GRB080514B

This page lists all entries on GRB080514B in GRBweb

Summary IPN GCN 7715 GCN 7716 GCN 7718 GCN 7719 GCN 7720 GCN 7722 GCN 7723 GCN 7724 GCN 7725 GCN 7730 GCN 7734 GCN 7745 GCN 7750 GCN 7751 GCN 7752 GCN 7759 GCN 7760 GCN 7874

Summary table
Variable Value Source
T0 9:55:58.672 UTC GCN_circulars,Konus-Wind Det
ra 322.8208° IPN
decl 0.7333° IPN
pos_error 2.83e-01° IPN
GBM_located False
mjd 54600.41387351852 GCN_circulars,Konus-Wind Det
IPN table
GRB_name GRB080514B
ra 322.8208°
decl 0.7333°
pos_error 2.83e-01°
GCN 7715 table
GRB_name GRB080514B
GCN_number 7715
Detection_method IPN Triangulation
ra 322.9620°
decl 21.5308°
Circular_text TITLE: GCN CIRCULAR NUMBER: 7715 SUBJECT: GRB 080514B: SuperAGILE/IPN GRB Localization DATE: 08/05/14 19:06:44 GMT FROM: Marco Feroci at IASF/INAF M. Rapisarda, E. Costa, E. Del Monte, I. Donnarumma, Y. Evangelista, M. Feroci, I. Lapshov, F. Lazzarotto, L. Pacciani, P. Soffitta, (INAF/IASF Rome), A. Giuliani, S. Vercellone, A. Chen, S. Mereghetti, A. Pellizzoni, F. Perotti, F. Fornari, M. Fiorini, P. Caraveo (INAF/IASF Milan), A. Bulgarelli, F. Gianotti, M. Trifoglio, G. Di Cocco, C. Labanti, F. Fuschino, M. Marisaldi, M. Galli, (INAF/IASF Bologna), M. Tavani, G. Pucella, F. D'Ammando, V. Vittorini, A. Argan, A. Trois (INAF/IASF Rome), G. Barbiellini, F. Longo (INFN Trieste), P. Cattaneo (INFN Pavia), P. Picozza, A. Morselli (INFN Roma-2), M. Prest, E. Vallazza (Universita' dell'Insubria), P. Lipari, D. Zanello (INFN Roma-1), and P. Giommi, C. Pittori, B. Preger, F. Verrecchia (ASDC) and L. Salotti (ASI), on behalf of the AGILE Team, K. Hurley, on behalf of the Mars Odyssey team, I. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin, on behalf of the HEND-Odyssey GRB team, and W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on behalf of the GRS-Odyssey GRB team, report: "SuperAGILE and AGILE/MCAL detected a gamma ray burst on May 14th, at 09:55:56 UT. The event was localized by SuperAGILE at approximately 38 degrees off axis, in the one-dimensional portion of its field of view, thus providing a narrow and long error box. The narrow side is 6 arcmin wide, while the long side is approximately 40 degrees wide. In the 20-60 keV energy range the event had a 10s duration, with a multi-peaked structure. The same event was also detected by Mars Odyssey. The IPN was thus able to reduce the SuperAGILE error box to the 100 sq arcmin error box whose corners are given by the following coordinates (RA, Dec): 322.962 (21h 31m 50.81s) 0.733 (0d 43m 59.69s) 322.774 (21h 31m 5.74s) 0.667 (0d 40m 2.78s) 322.867 (21h 31m 27.99s) 0.806 (0d 48m 21.16s) 322.678 (21h 30m 42.80s) 0.740 (0d 44m 23.63s) The centroid of the error box is at (RA, Dec)= (322.820, 0.737) and the maximal distance between the box corners is 0.283 deg, that is 16.9 arcmin. The event occurred in the field of view of the AGILE GRID. A report on the AGILE/GRID data analysis will follow shortly. We urge follow-up observations at all wavelengths." This message may be cited.
