GRB120119A

This page lists all entries on GRB120119A in GRBweb

Summary Fermi GBM IPN Swift GCN 12859 GCN 12860 GCN 12861 GCN 12863 GCN 12864 GCN 12865 GCN 12866 GCN 12867 GCN 12871 GCN 12872 GCN 12874 GCN 12876 GCN 12877 GCN 12878 GCN 12880 GCN 12881 GCN 12882 GCN 12883 GCN 12884 GCN 12892 GCN 12894 GCN 12895 GCN 12897 GCN 12898

Summary table
Variable Value Source
GRB_name_Fermi GRB120119170
T0 4:04:25.060 UTC GCN_circulars,Fermi GBM Det
ra 120.0289° Swift
decl -9.0816° Swift
pos_error 7.64e-05° Swift
T90 55.297 s Fermi_GBM
T90_error 6.229 s Fermi_GBM
T90_start 4:04:28.136 UTC Fermi_GBM
fluence 3.87e-05 erg/cm² Fermi_GBM
fluence_error 1.36e-07 erg/cm² Fermi_GBM
redshift 1.7280
T100 258.95 s
GBM_located False
mjd 55945.169734490744 GCN_circulars,Fermi GBM Det
Fermi GBM table
GRB_name_Fermi GRB120119170
trigger_name bn120119170
ra 120.0292°
decl -9.8031°
pos_error 2.56e+00°
datum 2012-01-19
t_trigger 4:04:25.064 UTC
T90 55.297 s
T90_error 6.229 s
T90_start 4:04:28.136 UTC
fluence 3.87e-05 erg/cm²
fluence_error 1.36e-07 erg/cm²
flux_1024 1.69e+01 erg/cm²/s
flux_1024_error 3.91e-01 erg/cm²/s
flux_1024_time 1.45e+01 erg/cm²/s
flux_64 2.24e+01 erg/cm²/s
flux_64_error 1.71e+00 erg/cm²/s
IPN table
GRB_name GRB120119A
ra 120.0292°
decl -9.0667°
pos_error 5.00e-02°
redshift 1.7280
Swift table
GRB_name GRB120119A
t_trigger 4:04:30.210 UTC
ra 120.0289°
decl -9.0816°
pos_error 7.64e-05°
T90 253.8 s
fluence 1.70e-05 erg/cm²
redshift 1.7280
GCN 12859 table
GRB_name GRB120119A
GCN_number 12859
Detection_method Swift Det
t_trigger 4:04:30.210 UTC
ra 120.0270°
decl -9.0740°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12859 SUBJECT: GRB 120119A: Swift detection of a burst with an optical counterpart DATE: 12/01/19 04:22:23 GMT FROM: Scott Barthelmy at NASA/GSFC A. P. Beardmore (U Leicester), S. D. Barthelmy (GSFC), M. M. Chester (PSU), N. Gehrels (NASA/GSFC), J. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA), N. P. M. Kuin (UCL-MSSL), O. M. Littlejohns (U Leicester), F. E. Marshall (NASA/GSFC), K. L. Page (U Leicester), M. H. Siegel (PSU), C. A. Swenson (PSU) and T. N. Ukwatta (MSU) report on behalf of the Swift Team: At 04:04:30.21 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 120119A (trigger=512035). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 120.027, -9.074, which is RA(J2000) = 08h 00m 07s Dec(J2000) = -09d 04' 25" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows at least three peaks with a total duration of at least 50 sec. The peak count rate was ~16,000 counts/sec (15-350 keV), at ~10 sec after the trigger. The XRT began observing the field at 04:05:23.4 UT, 53.3 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 120.0293, -9.0803 which is equivalent to: RA(J2000) = +08h 00m 7.03s Dec(J2000) = -09d 04' 49.1" with an uncertainty of 4.7 arcseconds (radius, 90% containment). This location is 24 arcseconds from the BAT onboard position, within the BAT error circle. No event data are yet available to determine the column density using X-ray spectroscopy. The initial flux in the 2.5 s image was 1.06e-08 erg cm^-2 s^-1 (0.2-10 keV). UVOT took a finding chart exposure of 150 seconds with the White filter starting 61 seconds after the BAT trigger. There is a candidate afterglow in the rapidly available 2.7'x2.7' sub-image at RA(J2000) = 08:00:06.94 = 120.02890 DEC(J2000) = -09:04:53.7 = -9.08157 with a 90%-confidence error radius of about 0.66 arc sec. This position is 4.8 arc sec. from the center of the XRT error circle. The estimated magnitude is 19.67 with a 1-sigma error of about 0.16. No correction has been made for the expected extinction corresponding to E(B-V) of 0.11. Burst Advocate for this burst is A. P. Beardmore (apb AT star.le.ac.uk). 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 12860 table
