GRB160314A

This page lists all entries on GRB160314A in GRBweb

Summary IPN Swift GCN 19182 GCN 19183 GCN 19184 GCN 19185 GCN 19187 GCN 19188 GCN 19189 GCN 19190 GCN 19191 GCN 19192 GCN 19195 GCN 19196 GCN 19199 GCN 19200 GCN 19202 GCN 19203 GCN 19451

Summary table
Variable Value Source
T0 11:32:51 UTC GCN_circulars,Swift Det
ra 112.7905° Swift
decl 16.9997° Swift
pos_error 8.15e-05° Swift
T90 8.73 s Swift
T90_start 11:32:51 UTC Swift
fluence 2.80e-07 erg/cm² Swift
redshift 0.7260 GCN_circulars,Optical
T100 8.73 s
GBM_located False
mjd 57461.481145833335 GCN_circulars,Swift Det
IPN table
GRB_name GRB160314A
ra 112.7792°
decl 17.0000°
pos_error 5.00e-02°
redshift 0.7260
Swift table
GRB_name GRB160314A
t_trigger 11:32:51 UTC
ra 112.7905°
decl 16.9997°
pos_error 8.15e-05°
T90 8.73 s
fluence 2.80e-07 erg/cm²
redshift 0.7260
GCN 19182 table
GRB_name GRB160314A
GCN_number 19182
Detection_method Swift Det
t_trigger 11:32:51 UTC
ra 112.7810°
decl 17.0010°
Circular_text TITLE: GCN CIRCULAR NUMBER: 19182 SUBJECT: GRB 160314A: Swift detection of a burst DATE: 16/03/14 11:46:45 GMT FROM: Kim Page at U.of Leicester V. D'Elia (ASDC), A. A. Breeveld (UCL-MSSL), P.A. Evans (U Leicester), L. Izzo (URoma1), J. A. Kennea (PSU), A. Y. Lien (GSFC/UMBC), F. E. Marshall (NASA/GSFC), K. L. Page (U Leicester) and B. Sbarufatti (INAF-OAB/PSU) report on behalf of the Swift Team: At 11:32:51 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 160314A (trigger=679120). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 112.781, +17.001 which is RA(J2000) = 07h 31m 07s Dec(J2000) = +17d 00' 03" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a multi-peaked structure with a duration of about 20 sec. The peak count rate was ~1700 counts/sec (15-350 keV), at ~1 sec after the trigger. The XRT began observing the field at 11:34:22.7 UT, 91.0 seconds after the BAT trigger. Using promptly downlinked data we find an uncatalogued X-ray source with an enhanced position: RA, Dec 112.7891, 16.9987 which is equivalent to: RA(J2000) = 07h 31m 09.39s Dec(J2000) = +16d 59' 55.5" with an uncertainty of 2.1 arcseconds (radius, 90% containment). This location is 29 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. No spectrum from the promptly downlinked event data is yet available to determine the column density. UVOT took a finding chart exposure of 250 seconds with the U filter starting 151 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 0.08. Burst Advocate for this burst is V. D'Elia (delia 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.)
GCN 19183 table
GRB_name GRB160314A
GCN_number 19183
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 19183 SUBJECT: GRB 160314A: Weihai optical upper limit DATE: 16/03/14 13:05:43 GMT FROM: Dong Xu at NAOC/CAS D. Xu (NAOC/CAS), Y.-D. Hu (IAA-CSIC), Y. Qing (Geneva Observatory), Y.-H. Han (NAOC/CAS, HUST), C.-M. Zhang, S.-M. Hu, C. Cao (SDU) report: We observed the field of GRB 160314A (D'Elia et al., GCN 19182) using the 1-m telescope located at Weihai, Shandong, China. Observations started at 11:51:15 UT on 2016-03-14 (i.e., 18.4 min after the burst) in cloudy weather, and 4x300s R-band frames were obtained. No optical source is detected within the XRT error circle (D'Elia et al., GCN 19182), down to a limiting magnitude of m(R)~19.0, calibrated with the SDSS field.
