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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 10514naa a2202269 4500 | |
| 001 | oai:DiVA.org:su-181090 | |
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| 008 | 200429s2020 | |||||||||||000 ||eng| | |
| 009 | oai:DiVA.org:kth-272671 | |
| 009 | oai:DiVA.org:du-32388 | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1810902 URI |
| 024 | 7 | a https://doi.org/10.3847/1538-4357/ab5b052 DOI |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2726712 URI |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:du-323882 URI |
| 040 | a (SwePub)sud (SwePub)kthd (SwePub)du | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
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| 100 | 1 | a Ajello, M.u Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA.4 aut |
| 245 | 1 0 | a Fermi and Swift Observations of GRB 190114C :b Tracing the Evolution of High-energy Emission from Prompt to Afterglow |
| 264 | c 2020-02-06 | |
| 264 | 1 | b American Astronomical Society,c 2020 |
| 338 | a print2 rdacarrier | |
| 500 | a QC 20200512 | |
| 520 | a We report on the observations of gamma-ray burst (GRB) 190114C by the Fermi Gamma -ray Space Telescope and the Neil Gehrels Swift Observatory. The prompt gamma-ray emission was detected by the Fermi GRB Monitor (GBM), the Fermi Large Area Telescope (LAT), and the Swift Burst Alert Telescope (BAT) and the long-lived afterglow emission was subsequently observed by the GBM, LAT, Swift X-ray Telescope (XRT), and Swift UV Optical Telescope. The early -time observations reveal multiple emission components that evolve independently, with a delayed power-law component that exhibits significant spectral attenuation above 40 MeV in the first few seconds of the burst. This power-law component transitions to a harder spectrum that is consistent with the afterglow emission observed by the XRT at later times. This afterglow component is clearly identifiable in the GBM and BAT light curves as a slowly fading emission component on which the rest of the prompt emission is superimposed. As a result, we are able to observe the transition from internal-shock- to external-shock-dominated emission. We find that the temporal and spectral evolution of the broadband afterglow emission can be well modeled as synchrotron emission from a forward shock propagating into a wind -like circumstellar environment. We estimate the initial bulk Lorentz factor using the observed high-energy spectral cutoff. Considering the onset of the afterglow component, we constrain the deceleration radius at which this forward shock begins to radiate in order to estimate the maximum synchrotron energy as a function of time. We find that even in the LAT energy range, there exist high-energy photons that are in tension with the theoretical maximum energy that can be achieved through synchrotron emission from a shock. These violations of the maximum synchrotron energy are further