GRB_name GRB120119A
GCN_number 12860
Detection_method correction
Circular_text TITLE: GCN CIRCULAR NUMBER: 12860 SUBJECT: GRB 120119A: PAIRITEL NIR Detection DATE: 12/01/19 04:42:48 GMT FROM: Adam Morgan at U.C. Berkeley A. N. Morgan, and J. S. Bloom (UC Berkeley) report: We observed the field of GRB 120119A (Beardmore et al., GCN 12859) with the 1.3m PAIRITEL located at Mt. Hopkins, Arizona. Observations began at 2012-Jan-19 04h05m23s UT, ~53 seconds after the Swift trigger. In mosaics (effective exposure time of 560 seconds) taken simultaneously in the J, H, and Ks filters, we detect a source at the position of the optical afterglow. The preliminary photometry yields: post burst t_mid (m) exp.(s) filt mag m_err 10.3 560 J 14.35 0.02 10.3 560 H 13.10 0.02 10.3 560 Ks 11.95 0.02 All magnitudes are given in the Vega system, calibrated to 2MASS. No correction for Galactic extinction has been made to the above reported values. Observations are continuing. [GCN OPS NOTE(19jan11): Per author's request, the start time in the 3rd line was changed from "04h07m15s UT, ~2.7 minutes" to "04h05m23s UT, ~53 seconds".]
GCN 12861 table
GRB_name GRB120119A
GCN_number 12861
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12861 SUBJECT: GRB 120119A: Liverpool Telescope afterglow detection DATE: 12/01/19 04:51:56 GMT FROM: Andreja Gomboc at LT,ARI,Liverpool JMU A. Gomboc (University of Ljubljana, CE Space.si) reports on behalf of a large collaboration: The 2-m Liverpool Telescope responded automatically to Swift trigger 512035. Following observations with RINGO-2 polarimeter, observations in r' i' and z' filter started at 14.5 min after the BAT trigger time. We clearly detect the afterglow in all three filters consistent with the UVOT position (Beardmore et al. GCN Circ. 12859).
GCN 12863 table
GRB_name GRB120119A
GCN_number 12863
Detection_method GROND
Circular_text TITLE: GCN CIRCULAR NUMBER: 12863 SUBJECT: GRB 120119A: GROND Detection of the Optical/NIR Afterglow DATE: 12/01/19 05:27:34 GMT FROM: Patricia Schady at MPE/Swift P. Schady, V. Sudilovsky, J. Greiner (all MPE Garching) and T.Kruehler (DARK/NBI) report on behalf of the GROND team: We observed the field of GRB 120119A (Swift trigger 512035; Beardmore et al., GCN #12859) 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 04:08 UT, 3.5 min after the GRB trigger, and are continuing. They were performed at an average seeing of 0.9" and at an average airmass of 1.0. We found a single point source consistent with the UVOT afterglow position. Based on the first 2.4 min of total exposures in g'r'i'z' and 4 min in JHK, we estimate preliminary magnitudes (all in AB) of g' = 18.8 +- 0.1 mag, r' = 17.7 +- 0.1 mag, i' = 16.8 +- 0.1 mag, z' = 16.2 +- 0.1 mag, J = 15.2 +- 0.1 mag, H = 14.6 +- 0.1 mag and K = 14.0 +- 0.1mag Given magnitudes are calibrated against SDSS zeropoints as well as 2MASS field stars and are not corrected for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V)=0.11 mag in the direction of the burst (Schlegel et al. 1998).