GCN 19184 table
GRB_name GRB160314A
GCN_number 19184
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 19184 SUBJECT: GRB 160314A: ISON-Ussuriysk optical upper limit DATE: 16/03/14 14:35:44 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), E. Chornaya (UAFO), E. Mazaeva (IKI), A. Matkin (UAFO, ISON), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of the GRB 160314A (D'Elia et al., GCN 19182) with SANTEL-650 (0.65m) telescope of UAFO/ISON-Ussuriysk observatory starting on March, 14 (UT) 11:32:51. We obtained series of unfiltered images of 30 s exposure. We do not detect any optical afterglow within XRT error circle (D'Elia et al., GCN 19182). Photometry of a combined image of few first frames is following Date UT start t-T0 Filter Exp. OT U_limit (3sigma) (mid, days) (s) 2016-03-14 11:32:51 0.01728 none 3*30 n/d 18.7 The photometry is based on nearby SDSS star J073110.29+170129.9 assuming R_Lupton = 16.132.
GCN 19185 table
GRB_name GRB160314A
GCN_number 19185
Detection_method Swift-XRT Det
ra 112.7909°
decl 16.9994°
Circular_text TITLE: GCN CIRCULAR NUMBER: 19185 SUBJECT: GRB 160314A: Enhanced Swift-XRT position DATE: 16/03/14 16:43:43 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 1542 s of XRT Photon Counting mode data and 2 UVOT images for GRB 160314A, 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 = 112.79093, +16.99938 which is equivalent to: RA (J2000): 07h 31m 9.82s Dec (J2000): +16d 59' 57.8" with an uncertainty of 3.2 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 19187 table
GRB_name GRB160314A
GCN_number 19187
Detection_method Swift-UVOT Det
ra 112.7905°
decl 16.9997°
Circular_text TITLE: GCN CIRCULAR NUMBER: 19187 SUBJECT: GRB 160314A: Swift/UVOT Detection DATE: 16/03/14 19:04:28 GMT FROM: Mike Siegel at PSU/Swift MOC M. H. Siegel (PSU) and V. D'Elia (ASDC) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 160314A 151 s after the BAT trigger (D'Elia et al., GCN Circ. 19182). A source consistent with the XRT position (Osborne et al. GCN Circ. 19185) is detected in the initial UVOT exposures. The preliminary UVOT position is: RA (J2000) = 07:31:09.73 = 112.79053 (deg.) Dec (J2000) = +16:59:59.1 = 16.99974 (deg.) with an estimated uncertainty of 0.63 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 early exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag v 457 1825 175 >19.6 b 407 1775 175 >19.6 u 151 401 246 19.14 +/- 0.16 w1 506 1726 156 >18.8 m2 481 1849 174 >19.2 w2 432 1801 175 >19.3 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.08 in the direction of the burst (Schlegel et al. 1998).
GCN 19188 table
GRB_name GRB160314A
GCN_number 19188
Detection_method Swift-BAT Det
ra 112.7660°
decl 17.0240°
Circular_text TITLE: GCN CIRCULAR NUMBER: 19188 SUBJECT: GRB 160314A: Swift-BAT refined analysis DATE: 16/03/14 19:12:30 GMT FROM: Amy Lien at GSFC J. R. Cummings (GSFC/UMBC), S. D. Barthelmy (GSFC), V. D'Elia (ASDC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team): Using the data set from T-240 to T+962 sec from the recent telemetry downlink, we report further analysis of BAT GRB 160314A (trigger #679120) (D'Elia et al., GCN Circ. 19182). The BAT ground-calculated position is RA, Dec = 112.766, 17.024 deg which is RA(J2000) = 07h 31m 03.9s Dec(J2000) = +17d 01' 24.7" with an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment). The partial coding was 75%. The mask-weighted light curve shows a single-pulse structure that starts at ~ T0, peaks at ~ T+1 s, and ends at ~ T+9 s. T90 (15-350 keV) is 8.73 +- 1.52 sec (estimated error including systematics). The time-averaged spectrum from T-0.04 to T+9.31 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.53 +- 0.22. The fluence in the 15-150 keV band is 2.8 +- 0.4 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+1.12 sec in the 15-150 keV band is 0.9 +- 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/679120/BA/
GCN 19189 table
GRB_name GRB160314A
GCN_number 19189
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 19189 SUBJECT: GRB 160314A: Optical observations from OSN DATE: 16/03/14 20:42:32 GMT FROM: Antonio de Ugarte Postigo at IAA-CSIC A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), F. Aceituno (IAA-CSIC), C.C. Thoene (IAA-CSIC), L. Izzo (Uroma1), Z. Cano (U. Iceland) report: We observed the field of GRB 160314A (D’Elia et al., GCN 19182) with the 1.5 m Telescope at the Sierra Nevada Observatory, starting at 19:07 UT (7.57 hr after the burst). Observations were performed under non-optimal conditions, being affected by passing clouds. In a 5x300s exposure obtained in R-band we do not detect the optical counterpart candidate (Siegel et al, GCN 19187) down to a 3-sigma limiting magnitude of R ~ 21.0, as compared to USNO-B1.0 stars.
