GRB130122A

This page lists all entries on GRB130122A in GRBweb

Summary IPN Swift GCN 14140 GCN 14141 GCN 14142 GCN 14143 GCN 14144 GCN 14145 GCN 14146 GCN 14147 GCN 14148 GCN 14149 GCN 14150 GCN 14152 GCN 14192

Summary table
Variable Value Source
T0 23:44:09 UTC GCN_circulars,Swift Det
ra 194.2846° Swift
decl 59.0149° Swift
pos_error 6.86e-05° Swift
T90 64.0 s Swift
T90_start 23:44:09 UTC Swift
fluence 7.40e-07 erg/cm² Swift
T100 64.0 s
GBM_located False
mjd 56314.98899305556 GCN_circulars,Swift Det
IPN table
GRB_name GRB130122A
ra 194.2167°
decl 59.0167°
pos_error 5.00e-02°
Swift table
GRB_name GRB130122A
t_trigger 23:44:09 UTC
ra 194.2846°
decl 59.0149°
pos_error 6.86e-05°
T90 64.0 s
fluence 7.40e-07 erg/cm²
GCN 14140 table
GRB_name GRB130122A
GCN_number 14140
Detection_method Swift Det
t_trigger 23:44:09 UTC
ra 194.2180°
decl 59.0150°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14140 SUBJECT: GRB 130122A: Swift detection of a burst with an optical counterpart DATE: 13/01/22 23:57:00 GMT FROM: Scott Barthelmy at NASA/GSFC A. Y. Lien (NASA/GSFC/ORAU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), A. P. Beardmore (U Leicester), N. Gehrels (NASA/GSFC), K. L. Page (U Leicester), D. M. Palmer (LANL), T. Sakamoto (AGU), B. Sbarufatti (INAF-OAB/PSU), M. H. Siegel (PSU) and E. Troja (NASA/GSFC/UMCP) report on behalf of the Swift Team: At 23:44:09 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 130122A (trigger=546731). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 194.218, +59.015 which is RA(J2000) = 12h 56m 52s Dec(J2000) = +59d 00' 55" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows a single peak with a duration of about 30 sec. The peak count rate was ~1000 counts/sec (15-350 keV), at ~1 sec after the trigger. The XRT began observing the field at 23:46:06.3 UT, 116.9 seconds after the BAT trigger. Using promptly downlinked data we find a fading, uncatalogued X-ray source located at RA, Dec 194.28337, 59.01331 which is equivalent to: RA(J2000) = 12h 57m 08.01s Dec(J2000) = +59d 00' 47.9" with an uncertainty of 3.6 arcseconds (radius, 90% containment). This location is 121 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 9.34 x 10^19 cm^-2 (Kalberla et al. 2005). UVOT took a finding chart exposure of 150 seconds with the White filter starting 121 seconds after the BAT trigger. There is a candidate afterglow in the list of sources generated on-board at RA(J2000) = 12:57:08.34 = 194.28476 DEC(J2000) = +59:00:53.9 = 59.01496 with a 90%-confidence error radius of about 1.10 arc sec. This position is 6.2 arc sec. from the center of the XRT error circle. The estimated magnitude is 18.95. No correction has been made for the expected extinction corresponding to E(B-V) of 0.01. Burst Advocate for this burst is A. Y. Lien (yarleen AT gmail.com). 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 14141 table
GRB_name GRB130122A
GCN_number 14141
Detection_method Swift Other
ra 194.2875°
decl 59.0442°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14141 SUBJECT: GRB 130122A: T100 observations DATE: 13/01/23 11:43:08 GMT FROM: Eda Sonbas at NASA/GSFC E. Sonbas (Adiyaman Univ.), T. Guver (Sabanci Univ.), O. Uysal (Akdeniz Univ./TUG), E. Gogus (Sabanci Univ.), H. Kirbiyik (TUG) report on behalf of a larger collaboration We observed the field of Swift GRB 130122A (Lien et al. GCN#14140) with the 1.0 meter T100 telescope (TUBITAK National Observatory, Antalya - Turkey), starting January, 23, 00:50 UT (~ 1 hour after the trigger). Observations were carried out in the R filter under moderate weather conditions. The afterglow is clearly detected in stacked (4x300s) R band images and consistent with UVOT coordinates reported by Lien et al. GCN#14140. There is ~10 arcsec offset between afterglow candidate and SDSS J125709.02+590053.1 and USNO-B1 1490-0209231 (RA= 12:57:09.00, Dec = +59:00:53.35) objects. Using USNO-B1 star USNO-B1 1490-0209196 (RA= 12:56:56.61, Dec= +59:02:39.11) in the field magnitude of the OT were estimated 20.8 +/- 0.2. We are grateful to the TUBITAK National Observatory staff for promptly scheduling the observations and their technical support.