GCN 12864 table
GRB_name GRB120119A
GCN_number 12864
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12864 SUBJECT: GRB 120119A: PROMPT optical observation of early afterglow DATE: 12/01/19 05:29:06 GMT FROM: Aaron LaCluyze at U.North Carolina A. LaCluyze, J. Haislip, K. Ivarsen, D. Reichart, J. Moore, M. Nysewander, A. Trotter, R. Egger, A. Foster, A. Oza, T. Cromartie, E. Speckhard, and J. A. Crain report: Skynet observed the field of GRB 120119A with the PROMPT telescopes located at CTIO in Chile. Observations in B, R, and I began at 04:05:08 UT, 38 seconds after the burst. We detect an optical source consistent with the UVOT position reported by Beardmore et. al. (GCN 12859) in all three filters. The optical afterglow faded for the first ~2.3 minutes, then brightened until approximately minute 14, after which it resumed fading. The afterglow is red, with (I - R) ~ 1 mag and (R - B) ~ 2 mag. A preliminary light curve can be found at: http://skynet.unc.edu/grb/grb120119a.png Further observations are ongoing.
GCN 12865 table
GRB_name GRB120119A
GCN_number 12865
Detection_method Swift-BAT Det
redshift 1.7280
Circular_text TITLE: GCN CIRCULAR NUMBER: 12865 SUBJECT: GRB 120119A: Gemini-S redshift DATE: 12/01/19 06:01:56 GMT FROM: Antonino Cucchiara at UCSC/UCO Lick A. Cucchiara, J. X. Prochaska (UCSC/UCO Lick) report on behalf of a larger collaboration: On January 19.20 UT (53 minutes after the BAT trigger) we observed the optical counterpart of GRB 120119A (Beardmore et al., GCN 12859) using GMOS-South on the Gemini-South 8-m telescope. Spectroscopic observation covering 4000-8000 Angstrom wavelength range reveals several absorption features, including AlIII1854, 1862, FeII2586,2600, MnII2606, MgII2796,2803 at a common redshift of 1.728. Also at least an intervening system is present at z=1.212 based on strong MgII2796 absorption features. We therefore suggest this to be the redshift of GRB 120119A. We thank the Gemini staff for performing this observation.
GCN 12866 table
GRB_name GRB120119A
GCN_number 12866
Detection_method Other
redshift 1.7300
Circular_text TITLE: GCN CIRCULAR NUMBER: 12866 SUBJECT: GRB 120119A: Lick 3m Spectroscopy DATE: 12/01/19 06:23:08 GMT FROM: Antonino Cucchiara at UCSC/UCO Lick Anna Pancoast (UCSB), Rebecca Rosen (Cal Poly), Vardha Bennert (Cal Poly), A. Cucchiara (UCO) and J. Xavier Prochaska (UCO) on behalf of GRAASP report: "We observed the afterglow of GRB 120119 with the Kast dual spectrometer for 1800s total starting at UT 05:30 under fine conditions. Analysis of the red side exposure shows strong absorption from ZnII and FeII transitions at a common redshift of z=1.73 confirming the reported redshift of Cucciara & Prochaska (GCN 12865). Further analysis is in progress. This GCN may be cited.
GCN 12867 table
GRB_name GRB120119A
GCN_number 12867
Detection_method Optical
redshift 1.7280
Circular_text TITLE: GCN CIRCULAR NUMBER: 12867 SUBJECT: GRB 120119A: MMT redshift confirmation DATE: 12/01/19 06:24:14 GMT FROM: Edo Berger at Harvard D. Milisavljevic, M. Drout, and E. Berger (Harvard) report: "We obtained an optical spectrum of GRB 120119A (GCN 12859) with the Blue Channel spectrograph mounted on the MMT 6.5-m telescope. In a single 1800 sec exposure covering 3500-8500 Ang we find a wide range of absorption features (from CII1335 to MgI2853) at a common redshift of z=1.728, confirming the results of Cucchiara & Prochaska (GCN 12865)."
GCN 12871 table
GRB_name GRB120119A
GCN_number 12871
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12871 SUBJECT: GRB 120119A: optical observations DATE: 12/01/19 12:57:41 GMT FROM: Alexei Pozanenko at IKI, Moscow L. Elenin (KIAM), A. Volnova (SAI MSU), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of the Swift GRB 120119A (Beardmore et al., GCN 12859) with 0.45-m telescope ISON-NM observatory on Jan. 19. We took several unfiltered images of 60 s exposure on Jan.19, starting (UT) 05:19:52. We clearly detect the OT source (Beardmore et al., GCN 12859). Coordinates of the source are (J2000) 08 00 06.96 -09 04 54.4 which is consistent with UVOT position (GCN 12859). Photometry of the source is based on SDSS star J080000.59-090624.3 (08:00:00.60 -09:06:24.4) assuming R=16.42: t-t0 filter Exp. OT (mid, days) (s) 0.05234 none 600 18.97 +/- 0.09 0.06039 none 600 18.84 +/- 0.08 0.06837 none 600 19.13 +/- 0.11 0.08321 none 1500 19.51 +/- 0.07 0.10178 none 1500 19.70 +/- 0.08 0.12128 none 1500 19.99 +/- 0.08 0.13989 none 1500 19.86 +/- 0.08 Looking for the photometry result one can suggest either plateau phase or the start of a re-brightening episode at ~ 0.14d.
