2011-11-17
t_trigger 12:13:42.029 UTC
T90 0.432 s
T90_error 0.082 s
T90_start 12:13:41.965 UTC
fluence 5.64e-07 erg/cm²
fluence_error 1.28e-08 erg/cm²
flux_1024 2.60e+00 erg/cm²/s
flux_1024_error 1.79e-01 erg/cm²/s
flux_1024_time -1.92e-01 erg/cm²/s
flux_64 1.09e+01 erg/cm²/s
flux_64_error 1.06e+00 erg/cm²/s
IPN table
GRB_name GRB111117A
ra 12.7042°
decl 23.0167°
pos_error 5.00e-02°
redshift 2.2110
Swift table
GRB_name GRB111117A
t_trigger 12:13:41 UTC
pos_error 4.66e+04°
T90 0.47 s
fluence 1.40e-07 erg/cm²
GCN 12559 table
GRB_name GRB111117A
GCN_number 12559
Detection_method Swift Det
t_trigger 12:13:41 UTC
ra 12.7020°
decl 23.0210°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12559 SUBJECT: GRB 111117A: Swift detection of a short hard burst DATE: 11/11/17 12:27:17 GMT FROM: David Burrows at PSU/Swift V. Mangano (INAF-IASFPA), W. H. Baumgartner (GSFC/UMBC), A. P. Beardmore (U Leicester), D. N. Burrows (PSU), S. Campana (INAF-OAB), J. R. Cummings (NASA/UMBC), V. D'Elia (ASDC), P. A. Evans (U Leicester), N. Gehrels (NASA/GSFC), S. T. Holland (CRESST/USRA/GSFC), H. A. Krimm (CRESST/GSFC/USRA), O. M. Littlejohns (U Leicester), F. E. Marshall (NASA/GSFC), P. T. O'Brien (U Leicester), S. R. Oates (UCL-MSSL), C. Pagani (U Leicester), K. L. Page (U Leicester), D. M. Palmer (LANL), E. Sonbas (GSFC/USRA/Adiyaman Univ.), R. L. C. Starling (U Leicester), C. A. Swenson (PSU) and E. Troja (NASA/GSFC/ORAU) report on behalf of the Swift Team: At 12:13:41 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 111117A (trigger=507901). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 12.702, +23.021 which is RA(J2000) = 00h 50m 49s Dec(J2000) = +23d 01' 16" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a double-peaked structure with a duration of about 0.6 sec. The peak count rate was ~6140 counts/sec (15-350 keV), at ~0 sec after the trigger. The XRT began observing the field at 12:14:58.7 UT, 76.8 seconds after the BAT trigger. Using promptly downlinked data we find an uncatalogued X-ray source with an enhanced position: RA, Dec 12.6925, 23.0103 which is equivalent to: RA(J2000) = 00h 50m 46.19s Dec(J2000) = +23d 00' 36.9" with an uncertainty of 2.6 arcseconds (radius, 90% containment). This location is 50 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. We cannot determine whether the source is fading at the present time. A power-law fit to a spectrum formed from promptly downlinked event data gives a column density in excess of the Galactic value (3.70 x 10^20 cm^-2, Kalberla et al. 2005), with an excess column of 3 (+2.73/-2.30) x 10^21 cm^-2 (90% confidence). UVOT took a finding chart exposure of 250 seconds with the U filter starting 136 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 0.03. Burst Advocate for this burst is V. Mangano (vanessa AT ifc.inaf.it). 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 12560 table
GRB_name GRB111117A
GCN_number 12560
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 12560 SUBJECT: GRB 111117A: GMG upper limit DATE: 11/11/17 16:54:52 GMT FROM: Dong Xu at Weizmann Inst X.-H. Zhao (YNAO), D. Xu (WIS), J.-R. Mao, J.-M. Bai (YNAO) report: We observed the field of GRB 111117A (Mangano et al., GCN 12559) at the 2.4m Gao-Mei-Gu telescope (GMG) equipped with YFOSC. The weather was not optimistic but 1x600s R-band and 3x600s z-band images were obtained, starting at 14:11:16 UT, 17 Nov. 2011 (i..e, 1.960 hrs after the burst). No afterglow was detected within the XRT error circle for both filters, to a 3sigma upper limit of R~22.2 mag, calibrated with the USNO B1 catalog. We thank Gui-Hua He, Jian-Quan He, and Yu-Xin Xin for performing these observations.