GCN 14142 table
GRB_name GRB130122A
GCN_number 14142
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 14142 SUBJECT: GRB 130122A: MASTER-Net early marginal detection of the OT DATE: 13/01/23 13:47:18 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, D.Denisenko, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina, N.Shatskiy, P.Balanutsa, A.Kuznetsov, V.V.Chazov Lomonosov Moscow State University, Sternberg Astronomical Institute A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov Blagoveschensk Educational State University, Blagoveschensk K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University V.Krushinski, I.Zalozhnih, A. Popov Ural Federal University, Kourovka Hugo Levato and Carlos Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) Claudio Mallamaci, Carlos Lopez and Federico Podest Observatorio Astronomico Felix Aguilar (OAFA) MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in Kislovodsk was pointed to the GRB130122A 28 sec s after notice time and 91 sec after GRB time at 2013-01-22 23:45:40 UT in two polarizations. The weather conditions were not very good and continuosly deteriorated. On our first (20s exposure) double set we marginally find an optical transient at the Swift UVOT position (Lien et al., GCN 14140) with unfiltered magnitude 16.8+-0.3 (m = 0.8R + 0.2B from USNO-B). This message may be cited.
GCN 14143 table
GRB_name GRB130122A
GCN_number 14143
Detection_method Swift-XRT Det
ra 194.2852°
decl 59.0145°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14143 SUBJECT: GRB 130122A: Enhanced Swift-XRT position DATE: 13/01/23 15:18:43 GMT FROM: Phil Evans at U of Leicester A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester) report on behalf of the Swift-XRT team. Using 488 s of XRT Photon Counting mode data and 1 UVOT images for GRB 130122A, 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 = 194.28517, +59.01455 which is equivalent to: RA (J2000): 12h 57m 8.44s Dec (J2000): +59d 00' 52.4" with an uncertainty of 1.8 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 14144 table
GRB_name GRB130122A
GCN_number 14144
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 14144 SUBJECT: GRB 130122A: Xinglong optical upper limit DATE: 13/01/23 19:50:21 GMT FROM: Dong Xu at DARK/NBI L.P. Xin (NAOC), D. Xu (DARK/NBI), Z.Y. Wu, J.Y. Wei, Y.L. Qiu, T.M. Zhang, J. Wang, J.S. Deng, C. Wu, X.H. Han (NAOC) report on behalf of a larger collaboration: We began to observe the field of GRB 130122A (Lien et.al. GCN 14140) using the Xinglong 2.16m telescope located in Heibei Province, China at 18:14:12 UT on 2013-01-23. We obtained 5x300s R-band images in a poor seeing, with a median time of 19.7 hr after the BAT trigger. The afterglow is not detected in the stacked image, down to a 3sigma limit of R~20.2 mag, calibrated with nearby USNO B1 stars. This message may be cited. For more information about Xinglong GRBs Follow-up observations, please visit the website: http://www.xinglong-naoc.org/grb/
GCN 14145 table
GRB_name GRB130122A
GCN_number 14145
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 14145 SUBJECT: GRB 130122A: Swift-XRT refined Analysis DATE: 13/01/23 20:57:06 GMT FROM: Phil Evans at U of Leicester V. D'Elia (ASDC), D.N. Burrows (PSU), J.A. Kennea (PSU), M.C. Stroh (PSU), C. Pagani (U. Leicester), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), A. Maselli (INAF-IASFPA), V. Mangano (INAF-IASFPA) and A.Y. Lien report on behalf of the Swift-XRT team: We have analysed 9.6 ks of XRT data for GRB 130122A (Lien et al. GCN Circ. 14140), from 102 s to 29.4 ks after the BAT trigger. The data comprise 76 s in Windowed Timing (WT) mode (the first 8 s were taken while Swift was slewing) with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Beardmore et al. (GCN. Circ 14143). The light curve can be modelled with a power-law decay with a decay index of alpha=1.27 (+/-0.04). A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 1.67 (+0.21, -0.20). The best-fitting absorption column is 6.3 (+5.3, -4.6) x 10^20 cm^-2, in excess of the Galactic value of 9.3 x 10^19 cm^-2 (Kalberla et al. 2005). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.3 x 10^-11 (4.8 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 6.3 (+5.3, -4.6) x 10^20 cm^-2 Galactic foreground: 9.3 x 10^19 cm^-2 Excess significance: 1.9 sigma Photon index: 1.67 (+0.21, -0.20) If the light curve continues to decay with a power-law decay index of 1.27, the count rate at T+24 hours will be 1.3 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 5.4 x 10^-14 (6.1 x 10^-14) erg cm^-2 s^-1. The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00546731. This circular is an official product of the Swift-XRT team.