GCN 12872 table
GRB_name GRB120119A
GCN_number 12872
Detection_method Konus-Wind Det
t_trigger 4:04:34.872 UTC
redshift 1.7300
Circular_text TITLE: GCN CIRCULAR NUMBER: 12872 SUBJECT: Konus-Wind observation of GRB 120119A DATE: 12/01/19 13:18:14 GMT FROM: Dmitry Frederiks at Ioffe Institute S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, report: The long GRB 120119A (Swift-BAT trigger #512035: Beardmore et al., GCN 12859) triggered Konus-Wind at T0=14674.872s UT (04:01:34.872) The burst light curve shows a multi-peaked pulse with a total duration of ~61 s. The emission is seen up to ~7 MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB120119_T14674/ As observed by Konus-Wind the burst had a fluence of (4.7 0.6)x10-5 erg/cm2, and a 256-ms peak flux, measured from T0+16.384 s, of (3.9 0.5)x10-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range). The time-integrated spectrum of the burst (measured from T0 to T0+49.152 s) is best fitted in the 20 keV - 10 MeV range with the GRB (Band) model, for which: the low-energy photon index alpha = -0.85 (-0.16, +0.20), the high energy photon index beta = -2.34 (-0.22, +0.15), the peak energy Ep = 153(-19, +21) keV, chi2 = 73.5/84 dof. The spectrum of the initial pulse (measured from T0 to T0+16.384 s) is best fitted is best fitted in the 20 keV - 10 MeV range with the GRB (Band) model, for which: the low-energy photon index alpha = -0.92 (-0.13, +0.14), the high energy photon index beta = -2.41 (-0.35, +0.16), the peak energy Ep = 192(-21, +29) keV, chi2 = 72.4/84 dof. Assuming the redshift z=1.73 (Cucchiara & Prochaska, GCN 12865; Pancoast et al., GCN 12866; Milisavljevic et al., GCN 12867) and a standard cosmology model with H_0 = 71 km/s/Mpc, Omega_M = 0.27, Omega_Lambda = 0.73, the isotropic energy release E_iso is (3.6 0.5)x10^53 erg, the isotropic peak luminosity L_iso_max is (5.1 0.7)x10^52 erg/s, and Ep_rest is (265 35) keV. All the quoted results are preliminary. All the quoted errors are at the 90% confidence level.
GCN 12874 table
GRB_name GRB120119A
GCN_number 12874
Detection_method Fermi GBM Det
t_trigger 4:04:25.060 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 12874 SUBJECT: GRB 120119A: Fermi GBM observation DATE: 12/01/19 15:24:03 GMT FROM: David Gruber at MPE David Gruber (MPE) reports on behalf of the Fermi GBM Team: "At 04:04:25.06 UT on 19 January 2012, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 120119A (trigger 348638667 / 120119170). which was also detected by the Swift/BAT and Swift/XRT (Beardmore et al. 2012, GCN 12859) The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 31.4 degrees. This burst was also independently detected by INTEGRAL SPI-ACS. The GBM light curve shows several overlapping pulses with a duration (T90) of about 55 s (50-300 keV). The time-averaged spectrum from T0-1.5 s to T0+53.8 s is best fit by a Band function with Epeak = 189.2 +/- 8.3 keV, alpha = -0.98 +/- 0.03, and beta = -2.36 +/- 0.09. The event fluence (10-1000 keV) in this time interval is (3.87 +/- 0.01)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0+14.5 s in the 10-1000 keV band is 16.86 +/- 0.39 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN 12876 table
GRB_name GRB120119A
GCN_number 12876
Detection_method Swift-XRT Det
ra 120.0288°