GCN 12561 table
GRB_name GRB111117A
GCN_number 12561
Detection_method Swift-BAT Det
ra 12.7020°
decl 23.0210°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12561 SUBJECT: GRB 111117A: Swift-BAT refined analysis of a short hard burst DATE: 11/11/17 20:12:02 GMT FROM: Scott Barthelmy at NASA/GSFC T. Sakamoto (GSFC/UMBC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC), V. Mangano (INAF-IASFPA), J. Norris (BSU), D. M. Palmer (LANL), G. Sato (ISAS), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU) (i.e. the Swift-BAT team): Using the data set from T-240 to T+395 sec from recent telemetry downlinks, we report further analysis of BAT GRB 111117A (trigger #507901) (Mangano, et al., GCN Circ. 12559). The BAT ground-calculated position is RA, Dec = 12.702, 23.021 deg, which is RA(J2000) = 00h 50m 49.9s Dec(J2000) = +23d 00' 11.0" with an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%. The mask-weighted light curve shows two peaks, the first starts at ~T+0.00, peaks at ~T+0.15 and ends at ~T+0.30 sec. The second starts at ~T+0.35, peaks at ~T+0.50, and ends at ~T+0.60 sec. T90 (15-350 keV) is 0.47 +- 0.09 sec (estimated error including systematics). The spectral lag is 0.6 +/- 2.4 msec using the 100-350 and 25-50 keV bands with 4-ms binning of the raw lightcurves. This clearly indicates a short burst. The time-averaged spectrum from T-0.016 to T+0.520 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 0.65 +- 0.22. The fluence in the 15-150 keV band is 1.40 +- 0.18 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+0.00 sec in the 15-150 keV band is 1.35 +- 0.20 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/507901/BA/ [GCN OPS NOTE(17nov11): Per author's request, the missing position uncertainty was added (1.7 arcmin).]
GCN 12562 table
GRB_name GRB111117A
GCN_number 12562
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12562 SUBJECT: GRB 111117A: Chandra ToO observation scheduled DATE: 11/11/17 21:07:23 GMT FROM: Takanori Sakamoto at NASA/GSFC T. Sakamoto (GSFC/UMBC), N. Gehrels (GSFC), E. Troja (NASA/GSFC/ORAU), J. Norris (BSU), S. D. Barthelmy (GSFC), J. L. Racusin (GSFC), N. Kawai (Tokyo Tech), A. Fruchter (STScI) The Chandra ToO observation has been approved for GRB 111117A (Mangano et al., GCN Circ. 12559; Sakamoto et al., GCN Circ. 12561). The observation has been tentatively scheduled on November 20 12:48 UT for 20 ksec. This is the approved ToO program in AO-13 to identify a Swift short GRB afterglow in X-rays by a sub-arcsecond position from Chandra (PI: Sakamoto, #501616). The main goal is to identify the host galaxy of GRB 111117A by the sub-arcsecond X-ray position which is very likely to be able to obtain from the Chandra observation. Therefore, we strongly encourage deep optical observations of the field.