GCN 7716 table
GRB_name GRB080514B
GCN_number 7716
Detection_method IPN Triangulation
Circular_text TITLE: GCN CIRCULAR NUMBER: 7716 SUBJECT: GRB 080514B: possible AGILE detection at E>50 MeV DATE: 08/05/14 19:13:06 GMT FROM: Sandro Mereghetti at IASF/CNR A. Giuliani, F. Fornari, S. Mereghetti, S. Vercellone, A. Chen, A. Pellizzoni, F. Perotti, M. Fiorini, P. Caraveo, A. Zambra (INAF/IASF Milan), P. Soffitta, I. Donnarumma, E. Del Monte, M. Feroci, Y. Evangelista, E. Costa, I. Lapshov, F. Lazzarotto, L. Pacciani, M. Rapisarda (INAF/IASF Rome), A. Bulgarelli, F. Gianotti, M. Trifoglio, G. Di Cocco, C. Labanti, F. Fuschino, M. Marisaldi, M. Galli, (INAF/IASF Bologna), M. Tavani, G. Pucella, F. D'Ammando, V. Vittorini, A. Argan, A. Trois (INAF/IASF Rome), G. Barbiellini, F. Longo (INFN Trieste), G. De Paris, P. Picozza, A. Morselli (INFN Roma-2), M. Prest, E. Vallazza (Universita' dell'Insubria), P. Lipari, D. Zanello (INFN Roma-1), and P. Giommi, C. Pittori, (ASDC) and L. Salotti (ASI), on behalf of the AGILE Team, report: "A quick look analysis of the AGILE GRID data of GRB 080514B (Rapisarda et al. GCN 7715) shows a possible detection at energies E>50 MeV at a position consistent with the SuperAGILE-IPN localization. We have requested a ToO observation of the SuperAGILE-IPN error box with the Swift satellite. We encourage follow-up observations at other wavelengths." This message may be cited.
GCN 7718 table
GRB_name GRB080514B
GCN_number 7718
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 7718 SUBJECT: GRB 080514B: Watcher observations DATE: 08/05/15 04:33:22 GMT FROM: Antonio Deugarte at IAA-CSIC P. Kubanek (IAA-CSIC, GACE), J. French (UCD), A. de Ugarte Postigo (ESO) report on behalf of a larger collaboration: The 0.4m WATCHER telescope located at Boyden Observatory, South Africa, has observed the field of GRB 080514B (Rapisarda et al., GCN 7715) starting at May 15.042 UT (~15.1 hours after the burst) in a sequence of 120s R band exposures. A combined image covering ~90% of the error box does not show any new source down to a limiting magnitude of R>19 at a mean epoch of May 15.076 UT. Further analysis is ongoing.
GCN 7719 table
GRB_name GRB080514B
GCN_number 7719
Detection_method Other
ra 322.8445°
decl 0.7080°
Circular_text TITLE: GCN CIRCULAR NUMBER: 7719 SUBJECT: GRB 080514B: Afterglow candidate DATE: 08/05/15 05:40:09 GMT FROM: Antonio Deugarte at IAA-CSIC A de Ugarte Postigo (ESO), A. Castro-Tirado, J. Gorosabel, M. Jelinek (IAA-CSIC), P. Kubanek (IAA-CSIC, GACE) A. Garcia, A. Pimienta, E. Curras (IAC), C. Pereira (Armagh Obs.), on behalf of a larger collaboration report: We have observed the error box of GRB080514B (Rapisarda et al., GCN 7715) from the 0.8m IAC80 telescope at Izaa Observatory (Spain) in I-band starting on May 15.133 (17.3 hours after the burst) There is a source with a mag of I~20.4, not present in the SDSS-i at the following coordinates (J2000 +/-1"): R.A.: 21:31:22.69 Dec.: +00:42:28.9 Further observations are encouraged to confirm if this is related to the GRB.