decl -9.0818°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12876 SUBJECT: GRB 120119A: Enhanced Swift-XRT position DATE: 12/01/19 17:52:23 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 6070 s of XRT Photon Counting mode data and 12 UVOT images for GRB 120119A, 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 = 120.02875, -9.08177 which is equivalent to: RA (J2000): 08h 00m 6.90s Dec (J2000): -09d 04' 54.4" with an uncertainty of 1.4 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 12877 table
GRB_name GRB120119A
GCN_number 12877
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 12877 SUBJECT: GRB 120119A: Swift-XRT refined Analysis DATE: 12/01/19 18:22:07 GMT FROM: Phil Evans at U of Leicester V. D'Elia (ASDC), V. Mangano (INAF-IASFPA), M.C. Stroh (PSU), D.N. Burrows (PSU), J.A. Kennea (PSU), K.L. Page (U. Leicester), C. Pagani (U. Leicester), A. Melandri (INAF-OAB) and A.P. Beardmore report on behalf of the Swift-XRT team: We have analysed 9.1 ks of XRT data for GRB 120119A (Beardmore et al. GCN Circ. 12859), from 59 s to 30.4 ks after the BAT trigger. The data comprise 332 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Beardmore et al. (GCN. Circ 12876). The light curve can be modelled with an initial power-law decay with an index of alpha=2.58 (+/-0.08), followed by a break at T+167 s to an alpha of 1.008 (+0.017, -0.018). A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.93 (+/-0.07). The best-fitting absorption column is 2.18 (+0.22, -0.21) x 10^21 cm^-2, in excess of the Galactic value of 7.9 x 10^20 cm^-2 (Kalberla et al. 2005). The PC mode spectrum has a photon index of 1.68 (+0.13, -0.12) and a best-fitting absorption column of 2.1 (+0.5, -0.4) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.7 x 10^-11 (6.0 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 2.1 (+0.5, -0.4) x 10^21 cm^-2 Galactic foreground: 7.9 x 10^20 cm^-2 Excess significance: 4.9 sigma Photon index: 1.68 (+0.13, -0.12) The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00512035. This circular is an official product of the Swift-XRT team.
GCN 12878 table
GRB_name GRB120119A
GCN_number 12878
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12878 SUBJECT: GRB 120119A: SMARTS optical/IR afterglow observations DATE: 12/01/19 19:46:55 GMT FROM: Bethany Cobb at GWU B. E. Cobb (GWU), reports: Using the ANDICAM instrument on the 1.3m telescope at CTIO, we obtained optical/IR imaging of the error region of GRB 120119A (GCN 12859, Beardmore et al.) over several epochs, starting ~0.6 hours post-burst. For the first epoch, several dithered images were obtained in each filter, with total summed exposure times of 180s in each of BRIJK and 120s in each of H and V. For later epochs, total summed exposure times amounted to 15 minutes in I and V and 12 minutes in J and K. At a mid-exposure time of 2012-01-19 04:43 UT (0.64 hrs post-burst), the GRB afterglow (e.g. GCN 12859, Beardmore et al., GCN 12860, Morgan et al., GCN 12863, Schady et al.) is detected with the following magnitudes: B = 20.07 +/- 0.06 V = 18.91 +/- 0.05 R = 18.02 +/- 0.03 I = 16.96 +/- 0.03 J = 15.14 +/- 0.05 H = 14.02 +/- 0.06 K = 12.89 +/- 0.10 Between about 0.6 hrs and 3 hrs post-burst, the GRB afterglow fades with a decay rate of approximately alpha = 1.6 (where afterglow flux is proportional to t^-alpha). time post-burst I-band magnitude 0.64 hrs 16.96 +/- 0.03 1.71 hrs 18.52 +/- 0.03 2.97 hrs 19.39 +/- 0.05 (Optical photometry is calibrated against Landolt standard stars and IR photometry is calibrated against 2MASS stars in the field.)
