AGILE detection of delayed gamma-ray emission from GRB 080514B

A. Giuliani, S. Mereghetti, F. Fornari, E. Del Monte, M. Feroci, M. Marisaldi, P. Esposito, F. Perotti, M. Tavani, A. Argan, G. Barbiellini, F. Boffelli, A. Bulgarelli, P. Caraveo, P. W. Cattaneo, W. Chen, E. Costa, F. D'Ammando, G. Di Cocco, I. Donnarumma & 38 others Y. Evangelista, M. Fiorini, F. Fuschino, M. Galli, F. Gianotti, C. Labanti, I. Lapshov, F. Lazzarotto, P. Lipari, F. Longo, A. Morselli, L. Pacciani, A. Pellizzoni, G. Piano, P. Picozza, M. Prest, G. Pucella, M. Rapisarda, A. Rappoldi, P. Soffitta, M. Trifoglio, A. Trois, E. Vallazza, S. Vercellone, D. Zanello, L. Salotti, S. Cutini, C. Pittori, B. Preger, P. Santolamazza, F. Verrecchia, N. Gehrels, K. Page, David Nelson Burrows, A. Rossi, K. Hurley, I. Mitrofanov, W. Boynton

Research output: Contribution to journalArticle

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Abstract

GRB 080514B is the first gamma ray burst (GRB), since the time of EGRET, for which individual photons of energy above several tens of MeV have been detected with a pair-conversion tracker telescope. This burst was discovered with the Italian AGILE gamma-ray satellite. The GRB was localized by a cooperation between AGILE and the interplanetary network (IPN). The gamma-ray imager (GRID) estimate of the position, obtained before the SuperAGILE-IPN localization, is found to be consistent with the burst position. The hard X-ray emission observed by SuperAGILE lasted about 7 s, while there is evidence that the emission above 30 MeV extends for a longer duration (at least 13 s). Similar behavior has been seen from a few other GRBs observed with EGRET. However, during the brightest phases, the latter measurements were affected by instrumental dead time effects, resulting in only lower limits to the burst intensity. Thanks to the small dead time of the AGILE/GRID we could assess that in the case of GRB 080514B the gamma-ray to X-ray flux ratio changes significantly between the prompt and extended emission phase.

Original languageEnglish (US)
JournalAstronomy and Astrophysics
Volume491
Issue number2
DOIs
StatePublished - Nov 1 2008

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gamma ray bursts
gamma rays
bursts
x rays
telescopes
energy
detection
photons
estimates

