Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow

M. Ajello; M. Arimoto; M. Axelsson; L. Baldini; G. Barbiellini; D. Bastieri; R. Bellazzini; A. Berretta; E. Bissaldi; R.D. Blandford; R. Bonino; E. Bottacini; J. Bregeon; P. Bruel; R. Buehler; E. Burns; S. Buson; R.A. Cameron; R. Caputo; P.A. Caraveo; E. Cavazzuti; S. Chen; G. Chiaro; S. Ciprini; Johann Cohen-Tanugi; D. Costantin; S. Cutini; F. d'Ammando; M. Deklotz; P. de La Torre Luque; F. de Palma; A. Desai; N. Di Lalla; L. Di Venere; F. Fana Dirirsa; S.J. Fegan; A. Franckowiak; Y. Fukazawa; S. Funk; P. Fusco; F. Gargano; D. Gasparrini; N. Giglietto; R. Gill; F. Giordano; M. Giroletti; J. Granot; D. Green; I.A. Grenier; M.H. Grondin; S. Guiriec; E. Hays; D. Horan; G. Jóhannesson; D. Kocevski; M. Kovac'Evic'; M. Kuss; S. Larsson; L. Latronico; M. Lemoine-Goumard; J. Li; I. Liodakis; F. Longo; F. Loparco; M.N. Lovellette; P. Lubrano; S. Maldera; D. Malyshev; A. Manfreda; G. Martí-Devesa; M.N. Mazziotta; J.E. Mcenery; I. Mereu; M. Meyer; P.F. Michelson; W. Mitthumsiri; T. Mizuno; M.E. Monzani; E. Moretti; A. Morselli; I.V. Moskalenko; M. Negro; E. Nuss; N. Omodei; M. Orienti; E. Orlando; M. Palatiello; V.S. Paliya; D. Paneque; Z. Pei; M. Persic; M. Pesce-Rollins; V. Petrosian; F. Piron; H. Poon; T.A. Porter; G. Principe; J.L. Racusin; S. Rainò; R. Rando; B. Rani; M. Razzano; S. Razzaque; A. Reimer; O. Reimer; F. Ryde; P.M. Saz Parkinson; D. Serini; C. Sgrò; E.J. Siskind; G. Spandre; P. Spinelli; H. Tajima; K. Takagi; M.N. Takahashi; D. Tak; J.B. Thayer; D.J. Thompson; D.F. Torres; E. Troja; J. Valverde; B. van Klaveren; K. Wood; M. Yassine; G. Zaharijas; P.N. Bhat; M.S. Briggs; W. Cleveland; M. Giles; A. Goldstein; M. Hui; C. Malacaria; R. Preece; O. Roberts; P. Veres; A. von Kienlin; S.B. Cenko; P. O'Brien; A.P. Beardmore; A. Lien; J.P. Osborne; A. Tohuvavohu; V. d'Elia; A. d'A; M. Perri; J. Gropp; N. Klingler; M. Capalbi; G. Tagliaferri; M. Stamatikos

doi:10.3847/1538-4357/ab5b05

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Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow

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Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow

M. Ajello, M. Arimoto, M. Axelsson, L. Baldini, G. Barbiellini, D. Bastieri, R. Bellazzini, A. Berretta, E. Bissaldi, R.D. Blandford, …

The Astrophysical Journal, Vol.890(1)

2020

DOI: https://doi.org/10.3847/1538-4357/ab5b05

Abstract

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 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 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 constrain 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 and find that high-energy photons observed by Fermi LAT 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.