GCN 12563 table
GRB_name GRB111117A
GCN_number 12563
Detection_method Swift Other
ra 12.6928°
decl 23.0112°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12563 SUBJECT: GRB 111117A: NOT observations DATE: 11/11/17 22:57:59 GMT FROM: Antonio Deugarte at IAA-CSIC Michael I. Andersen (DARK), Antonio de Ugarte Postigo (IAA-CSIC and DARK), Giorgos Leloudas (DARK), Johan P. U. Fynbo (DARK) report on behalf of a larger collaboration: Using ALFOSC on the Nordic Optical Telescope (NOT) we have obtained R-band (6 x 300 s) imaging of the field of the Swift GRB 111117A (Mangano et al., GCN 12559), starting on 2011 November 20:49:50 UT (mean epoch 7.88 hours after the burst trigger). The seeing during the observations was around 0.9". In a preliminary reduction we detect a source with a magnitude of R=23.1 +/- 0.3 (based on USNO-B1.0 photometry) at the coordinates (J2000 +/- 1"): R.A.: 00:50:46.28 Dec.: +23:00:40.3 This is formally 3.6" from the XRT position and thus outside the XRTerror circle reported in GCN 12559. However we note that it is within the automatically generated SPER error box (http://www.swift.ac.uk/sper/507901/). We therefore suggest that this object is the host galaxy or afterglow of GRB 111117A. We are grateful to the NOT observers, Kristian Vida (Konkoly Observatory) and Heidi Korhonen (U. Copenhagen) for obtaining these observations.
GCN 12565 table
GRB_name GRB111117A
GCN_number 12565
Detection_method Swift-XRT Other
ra 12.6926°
decl 23.0109°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12565 SUBJECT: GRB 111117A: Swift-XRT refined Analysis DATE: 11/11/18 01:27:07 GMT FROM: Phil Evans at U of Leicester A. Melandri (INAF-OAB), B. Sbarufatti (INAF-OAB/IASFPA), G. Stratta (ASDC), J.A. Kennea (PSU), M.C. Stroh (PSU), D.N. Burrows (PSU), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), O.M. Littlejohns (U. Leicester) and V. Mangano report on behalf of the Swift-XRT team: We have analysed 7.0 ks of XRT data for GRB 111117A (Mangano et al. GCN Circ. 12559), from 89 s to 30.1 ks after the BAT trigger. The data comprise 18 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The best available XRT position (using the promptly downlinked event data, the XRT-UVOT alignment and matching UVOT field sources to the USNO-B1 catalogue) is RA, Dec = 12.6926, 23.0109 which is equivalent to: RA (J2000): 00 50 46.22 Dec(J2000): +23 00 39.2 with an uncertainty of 2.1 arcsec (radius, 90% confidence). The light curve can be modelled with a power-law decay with a decay index of alpha=1.33 (+0.14, -0.13). A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 2.2 (+/-0.4). The best-fitting absorption column is 2.2 (+1.1, -1.0) x 10^21 cm^-2, in excess of the Galactic value of 3.7 x 10^20 cm^-2 (Kalberla et al. 2005). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.5 x 10^-11 (5.8 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 2.2 (+1.1, -1.0) x 10^21 cm^-2 Galactic foreground: 3.7 x 10^20 cm^-2 Excess significance: 3.4 sigma Photon index: 2.2 (+/-0.4) The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00507901. This circular is an official product of the Swift-XRT team.
GCN 12566 table
GRB_name GRB111117A
GCN_number 12566
Detection_method Other
ra 12.6927°
decl 23.0114°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12566 SUBJECT: GRB111117A: Magellan IMACS observations DATE: 11/11/18 04:35:38 GMT FROM: Wen-fai Fong at CFA W. Fong, N. Sanders, D. Milisavljevic and E. Berger (Harvard) report: We imaged the location of the short GRB 111117A (GCN 12559) with IMACS on the Magellan/Baade 6.5-m telescope starting on 2011 November 18.07 UT (13.5 hrs post-burst) in 1.0" seeing. In a stack of 4x300 sec r-band exposures, we detect an extended source at the edge of the enhanced XRT error circle (GCN 12565) at a position of: RA = 00:50:46.24 Dec = +23:00:41.04 (J2000) with an uncertainty of ~0.5" in each coordinate. This is consistent with the source position reported by Andersen et al. (GCN 12563, R = 23.1 +/- 0.3). We calculate the extended source to have a magnitude of r = 23.9 +/- 0.15. The fainter magnitude implies that the source reported by Andersen et al. has faded between 7.9 and 13.5 hours post-burst.
