//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10837 SUBJECT: GRB 100614A: Swift detection of a burst DATE: 10/06/14 22:09:01 GMT FROM: Scott Barthelmy at NASA/GSFC G. Stratta (ASDC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), D. N. Burrows (PSU), V. D'Elia (ASDC), J. M. Gelbord (PSU), C. Gronwall (PSU), S. T. Holland (CRESST/USRA/GSFC), J. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA), N. P. M. Kuin (UCL-MSSL), W.B Landsman (GSFC), J. Mao (INAF-OAB), F. E. Marshall (NASA/GSFC), J. P. Osborne (U Leicester), T. Sakamoto (NASA/UMBC), C. J. Saxton (UCL-MSSL), B. Sbarufatti (INAF-OAB/IASFPA), M. Stamatikos (OSU/NASA/GSFC), T. N. Ukwatta (GSFC/GWU) and L. Vetere (PSU) report on behalf of the Swift Team: At 21:38:26 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 100614A (trigger=424716). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 263.519, +49.227, which is RA(J2000) = 17h 34m 05s Dec(J2000) = +49d 13' 36" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). As is typical for image triggers, the TDRSS lightcurve does not show anything significant. The XRT began observing the field at 21:40:39.1 UT, 133.0 seconds after the BAT trigger. Using promptly downlinked data we find a bright, fading, uncatalogued X-ray source with an enhanced position: RA, Dec 263.4992, 49.2347 which is equivalent to: RA(J2000) = 17h 33m 59.81s Dec(J2000) = +49d 14' 05.1" with an uncertainty of 2.1 arcseconds (radius, 90% containment). 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 in excess of the Galactic value (2.2e+20 cm^-2, Kalberla et al. 2005), with an excess column of 1.3 (+1.11/-1.03) x 10^21 cm^-2 (90% confidence). The initial flux in the 0.1 s image was 4.41e-08 erg cm^-2 s^-1 (0.2-10 keV). UVOT took a finding chart exposure of nominal 250 seconds with the U filter starting 873 seconds after the BAT trigger. No white observations were taken because there is a V = 7.4 star in the UVOT field of view. The UVOT image covers 100% of the XRT error circle. No credible afterglow candidate has been found in the initial data products to an estimated magnitude limit of u > 19.2. No correction has been made for the expected extinction corresponding to E(B-V) of 0.03 mag. Burst Advocate for this burst is G. Stratta (giulia.stratta AT asdc.asi.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.) //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10838 SUBJECT: GRB 100614A: Liverpool Telescope Observations DATE: 10/06/14 23:07:02 GMT FROM: Carole Mundell at ARI, JMU,Liverpool C.G. Mundell and I.A. Steele (Liverpool JMU) report on behalf of a larger collaboration: "The 2-m Liverpool Telescope robotically followed up GRB100614A (SWIFT trigger 424716; Stratta et al. GCN10837) 17.07 min after the GRB trigger time. Initial analysis shows no optical counterpart is detected in the XRT error circle to the following limiting magnitudes (wrt USNOB1): Time from trigger Filter Limiting Mag ----------------- ------- ------------ 29 mins R > 21 mag 31 mins i' > 21 mag We note also that no counterpart is detected in z'-band images. Observations and analysis are ongoing. This message may be cited" //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10839 SUBJECT: GRB 100614A: BOOTES-2/TELMA optical observations DATE: 10/06/14 23:16:03 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia M. Jelinek, A. J. Castro-Tirado (IAA-CSIC Granada), P. Kubanek (IAA-CSIC and IPL-UV) and A. de Ugarte Postigo (OAB), on behalf of a larger collaboration, report: "The TELMA 0.6m robotic telescope at the BOOTES-2 astronomical station in South Spain has responded to GRB 100614A 18s after the GCN notice (and about 6.9 min after the onset of the GRB). The co-add of 36 images (3-s each, unfiltered) obtained through cirrusses provides a R = 18 limiting magnitude at the position of the X-ray atterglow (Stratta et al. GCNC 10837)." This message can be quoted. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10840 SUBJECT: GRB 100614A: WHT I-band observations DATE: 10/06/15 01:32:15 GMT FROM: Andrew Levan at U.of Leicester A.J. Levan (U. Warwick), N.R. Tanvir (U. Leicester) and P. Groot (Nijmegen) report for a larger collaboration: "We obtained imaging of GRB 100614A (Stratta et al. GCN 10837) with the 4.2m William Herschel Telescope (WHT). Observations began at 22:38 UT, approximately 1.0 hours after the burst. A total of 1200s integration was obtained in the I-band. Within the refined XRT position we do not locate any obvious sources to a preliminary limiting magnitude of I>24." //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10845 SUBJECT: GRB 100614 : XMM-Newton observation DATE: 10/06/15 07:16:47 GMT FROM: Norbert Schartel at XMM-Newton/ESA XMM-Newton is observing GRB 100614 (RA=17h 34m 05s, DEC=+49d 13' 16", J2000), starting at 04:12 UT, on June 15, 2010, for an exposure of 42 ksec. ================================================================================================ This message and any attachments are intended for the use of the addressee or addressees only. The unauthorised disclosure, use, dissemination or copying (either in whole or in part) of its content is prohibited. If you received this message in error, please delete it from your system and notify the sender. E-mails can be altered and their integrity cannot be guaranteed. ESA shall not be liable for any e-mail if modified. ================================================================================================= //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10846 SUBJECT: GRB 100614A: Swift-XRT refined analysis DATE: 10/06/15 10:01:56 GMT FROM: Raffaella Margutti at U. di Milano Bicocca R. Margutti, B. Sbarufatti (INAF-OAB) and G. Stratta (ASDC) report on behalf of the Swift-XRT team: We have analysed 1.4 ks of XRT data for GRB 100614A (Stratta et al. GCN Circ. 10837), from 136 s to 1.6 ks after the BAT trigger. The data comprise 319 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The light curve can be modelled with an initial power-law decay with an index of alpha=1.79 (+/-0.11) followed by a break around T+300 s to an alpha of 2.51 (+0.12, -0.10). X-ray flaring activity is detected in the first 300 s of observation. A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.84 (+/-0.05). The best-fitting absorption column is 1.80 (+/-0.15) x 10^21 cm^-2, in excess of the Galactic value of 2.2 x 10^20 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 1.92 (+0.21, -0.20) and a best-fitting absorption column of 1.0 (+/-0.5) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.1 x 10^-11 (5.1 x 10^-11) erg cm^-2 count^-1. If the light curve continues to decay with a power-law decay index of 2.51, the count rate at T+24 hours will be 1.3 x 10^-5 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 5.2 x 10^-16 (6.5 x 10^-16) erg cm^-2 s^-1. The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00424716. This circular is an official product of the Swift-XRT team. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10849 SUBJECT: GRB 100614A: Enhanced Swift-XRT position DATE: 10/06/15 11:50:36 GMT FROM: Phil Evans at U of Leicester J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team. Using 3444 s of XRT Photon Counting mode data and 4 UVOT images for GRB 100614A, 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 = 263.49923, +49.23434 which is equivalent to: RA (J2000): 17h 33m 59.82s Dec (J2000): +49d 14' 03.6" with an uncertainty of 1.7 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. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10852 SUBJECT: GRB 100614A: Swift-BAT refined analysis DATE: 10/06/15 13:59:10 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), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC/UMD), D. M. Palmer (LANL), M. Stamatikos (GSFC/ORAU), G. Stratta (ASDC), J. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team): Using the data set from T-239 to T+963 sec from recent telemetry downlinks, we report further analysis of BAT GRB 100614A (trigger #424716) (Stratta, et al., GCN Circ. 10837). The BAT ground-calculated position is RA, Dec = 263.534, 49.232 deg which is RA(J2000) = 17h 34m 08.2s Dec(J2000) = +49d 13' 56.4" with an uncertainty of 1.6 arcmin, (radius, sys+stat, 90% containment). The partial coding was 56%. The mask-weighted light curve shows a relatively smooth peak starting at ~T-10 sec, peaking around T+50 sec, and ending at ~T+275 sec. T90 (15-350 keV) is 225 +- 55 sec (estimated error including systematics). The time-averaged spectrum from T-9.0 to T+282.0 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.88 +- 0.15. The fluence in the 15-150 keV band is 2.7 +- 0.2 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+31.00 sec in the 15-150 keV band is 0.7 +- 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/424716/BA/ //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10853 SUBJECT: GRB 100614A: MASTER-Net optical alert observations DATE: 10/06/15 14:22:59 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov, D.Zimnukhov, M. Kornilov Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.V. Parhomenko, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory V.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina Blagoveschensk Educational State University, Blagoveschensk V.Krushinski, I.Zalozhnich, T.Kopytova, A. Popov Ural State University, Kourovka K.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok, O.Gres, O.Chuvalaev Irkutsk State University MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located near Kislovodsk was pointed to the GRB 100614A (Stratta et al., GCN 10837) 26 s after notice time and 7 min 59 s after GRB time in two polarizations at 2010-06-14 21:46:25 UT. We have a number images with 180-s exposition. We haven't found optical transient within Swift-XRT error-box. The 3-sigma unfiltred upper limit has been about 20.9 mag on 34 coadded images (21:46:25 - 22:42:05 UT). The message may be cited. mailto: lipunov@sai.msu.ru //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10854 SUBJECT: GRB 100614A: NOT optical upper limits DATE: 10/06/15 16:34:46 GMT FROM: Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst D. Malesani (DARK/NBI), D. Xu (Weizmann Inst.), T. Pursimo (NOT), P. Jakobsson (Univ. Iceland), report on behalf of a larger collaboration: We observed the field of GRB 100614A (Stratta et al., GCN 10837) with the NOT equipped with ALFOSC. Observations were carried out in the R, I, and z filters, with mean times 54, 79, and 107 minutes after the GRB trigger, respectively. We do not detect any source within the refined XRT error circle (Osborne et al., GCN 10849) in any of our images. The limiting magnitudes are R > 24.0, I > 22.8 calibrated against the USNO-B1 catalog (calibration of the z-band data is not presently feasible). Our findings are in agreement with non-detections reported by other groups (Mundell & Steele, GCN 10838; Jelinek et al., GCN 10839; Levan et al., GCN 10840; Gorbovskoy et al., GCN 10853). We acknowledge prompt reaction and careful assistence of the NOT staff. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10855 SUBJECT: GRB 100614A: Swift/UVOT Upper Limits DATE: 10/06/15 19:20:53 GMT FROM: Stephen Holland at USRA/NASA/GSFC/SSC S. T. Holland (CRESST/GSFC/USRA) and G. Stratta (ASDC) report on the behalf of the Swift UVOT team: The Swift/UVOT observed the field of GRB 100614A starting 123 s after the BAT trigger (Stratta, et al., 2010, GCN Circ. 10837). Settled observations started at 139 s. No white observations were taken due to the presence of the bright A0 star HD 159607 (V = 7.4) located 11.5 arcmin from the XRT source. We do not find any new source, relative to the DSS, USNO-B1.0, or 2MASS at the position of the XRT afterglow (Osborne, et al. 2010, GCN Circ. 10849). Preliminary 3-sigma upper limits for detecting a source in the u-band finding chart, and in the co-added images, using a 2.5 arcsecond radius circular aperture, are Filter T_start T_stop Exp(s) Mag -------------------------------------------- u (fc) 139 339 246 >21.0 v 445 12,065 1218 >21.4 b 395 7165 549 >21.8 u 139 6960 897 >21.7 uvw1 494 13,145 675 >21.2 uvm2 770 12,970 1102 >21.4 uvw2 421 7365 484 >21.1 -------------------------------------------- The quoted upper limits have not been corrected for the expected Galactic extinction along the line of sight corresponding to a reddening of E_{B-V} = 0.03 mag (Schlegel, et al., 1998, ApJS, 500, 525). All photometry is on the UVOT photometry system described in Poole et al. (2008, MNRAS, 383, 627). //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10862 SUBJECT: GRB 100614A: Gemini/NIRI Observations DATE: 10/06/16 17:22:59 GMT FROM: S. Bradley Cenko at Caltech S. B. Cenko, D. A. Perley (UC Berkeley), N. R. Tanvir (U. Leicester), A. J. Levan (U. Warwick), J. S. Bloom, B. E. Cobb (UC Berkeley), K. Wiersema (U. Leicester) report on behalf of a larger collaboration: We have imaged the field of GRB100614A (Stratta et al., GCN 10837) with the Gemini Near InfraRed Imager on the 8-m Gemini North telescope. Observations were obtained in the Y, J, and K filters beginning at 7:05 UT on 15 June 2010 (~ 9.5 hours after the burst). We find no sources inside the revised XRT error circle (Osborne et al., GCN 10849) to limiting magnitudes of J > 22.7, K > 21.6 (Vega mags, calibrated with respect to 2MASS). The lack of optical/NIR detections at other facilities (Mundell and Steele, GCN 10838; Jelinek et al., GCN 10839; Levan et al., GCN 10840; Gorbovskoy et al., GCN 10853, Malesani et al., GCN 10854, Holland and Stratta, GCN 10857), coupled with the moderate excess column inferred from the XRT spectrum (Margutti et al., GCN 10846), suggest a highly extinguished optical/NIR afterglow. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10893 SUBJECT: GRB 100614A: CrAO optical limit DATE: 10/06/26 19:55:21 GMT FROM: Vasilij Rumjantsev at CrAO D. Shakhovskoy, V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of the Swift GRB 100614A (Stratta et al. GCN 10837) with AZT-11 telescope of CrAO between (UT) June, 15 19:18 -- 20:19. We do not detect any source in enhanced XRT error circle (Osborne et al., GCN 10849). The photometry based on USNO-B1.0 star 1392-0274963 (RA(J2000) = 17:34:02.22 Dec(J2000)= +49:14:58.3 ) assuming R=17.73 is following: T0+ Filter, Exposure, mag. UL (mid, d) (s) 0.9236 R 20x180 > 21.9 //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10967 SUBJECT: GRB 100614A: 10.4-m GTC deep-optical limit DATE: 10/07/23 15:00:20 GMT FROM: Sergey Guziy at IAA CSIC S. Guziy, M. Jelínek, J. Gorosabel (IAA-CSIC Granada), P. Kubánek (U. Valencia), A. de Ugarte Postigo (INAF-OAB), D. Pérez-Ramírez (U, Jaén), G. Gómez (GTC La Palma) and A. J. Castro-Tirado (IAA-CSIC), on behalf of a larger collaboration, report: "We observed the field of GRB 100614A (G.Stratta et al., GCN #10837) in ugriz bands with the 10.4-m Gran Telescopio Canarias (GTC) at the Observatorio del Roque de los Muchachos on the island of La Palma. Observations started at 01:55 UT on 2010 June 15th, 4.3 h after the GRB trigger. Images were obtained at an average seeing of 0."6 and an average airmass of 1.1 with the OSIRIS instrument (Cepa et al. 2010, HSA5,conf.) and a total integration time of 180-s for each band. We do not detect any source within the Swift-XRT error circle reported by Osborne et al. (GCN #10849) with the following 3-sigma limiting magnitudes (Vega system): u > 25.2, g > 27.1, r > 26.4, i > 25.9, z > 24.9. The given limits were obtained by observation of standard stars and compared with the SSDS catalog and are not corrected for the Galactic foreground extinction." This message can be quoted.