GCN 14146 table
GRB_name GRB130122A
GCN_number 14146
Detection_method Swift-BAT Det
ra 194.3070°
decl 59.0030°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14146 SUBJECT: GRB 130122A: Swift-BAT refined analysis DATE: 13/01/24 00:58:49 GMT FROM: Scott Barthelmy at NASA/GSFC 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), A. Y. Lien (NASA/GSFC/ORAU), C. B. Markwardt (GSFC), D. M. Palmer (LANL), A. M. Parsons (GSFC), T. Sakamoto (GSFC/UMBC), G. Sato (ISAS), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team): Using the data set from T-61 to T+242 sec from recent telemetry downlinks, we report further analysis of BAT GRB 130122A (trigger #546731) (Lien, et al., GCN Circ. 14140). The BAT ground-calculated position is RA, Dec = 194.307, 59.003 deg, which is RA(J2000) = 12h 57m 13.8s Dec(J2000) = +59d 00' 09.2" with an uncertainty of 3.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 89%. The mask-weighted light curve shows a single roughly FRED-like peak starting at ~T+0 sec, peaking at ~T+10 sec, and ending at ~T+100 sec. T90 (15-350 keV) is 64 +- 36 sec (estimated error including systematics). The time-averaged spectrum from T-12.6 to T+67.4 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.34 +- 0.24. The fluence in the 15-150 keV band is 7.4 +- 1.1 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+10.92 sec in the 15-150 keV band is 0.4 +- 0.1 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/546731/BA/
GCN 14147 table
GRB_name GRB130122A
GCN_number 14147
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 14147 SUBJECT: GRB 130122A: RATIR Detection DATE: 13/01/24 04:58:33 GMT FROM: Nat Butler at Az State U Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), Chris Klein (UCB), Ori Fox (UCB) J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (UCSC), Eleonora Troja (GSFC), Enrico Ramirez‐Ruiz (UCSC), José A. de Diego (UNAM), Leonid Georgiev (UNAM), Jesús González (UNAM), Carlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC), and Harvey Moseley (GSFC) report: Through intermittent clouds and in poor seeing conditions, we observed the field of GRB 130122A (Lien, et al., GCN 14140) 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. Between 2013 Jan 23.30 to 2013 Jan 23.52 UTC (7.6 to 12.7 hours after the BAT trigger), we obtained approximately 45 minutes of useful data in the r', i', Z, Y, and J bands. In comparison with SDSS DR8 and 2MASS, we derive the following detection and upper limits (3-sigma) in the AB magnitude system for a source spatially coincident with the UVOT position (GCN 14140): r' >20.7 i' 21.1 +/- 0.2 Z >20.3 Y >20.2 J >18.2 These magnitudes are not corrected for Galactic extinction in the direction of the GRB. Continued observations are planned. We thank the staff of the Observatorio Astronómico Nacional in San Pedro Mártir.
GCN 14148 table
GRB_name GRB130122A
GCN_number 14148
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 14148 SUBJECT: GRB 130122A: optical observations DATE: 13/01/24 10:05:37 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (SAI MSU/IKI), V. Linkov (ISON-Kislovodsk), I. Molotov (KIAM), V. Kouprianov (GAO), A. Pozanenko (IKI), report on behalf of larger collaboration: We observed the field of GRB 130122A (Lien et al., GCN 14140) with SANTEL-400AN (0.4-m f/3) telescope of ISON-Kislovodsk observatory. Observations started on Jan. 22 (UT) 23:44 and we obtained several unfiltered images of 60 s and 100 s exposures. Initial part of our observations were carried under unfavorable weather conditions. Starting on Jan.23 (UT) 00:14:14 we clearly detect optical afterglow of GRB 130122A (Lien et al., GCN 14140; Sonbas et al., GCN 14141; Gorbovskoy et al., GCN 14142) in single images of 60 s exposure. A preliminary photometry of stacked images is based on USNO-B1.0 (R2) nearby stars: T_start, T0+, Exp, Filter, OT (UT) mid (d) (s) 00:14:14 0.00899 8x60 none 18.0 +/-0.1 00:47:45 0.04474 100 none 18.5 +/- 0.5 01:02:07 0.05579 4x60 none >17.3
GCN 14149 table
GRB_name GRB130122A
GCN_number 14149
Detection_method Swift-UVOT Det
ra 194.2846°
decl 59.0149°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14149 SUBJECT: GRB 130122A: Swift/UVOT Detection DATE: 13/01/24 12:16:16 GMT FROM: Patricia Schady at MPE/Swift A. A. Breeveld (MSSL-UCL) and A. Y. Lien (NASA/GSFC/ORAU) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 130122A 121 s after the BAT trigger (Lien et al., GCN Circ. 14140). A source consistent with the XRT position reported in (Beardmore et al., GCN Circ. 14143) is seen in the initial exposures. The preliminary UVOT position is: RA (J2000) = 12:57:08.30 = 194.28459 (deg.) Dec (J2000) = +59:00:53.5 = 59.01487 (deg.) with an estimated uncertainty of 0.53 arc sec. (radius, 90% confidence). Preliminary detections and 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the finding chart (FC) and earliest exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag white_FC 121 271 148 18.75 ± 0.09 white 559 579 19 18.57 ± 0.23 v 609 629 19 >17.9 b 535 555 19 18.35 ± 0.32 u 279 529 246 18.49 ± 0.14 uvw1 3974 5610 393 >20.9 uvm2 5205 5404 197 >20.0 uvw2 4795 4995 197 >20.4 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.01 in the direction of the burst (Schlegel et al. 1998).