GCN 12567 table
GRB_name GRB111117A
GCN_number 12567
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 12567 SUBJECT: GRB 111117A: Gemini host observation DATE: 11/11/18 05:36:11 GMT FROM: Antonino Cucchiara at LBNL A. Cucchiara (UCSC/UCO Lick) and S. B. Cenko (UC Berkeley) report on behalf of a large collaboration: On November 18.07 UT we observed the field of the short-hard GRB 111117A (Mangano et al., GCN 12559) with the Gemini-South telescope equipped with the GMOS instrument. In our 30 minutes co-added image in r' band we clearly detect the source identified by Andersen et al. and Fong et al.(GCN 12563, 12566): this object appear to be elongated in the SW-NE direction, suggesting it is indeed the host of GRB 111117A. Using several SDSS (DR8) objects in the field we obtain a value of r' = 23.99 +/- 0.11 for this galaxy brightness, consistent with the one reported by the Magellan Telescope. We thank the Gemini-South staff for performing these observations, in particular Pascale Hibon.
GCN 12568 table
GRB_name GRB111117A
GCN_number 12568
Detection_method GROND
Circular_text TITLE: GCN CIRCULAR NUMBER: 12568 SUBJECT: GRB 111117A: GROND observations DATE: 11/11/18 11:02:44 GMT FROM: Alexander Kann at TLS Tautenburg S. Schmidl, A. Rossi, D. A. Kann, (all TLS Tautenburg) and J. Greiner (MPE Garching) report on behalf of the GROND team: We observed the field of GRB 111117A (Swift trigger #507901, Mangano et al., GCN 12559) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPI/ESO telescope at La Silla Observatory (Chile). Observations started at 02:01 UT on November 18, 13.8 hr after the GRB trigger. They were performed at an average seeing of 1".8 and an average airmass of 1.7 . We detect the afterglow/host candidate that was reported by Andersen et al. (GCN 12563, R = 23.1 0.3), Fong et al. (GCN 12566, r = 23.9 0.15) and Cucchiara et al. (GCN 12567, r' = 23.99 0.11) in the g' and r' band. Based on the first 75 min of total exposures in g'r'i'z' and 60 min in JHK, we estimate preliminary magnitudes (all in AB system) of g' = 24.08 0.15, r' = 24.08 0.16, i' > 23.9, z' > 23.4, J > 21.7, H > 21.3 and K > 19.5. Our r'-band magnitude is in agreement with Fong et al. and Cucchiara et al. Magnitudes are calibrated against SDSS as well as 2MASS field stars and are not corrected for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V)=0.03 mag in the direction of the burst (Schlegel et al. 1998).
GCN 12569 table
GRB_name GRB111117A
GCN_number 12569
Detection_method Swift-UVOT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 12569 SUBJECT: GRB 111117A: Swift/UVOT Upper Limits DATE: 11/11/18 11:04:27 GMT FROM: Samantha Oates at MSSL S. R. Oates (MSSL-UCL) and V. Mangano (INAF-IASFPA) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 111117A 137 s after the BAT trigger (Mangano et al., GCN Circ. 12559). No optical afterglow consistent with the XRT position (Melandri et al., GCN Circ. 12565) or the optical position (Andersen et al., GCN Circ. 12563 & Fong et al., GCN Circ. 12566) 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 137 387 246 >20.4 v 443 1241 97 >19.3 b 392 1191 117 >20.0 u 137 1315 490 >20.7 w1 493 1290 97 >20.4 m2 468 1117 78 >19.5 w2 419 1217 97 >21.5 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.03 in the direction of the burst (Schlegel et al. 1998).