compounded by the detection of very high-energy (VHE) emission above 300 GeV by MAGIC concurrent with our observations. We conclude that the observations of VHE photons from GRB 190114C necessitates either an additional emission mechanism at very high energies that is hidden in the synchrotron component in the LAT energy range, an acceleration mechanism that imparts energy to the particles at a rate that is faster than the electron synchrotron energy -loss rate, or revisions of the fundamental assumptions used in estimating the maximum photon energy attainable through the synchrotron process. | |
| 650 | 7 | a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
| 653 | a Utbildning och lärande | |
| 700 | 1 | a Arimoto, M.u Kanazawa Univ, Inst Sci & Engn, Fac Math & Phys, Kanazawa, Ishikawa 9201192, Japan.4 aut |
| 700 | 1 | a Axelsson, Magnusu KTH,Stockholms universitet,Fysikum,KTH Royal Institute of Technology, Stockholm,Partikel- och astropartikelfysik4 aut0 (Swepub:kth)u1pcmyc0 |
| 700 | 1 | a Baldini, L.4 aut |
| 700 | 1 | a Barbiellini, G.4 aut |
| 700 | 1 | a Bastieri, D.4 aut |
| 700 | 1 | a Bellazzini, R.4 aut |
| 700 | 1 | a Berretta, A.4 aut |
| 700 | 1 | a Bissaldi, E.4 aut |
| 700 | 1 | a Blandford, R. D.4 aut |
| 700 | 1 | a Bonino, R.4 aut |
| 700 | 1 | a Bottacini, E.4 aut |
| 700 | 1 | a Bregeon, J.4 aut |
| 700 | 1 | a Bruel, P.4 aut |
| 700 | 1 | a Buehler, R.4 aut |
| 700 | 1 | a Burns, E.4 aut |
| 700 | 1 | a Buson, S.4 aut |
| 700 | 1 | a Cameron, R. A.4 aut |
| 700 | 1 | a Caputo, R.4 aut |
| 700 | 1 | a Caraveo, P. A.4 aut |
| 700 | 1 | a Cavazzuti, E.4 aut |
| 700 | 1 | a Chen, S.4 aut |
| 700 | 1 | a Chiaro, G.4 aut |
| 700 | 1 | a Ciprini, S.4 aut |
| 700 | 1 | a Cohen-Tanugi, J.4 aut |
| 700 | 1 | a Costantin, D.4 aut |
| 700 | 1 | a Cutini, S.4 aut |
| 700 | 1 | a D'Ammando, F.4 aut |
| 700 | 1 | a DeKlotz, M.4 aut |
| 700 | 1 | a Luque, P. de la Torre4 aut |
| 700 | 1 | a de Palma, F.4 aut |
| 700 | 1 | a Desai, A.4 aut |
| 700 | 1 | a Di Lalla, N.4 aut |
| 700 | 1 | a Di Venere, L.4 aut |
| 700 | 1 | a Dirirsa, F. Fana4 aut |
| 700 | 1 | a Fegan, S. J.4 aut |
| 700 | 1 | a Franckowiak, A.4 aut |
| 700 | 1 | a Fukazawa, Y.4 aut |
| 700 | 1 | a Funk, S.4 aut |
| 700 | 1 | a Fusco, P.4 aut |
| 700 | 1 | a Gargano, F.4 aut |
| 700 | 1 | a Gasparrini, D.4 aut |
| 700 | 1 | a Giglietto, N.4 aut |
| 700 | 1 | a Gill, R.4 aut |
| 700 | 1 | a Giordano, F.4 aut |
| 700 | 1 | a Giroletti, M.4 aut |
| 700 | 1 | a Granot, J.4 aut |
| 700 | 1 | a Green, D.4 aut |
| 700 | 1 | a Grenier, I. A.4 aut |
| 700 | 1 | a Grondin, M. -H.4 aut |
| 700 | 1 | a Guiriec, S.4 aut |
| 700 | 1 | a Hays, E.4 aut |
| 700 | 1 | a Horan, D.4 aut |
| 700 | 1 | a Jóhannesson, Guðlauguru KTH,Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),University of Iceland, Iceland,Nordic Institute for Theoretical Physics NORDITA4 aut0 (Swepub:kth)u1dxoc6e |
| 700 | 1 | a Kocevski, D.4 aut |
| 700 | 1 | a Kovac'evic', M.4 aut |
| 700 | 1 | a Kuss, M.4 aut |