GCN 12880 table
GRB_name GRB120119A
GCN_number 12880
Detection_method Swift-UVOT Det
ra 120.0289°
decl -9.0816°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12880 SUBJECT: GRB 120119A: Swift/UVOT Observations DATE: 12/01/19 20:29:33 GMT FROM: Margaret Chester at PSU M. M. Chester (PSU) and A. P. Beardmore (U Leicester) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 120119A 62 s after the BAT trigger (Beardmore et al., GCN Circ. 12859). A source consistent with the XRT position (Beardmore et al., GCN Circ. 12876) is detected in the initial UVOT exposures. The preliminary UVOT position is: RA (J2000) = 08:00:06.93 = 120.02889 (deg.) Dec (J2000) = -09:04:53.7 = -9.08159 (deg.) with an estimated uncertainty of 0.59 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) are: Filter T_start(s) T_stop(s) Exp(s) Mag white_FC 62 211 147 19.5 +/- 0.1 white 62 1997 205 19.5 +/- 0.1 white 6130 30955 1112 21.9 +/- 0.4 v 1682 2048 58 >19.1 v 7810 12009 926 >20.8 b 1608 1973 58 19.4 +/- 0.3 b 5926 30829 1967 >22.0 u_FC 273 302 28 >18.7 u 273 1948 66 >19.3 u 5720 29917 1967 >21.7 w1 1731 1923 39 >19.1 w1 12921 25179 1511 >21.5 m2 1706 2073 58 >19.3 m2 12014 12914 885 >21.2 w2 1658 2022 58 >19.5 w2 6336 7804 242 >20.6 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.11 in the direction of the burst (Schlegel et al. 1998).
GCN 12881 table
GRB_name GRB120119A
GCN_number 12881
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12881 SUBJECT: GRB 120119A: optical observations DATE: 12/01/20 09:20:57 GMT FROM: Alexei Pozanenko at IKI, Moscow L. Elenin (KIAM), A. Volnova (SAI MSU), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of the Swift GRB 120119A (Beardmore et al., GCN 12859) with 0.45-m telescope ISON-NM observatory on Jan. 20 between (UT) 05:59:24 - 06:53:16. We do not detect the OT at the UVOT position reported in GCN 12880 (Chester et al.). However we detect the source with coordiantes (J2000) 08 00 06.97 -09 04 56.6 with uncertainties of 0.1" (in both coordinates) which is differ from OT coordinates calculated in the first epoch of our observations (Elenin et al, GCN 12871). This source coincide with SDSS source SDSSJ080006.97-090456.8 (r=21.05) and is also visible at DSS2 image (R). Photometry of this source at 1.0987 days after burst (mean time) is 21.1 +/- 0.2 and based on SDSS star J080005.86-090434.9 (J2000) 08 00 05.868 -09 04 34.91 assuming R=18.05.We suggest that the source could be a host galaxy of GRB 120119A. All results are preliminary.
GCN 12882 table
GRB_name GRB120119A
GCN_number 12882
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12882 SUBJECT: GRB120119A: REM NIR observations DATE: 12/01/20 09:36:12 GMT FROM: Dino Fugazza at INAF-OAB D. Fugazza, P. D'Avanzo, A. Melandri (INAF-OAB), L. A. Antonelli (INAF-OAR/ASI-ASDC) report on behalf of the CIBO collaboration: We observed the field of GRB 120119A (Beardmore et al., GCN 12859) with the REMIR infrared camera, mounted on the 60-cm robotic REM telescope at La Silla, starting 2.5 min after the burst. The optical/NIR afterglow (Beardmore et al. GCN 12859; Morgan & Bloom GCN 12860; Gomboc GCN 12861; Schady et al. GCN 12863; Elenin et al. GCN 12871; Cobb GCN 12878) is clearly detected in the H-band. The light curve shows a plateau from about 4.5 min to 10 min after the burst with an observed magnitude of H~13.4, peaks at about T-T0=15 min with H~13.0 and then displays a significant decay. The last detection is at T-T0=3.8 hr with a magnitude of H~16.0. The magnitudes are calibrated against the 2MASS catalogue.