GCN 7720 table
GRB_name GRB080514B
GCN_number 7720
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 7720 SUBJECT: GRB 080514B: Finding chart DATE: 08/05/15 06:14:48 GMT FROM: Antonio Deugarte at IAA-CSIC A de Ugarte Postigo (ESO), A. Castro-Tirado, J. Gorosabel, M. Jelinek (IAA-CSIC), P. Kubanek (IAA-CSIC, GACE) A. Garca, A. Pimienta, E. Curras (IAC), C. Pereira (Armagh Obs.), on behalf of a larger collaboration report: A finding chart of the optical candidate of GRB 080514B (Rapisarda et al., GCN 7715) reported in GCN 7719, compared to the SDSS-i frame can be found at: http://www.sc.eso.org/~adeugart/GRB/080514B/GRB080514B.jpg
GCN 7722 table
GRB_name GRB080514B
GCN_number 7722
Detection_method GROND
Circular_text TITLE: GCN CIRCULAR NUMBER: 7722 SUBJECT: GRB 080514B, GROND observations DATE: 08/05/15 07:59:26 GMT FROM: Sylvio Klose at TLS Tautenburg A. Rossi (Tautenburg), A. Kupcu-Yoldas, J. Greiner (MPE Garching), S. Klose, R. Filgas (Tautenburg), A. Yoldas, T. Kruehler (MPE), and G. Szokoly (Eoetvoes Univ. Budapest and MPE) report on behalf of the GROND team: We observed the field of GRB 080514B (Rapisarda et al., GCN 7715; Giuliani et al., GCN 7716) simultaneously in g'r'i'z'JHK using the multi-channel imager GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2m MPI/ESO telescope on La Silla (Chile). Observations started at 7:03 UT, about 21 h after the burst. The afterglow candidate reported by de Ugarte Postigo et al. (GCN 7719) is detected in g'r'i'z'. Preliminary photometry yields g' = 19.95 +/- 0.2, calibrated against NOMAD field stars. Observations are ongoing. We thank Antonio de Ugarte Postigo (ESO) for a rapid communication of the finding chart.
GCN 7723 table
GRB_name GRB080514B
GCN_number 7723
Detection_method Swift-XRT Other
ra 322.8443°
decl 0.7084°
Circular_text TITLE: GCN CIRCULAR NUMBER: 7723 SUBJECT: GRB 080514B: Swift-XRT analysis DATE: 08/05/15 08:19:04 GMT FROM: Kim Page at U.of Leicester K.L. Page, A.P. Beardmore (U. Leicester), S. Mereghetti (INAF - IASF Milano), M. Feroci and M. Tavani (INAF/IASF Roma) report on behalf of the Swift-XRT and AGILE teams: Following a ToO request, Swift-XRT started observing the field of GRB 080514B at 20:12 on 14th May, about 37 ks after the trigger. Within the SuperAGILE/IPN error box, there are two sources detected, one of which is much brighter and appears to be fading. We therefore believe this to be the X-ray afterglow of the GRB. Using 925 s of overlapping XRT Photon Counting mode and UVOT data, 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 = 322.84426, 0.70843 which is equivalent to: RA (J2000): 21 31 22.62 Dec (J2000): +00 42 30.3 with an uncertainty of 1.6 arcsec (radius, 90% confidence). This position is 1.7 arcsec from the i-filter object mentioned by de Ugarte Postigo et al., in GCN Circ. 7719. A spectrum of the three orbits of Photon Counting (PC) mode data (6 ks of data, spanning 37-49 ks after the trigger) can be modelled with an absorbed power-law of Gamma = 2.06 +0.35/-0.31 and NH = (1.2 +0.8/-0.6)x10^21 cm^-2, which is slightly in excess of the Galactic value of 3.75x10^20 cm^-2. The observed (unabsorbed) 0.3-10 keV flux is 2.34x10^-12 (3.14x10^-12) erg cm^-2 s^-1. This corresponds to an observed counts to flux conversion of 1 count = 3.96x10^-11 erg cm^-2. The light-curve can be fitted with a single power-law, with a slope of alpha = 1.5 +/- 1.0. If the light-curve continues to follow this decay, the count rate at 48 hours is predicted to be 6.6x10^-3 count s^-1 (an observed flux of 2.6x10^-13 erg cm^-2 s^-1). This circular is an official product of the Swift-XRT team.