| 700 | 1 | a Larsson, Stefanu Högskolan Dalarna,KTH,Partikel- och astropartikelfysik,Naturvetenskap,KTH / The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova4 aut0 (Swepub:du)slr |
| 700 | 1 | a Latronico, L.4 aut |
| 700 | 1 | a Lemoine-Goumard, M.4 aut |
| 700 | 1 | a Li, J.4 aut |
| 700 | 1 | a Liodakis, I.4 aut |
| 700 | 1 | a Longo, F.4 aut |
| 700 | 1 | a Loparco, F.4 aut |
| 700 | 1 | a Lovellette, M. N.4 aut |
| 700 | 1 | a Lubrano, P.4 aut |
| 700 | 1 | a Maldera, S.4 aut |
| 700 | 1 | a Malyshev, D.4 aut |
| 700 | 1 | a Manfreda, A.4 aut |
| 700 | 1 | a Marti-Devesa, G.4 aut |
| 700 | 1 | a Mazziotta, M. N.4 aut |
| 700 | 1 | a McEnery, J. E.4 aut |
| 700 | 1 | a Mereu, I.4 aut |
| 700 | 1 | a Meyer, M.4 aut |
| 700 | 1 | a Michelson, P. F.4 aut |
| 700 | 1 | a Mitthumsiri, W.4 aut |
| 700 | 1 | a Mizuno, T.4 aut |
| 700 | 1 | a Monzani, M. E.4 aut |
| 700 | 1 | a Moretti, E.4 aut |
| 700 | 1 | a Morselli, A.4 aut |
| 700 | 1 | a Moskalenko, I. V.4 aut |
| 700 | 1 | a Negro, M.4 aut |
| 700 | 1 | a Nuss, E.4 aut |
| 700 | 1 | a Omodei, N.4 aut |
| 700 | 1 | a Orienti, M.4 aut |
| 700 | 1 | a Orlando, E.4 aut |
| 700 | 1 | a Palatiello, M.4 aut |
| 700 | 1 | a Paliya, V. S.4 aut |
| 700 | 1 | a Paneque, D.4 aut |
| 700 | 1 | a Pei, Z.4 aut |
| 700 | 1 | a Persic, M.4 aut |
| 700 | 1 | a Pesce-Rollins, M.4 aut |
| 700 | 1 | a Petrosian, V.4 aut |
| 700 | 1 | a Piron, F.4 aut |
| 700 | 1 | a Poon, H.4 aut |
| 700 | 1 | a Porter, T. A.4 aut |
| 700 | 1 | a Principe, G.4 aut |
| 700 | 1 | a Racusin, J. L.4 aut |
| 700 | 1 | a Raino, S.4 aut |
| 700 | 1 | a Rando, R.4 aut |
| 700 | 1 | a Rani, B.4 aut |
| 700 | 1 | a Razzano, M.4 aut |
| 700 | 1 | a Razzaque, S.4 aut |
| 700 | 1 | a Reimer, A.4 aut |
| 700 | 1 | a Reimer, O.4 aut |
| 700 | 1 | a Ryde, Felix,d 1970-u KTH,Partikel- och astropartikelfysik4 aut0 (Swepub:kth)u1tlyg6w |
| 700 | 1 | a Parkinson, P. M. Saz4 aut |
| 700 | 1 | a Serini, D.4 aut |
| 700 | 1 | a Sgro, C.4 aut |
| 700 | 1 | a Siskind, E. J.4 aut |
| 700 | 1 | a Spandre, G.4 aut |
| 700 | 1 | a Spinelli, P.4 aut |
| 700 | 1 | a Tajima, H.4 aut |
| 700 | 1 | a Takagi, K.4 aut |
| 700 | 1 | a Takahashi, M. N.4 aut |
| 700 | 1 | a Tak, D.4 aut |
| 700 | 1 | a Thayer, J. B.4 aut |
| 700 | 1 | a Thompson, D. J.4 aut |
| 700 | 1 | a Torres, D. F.4 aut |
| 700 | 1 | a Troja, E.4 aut |
| 700 | 1 | a Valverde, J.4 aut |
| 700 | 1 | a Van Klaveren, B.4 aut |
| 700 | 1 | a Wood, K.4 aut |
| 700 | 1 | a Yassine, M.4 aut |
| 700 | 1 | a Zaharijas, G.4 aut |
| 700 | 1 | a Mailyan, B.4 aut |
| 700 | 1 | a Bhat, P. N.4 aut |
| 700 | 1 | a Briggs, M. S.4 aut |
| 700 | 1 | a Cleveland, W.4 aut |
| 700 | 1 | a Giles, M.4 aut |
| 700 | 1 | a Goldstein, A.4 aut |
| 700 | 1 | a Hui, M.4 aut |
| 700 | 1 | a Malacaria, Christian4 aut |
| 700 | 1 | a Preece, R.4 aut |
| 700 | 1 | a Roberts, O. J.4 aut |
| 700 | 1 | a Veres, P.4 aut |
| 700 | 1 | a Wilson-Hodge, C.4 aut |
| 700 | 1 | a von Kienlin, A.4 aut |