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Giuliani, A., Mereghetti, S., Fornari, F., Del Monte, E., Feroci, M., Marisaldi, M., ... Boynton, W. (2008). AGILE detection of delayed gamma-ray emission from GRB 080514B. Astronomy and Astrophysics, 491(2). https://doi.org/10.1051/0004-6361:200810737
Giuliani, A. ; Mereghetti, S. ; Fornari, F. ; Del Monte, E. ; Feroci, M. ; Marisaldi, M. ; Esposito, P. ; Perotti, F. ; Tavani, M. ; Argan, A. ; Barbiellini, G. ; Boffelli, F. ; Bulgarelli, A. ; Caraveo, P. ; Cattaneo, P. W. ; Chen, W. ; Costa, E. ; D'Ammando, F. ; Di Cocco, G. ; Donnarumma, I. ; Evangelista, Y. ; Fiorini, M. ; Fuschino, F. ; Galli, M. ; Gianotti, F. ; Labanti, C. ; Lapshov, I. ; Lazzarotto, F. ; Lipari, P. ; Longo, F. ; Morselli, A. ; Pacciani, L. ; Pellizzoni, A. ; Piano, G. ; Picozza, P. ; Prest, M. ; Pucella, G. ; Rapisarda, M. ; Rappoldi, A. ; Soffitta, P. ; Trifoglio, M. ; Trois, A. ; Vallazza, E. ; Vercellone, S. ; Zanello, D. ; Salotti, L. ; Cutini, S. ; Pittori, C. ; Preger, B. ; Santolamazza, P. ; Verrecchia, F. ; Gehrels, N. ; Page, K. ; Burrows, David Nelson ; Rossi, A. ; Hurley, K. ; Mitrofanov, I. ; Boynton, W. / AGILE detection of delayed gamma-ray emission from GRB 080514B. In: Astronomy and Astrophysics. 2008 ; Vol. 491, No. 2.
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title = "AGILE detection of delayed gamma-ray emission from GRB 080514B",
abstract = "GRB 080514B is the first gamma ray burst (GRB), since the time of EGRET, for which individual photons of energy above several tens of MeV have been detected with a pair-conversion tracker telescope. This burst was discovered with the Italian AGILE gamma-ray satellite. The GRB was localized by a cooperation between AGILE and the interplanetary network (IPN). The gamma-ray imager (GRID) estimate of the position, obtained before the SuperAGILE-IPN localization, is found to be consistent with the burst position. The hard X-ray emission observed by SuperAGILE lasted about 7 s, while there is evidence that the emission above 30 MeV extends for a longer duration (at least 13 s). Similar behavior has been seen from a few other GRBs observed with EGRET. However, during the brightest phases, the latter measurements were affected by instrumental dead time effects, resulting in only lower limits to the burst intensity. Thanks to the small dead time of the AGILE/GRID we could assess that in the case of GRB 080514B the gamma-ray to X-ray flux ratio changes significantly between the prompt and extended emission phase.",
author = "A. Giuliani and S. Mereghetti and F. Fornari and {Del Monte}, E. and M. Feroci and M. Marisaldi and P. Esposito and F. Perotti and M. Tavani and A. Argan and G. Barbiellini and F. Boffelli and A. Bulgarelli and P. Caraveo and Cattaneo, {P. W.} and W. Chen and E. Costa and F. D'Ammando and {Di Cocco}, G. and I. Donnarumma and Y. Evangelista and M. Fiorini and F. Fuschino and M. Galli and F. Gianotti and C. Labanti and I. Lapshov and F. Lazzarotto and P. Lipari and F. Longo and A. Morselli and L. Pacciani and A. Pellizzoni and G. Piano and P. Picozza and M. Prest and G. Pucella and M. Rapisarda and A. Rappoldi and P. Soffitta and M. Trifoglio and A. Trois and E. Vallazza and S. Vercellone and D. Zanello and L. Salotti and S. Cutini and C. Pittori and B. Preger and P. Santolamazza and F. Verrecchia and N. Gehrels and K. Page and Burrows, {David Nelson} and A. Rossi and K. Hurley and I. Mitrofanov and W. Boynton",
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Giuliani, A, Mereghetti, S, Fornari, F, Del Monte, E, Feroci, M, Marisaldi, M, Esposito, P, Perotti, F, Tavani, M, Argan, A, Barbiellini, G, Boffelli, F, Bulgarelli, A, Caraveo, P, Cattaneo, PW, Chen, W, Costa, E, D'Ammando, F, Di Cocco, G, Donnarumma, I, Evangelista, Y, Fiorini, M, Fuschino, F, Galli, M, Gianotti, F, Labanti, C, Lapshov, I, Lazzarotto, F, Lipari, P, Longo, F, Morselli, A, Pacciani, L, Pellizzoni, A, Piano, G, Picozza, P, Prest, M, Pucella, G, Rapisarda, M, Rappoldi, A, Soffitta, P, Trifoglio, M, Trois, A, Vallazza, E, Vercellone, S, Zanello, D, Salotti, L, Cutini, S, Pittori, C, Preger, B, Santolamazza, P, Verrecchia, F, Gehrels, N, Page, K, Burrows, DN, Rossi, A, Hurley, K, Mitrofanov, I & Boynton, W 2008, 'AGILE detection of delayed gamma-ray emission from GRB 080514B', Astronomy and Astrophysics, vol. 491, no. 2. https://doi.org/10.1051/0004-6361:200810737

AGILE detection of delayed gamma-ray emission from GRB 080514B. / Giuliani, A.; Mereghetti, S.; Fornari, F.; Del Monte, E.; Feroci, M.; Marisaldi, M.; Esposito, P.; Perotti, F.; Tavani, M.; Argan, A.; Barbiellini, G.; Boffelli, F.; Bulgarelli, A.; Caraveo, P.; Cattaneo, P. W.; Chen, W.; Costa, E.; D'Ammando, F.; Di Cocco, G.; Donnarumma, I.; Evangelista, Y.; Fiorini, M.; Fuschino, F.; Galli, M.; Gianotti, F.; Labanti, C.; Lapshov, I.; Lazzarotto, F.; Lipari, P.; Longo, F.; Morselli, A.; Pacciani, L.; Pellizzoni, A.; Piano, G.; Picozza, P.; Prest, M.; Pucella, G.; Rapisarda, M.; Rappoldi, A.; Soffitta, P.; Trifoglio, M.; Trois, A.; Vallazza, E.; Vercellone, S.; Zanello, D.; Salotti, L.; Cutini, S.; Pittori, C.; Preger, B.; Santolamazza, P.; Verrecchia, F.; Gehrels, N.; Page, K.; Burrows, David Nelson; Rossi, A.; Hurley, K.; Mitrofanov, I.; Boynton, W.