GCN 7724 table
GRB_name GRB080514B
GCN_number 7724
Detection_method GROND
Circular_text TITLE: GCN CIRCULAR NUMBER: 7724 SUBJECT: GRB 080514B: slow fading behaviour ? DATE: 08/05/15 09:35:14 GMT FROM: Aybuke, Kupcu Yoldas at MPE A. Rossi (Tautenburg), A. Kupcu-Yoldas, J. Greiner (MPE Garching), S. Klose, R. Filgas (Tautenburg), A. Yoldas, T. Kruehler (MPE), and G. Szokoly (Eoetvoes Univ. Budapest and MPE) report on behalf of the GROND team: We continued observing the field of GRB 080514B (Rapisarda et al., GCN 7715; Giuliani et al., GCN 7716) simultaneously in g'r'i'z'JHK using the multi-channel imager GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2m MPI/ESO telescope on La Silla (Chile). We detect a very slow fading behaviour in the afterglow brightness. The i' band magnitude dropped ~0.05 magnitudes within 1.5 hours, resulting in i'~20.9 around 08:20 UT. This magnitude is ~0.5 magnitudes fainter than the i-band magnitude given by Ugarte et al. (GCN 7719). Please note that the g' magnitude mentioned in GCN 7722 has a typo; it should be g' = 21.2.
GCN 7725 table
GRB_name GRB080514B
GCN_number 7725
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 7725 SUBJECT: GRB 080514B: KPNO 4m IR observations DATE: 08/05/15 11:32:00 GMT FROM: Adria C. Updike at Clemson U Adria C. Updike, Ginger Bryngelson, and Dieter H. Hartmann (Clemson University) report on behalf of the Clemson GRB Follow-Up Team: We observed GRB 080514B (Hurley et al., GCN 7715) using the KPNO 4m telescope and the NEWFIRM NIR imager under decent weather conditions. In 4 min of stacked exposures beginning 24 hours and 20 minutes after the trigger, we detect the afterglow (Postigo et al., GCN 7719) at J = 19.8 +/- 0.2 (as calibrated to the 2MASS catalog). Observations are ongoing. This message may be cited.
GCN 7730 table
GRB_name GRB080514B
GCN_number 7730
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 7730 SUBJECT: GRB 080514B : redshift estimation DATE: 08/05/15 16:24:56 GMT FROM: Bruce Gendre at LAM-OAMP B. Gendre (LAM/CNRS/Universite de Provence), A. Galli (IASF-Roma/INAF), M. Bor (OHP/CNRS) report : Using the XRT analysis reported by Page et al. (GCN 7723), we extrapolated an X-ray flux of 4.8 10^-13 cgi 1 day after the burst (2-10 keV). Using the Boer & Gendre relation, we estimate the redshift of GRB 080514B to be either 2.8 or 0.9 if this event is a group I or II respectively (see Gendre, Galli & Bor, ApJ, in press), with uncertainties of 30%. Further constraints on the redshift could be set by B observations of the afterglow candidate reported in de Ugarte Postigo et al. (GCN 7719). This message can be cited.
GCN 7734 table
GRB_name GRB080514B
GCN_number 7734
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 7734 SUBJECT: GRB 080514B: NOT observations DATE: 08/05/16 06:06:27 GMT FROM: Daniele Malesani at Niels Bohr Inst,Dark Cosmology Center D. Malesani (DARK/NBI), P.E. Nissen (Univ. Aarhus), W.J. Schuster (UNAM), and J.P.U. Fynbo (DARK/NBI), report on behalf of a larger collaboration: We observed the afterglow of GRB 080514B (Rapisarda et al., GCN 7715; Giuliani et al., GCN 7716; de Ugarte Postigo et al., GCN 7719) with the NOT equipped with ALFOSC. Observations were carried out with the B, R and I filters. We clearly detect the afterglow in all bands. On mean time May 16.184 UT (1.77 days after the trigger), we measure R = 22.52 +- 0.10 (AB), calibrated against SDSS r magnitudes. The detection in B implies a redshift limit z < 3.7.