| 700 | 1 | a Cenko, S. B.4 aut |
| 700 | 1 | a O'Brien, P.4 aut |
| 700 | 1 | a Beardmore, A. P.4 aut |
| 700 | 1 | a Lien, A.4 aut |
| 700 | 1 | a Osborne, J. P.4 aut |
| 700 | 1 | a Tohuvavohu, A.4 aut |
| 700 | 1 | a D'Elia, V.4 aut |
| 700 | 1 | a D'Ai, A.4 aut |
| 700 | 1 | a Perri, M.4 aut |
| 700 | 1 | a Gropp, J.4 aut |
| 700 | 1 | a Klingler, N.4 aut |
| 700 | 1 | a Capalbi, M.4 aut |
| 700 | 1 | a Tagliaferri, G.4 aut |
| 700 | 1 | a Stamatikos, M.4 aut |
| 700 | 1 | a De Pasquale, M.4 aut |
| 710 | 2 | a Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA.b Kanazawa Univ, Inst Sci & Engn, Fac Math & Phys, Kanazawa, Ishikawa 9201192, Japan.4 org |
| 773 | 0 | t Astrophysical Journald : American Astronomical Societyg 890:1q 890:1x 0004-637Xx 1538-4357 |
| 856 | 4 | u https://doi.org/10.3847/1538-4357/ab5b05y Fulltext |
| 856 | 4 | u https://doi.org/10.3847/1538-4357/ab5b05 |
| 856 | 4 | u https://du.diva-portal.org/smash/get/diva2:1422363/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-181090 |
| 856 | 4 8 | u https://doi.org/10.3847/1538-4357/ab5b05 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-272671 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:du-32388 |
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- Ajello, M.
- Arimoto, M.
- Axelsson, Magnus
- Baldini, L.
- Barbiellini, G.
- Bastieri, D.
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- Bellazzini, R.
- Berretta, A.
- Bissaldi, E.
- Blandford, R. D.
- Bonino, R.
- Bottacini, E.
- Bregeon, J.
- Bruel, P.
- Buehler, R.
- Burns, E.
- Buson, S.
- Cameron, R. A.
- Caputo, R.
- Caraveo, P. A.
- Cavazzuti, E.
- Chen, S.
- Chiaro, G.
- Ciprini, S.
- Cohen-Tanugi, J.
- Costantin, D.
- Cutini, S.
- D'Ammando, F.
- DeKlotz, M.
- Luque, P. de la ...
- de Palma, F.
- Desai, A.
- Di Lalla, N.
- Di Venere, L.
- Dirirsa, F. Fana
- Fegan, S. J.
- Franckowiak, A.
- Fukazawa, Y.
- Funk, S.
- Fusco, P.
- Gargano, F.
- Gasparrini, D.
- Giglietto, N.
- Gill, R.
- Giordano, F.
- Giroletti, M.
- Granot, J.
- Green, D.
- Grenier, I. A.
- Grondin, M. -H.
- Guiriec, S.
- Hays, E.
- Horan, D.
- Jóhannesson, Guð ...
- Kocevski, D.
- Kovac'evic', M.
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- Larsson, Stefan
- Latronico, L.
- Lemoine-Goumard, ...
- Li, J.
- Liodakis, I.
- Longo, F.
- Loparco, F.
- Lovellette, M. N ...
- Lubrano, P.
- Maldera, S.
- Malyshev, D.
- Manfreda, A.
- Marti-Devesa, G.
- Mazziotta, M. N.
- McEnery, J. E.
- Mereu, I.
- Meyer, M.
- Michelson, P. F.
- Mitthumsiri, W.
- Mizuno, T.
- Monzani, M. E.
- Moretti, E.
- Morselli, A.
- Moskalenko, I. V ...
- Negro, M.
- Nuss, E.
- Omodei, N.
- Orienti, M.
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- Paliya, V. S.
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- Principe, G.
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- Lien, A.
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- D'Elia, V.
- D'Ai, A.
- Perri, M.
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