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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 07158naa a2201669 4500 | |
| 001 | oai:DiVA.org:kth-316176 | |
| 003 | SwePub | |
| 008 | 220927s2021 | |||||||||||000 ||eng| | |
| 009 | oai:DiVA.org:du-35897 | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3161762 URI |
| 024 | 7 | a https://doi.org/10.1038/s41550-020-01287-82 DOI |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:du-358972 URI |
| 040 | a (SwePub)kthd (SwePub)du | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Ajello, M.4 aut |
| 245 | 1 0 | a High-energy emission from a magnetar giant flare in the Sculptor galaxy |
| 264 | c 2021-01-13 | |
| 264 | 1 | b Springer Nature,c 2021 |
| 338 | a print2 rdacarrier | |
| 500 | a QC 20220927 | |
| 520 | a Magnetars are the most highly magnetized neutron stars in the cosmos (with magnetic field 1013–1015 G). Giant flares from magnetars are rare, short-duration (about 0.1 s) bursts of hard X-rays and soft γ rays1,2. Owing to the limited sensitivity and energy coverage of previous telescopes, no magnetar giant flare has been detected at gigaelectronvolt (GeV) energies. Here, we report the discovery of GeV emission from a magnetar giant flare on 15 April 2020 (refs. 3,4 and A. J. Castro-Tirado et al., manuscript in preparation). The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope detected GeV γ rays from 19 s until 284 s after the initial detection of a signal in the megaelectronvolt (MeV) band. Our analysis shows that these γ rays are spatially associated with the nearby (3.5 megaparsecs) Sculptor galaxy and are unlikely to originate from a cosmological γ-ray burst. Thus, we infer that the γ rays originated with the magnetar giant flare in Sculptor. We suggest that the GeV signal is generated by an ultra-relativistic outflow that first radiates the prompt MeV-band photons, and then deposits its energy far from the stellar magnetosphere. After a propagation delay, the outflow interacts with environmental gas and produces shock waves that accelerate electrons to very high energies; these electrons then emit GeV γ rays as optically thin synchrotron radiation. This observation implies that a relativistic outflow is associated with the magnetar giant flare, and suggests the possibility that magnetars can power some short γ-ray bursts. | |
| 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 |
| 650 | 7 | a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng |
| 700 | 1 | a Atwood, W. B.4 aut |
| 700 | 1 | a Axelsson, Magnusu KTH,Partikel- och astropartikelfysik4 aut0 (Swepub:kth)u1pcmyc0 |
| 700 | 1 | a Baldini, L.4 aut |
| 700 | 1 | a Barbiellini, G.4 aut |
| 700 | 1 | a Baring, M. 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 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 Caraveo, P. A.4 aut |
| 700 | 1 | a Cavazzuti, E.4 aut |
| 700 | 1 | a Chen, S.4 aut |
| 700 | 1 | a Cheung, C. C.4 aut |
| 700 | 1 | a Chiaro, G.4 aut |
| 700 | 1 | a Ciprini, S.4 aut |
| 700 | 1 | a Costantin, D.4 aut |
| 700 | 1 | a Crnogorcevic, M.4 aut |
| 700 | 1 | a Cutini, S.4 aut |
| 700 | 1 | a D’Ammando, F.4 aut |
| 700 | 1 | a de la Torre Luque, P.4 aut |
| 700 | 1 | a de Palma, F.4 aut |
| 700 | 1 | a Digel, S. W.4 aut |
| 700 | 1 | a Di Lalla, N.4 aut |
| 700 | 1 | a Di Venere, L.4 aut |
| 700 | 1 | a Dirirsa, F. F.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 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 Griffin, S.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, Gudlauguru KTH,Nordic Institute for Theoretical Physics NORDITA4 aut0 (Swepub:kth)u1dxoc6e |
| 700 | 1 | a Kerr, M.4 aut |
| 700 | 1 | a Kovačević, M.4 aut |
| 700 | 1 | a Kuss, M.4 aut |
| 700 | 1 | a Larsson, Stefanu Högskolan Dalarna,KTH,Partikel- och astropartikelfysik,Naturvetenskap,KTH Royal Inst Technol / Oskar Klein Ctr Cosmoparticle Phys4 aut0 (Swepub:du)slr |
| 700 | 1 | a Latronico, L.4 aut |
| 700 | 1 | a Li, J.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 Manfreda, A.4 aut |
| 700 | 1 | a Martí-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 Michelson, P. F.4 aut |
| 700 | 1 | a Mizuno, T.4 aut |
| 700 | 1 | a Monzani, M. 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 Omodei, N.4 aut |
| 700 | 1 | a Orienti, M.4 aut |
| 700 | 1 | a Orlando, E.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 Pesce-Rollins, M.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 Rainò, S.4 aut |
| 700 | 1 | a Rando, R.4 aut |
| 700 | 1 | a Rani, B.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 Parkinson, P. M. S.4 aut |
| 700 | 1 | a Scargle, J. D.4 aut |
| 700 | 1 | a Scotton, L.4 aut |
| 700 | 1 | a Serini, D.4 aut |
| 700 | 1 | a Sgrò, 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 Takahashi, M. N.4 aut |
| 700 | 1 | a Tak, D.4 aut |
| 700 | 1 | a Torres, D. F.4 aut |
| 700 | 1 | a Tosti, G.4 aut |
| 700 | 1 | a Troja, E.4 aut |
| 700 | 1 | a Wadiasingh, Z.4 aut |
| 700 | 1 | a Wood, K.4 aut |
| 700 | 1 | a Yassine, M.4 aut |
| 700 | 1 | a Yusafzai, A.4 aut |
| 700 | 1 | a Zaharijas, G.4 aut |
| 710 | 2 | a KTHb Partikel- och astropartikelfysik4 org |
| 773 | 0 | t Nature Astronomyd : Springer Natureg 5:4, s. 385-391q 5:4<385-391x 2397-3366 |
| 856 | 4 | u https://hal.archives-ouvertes.fr/hal-03210381/file/GRB200415A_LAT-Finalsubmitted%20%281%29.pdf |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-316176 |
| 856 | 4 8 | u https://doi.org/10.1038/s41550-020-01287-8 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:du-35897 |
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- Ajello, M.
- Atwood, W. B.
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- Bastieri, D.
- Bellazzini, R.
- Berretta, A.
- Bissaldi, E.
- Blandford, R. D.
- Bonino, R.
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- Bruel, P.
- Buehler, R.
- Burns, E.
- Buson, S.
- Cameron, R. A.
- Caraveo, P. A.
- Cavazzuti, E.
- Chen, S.
- Cheung, C. C.
- Chiaro, G.
- Ciprini, S.
- Costantin, D.
- Crnogorcevic, M.
- Cutini, S.
- D’Ammando, F.
- de la Torre Luqu ...
- de Palma, F.
- Digel, S. W.
- Di Lalla, N.
- Di Venere, L.
- Dirirsa, F. F.
- Fukazawa, Y.
- Funk, S.
- Fusco, P.
- Gargano, F.
- Giglietto, N.
- Gill, R.
- Giordano, F.
- Giroletti, M.
- Granot, J.
- Green, D.
- Grenier, I. A.
- Griffin, S.
- Guiriec, S.
- Hays, E.
- Horan, D.
- Jóhannesson, Gud ...
- Kerr, M.
- Kovačević, M.
- Kuss, M.
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- Li, J.
- Longo, F.
- Loparco, F.
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- Lubrano, P.
- Maldera, S.
- Manfreda, A.
- Martí-Devesa, G.
- Mazziotta, M. N.
- McEnery, J. E.
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