GCN 19190 table
GRB_name GRB160314A
GCN_number 19190
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 19190 SUBJECT: GRB 160314A: Swift-XRT refined Analysis DATE: 16/03/14 22:31:49 GMT FROM: Phil Evans at U of Leicester K.L. Page (U. Leicester), A. D'Ai (INAF-IASFPA), A. Maselli (INAF-IASFPA), A. Melandri (INAF-OAB), J.A. Kennea (PSU), B. Sbarufatti (INAF-OAB/PSU), D.N. Burrows (PSU), C. Pagani (U. Leicester), A.P. Beardmore (U. Leicester) and V. D'Elia report on behalf of the Swift-XRT team: We have analysed 7.9 ks of XRT data for GRB 160314A (D'Elia et al. GCN Circ. 19182), from 77 s to 24.8 ks after the BAT trigger. The data comprise 6 s in Windowed Timing (WT) mode (taken while Swift was slewing), with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Osborne et al. (GCN Circ. 19185). The light curve can be modelled with a power-law decay with a decay index of alpha=1.38 (+/-0.11). A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 2.02 (+0.22, -0.15). The best-fitting absorption column is 6.7 (+5.2, -0.5) x 10^20 cm^-2, consistent with the Galactic value of 6.2 x 10^20 cm^-2 (Willingale et al. 2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.2 x 10^-11 (3.8 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 6.7 (+5.2, -0.5) x 10^20 cm^-2 Galactic foreground: 6.2 x 10^20 cm^-2 Excess significance: <1.6 sigma Photon index: 2.02 (+0.22, -0.15) If the light curve continues to decay with a power-law decay index of 1.38, the count rate at T+24 hours will be 1.8 x 10^-4 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 6.0 x 10^-15 (7.0 x 10^-15) erg cm^-2 s^-1. The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00679120. This circular is an official product of the Swift-XRT team.
GCN 19191 table
GRB_name GRB160314A
GCN_number 19191
Detection_method Optical
ra 112.7905°
decl 16.9996°
Circular_text TITLE: GCN CIRCULAR NUMBER: 19191 SUBJECT: GRB 160314A: NOT afterglow observations DATE: 16/03/14 22:35:45 GMT FROM: Daniele Malesani at Dark Cosmology Centre, Niels Bohr Inst D. Malesani (DARK/NBI), A. de Ugarte Postigo (IAA-CSIC and DARK/NBI), T. Kruehler (MPE Garching), A. Kvammen (Univ. Tromsoe, Norway, and NOT), report on behalf of a larger collaboration: We observed the optical counterpart of GRB 160314A (D'Elia et al., GCN 19182; Siegel & D'Elia, GCN 19187) with the Nordic Optical Telescope (NOT) equipped with the AlFOSC imager. Our observations were carried out in the r and i bands, and started on 2016 March 14.86 (9.07 hr after the GRB). An object at a position consistent with the UVOT object is detected in both filters. We measure its coordinates to be (J2000; 0.3" uncertainty): RA = 07:31:09.73 Dec = +16:59:58.7 At a mean epoch of Mar 14.865 UT, we measure for the afterglow r = 22.40 +- 0.06 (AB), calibrated against nearby SDSS stars. We thus confirm the UVOT object as the afterglow of GRB 160314A. We note that a faint object is marginally detected at the afterglow position in the SDSS data, visible after stacking the gri images. This could be a relatively bright host galaxy for GRB 160314A. A finding chart is available at the following link: http://www.astro.ku.dk/~malesani/GRB/160314A/160314A_NOT_SDSS.jpg
GCN 19192 table
GRB_name GRB160314A
GCN_number 19192
Detection_method Optical
redshift 0.7260