In: Astronomy and Astrophysics, Vol. 491, No. 2, 01.11.2008.

Research output: Contribution to journalArticle

TY - JOUR

T1 - AGILE detection of delayed gamma-ray emission from GRB 080514B

AU - Giuliani, A.

AU - Mereghetti, S.

AU - Fornari, F.

AU - Del Monte, E.

AU - Feroci, M.

AU - Marisaldi, M.

AU - Esposito, P.

AU - Perotti, F.

AU - Tavani, M.

AU - Argan, A.

AU - Barbiellini, G.

AU - Boffelli, F.

AU - Bulgarelli, A.

AU - Caraveo, P.

AU - Cattaneo, P. W.

AU - Chen, W.

AU - Costa, E.

AU - D'Ammando, F.

AU - Di Cocco, G.

AU - Donnarumma, I.

AU - Evangelista, Y.

AU - Fiorini, M.

AU - Fuschino, F.

AU - Galli, M.

AU - Gianotti, F.

AU - Labanti, C.

AU - Lapshov, I.

AU - Lazzarotto, F.

AU - Lipari, P.

AU - Longo, F.

AU - Morselli, A.

AU - Pacciani, L.

AU - Pellizzoni, A.

AU - Piano, G.

AU - Picozza, P.

AU - Prest, M.

AU - Pucella, G.

AU - Rapisarda, M.

AU - Rappoldi, A.

AU - Soffitta, P.

AU - Trifoglio, M.

AU - Trois, A.

AU - Vallazza, E.

AU - Vercellone, S.

AU - Zanello, D.

AU - Salotti, L.

AU - Cutini, S.

AU - Pittori, C.

AU - Preger, B.

AU - Santolamazza, P.

AU - Verrecchia, F.

AU - Gehrels, N.

AU - Page, K.

AU - Burrows, David Nelson

AU - Rossi, A.

AU - Hurley, K.

AU - Mitrofanov, I.

AU - Boynton, W.

PY - 2008/11/1

Y1 - 2008/11/1

N2 - GRB 080514B is the first gamma ray burst (GRB), since the time of EGRET, for which individual photons of energy above several tens of MeV have been detected with a pair-conversion tracker telescope. This burst was discovered with the Italian AGILE gamma-ray satellite. The GRB was localized by a cooperation between AGILE and the interplanetary network (IPN). The gamma-ray imager (GRID) estimate of the position, obtained before the SuperAGILE-IPN localization, is found to be consistent with the burst position. The hard X-ray emission observed by SuperAGILE lasted about 7 s, while there is evidence that the emission above 30 MeV extends for a longer duration (at least 13 s). Similar behavior has been seen from a few other GRBs observed with EGRET. However, during the brightest phases, the latter measurements were affected by instrumental dead time effects, resulting in only lower limits to the burst intensity. Thanks to the small dead time of the AGILE/GRID we could assess that in the case of GRB 080514B the gamma-ray to X-ray flux ratio changes significantly between the prompt and extended emission phase.

AB - GRB 080514B is the first gamma ray burst (GRB), since the time of EGRET, for which individual photons of energy above several tens of MeV have been detected with a pair-conversion tracker telescope. This burst was discovered with the Italian AGILE gamma-ray satellite. The GRB was localized by a cooperation between AGILE and the interplanetary network (IPN). The gamma-ray imager (GRID) estimate of the position, obtained before the SuperAGILE-IPN localization, is found to be consistent with the burst position. The hard X-ray emission observed by SuperAGILE lasted about 7 s, while there is evidence that the emission above 30 MeV extends for a longer duration (at least 13 s). Similar behavior has been seen from a few other GRBs observed with EGRET. However, during the brightest phases, the latter measurements were affected by instrumental dead time effects, resulting in only lower limits to the burst intensity. Thanks to the small dead time of the AGILE/GRID we could assess that in the case of GRB 080514B the gamma-ray to X-ray flux ratio changes significantly between the prompt and extended emission phase.

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U2 - 10.1051/0004-6361:200810737

DO - 10.1051/0004-6361:200810737

M3 - Article

VL - 491

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

IS - 2

ER -

Giuliani A, Mereghetti S, Fornari F, Del Monte E, Feroci M, Marisaldi M et al. AGILE detection of delayed gamma-ray emission from GRB 080514B. Astronomy and Astrophysics. 2008 Nov 1;491(2). https://doi.org/10.1051/0004-6361:200810737