GCN 12570 table
GRB_name GRB111117A
GCN_number 12570
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 12570 SUBJECT: GRB 111117A: TNG observations DATE: 11/11/18 11:32:21 GMT FROM: Andrea Melandri at INAF-OAB A. Melandri, D. Fugazza, S. Covino (INAF-OAB) and E. Palazzi (INAF- IASFBo) on behalf of a larger collaboration report: We observed the field of GRB 111117A (Mangano et al. GCN 12559) with the 3.6m TNG equipped with the Dolores camera. A sequence of 6x300s images were acquired starting on Nov 17.801 UT (i.e. ~7 hours after the burst event). No obvious fading object is detected inside the refined XRT error circle (Melandri et al. GCN 12565), while the extended object previously reported by Andersen et al. (GCN 12563), Fong et al. (GCN 12566), Cucchiara et al. (GCN 12567) and Schmidl et al. (GCN 12568) is clearly visible in our coadded image. Calibrating against a set of USNO-B1 stars of the field we find R = 23.1 +/- 0.2, consistent with the value found by Andersen et al. (GCN 12563). We caution about the possible fading of this object, as reported by Fong et al. (GCN 12566), because the apparent difference of magnitude could be related to the different calibration system. Since this object is extended also in our image and it does not seem to vary, it is more likely the host galaxy of GRB 111117A. We thank the TNG staff for their support, in particular Aldo Fiorenzano.
GCN 12571 table
GRB_name GRB111117A
GCN_number 12571
Detection_method VLA Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 12571 SUBJECT: GRB 111117A: EVLA observations DATE: 11/11/19 01:10:01 GMT FROM: Wen-fai Fong at CFA W. Fong, B. A. Zauderer and E. Berger (Harvard) report: "We observed the position of the short GRB 111117A (GCN 12559) with the EVLA beginning 2011 November 18.0 UT (11.8 hours post-burst) at a mean frequency of 5.8 GHz. In two hours of observations, we do not detect any radio source within the enhanced XRT position (GCN 12565) down to a 3-sigma limit of ~34 microJy."
GCN 12572 table
GRB_name GRB111117A
GCN_number 12572
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 12572 SUBJECT: GRB 111117A: further NOT observations DATE: 11/11/19 10:35:25 GMT FROM: Giorgos Leloudas at Dark Cosmology Centre Giorgos Leloudas, Daniele Malesani (DARK) and Dong Xu (WIS) report on behalf of a larger collaboration: We have continued observing GRB 111117A (Mangano et al., GCN 12559) using ALFOSC on the Nordic Optical Telescope (NOT). In addition, we have made a more careful analysis of the data reported in Andersen et al. (GCN 12563). Our R-band photometry, calibrated to USNO B1, can be summarized in the following table: Stack mid-time R 5x300 s 7.93 hr 23.36+-0.15 5x300 s 9.88 hr 23.98+-0.24 8x300 s 36.38 hr 23.74+-0.20 If we instead stack all the images obtained during the first night (10x300s, mid-time 8.91 hr after the GRB), we obtain R = 23.81+-0.17. Based on the NOT observations only, we suggest that there is some evidence of fading (albeit at low significance) between the observations obtained at 7.93 hr and later, indicating that at that time there was some contribution from the GRB afterglow to the underlying host galaxy light. We are grateful to the NOT observers, Kristian Vida (Konkoly Observatory) and Heidi Korhonen (U. Copenhagen) for obtaining these observations.