GCN 14150 table
GRB_name GRB130122A
GCN_number 14150
Detection_method Swift-UVOT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 14150 SUBJECT: GRB 130122A: CARMA 3mm Observations DATE: 13/01/25 01:31:32 GMT FROM: Ashley Zauderer at CfA A. Zauderer and E. Berger (Harvard) report on behalf of the CARMA Key Project "A Millimeter View of the Transient Universe": "We observed the position of GRB 130122A (Lien et al.; GCN 14140) beginning 2013 Jan 23.47 (dt=0.48 d) with the Combined Array for Research in Millimeter Astronomy. At a mean frequency of 85 GHz with 78 m integration, we do not detect significant millimeter emission at the Swift/UVOT position (Breeveld et al.; GCN 14149) to a 3-sigma limit of ~0.9 mJy. We thank the CARMA observatory staff for their support."
GCN 14152 table
GRB_name GRB130122A
GCN_number 14152
Detection_method Optical
ra 12.0000°
decl 59.0000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 14152 SUBJECT: GRB 130122A: RTT150 optical observations DATE: 13/01/28 12:20:09 GMT FROM: Irek Khamitov at TUG A. Galeev (KFU/AST), I. Khamitov (TUG), I. Bikmaev, N. Sakhibullin (KFU/AST), R. Burenin, M. Pavlinsky, R. Sunyaev (IKI), H. Kirbiyik (TUG), U. Kiziloglu (METU), E. Gogus (Sabanci Uni.) report: The field of the optical afterglow of GRB 130122A (Lien et al., GCN 14140) was observed with Russian-Turkish 1.5-m telescope (RTT150, Bakirlitepe, TUBITAK National Observatory, Turkey) in partially cloudy conditions. Using the TFOSC instrument we obtained BVR images by 300s starting at January 23, 02:38:31 UT, i.e. 2.91 hours after the burst. The afterglow is clearly detected in all images. On our images we find the optical transient at the coordinates with uncertainty of 0.1 arcsec: R.A. (J2000) = 12 57 08.317 Dec. (J2000) = +59 00 53.62 Using the same USNO-B1 star reported by Sonbas et al. (GCN 14141) as a reference, we estimated the R-magnitudes of the afterglow: T-T0, Mag. +/- Mag.err (hour) 2.95 19.88 +/- 0.13 3.06 20.07 +/- 0.10 3.17 19.94 +/- 0.20 3.28 20.00 +/- 0.09 3.33 19.79 +/- 0.13 The combined image of the field can be found at: http://hea.iki.rssi.ru/grb/130122a/indexeng.html This message may be cited.
GCN 14192 table
GRB_name GRB130122A
GCN_number 14192
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 14192 SUBJECT: GRB 130122A: PTF P48 optical upper limits DATE: 13/02/09 15:33:37 GMT FROM: Leo Singer at CIT/PTF L. P. Singer (Caltech), S. B. Cenko (UC Berkeley), and D. A. Brown (Syracuse) report on behalf of a larger collaboration: We have imaged the 3-sigma Swift UVOT error circle (P. Evans, GCN 14143) of GRB130122A (Swift546731, S. Barthelmy, GCN 14140) with the Palomar 48 inch Oschin telescope (P48) as part of the Palomar Transient Factory (PTF). Images were obtained in the Mould R filter at 2013-01-23 at 06:27:39 and 07:11:25 UTC, 6.7 and 7.5 hours after the trigger. With sporadic cloud cover and a bright moon, we find no point source, fading or otherwise, to 5-sigma limiting magnitudes of 19.1 and 18.4.