Circular_text TITLE: GCN CIRCULAR NUMBER: 19192 SUBJECT: GRB 160314A: VLT/X-shooter redshift DATE: 16/03/15 08:59:11 GMT FROM: Valerio D'Elia at ASDC V. D'Elia (INAF-OAR/ASI-ASDC), D. Xu (NAOC/CAS), D. Malesani, J. P. U. Fynbo (DARK/NBI), H. Flores (GEPI/Paris obs), K. Wiersema (U. of Leicester) and D. Watson (DARK/NBI) report on behalf of a larger collaboration: We observed the afterglow of GRB 160314A (D'Elia et al., GCN 19182) with ESO's Very Large Telescope UT2 equipped with X-shooter. Our observations started at 00:15:42 UT on 2016 March 15, about 12h 45m after the Swift trigger, and consisted of four spectra of 1200 s each. The X-shooter spectra cover the range between 3000 and 21000 AA, and were obtained at a seeing of around 0.7. A preliminary analysis of the spectrum shows several emission features at the position of the optical transient (Siegel and D'Elia, GCN 19187; Malesani et al. GCN 19191), which we interpret as emission lines of Halpha, Hbeta, Hgamma, [O III], [O II], [S III] and [N II] from the host galaxy at redshift 0.726. Weak absorption features due to Fe II levels are marginally detected at the same redshift. We acknowledge the fast and efficient support provided by Paranal staff. In particular we thank Boris Haeussler, Giovanni Carraro, Jose Velasquez, Willem-Jan de Wit and Henri Boffin for their excellent job. We also thank Jens Hoeijmakers for postponing his visitor programme allowing us to perform this observation.
GCN 19195 table
GRB_name GRB160314A
GCN_number 19195
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 19195 SUBJECT: GRB 160314A: Mondy optical observations DATE: 16/03/15 19:09:27 GMT FROM: Alexei Pozanenko at IKI, Moscow E. Mazaeva (IKI), A. Volnova (IKI), E. Klunko (ISTP), I. Korobtsev (ISTP), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of the GRB 160314A (D'Elia et al., GCN 19182) with AZT-33IK telescope of Sayan observatory (Mondy) starting on March, 14 (UT) 16:13:52. The optical counterpart of GRB 160314A (D'Elia et al., GCN 19182; Siegel & D'Elia, GCN 19187) is clearly visible in a combined image. Preliminary photometry of the combined image is following Date UT start t-T0 Filter Exp. OT OT_err (mid, days) (s) 2016-03-14 16:13:52 0.21784 R 64*60 21.82 0.18 SDSS-DR9_id R(Lupton) J073110.30+170129.8 16.13 J073114.43+170052.5 17.95 J073119.52+170015.1 17.13 J073110.88+170047.1 19.53 J073104.14+170112.8 19.88
GCN 19196 table
GRB_name GRB160314A
GCN_number 19196
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 19196 SUBJECT: GRB 160314A: RATIR Optical and NIR Observations DATE: 16/03/15 20:32:00 GMT FROM: Alan M. Watson at Instituto de Astronomia UNAM Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), Ori Fox (STScI), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (GSFC/STScI), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), José A. de Diego (UNAM), Leonid Georgiev (UNAM), Jesús González (UNAM), Carlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC), Harvey Moseley (GSFC), John Capone (UMD), V. Zach Golkhou (ASU), and Vicki Toy (UMD) report: We observed the field of GRB 160314A (D'Elia et al., GCN Circ. 19182) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astronómico Nacional on Sierra San Pedro Mártir from 2016/03 15.13 to 2016/03 15.36 UTC (15.59 to 21.16 hours after the BAT trigger), obtaining a total of 3.56 hours exposure in the r and i bands and 1.49 hours exposure in the Z, Y, J, and H bands. For a source within the Swift-XRT error circle (Osborne et al., GCN Circ. 19185), in comparison with the SDSS DR9 and 2MASS catalogs, we obtain the following detections and 3-sigma upper limit: r 22.83 +/- 0.10 i 22.37 +/- 0.06 Z 22.27 +/- 0.15 Y 22.40 +/- 0.21 J 21.93 +/- 0.19 H > 22.38 These magnitudes are in the AB system and are not corrected for Galactic extinction in the direction of the GRB. Compared to the NOT observations reported by Malesani et al. (GCN Circ. 19191), we detect fading in r at the 3.7-sigma level between mean epochs of 9.2 and 18.4 hours after the bursts. This confirms that the NOT source is the optical counterpart of the GRB. We thank the staff of the Observatorio Astronómico Nacional in San Pedro Mártir.