GCN 12883 table
GRB_name GRB120119A
GCN_number 12883
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12883 SUBJECT: GRB 120119A: TAROT La Silla observatory optical observations DATE: 12/01/20 09:47:40 GMT FROM: Alain Klotz at CESR-CNRS Klotz A. (IRAP-CNRS-OMP), Gendre B. (ASDC/INAF-OAR), Boer M. (UNS-CNRS-OCA), Atteia J.L. (IRAP-CNRS-OMP) report: We imaged the field of GRB 120119A detected by SWIFT (trigger 512035) with the TAROT robotic telescope (D=25cm) located at the European Southern Observatory, La Silla observatory, Chile. The observations started 33.0s after the GRB trigger (9.2s after the notice) using the trigger time origin at 04:04:30.21 UT (Beardmore et al. GCNC 12859). The elevation of the field increased from 67 degrees above horizon and weather conditions were good. We observed during 4.35h until the dawn allowing a continuous follow up of the afterglow discovered by Beardmore et al. (GCNC 12859). The first image is trailed with a duration of 60.0s (see the description in Klotz et al., 2006, A&A 451, L39). This image was obtained during the fading of the gamma emission. We extracted three measurements from the trail. A first magnitude extraction is reported in the following table. As noticed by LaCluyze et al. (GCNC 12864), the optical emission decreased slowly in the range 33s to 200s, then it increased to reach a maximum R=16.8 at 850 +/- 50s. A decay phase alpha=1.3 occured between 10^3 and 10^4 seconds. As noticed by Elenin et al. (GCNC 12871) the begining of a plateau is suspected after 10^4 seconds. The end of the night over Chile does not allow to conclude definitively. Note that the GRB was also observed at TAROT Calern (France) but data are poor due to the low elevation of the field. However, the afterglow is also detected in the TAROT Calern images. ------------------------------------------ t1(min) t2(min) mag dmag ------------------------------------------ 0.55 0.85 16.96 0.30 0.85 1.15 17.15 0.30 1.15 1.55 17.05 0.30 1.67 2.17 17.32 0.16 2.34 2.84 17.37 0.12 3.01 3.51 17.58 0.22 3.67 4.17 17.53 0.17 4.34 4.84 17.27 0.17 10.36 11.86 17.02 0.26 12.03 13.53 16.87 0.20 13.70 15.20 17.03 0.15 15.37 16.87 16.94 0.18 17.03 18.53 17.19 0.29 18.70 20.20 17.19 0.11 21.31 22.81 17.27 0.24 22.97 24.47 17.37 0.16 24.64 26.14 17.35 0.09 26.31 27.81 17.32 0.19 27.98 29.48 17.40 0.06 29.64 31.14 17.59 0.05 35.98 38.98 17.65 0.05 39.15 42.15 18.00 0.21 45.48 48.48 18.09 0.06 48.65 51.65 18.31 0.25 55.66 58.66 18.39 0.15 58.83 61.83 18.58 0.26 42.32 84.94 18.51 0.12 65.16 91.28 19.10 0.15 95.40 126.40 19.51 0.09 129.73 195.34 19.78 0.12 199.45 261.71 19.90 0.08
GCN 12884 table
GRB_name GRB120119A
GCN_number 12884
Detection_method Swift-BAT Det
ra 120.0290°
decl -9.0760°
Circular_text TITLE: GCN CIRCULAR NUMBER: 12884 SUBJECT: GRB 120119A, Swift-BAT refined analysis DATE: 12/01/20 22:42:20 GMT FROM: Hans Krimm at NASA-GSFC M. Stamatikos (OSU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), A. P. Beardmore (U Leicester), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC), J. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team): Using the data set from T-239 to T+395 sec from the recent telemetry downlink, we report further analysis of BAT GRB 120119A (trigger #512035) (Beardmore, et al., GCN Circ. 12859). The BAT ground-calculated position is RA, Dec = 120.029, -9.076 deg which is RA(J2000) = 08h 00m 06.9s Dec(J2000) = -09d 04' 35.3" with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%. The mask-weighted light curve shows a series of three overlapping peaks running from T-10 sec to T+220 sec, with the bulk of emission before T+60 sec. T90 (15-350 keV) is 253.8 +- 24.5 sec (estimated error including systematics). Swift started to enter the South Atlantic Anomaly at T+ ~200 sec and collection of event data was terminated at T+395 sec. The time-averaged spectrum from T-13.2 to T+361.9 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.38 +- 0.04. The fluence in the 15-150 keV band is 1.7 +- 0.0 x 10^-5 erg/cm2. The 1-sec peak photon flux measured from T+9.21 sec in the 15-150 keV band is 10.3 +- 0.3 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/512035/BA/
GCN 12892 table
GRB_name GRB120119A
GCN_number 12892