GCN 7745 table
GRB_name GRB080514B
GCN_number 7745
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 7745 SUBJECT: GRB 080514B: Further NIR observations DATE: 08/05/18 03:40:55 GMT FROM: Adria C. Updike at Clemson U Adria C. Updike, Ginger Bryngelson, and Dieter H. Hartmann (Clemson University) report on behalf of the Clemson GRB Follow-Up Team: We re-imaged the field of GRB 080514B (Hurley et al., GCN 7715) with the KPNO 4m + NEWFIRM under good weather conditions. We obtained 15 minutes in the J and H bands approximately 48 hours after the trigger. In stacked images, we marginally detect the afterglow (Postigo et al., GCN 7719) at J = 20.7 +/- 0.3 (calibrated to the 2MASS catalog). We do not detect the afterglow in the H band with a limiting magnitude of 20.2. This message may be cited.
GCN 7750 table
GRB_name GRB080514B
GCN_number 7750
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 7750 SUBJECT: GRB 080514B: second epoch Swift XRT data confirms the X-ray afterglow DATE: 08/05/19 10:23:12 GMT FROM: Paolo Esposito at INAF-IASF,Milano P. Esposito, A. De Luca, A. Tiengo, G. Vianello (INAF-IASF MI), K.L. Page (U. Leicester) report: GRB 080514B was discovered by the SuperAGILE detector on May 14th, at 09:55:56 UT (Rapisarda et al., GCN Circ. 7715) and possibly detected at energies E>50 MeV in AGILE GRID data (Giuliani et al., GCN Circ. 7716). The first Swift/XRT observation was performed on May 14th at 20:12, starting about 37 ks after the GRB trigger (Page et al., GCN Circ. 7723). A likely afterglow candidate was found, with a flux decay described by a power-law (slope: 1.5+/-1.0; GCN Circ. 7723). The spectrum was modelled with an absorbed ( 1.2x10^21 cm^-2) power-law, with photon index = 2.06 (GCN Circ. 7723). Swift/XRT observed again the field of GRB 080514B on May 16th at 20:13, about 58 hours after the trigger. 6 ks of data in Photon Counting mode were collected in three consecutive orbits, spanning 5 hours. The candidate X-ray afterglow (GCN Circ. 7723) is significantly detected with a 0.3-10 keV observed flux of (1.9+/-0.8)x10^-13 erg cm^-2 s^-1 (assuming the spectrum of Circ. 7723). The new XRT data confirm the fading trend reported in (GCN Circ. 7723) and better constrain the decay slope at 1.6 +0.3/-0.2. We thank the Swift PI, N. Gehrels, for approval of this TOO, and the the Swift team (in particular the duty scientists and science planners) for performing it.