GCN 12573 table
GRB_name GRB111117A
GCN_number 12573
Detection_method Fermi GBM Det
t_trigger 12:13:42.030 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 12573 SUBJECT: GRB 111117A: Fermi GBM observation DATE: 11/11/19 15:35:22 GMT FROM: Suzanne Foley at MPE S. Foley (MPE) and P. Jenke (UAH) report on behalf of the Fermi GBM Team: "At 12:13:42.03 UT on 17 November 2011, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 111117A (trigger 343224824 / 111117510) which was also detected by the Swift/BAT (Mangano et al. 2011, GCN 12559). The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 12 degrees. Moreover, this burst was bright enough to result in a Fermi spacecraft autonomous rapid repoint (ARR) maneuver. The GBM light curve consists of two pulses with a duration (T90) of about 0.5 s (50-300 keV). The time-averaged spectrum from T0-0.128 s to T0+0.384 s is well fit by a power law function with an exponential high-energy cutoff. The power law index is -0.69 (+0.17/- 0.15) and the lower limit on the cutoff energy, parameterized as Epeak, is 370 keV. The event fluence (10-1000 keV) in this time interval is (6.7 +/- 0.2)E-07 erg/cm^2. The 1-sec peak photon flux measured starting from T0-0.128 s in the 10-1000 keV band is 2.8 +/- 0.2 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN 12574 table
GRB_name GRB111117A
GCN_number 12574
Detection_method Fermi GBM Det
t_trigger 12:13:42.030 UTC
Circular_text This is a duplicate of 12573. TITLE: GCN CIRCULAR NUMBER: 12574 SUBJECT: GRB 111117A: Fermi GBM observation DATE: 11/11/19 15:35:30 GMT FROM: Suzanne Foley at MPE S. Foley (MPE) and P. Jenke (UAH) report on behalf of the Fermi GBM Team: "At 12:13:42.03 UT on 17 November 2011, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 111117A (trigger 343224824 / 111117510) which was also detected by the Swift/BAT (Mangano et al. 2011, GCN 12559). The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 12 degrees. Moreover, this burst was bright enough to result in a Fermi spacecraft autonomous rapid repoint (ARR) maneuver. The GBM light curve consists of two pulses with a duration (T90) of about 0.5 s (50-300 keV). The time-averaged spectrum from T0-0.128 s to T0+0.384 s is well fit by a power law function with an exponential high-energy cutoff. The power law index is -0.69 (+0.17/- 0.15) and the lower limit on the cutoff energy, parameterized as Epeak, is 370 keV. The event fluence (10-1000 keV) in this time interval is (6.7 +/- 0.2)E-07 erg/cm^2. The 1-sec peak photon flux measured starting from T0-0.128 s in the 10-1000 keV band is 2.8 +/- 0.2 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN 12575 table
GRB_name GRB111117A
GCN_number 12575
Detection_method Fermi GBM Det
t_trigger 12:13:42.030 UTC
Circular_text This is a duplicate of 12573. TITLE: GCN CIRCULAR NUMBER: 12575 SUBJECT: GRB 111117A: Fermi GBM observation DATE: 11/11/19 15:35:52 GMT FROM: Suzanne Foley at MPE S. Foley (MPE) and P. Jenke (UAH) report on behalf of the Fermi GBM Team: "At 12:13:42.03 UT on 17 November 2011, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 111117A (trigger 343224824 / 111117510) which was also detected by the Swift/BAT (Mangano et al. 2011, GCN 12559). The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 12 degrees. Moreover, this burst was bright enough to result in a Fermi spacecraft autonomous rapid repoint (ARR) maneuver. The GBM light curve consists of two pulses with a duration (T90) of about 0.5 s (50-300 keV). The time-averaged spectrum from T0-0.128 s to T0+0.384 s is well fit by a power law function with an exponential high-energy cutoff. The power law index is -0.69 (+0.17/- 0.15) and the lower limit on the cutoff energy, parameterized as Epeak, is 370 keV. The event fluence (10-1000 keV) in this time interval is (6.7 +/- 0.2)E-07 erg/cm^2. The 1-sec peak photon flux measured starting from T0-0.128 s in the 10-1000 keV band is 2.8 +/- 0.2 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN 12576 table