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 12892 SUBJECT: GRB 120119A: optical upper limit DATE: 12/01/21 22:00:47 GMT FROM: Alexei Pozanenko at IKI, Moscow V. Rumyantsev, K. Grankin (CrAO), A. Pozanenko (IKI) on behalf of larger GRB follow up collaboration report: We observed the field of the Swift GRB 120119A (Beardmore et al., GCN 12859) with AZT-11 telescope of CrAO observatory on Jan. 19. We took several images in R-filter under poor seeing (FWHM ~ 4.4") on Jan.19, between (UT) 18:35 - 19:59. We do not detect the OT (Beardmore et al. GCN 12859). Photometry is based on USNO-B1.0 star 0809-0167535 (08 00 04.98 -09 03 55.5) assuming R=16.22: t-t0 filter Exp. UpperLimit (mid, days) (s) 0.6347 R 28x180 21.1
GCN 12894 table
GRB_name GRB120119A
GCN_number 12894
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 12894 SUBJECT: GRB 120119A: GRT detection of early afterglow DATE: 12/01/22 02:16:11 GMT FROM: Takanori Sakamoto at NASA/GSFC T. Sakamoto (UMBC/GSFC), D. Donato (ORAU/GSFC), N. Gehrels (GSFC), T. Okajima (GSFC), Y. Urata (NCU) We observed the field of GRB 120119A detected by Swift (trigger #512035; Beardmore et al., GCN Circ. 12859) with the 14-inch Goddard Robotic Telescope (GRT) located at the Goddard Geophysical and Astronomical Observatory (http://cddisa.gsfc.nasa.gov/ggao/). A total 294 images of 5 sec (200 images), 30 sec (60 images) and 60 sec (34 images) exposures were taken in the R filter starting from January 19 04:06:42 (UT), about 132 seconds after the trigger (114 seconds after the BAT position notice), and stopped on January 19 06:07:50 (UT). We detect the optical afterglow inside the XRT error circle (Beardmore et al., GCN Circ. 12876) in the stacked image of good quality 5 sec exposure images (total exposure of 985 sec). The estimated magnitude is R = 17.24 +- 0.19 mag (start time: 04:06:42, stop time: 04:44:37). We do not detected the afterglow in the stacked images of 30 sec exposure images (total exposure of 1560 sec) and 60 sec exposure images (total exposure of 2040 sec). The estimated five sigma upper limits of those stacked images are ~17.9 mag (start time: 04:44:55, stop time: 05:30:01) and ~18.0 mag (start time: 05:30:17, stop time: 06:07:50). All the reported magnitudes are estimated using the USNO-B1 catalog.
GCN 12895 table
GRB_name GRB120119A
GCN_number 12895
Detection_method VLA Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 12895 SUBJECT: GRB 120119A: EVLA observations DATE: 12/01/22 23:17:26 GMT FROM: Ashley Zauderer at CfA A. Zauderer and E. Berger (Harvard) report on behalf of a larger collaboration: "We observed the position of GRB 120119A (GCN 12859) with the EVLA beginning 2012 Jan 21.2 UT (2.0 days after the burst) at a mean frequency of 5.8 GHz. No significant radio emission is detected at the enhanced Swift-XRT position (GCN 12876), the UVOT position (GCN 12859) or optical position (e.g. GCN 12881), to a three-sigma upper limit of 34 uJy."
GCN 12897 table
GRB_name GRB120119A
GCN_number 12897
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 12897 SUBJECT: GRB 120119A : SMA submm follow-up observation DATE: 12/01/24 02:54:46 GMT FROM: Yuji Urata at Nat. Central U. Y. Urata (NCU), S. Takahashi, K.Y. Huang (ASIAA) and G. Petitpas (SMA) We observed the field of GRB120119A (Siegel et al., GCN 12720) with the Sub-Millimeter Array (SMA). The observation in the 225 GHz band was started at January 19 11.1 UT (7.1 hours after the trigger). Our preliminary analysis show no counterpart brighter than 8.1 mJy (3-sigma).
GCN 12898 table
GRB_name GRB120119A
GCN_number 12898
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 12898 SUBJECT: GRB 120119A : LOAO Optical Observations DATE: 12/01/24 09:13:48 GMT FROM: Minsung Jang at Seoul National U M. Jang, M. Im (SNU), and Y. Urata (NCU) on behalf of EAFON We observed GRB 120119A (GCN 12859, Beardmore et al.) in B,V,R- bands with a 1 m telescope at Mt. Lemmon, Arizona, US. The observation began at 06:03:31 UT, ~ 2 hours after burst alert. We took 3 frames for each filter with the exposure time, 300 secs The afterglow candidate was detected in stacked images of all three filters with a preliminary magnitude R ~ 20.3 +/- 0.2 mag. The photometry calibration is based on two USNO B1.0 stars, USNO-B1.0 0809-0167573 and 0808-0168858 We thank the LOAO operator, J. Yoon for his help with the observation.