GCN 7751 table
GRB_name GRB080514B
GCN_number 7751
Detection_method Konus-Wind Det
t_trigger 9:55:58.672 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 7751 SUBJECT: Konus-Wind observation of GRB 080514B DATE: 08/05/19 13:14:50 GMT FROM: Valentin Pal'shin at Ioffe Inst S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, and T. Cline on behalf of the Konus-Wind team report: The bright GRB 080514B localized by SuperAGILE/IPN (Rapisarda et al., GCN 7715) triggered Konus-Wind at T0=35758.672 s UT (09:55:58.672). The burst light curve shows a multipeaked structure with a duration of ~7 s. As observed by Konus-Wind the burst had a fluence of 3.23(-0.26, +0.27)x10^-5 erg/cm2, and a 16-ms peak flux measured from T0+3.328 s of (2.07 +/- 0.43)x10^-5 erg/cm2/s (both in the 20 keV - 5 MeV energy range). The time-integrated spectrum of the burst (from T0 to T0+12.032 s) is well fitted (in the 20 keV-5 MeV range) by GRBM (Band) model for which: the low-energy photon index is alpha = -0.599(-0.134, +0.161), the high energy photon index beta = -2.48(-0.25, +0.18), the peak energy Ep = 224 (-22, +23) keV (chi2 = 72.3/76 dof). All the quoted errors are at the 90% confidence level. The Konus-Wind light curve of this GRB is available at http://www.ioffe.rssi.ru/LEA/GRBs/GRB080514_T35758/
GCN 7752 table
GRB_name GRB080514B
GCN_number 7752
Detection_method Suzaku WAM Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 7752 SUBJECT: GRB 080514B: Suzaku WAM observation of the prompt emission DATE: 08/05/20 06:20:41 GMT FROM: Yoshitaka Hanabata at Hiroshima U Y. Hanabata, T. Uehara, Y. Fukazawa, T. Takahashi, C. Kira (Hiroshima U.), M. Ohno, M. Kokubun, M. Suzuki, T. Takahashi (ISAS/JAXA), K. Yamaoka, S. Sugita (Aoyama Gakuin U.), K. Onda, M. Tashiro, Y. Terada, Y. Urata, A. Endo, N. Kodaka, K. Morigami, T. Sugasahara, W. Iwakiri (Saitama U.), Y. E. Nakagawa, T. Tamagawa (RIKEN), T. Enoto, K. Nakazawa, K. Makishima (Univ. of Tokyo), E. Sonoda, M. Yamauchi, H. Tanaka, R. Hara (Univ. of Miyazaki), S. Hong (Nihon U.), on behalf of the Suzaku WAM team, report: The long GRB 080514B, (SuperAGILE/IPN: Rapisarda et al., GCN7715 ) triggered the Suzaku Wide-band All-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV at 09:55:57 UT (=T0). The observed light curve shows a multi-peaked structure starting at T0-1s , ending at T0+7s, with a duration (T90) of about 6.3 seconds. The fluence in 100 - 1000 keV was 1.4(+0.2,-0.1) x 10^-5 erg/cm^2. The 1-s peak flux measured from T0+2s was 11.3(+0.5,-0.1) photons/cm^2/s in the same energy range. A preliminary result shows that the time-averaged spectrum from T0-1s to T0+7s is well fitted by a GRB Band model as follows. the low-energy photon index alpha: -1.4(+0.6,-0.5), the upper limit of the high-energy photon index beta: -2.5 and the peak energy Epeak: 259 (+43, -104) keV (chi^2/d.o.f = 27.9/23). ---- All the quoted errors are at statistical 90% confidence level, in which the systematic uncertainties are not included. ---- The light curves for this burst are available at: http://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html
GCN 7759 table
GRB_name GRB080514B
GCN_number 7759
Detection_method IPN Triangulation
ra 322.8446°
decl 0.7079°
Circular_text TITLE: GCN CIRCULAR NUMBER: 7759 SUBJECT: GRB 080514B: UVOT Observations DATE: 08/05/21 14:07:20 GMT FROM: Stephen Holland at USRA/NASA/GSFC/SSC S. T. Holland (CRESST/USRA/GSFC) reports on behalf of the Swift/UVOT team: The Swift/UVOT observed the field of GRB 080514B starting 37,005 s after the SuperAGILE/IPN detection (Rapisarda et al., GCN Circ. 7715). We detect the optical afterglow in the b, u, uvw1, and uvm2 filters at the location of the IAC80 optical afterglow (de Ugarte Postigo, et al., 2008, GCNC 7719). The UVOT source position is RA(J2000) = 21:31:22.71 Dec(J2000) = +00:42:28.4 with an estimated uncertainty of +/-0.60 arcsec (radius, 90% confidence). Magnitudes and upper limits are reported below. Filter T_start (s) T_stop Exposure Mag Err Comment v 38,184 43,906 352 >20.1 3-sigma UL b 37,449 48,630 559 20.92 0.27 u 37,229 48,415 559 19.97 0.17 uvw1 37,005 48,198 1118 20.74 0.24 uvm2 38,333 44,537 1030 20.83 0.32 uvw2 37,601 49,441 2199 >22.1 3-sigma UL white 209,879 228,394 5360 >23.3 3-sigma UL The above magnitudes and upper limits are not corrected for the Galactic extinction along the line of sight corresponding to a reddening of E_{B-V} = 0 .06 mag (Schlegel et al., 1998, ApJS, 500, 525). The photometry is on the UVOT flight system described in Poole et al. (2008, MNRAS, 383,627). The non-detections in the uvw2 filters may indicate that the redshift is z >~ 1.9.