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Title: Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow
Creators - without role: M. Ajello - Clemson University
M. Arimoto - Kanazawa University
M. Axelsson - AlbaNova
L. Baldini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
G. Barbiellini - University of Trieste
D. Bastieri - University of Padua
R. Bellazzini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
A. Berretta - University of Perugia
E. Bissaldi - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
R.D. Blandford - Kavli Institute for Particle Astrophysics and Cosmology
R. Bonino - University of Turin
E. Bottacini - Kavli Institute for Particle Astrophysics and Cosmology
J. Bregeon - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
P. Bruel - Laboratoire Leprince-Ringuet
R. Buehler - Deutsches Elektronen-Synchrotron DESY
E. Burns - Goddard Space Flight Center
S. Buson - University of Würzburg
R.A. Cameron - Kavli Institute for Particle Astrophysics and Cosmology
R. Caputo - Goddard Space Flight Center
P.A. Caraveo - Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
E. Cavazzuti - Agenzia Spaziale Italiana
S. Chen - Istituto Nazionale di Fisica Nucleare, Sezione di Padova
G. Chiaro - Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
S. Ciprini - Agenzia Spaziale Italiana
Johann Cohen-Tanugi - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
D. Costantin - University of Padua
S. Cutini - Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
F. d'Ammando
M. Deklotz - Stellar Solutions
P. de La Torre Luque
F. de Palma - Istituto Nazionale di Fisica Nucleare, Sezione di Torino
A. Desai - Clemson University
N. Di Lalla - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
L. Di Venere - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
F. Fana Dirirsa
S.J. Fegan - Laboratoire Leprince-Ringuet
A. Franckowiak - Deutsches Elektronen-Synchrotron DESY
Y. Fukazawa - Hiroshima University
S. Funk - Friedrich-Alexander-Universität Erlangen-Nürnberg
P. Fusco - Polytechnic University of Bari
F. Gargano - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
D. Gasparrini - Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
N. Giglietto - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
R. Gill - Open University of Israel
F. Giordano - Polytechnic University of Bari
M. Giroletti - Istituto di Radioastronomia di Bologna
J. Granot - Open University of Israel
D. Green - Max Planck Institute for Physics
I.A. Grenier - CEA Paris-Saclay
M.H. Grondin - Institut National de Physique Nucléaire et de Physique des Particules
S. Guiriec - Goddard Space Flight Center
E. Hays - Goddard Space Flight Center
D. Horan - Laboratoire Leprince-Ringuet
G. Jóhannesson - KTH Royal Institute of Technology
D. Kocevski - Marshall Space Flight Center
M. Kovac'Evic'
M. Kuss - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
S. Larsson - Dalarna University
L. Latronico - Istituto Nazionale di Fisica Nucleare, Sezione di Torino
M. Lemoine-Goumard - Centre National de la Recherche Scientifique
J. Li - Deutsches Elektronen-Synchrotron DESY
I. Liodakis - Stanford University
F. Longo - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
F. Loparco - Polytechnic University of Bari
M.N. Lovellette - United States Naval Research Laboratory
P. Lubrano - Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
S. Maldera - Istituto Nazionale di Fisica Nucleare, Sezione di Torino
D. Malyshev - Friedrich-Alexander-Universität Erlangen-Nürnberg
A. Manfreda - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
G. Martí-Devesa - Universität Innsbruck
M.N. Mazziotta - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
J.E. Mcenery - University of Maryland, College Park
I. Mereu - University of Perugia
M. Meyer - Stanford University
P.F. Michelson - Kavli Institute for Particle Astrophysics and Cosmology
W. Mitthumsiri - Mahidol University
T. Mizuno - Hiroshima University
M.E. Monzani - Kavli Institute for Particle Astrophysics and Cosmology
E. Moretti - Institute for High Energy Physics
A. Morselli - Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
I.V. Moskalenko - Stanford University
M. Negro - Istituto Nazionale di Fisica Nucleare, Sezione di Torino
E. Nuss - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
N. Omodei - Kavli Institute for Particle Astrophysics and Cosmology
M. Orienti - Istituto di Radioastronomia di Bologna
E. Orlando - Stanford University
M. Palatiello - University of Trieste
V.S. Paliya - Deutsches Elektronen-Synchrotron DESY
D. Paneque - Max Planck Institute for Physics
Z. Pei - University of Padua
M. Persic - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
M. Pesce-Rollins - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
V. Petrosian - Stanford University
F. Piron - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
H. Poon - Hiroshima University
T.A. Porter - Stanford University
G. Principe - Istituto di Radioastronomia di Bologna
J.L. Racusin - Goddard Space Flight Center
S. Rainò - Polytechnic University of Bari
R. Rando - Istituto Nazionale di Fisica Nucleare, Sezione di Padova
B. Rani - Goddard Space Flight Center
M. Razzano - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
S. Razzaque - University of Johannesburg
A. Reimer - SLAC National Accelerator Laboratory
O. Reimer - Universität Innsbruck
F. Ryde - Fraunhofer Chalmers Research Centre for Industrial Mathematics
P.M. Saz Parkinson
D. Serini - Polytechnic University of Bari
C. Sgrò - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E.J. Siskind - Real Time Tomography
G. Spandre - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
P. Spinelli - Polytechnic University of Bari
H. Tajima - Stanford University
K. Takagi - Hiroshima University
M.N. Takahashi - Max Planck Institute for Physics
D. Tak - Goddard Space Flight Center
J.B. Thayer - Kavli Institute for Particle Astrophysics and Cosmology
D.J. Thompson - Goddard Space Flight Center
D.F. Torres - Institució Catalana de Recerca i Estudis Avançats
E. Troja - Goddard Space Flight Center
J. Valverde - Laboratoire Leprince-Ringuet
B. van Klaveren - Kavli Institute for Particle Astrophysics and Cosmology
K. Wood - Praxis
M. Yassine - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
G. Zaharijas - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
P.N. Bhat - University of Alabama in Huntsville
M.S. Briggs - University of Alabama in Huntsville
W. Cleveland - Universities Space Research Association
M. Giles - Jacobs
A. Goldstein - Universities Space Research Association
M. Hui - Marshall Space Flight Center
C. Malacaria - National Space Science and Technology Center
R. Preece - University of Alabama in Huntsville
O. Roberts - Universities Space Research Association
P. Veres - University of Alabama in Huntsville
A. von Kienlin - Max Planck Institute for Extraterrestrial Physics
S.B. Cenko - University of Maryland, College Park
P. O'Brien
A.P. Beardmore - University of Leicester
A. Lien - Goddard Space Flight Center
J.P. Osborne - University of Leicester
A. Tohuvavohu - University of Toronto
V. d'Elia
A. d'A
M. Perri - Astronomical Observatory of Rome
J. Gropp - Pennsylvania State University
N. Klingler - Pennsylvania State University
M. Capalbi - Istituto di Astrofisica Spaziale e Fisica cosmica di Palermo
G. Tagliaferri - Brera Astronomical Observatory
M. Stamatikos - Goddard Space Flight Center
Publication Details: The Astrophysical Journal, Vol.890(1)
Identifiers: 9934708609311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: hal-02973266