We observed the field of GRB 090516 (Rowlinson et al. GCN 9374) with the Stardome 0.4m telescope located in Auckland (New Zealand) starting at 09:25UT. We used a SG530 filter that transmits wavelengths above 5300 Angstroms and a SBIG ST-L-6303E CCD (KAF-6303E detector). A 9x300s combined exposure with mean epoch 16.4080 May (80 minutes after the burst) shows an object at the position of the afterglow (Guidorzi...Full Text

We have observed the field covering the error circle of GRB 090516 (Swift trigger 352190, GCN 9374, Rowlinson et al.) with the unfiltered CCD camera on the 30-cm telescope at University of Miyazaki. The observation was started 11:16:08 UT (1.8 hr after the Swift trigger), under cloudy condition. First image was obtained at 11:17:11 UT (1.8 hr after the Swift trigger). We have compared our data...Full Text

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We have reanalysed the spectrum of the afterglow of GRB 090516 (Rowlinson et al., GCN 9374; Guidorzi et al., GCN 9375) obtained with the ESO VLT (de Ugarte Postigo et al. GCN 9381). Due to an error in the preliminary reduction, the wavelength calibration had an offset that has been now corrected. In our new analysis we detect a strong Ly-alpha absorption together with absorption lines of NV,...Full Text

We observed the field of GRB 090516 (Swift trigger 352190, B. Rowlinson et al.,GCN 9374) simultaneously in g'r'i'z'JHK with GROND mounted at the 2.2m ESO/MPI telescope at La Silla Observatory (Chile). Observations started on 16 May 2009 at 23:04 UT, 14.6 h after the burst. We detect the afterglow at a position consistent with the enhanced XRT error circle (A. Beardmore et al., GCN 9376) and NOT...Full Text

SOURCE: GCN TITLE: GCN CIRCULAR NUMBER: 9381 SUBJECT: GRB 090516: VLT redshift DATE: 09/05/17 02:47:56 GMT FROM: Antonio Deugarte at IAA-CSIC <deugarte@iaa.es> A. de Ugarte Postigo (ESO), J. Gorosabel (IAA/CSIC), D. Malesani, J.P.U. Fynbo (DARK/NBI), A. J. Levan (Univ. Warwick), report on behalf of a larger collaboration: We observed the optical afterglow of GRB 090516 (Rowlinson...Full Text

T.P. Vaalsta, Liang Yan, J. Zadko, H. Miao, J. Moore, K. Frost, D. Coward, A. Imerito, D. Blair, R. Burman, P. Luckas, S. Gordon, A. Fletcher, A. Ahmet, (University of Western Australia) M. Todd, M. Zadnik (Curtin University) M. Boer, A. Klotz (TAROT) The 1.0m F/4 Zadko telescope started imaging the field of GRB 090516 (trigger=352190, D. Palmer et al., GCN 9374) 275 minutes after the Swift trigger...Full Text

We observed the optical afterglow of GRB 090516 (Guidorzi et al. GCN 9375) with the 2.5m NOT(+STANCAM) telescope. On May 16.889 UT (12.9 hours post GRB) the afterglow shows an R-band magnitude of R=21.3+/-0.1 against USNO-B1.0 field stars. ...Full Text

We have analysed 3.0 ks of XRT data for GRB 090516 (Rowlinson et al. GCN 9374), from 170 s to 6.4 ks after the BAT trigger. The data comprise 327 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 9376). The light curve can be modelled with a power-law decay with two flares superimposed...Full Text

The Swift/UVOT began observing the field of GRB 090516 171s after the BAT trigger (Beardmore et al., GCN 9374). Data summed from the first and second orbits does not reveal a source at the refined position of the X-ray afterglow (Beardmore et al., GCN 9376). The 3-sigma upper limits for the finding chart (fc) and summed exposures are reported below: FILTER T_start(s) T_stop Exposure...Full Text

Using 2534 s of XRT Photon Counting mode data and 5 UVOT images for GRB 090516, 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 = 138.26050, -11.85442 which is equivalent to: RA (J2000): 09h 13m 2.52s Dec (J2000): -11d 51' 15.9" with an uncertainty of 1.5 arcsec (radius, 90% confidence). This position...Full Text

The 2-m Faulkes Telescope South reacted to the Swift burst GRB 090516 (trigger=352190, Rowlinson et al. GCN 9374). Observations started about 16.9 min after the trigger time with filters BRi. Within the XRT error circle we found a fading source at the following position (J2000): RA: 09:13:02.62 Dec: -11:51:15.4 with an initial approximate magnitude of R~19 at 17 minutes post trigger. ...Full Text

At 08:27:50 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 090516 (trigger=352190). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 138.271, -11.858 which is RA(J2000) = 09h 13m 05s Dec(J2000) = -11d 51' 27" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed...Full Text