GCN 7760 table
GRB_name GRB080514B
GCN_number 7760
Detection_method IPN Triangulation
Circular_text TITLE: GCN CIRCULAR NUMBER: 7760 SUBJECT: GRB 080514B: pseudo-z= 1.8 from prompt emission spectrum DATE: 08/05/21 15:09:41 GMT FROM: Alexandre Pelangeon at LATT,OMP,Toulouse A. Pelangeon & J-L. Atteia (LATT-OMP) report: We used the spectral parameters of GRB 080514B provided by Golenetskii et al. (GCNC 7751) to compute the spectral pseudo-redshift(**) of this burst localized by SuperAGILE/IPN (Rapisarda et al., GCN 7715). We find a pseudo-redshift pz= 1.76 0.30 We note that this redshift estimate is consistent with the observations of the afterglow in B band performed with the NOT, that may imply a redshift z < 3.7 (Malesani et al., GCNC 7734). This is also consistent with the observations of the Swift/UVOT (Holland et al., GCNC 7759), in which the non-detection of the afterglow in uvw2 filters may suggest z >~ 1.9 (**) cf. http://www.ast.obs-mip.fr/grb/pz
GCN 7874 table
GRB_name GRB080514B
GCN_number 7874
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 7874 SUBJECT: GRB 080514B: Spectroscopic constraints and probable host galaxy DATE: 08/06/13 16:18:12 GMT FROM: Daniel Perley at U.C. Berkeley D. A. Perley, J. S. Bloom (UC Berkeley), H.-W. Chen (U Chicago), R. J. Foley, A. A. Miller, J. Shiode, J. Brewer, D. Starr, and R. Kennedy (UCB) report: On the night of 2008-06-07 (UT) we observed the location of the Super-AGILE burst GRB 080514B (GCN 7715, Rapisarda et al.) with Keck I / LRIS in g and R filters for 1080s and 960s respectively, starting at 12:53 UT. We detect a source consistent with the afterglow position (de Ugarte Postigo et al., GCN 7719) in both filters. Photometry within a 1.1" radius aperture gives an magnitude (calibrated to three nearby USNO B1.0 stars) of: R = 23.9 +/- 0.2 (t = 24.1 days) Compared to the measurement of Malesani et al. (R = 22.52 at 1.77 days, GCN 7734), this would suggest a decay index of only about alpha = 0.5 were this the GRB afterglow, which is unlikely at such late times. More likely, the source represents a relatively bright host galaxy of this burst. However, analysis of a 2x1200s Gemini-North spectrum using GMOS taken at the afterglow location (offset <0.5" from the host from a comparison from the Gemini i-band acquisition image) 1.9 days after the GRB shows no significant emission or absorption features over the usable spectral range from 4000-6720 Angstroms. The continuum flux extends all the way to 4000 Angstroms without evidence of Lyman-alpha forest absorption, which imposes a redshift constraint of z < 2.3. Further follow-up is encouraged. A colorized image of the field is available at: http://lyra.berkeley.edu/~dperley/080514b/080514b_color.png