GCN 19199 table
GRB_name GRB160314A
GCN_number 19199
Detection_method correction
Circular_text TITLE: GCN CIRCULAR NUMBER: 19199 SUBJECT: GRB 160314A: ISON-Ussuriysk optical upper limit, updated photometry and correction of GCN 19184 DATE: 16/03/16 06:14:44 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), E. Chornaya (UAFO), E. Mazaeva (IKI), A. Matkin (UAFO, ISON), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: After receiving full data set of our observations (GCN 19184) we refine photometry and correct UT time of the observations. The field of the GRB 160314A (D'Elia et al., GCN 19182) was observed with SANTEL-650 (0.65m) telescope of UAFO/ISON-Ussuriysk observatory starting on March, 14 (UT) 11:56:51 under clear sky but with a high ground wind speed. We obtained series of unfiltered images of 30 s exposure. In a combined image we do not detect optical afterglow (D'Elia et al., GCN 19182; Siegel & D'Elia, GCN 19187; Malesani et al., GCN 19191). Photometry of combined images is following Date UT start t-T0 Filter Exp. OT U_limit (3sigma) (mid, days) (s) 2016-03-14 11:56:51 0.01728 none 3*30 n/d 18.7 2016-03-14 11:56:51 0.04575 none 30*30 n/d 20.1 The photometry is based on nearby SDSS star J073110.29+170129.9 assuming R_Lupton = 16.132.
GCN 19200 table
GRB_name GRB160314A
GCN_number 19200
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 19200 SUBJECT: GRB 160314A: GROND optical/NIR observations DATE: 16/03/16 15:55:55 GMT FROM: Jan Bolmer at MPE/Garching T. Schweyer, J. Bolmer and J. Greiner (all MPE Garching) report on behalf of the GROND team: We observed the field of GRB 160314A (Swift trigger 679120; D'Elia et al., GCN #19182) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2m MPG telescope at the ESO La Silla Observatory (Chile). Observations started at 23:53 UT on 2016-03-15, 36.3h after the GRB trigger. They were performed at an average seeing of 1.1" and at an average airmass of 1.5. We clearly detect the source reported by Malesani et al. (GCN #19191) and Butler et al. (GCN #19196). Based on 90 min of exposure in g'r'i'z' and 96 min in JHK, at a mid-time of 00:44 UT on 2016-03-16, we derive the following preliminary magnitudes and upper limits (all in the AB system): g' = 23.3 +/- 0.1 mag, r' = 23.1 +/- 0.1 mag, i' = 22.6 +/- 0.1 mag, z' = 22.5 +/- 0.1 mag, J > 22.2 mag, H > 21.8 mag, and K > 20.4 mag. Given detections and upper limits are calibrated against SDSS as well as 2MASS field stars. No correction for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V)=0.07 mag in the direction of the burst (Schlafly & Finkbeiner 2011) has been applied. Our r'-band magnitude, combined with that of RATIR (Butler et al., GCN #19196) suggests a very slow fading, possibly indicating that we are close to the brightness of the host galaxy (Malesani et al. GCN #19191, D'Elia et al., GCN #19192).