GRB_name GRB111117A
GCN_number 12576
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12576 SUBJECT: GRB 111117A: optical upper limit in CrAO DATE: 11/11/20 15:51:37 GMT FROM: Alexei Pozanenko at IKI, Moscow V. Rumyantsev, N. Pit (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed field of the Swift GRB 111117A (Mangano et al. GCN 12559) with AZT-11 telescope of CrAO in R filter between Nov. 17 (UT) 16:11:05 - 17:14:24, i.e. starting ~ 4 h after burst trigger. We took several images of 180 exposure under variable weather conditions and mean seeing (FWHM) of about 2.7". We do not detect any source within XRT position (Melandri et al. GCN 12565). A photometry is based on the USNO B1.0 1130-0013895 star (00:50:46.48 +23:01:28.8) assuming R=16.98: T0+ Filter, Exposure, OT, UpperLimit (mid, d) (s) 0.1879 R 22x180 n/d 20.6
GCN 12577 table
GRB_name GRB111117A
GCN_number 12577
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 12577 SUBJECT: GRB 111117A: Gemini Afterglow Limits DATE: 11/11/21 10:02:31 GMT FROM: S. Bradley Cenko at Caltech S. B. Cenko (UC Berkeley) and A. Cucchiara (UC Santa Cruz / UCO Lick) report on behalf of a larger collaboration: We obtained a second epoch of imaging of the X-ray afterglow error circle of the short-hard GRB111117A (Mangano et al., GCN 12559) with the Gemini Multi-Object Spectrograph mounted on the 8-m Gemini South telescope. Observations were taken in the r' filter beginning at 1:18 UT on 2011 Nov 20 (~ 2.5 days after the Swift trigger). The host galaxy candidate (Andersen et al., GCN 12563; Fong et al., GCN 12566) is well detected in our stacked image, and has maintained a constant brightness (within uncertainties) when compared with our first epoch of GMOS imaging (Cucchiara et al., GCN 12567). Using the HOTPANTS image subtraction software package, we have differenced the two images and estimate a limit on the afterglow flux of r' > 25.5 mag at our first epoch (calculated with respect to several SDSS stars in the field).
GCN 12580 table
GRB_name GRB111117A
GCN_number 12580
Detection_method Optical
ra 12.6929°
decl 23.0111°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12580 SUBJECT: GRB 111117A: Chandra detection of the afterglow DATE: 11/11/21 21:40:47 GMT FROM: Takanori Sakamoto at NASA/GSFC T. Sakamoto (GSFC/UMBC), E. Troja (NASA/GSFC/ORAU), N. Gehrels (GSFC), J. Norris (BSU), S. D. Barthelmy (GSFC), J. L. Racusin (GSFC), N. Kawai (Tokyo Tech), A. Fruchter (STScI) A Chandra ToO observation of GRB 111117A (Mangano et al., GCN Circ. 12559; Sakamoto et al., GCN Circ. 12561) started on November 20 12:39 UT (~3 days after the GRB trigger) for a total of 19.8 ksec. The X-ray afterglow of the burst in the 0.3-8 keV band was detected at a position RA, Dec 12.69286, +23.01108 which is equivalent to: RA (J2000) = 00 50 46.29 Dec(J2000) = 23 00 39.9 The 1-sigma statistical error is 0.09 and 0.15 arcsec on RA and Dec respectively. The systematic error of the Chandra aspect solution is 0.6 arcsec (radius, 90% containment; i.e, http://cxc.harvard.edu/cal/ASPECT/celmon/) which dominates the localization uncertainty. The detection significance is 3.9 sigma (7.8 net source counts and 0.2 estimated background counts) by the ciao wavdetect software. The Chandra location is consistent with the enhanced XRT error circle (Melandri et al., GCN Circ. 12565) and the reported optical afterglow/host galaxy candidate from the NOT observation (Andersen et al., GCN Circ. 12563). However, we note that the optical candidate reported from the Magellan observation (Fong et al., GCN Circ 12566) is offset by 1.3 arcsec from the Chandra location. We would like to thank Harvey Tananbaum and the Chandra operation team for rapidly approving and making this observation.