GCN 19202 table
GRB_name GRB160314A
GCN_number 19202
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 19202 SUBJECT: Continued RATIR Optical and NIR Observations DATE: 16/03/16 22:00:02 GMT FROM: V. Zach Golkhou at ASU/RATIR V. Zach Golkhou (ASU), Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), Ori Fox (STScI), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (GSFC/STScI), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), José A. de Diego (UNAM), Leonid Georgiev (UNAM), Jesús González (UNAM), Carlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC), Harvey Moseley (GSFC), John Capone (UMD), and Vicki Toy (UMD) report: We observed the field of GRB 160314A (D'Elia et al., GCN 19182) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astronómico Nacional on Sierra San Pedro Mártir from 2016/03 16.12 to 2016/03 16.35 UTC (39.43 to 44.80 hours after the BAT trigger), obtaining a total of 3.56 hours exposure in the r and i bands and 1.49 hours exposure in the Z, Y, J, and H bands. For a source within the Swift-XRT error circle (Osborne et al., GCN 19185), in comparison with the SDSS DR9 and 2MASS catalogs, we obtain the following detections and 3-sigma upper limit: r 23.48 +/- 0.26 i 22.84 +/- 0.16 Z 22.08 +/- 0.17 Y 22.32 +/- 0.22 J > 22.45 H 21.87 +/- 0.25 These magnitudes are in the AB system and are not corrected for Galactic extinction in the direction of the GRB. Our observations (see, also, Butler et al., GCN 19196) are consistent with a continued, slow source fading as reported by the GROND team (Schweyer et al, GCN 19200). We thank the staff of the Observatorio Astronómico Nacional in San Pedro Mártir. GCN OPS NOTE(16Mar2016) Circular 19202 was mistakenly submitted without a GRB-name designation. See 19203 for the corrected circular. Per author's request 19202 was removed from the archive.
GCN 19203 table
GRB_name GRB160314A
GCN_number 19203
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 19203 SUBJECT: GRB 160314A: Continued RATIR Optical and NIR Observations DATE: 16/03/16 22:03:39 GMT FROM: V. Zach Golkhou at ASU/RATIR V. Zach Golkhou (ASU), Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), Ori Fox (STScI), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (GSFC/STScI), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), José A. de Diego (UNAM), Leonid Georgiev (UNAM), Jesús González (UNAM), Carlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC), Harvey Moseley (GSFC), John Capone (UMD), and Vicki Toy (UMD) report: We observed the field of GRB 160314A (D'Elia et al., GCN 19182) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astronómico Nacional on Sierra San Pedro Mártir from 2016/03 16.12 to 2016/03 16.35 UTC (39.43 to 44.80 hours after the BAT trigger), obtaining a total of 3.56 hours exposure in the r and i bands and 1.49 hours exposure in the Z, Y, J, and H bands. For a source within the Swift-XRT error circle (Osborne et al., GCN 19185), in comparison with the SDSS DR9 and 2MASS catalogs, we obtain the following detections and 3-sigma upper limit: r 23.48 +/- 0.26 i 22.84 +/- 0.16 Z 22.08 +/- 0.17 Y 22.32 +/- 0.22 J > 22.45 H 21.87 +/- 0.25 These magnitudes are in the AB system and are not corrected for Galactic extinction in the direction of the GRB. Our observations (see, also, Butler et al., GCN 19196) are consistent with a continued, slow source fading as reported by the GROND team (Schweyer et al, GCN 19200). We thank the staff of the Observatorio Astronómico Nacional in San Pedro Mártir.
GCN 19451 table
GRB_name GRB160314A
GCN_number 19451
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 19451 SUBJECT: GRB 160314A: 15 GHz upper limits from AMI DATE: 16/05/23 18:53:30 GMT FROM: Kunal Mooley at Oxford U K. P. Mooley, T. D. Staley, R. P. Fender (Oxford), G. E. Anderson (Curtin), C. Rumsey, D. Titterington, S. Carey, J. Hickish, Y. C. Perrott, N. Razavi-Ghods, P. Scott (Cambridge), K. Grainge, A. Scaife (Manchester) The AMI Large Array robotically triggered on the Swift alert for GRB 160314A (D'Elia et al., GCN 19182) as part of the 4pisky program, and subsequent follow up observations were obtained up to 10 days post-burst. Our observations at 15 GHz on 2016 Mar 14.65, Mar 15.81, Mar 17.73, Mar 21.82, and Mar 24.91 (UT) do not reveal any radio source at the XRT location (Osborne et al., GCN 19185), with 3sigma upper limits of 280 uJy, 100 uJy, 270 uJy, 100 uJy, and 320 uJy respectively. We thank the AMI staff for scheduling these observations. The AMI-GRB database is a log of all GRB follow up observations with the AMI, and is available at http://4pisky.org/ami-grb/.