GCN 12586 table
GRB_name GRB111117A
GCN_number 12586
Detection_method Other
ra 12.6927°
decl 23.0114°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12586 SUBJECT: GRB 111117A, the review of the sky area in plate archives DATE: 11/11/23 14:21:21 GMT FROM: Valentyna Golovnya at Main Astro Obs,Kyiv V.V. Golovnya, L.M. Kizyun (Main Astro Obs, Kyiv) report: We have undertaken the review of the sky area of GRB 111117A (W. Fong et al. GCN Circ.12566) on astronegatives, collected in Ukrainian NAS Main astronomical observatory plate archive (1976-1996). All the plates with the possible object appearance are digitized using Microtek ScanMaker 9800XL TMA flatbed scanner and have been placed into Golosiiv Plate Archive database DBGPA with open access to them. The list of plates is given in the table: YYYYMMDD TimeUT --Plates-- Exp. LimMag USNOA2 19860910 231743 GUA040C001009 16.0 15.20 1125-00304111 19860927 221901 GUA040C001012B 14.0 15.20 1125-00304111 19870917 230117 GUA040C001118A 16.0 15.20 1125-00304111 19880821 010032 GUA040C001325A 16.0 13.70 1125-00304597 19911009 205736 GUA040C001853A 15.5 15.20 1125-00304111 Plates-the plate's identifier in GUA040C archives of DWA (D/F=400/2000, M=103"/mm) of the Ukrainian NAS Main Astro obs in Kyiv (Marsden's number - 83)[1]. Exp. - Duration of the maximum exposure (minutes). LimMag - Limited V mag, derived in the 10 minutes area around the location given in W. Fong et al. GCN Circ.12566: RA(J2000): 00h 50m 46.24s, Dec(J2000): +23d 00' 41.04" USNOA2 - Comparison star. The preview images of 11 areas together with the 10x10 min.of arc area from SkyMap can be found in http://gua.db.ukr-vo.org/img/grb/111117A/index.html The images with full resolution are available via e-mail on demand. References: 1.L.Pakuliak DATABASE of GOLOSIIV PLATE ARCHIVE (DBGPA V2.0), http://gua.db.ukr-vo.org
GCN 12588 table
GRB_name GRB111117A
GCN_number 12588
Detection_method correction
ra 12.6927°
decl 23.0111°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12588 SUBJECT: GRB 111117A: Refined Chandra Astrometry DATE: 11/11/23 20:58:42 GMT FROM: Edo Berger at Harvard E. Berger, W. Fong (Harvard), T. Sakamoto (GSFC/UMBC), and E. Troja (NASA/GSFC/ORAU) report: "We re-analyzed the Chandra observation of the short GRB 111117A (Sakamoto et al. GCN 12580) for the purpose of clarifying and refining the astrometry relative to the location of the host galaxy (using an optical image from Magellan/IMACS: Fong et al. GCN 12566). Using 4 objects in common to the Chandra data and the IMACS image (which is itself tied to USNO-B with 0.25" rms) we find a correction to the native Chandra astrometry of: dRA = -0.54+/-0.17" dDEC = +0.34+/-0.14" substantially improved relative to the 0.6" systematic uncertainty of the native Chandra astrometry (Sakamoto et al. GCN 12580). With this correction, the position of the X-ray counterpart of GRB 111117A is (J2000): RA = 00:50:46.257 DEC = +23:00:40.01 with a statistical uncertainty of about 0.13" in each coordinate. Relative astrometry compared to the centroid of the host galaxy indicates a projected angular offset of 1.0". Although the redshift of the host galaxy is not known at the present, this roughly corresponds to 6-8 kpc at redshifts of z>0.5 (typical of short GRB offsets: Fong et al. 2010, ApJ, 708, 9)."
GCN 12625 table
GRB_name GRB111117A
GCN_number 12625
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12625 SUBJECT: GRB 111117A: Refined GMG observation DATE: 11/12/07 12:48:44 GMT FROM: Dong Xu at Weizmann Inst D. Xu (WIS) reports on behalf of a larger collaboration: We re-processed 1x600s R-band and 3x600s z-band images (Zhao et al., GCN 12560), starting 1.960 hrs post-burst, with calibration frames available later on. The R-band non-detection remains unchanged. However, in the stacked z-band image an optical source was weakly detected, with its position consistent with the NOT position (Andersen et al., GCN 12563), the refined XRT position (Melandri et al., GCN 12565), as well as the refined Chandra position (Berger et al., GCN 12588), and to the magnitude of z=22.9+/-0.3, calibrated with nearby SDSS stars. The z-band afterglow faded and was not detected by following GROND observation (Schmidl et al., GCN 12568).