WFRF:(Morgan D. R.)
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 14222naa a2202341 4500 | |
| 001 | oai:DiVA.org:lnu-117501 | |
| 003 | SwePub | |
| 008 | 221115s2022 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-1175012 URI |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2022443232 DOI |
| 040 | a (SwePub)lnu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Aharonian, F.u Dublin Inst Adv Studies, Ireland;Max Planck Inst Kernphys, Germany4 aut |
| 245 | 1 0 | a A deep spectromorphological study of the ϒ-ray emission surrounding the young massive stellar cluster Westerlund 1 |
| 264 | c 2022-10-17 | |
| 264 | 1 | b EPD Sciences,c 2022 |
| 338 | a electronic2 rdacarrier | |
| 520 | a Context. Young massive stellar clusters are extreme environments and potentially provide the means for efficient particle acceleration. Indeed, they are increasingly considered as being responsible for a significant fraction of cosmic rays (CRs) that are accelerated within the Milky Way. Westerlund 1, the most massive known young stellar cluster in our Galaxy, is a prime candidate for studying this hypothesis. While the very-high-energy gamma-ray source HESS J1646-458 has been detected in the vicinity of Westerlund 1 in the past, its association could not be firmly identified. Aims. We aim to identify the physical processes responsible for the gamma-ray emission around Westerlund 1 and thus to understand the role of massive stellar clusters in the acceleration of Galactic CRs better. Methods. Using 164 h of data recorded with the High Energy Stereoscopic System (H.E.S.S.), we carried out a deep spectromorphological study of the gamma-ray emission of HESS J1646-458. We furthermore employed H I and CO observations of the region to infer the presence of gas that could serve as target material for interactions of accelerated CRs. Results. We detected large-scale (similar to 2 degrees diameter) gamma-ray emission with a complex morphology, exhibiting a shell-like structure and showing no significant variation with gamma-ray energy. The combined energy spectrum of the emission extends to several tens of TeV, and it is uniform across the entire source region. We did not find a clear correlation of the gamma-ray emission with gas clouds as identified through H I and CO observations. Conclusions. We conclude that, of the known objects within the region, only Westerlund 1 can explain the majority of the gamma-ray emission. Several CR acceleration sites and mechanisms are conceivable and discussed in detail. While it seems clear that Westerlund 1 acts as a powerful particle accelerator, no firm conclusions on the contribution of massive stellar clusters to the flux of Galactic CRs in general can be drawn at this point. | |
| 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 acceleration of particles | |
| 653 | a radiation mechanisms | |
| 653 | a non-thermal | |
| 653 | a shock waves | |
| 653 | a stars | |
| 653 | a massive | |
| 653 | a gamma rays | |
| 653 | a general | |
| 653 | a galaxies | |
| 653 | a star clusters | |
| 653 | a individual | |
| 653 | a Westerlund 1 | |
| 653 | a Astroparticle Physics | |
| 653 | a Astropartikelfysik | |
| 700 | 1 | a Ashkar, H.u Ecole Polytech, France4 aut |
| 700 | 1 | a Backes, M.u Univ Namibia, Namibia;North West Univ, South Africa4 aut |
| 700 | 1 | a Martins, V. Barbosau DESY, Germany4 aut |
| 700 | 1 | a Becherini, Yvonneu Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE),Univ Paris, France4 aut0 (Swepub:lnu)yvbeaa |
| 700 | 1 | a Berge, D.u DESY, Germany;Humboldt Univ, Germany4 aut |
| 700 | 1 | a Bi, B.u Univ Tubingen, Germany4 aut |
| 700 | 1 | a Bottcher, M.u North West Univ, South Africa4 aut |
| 700 | 1 | a de Lavergne, M. de Bonyu Univ Savoie Mt Blanc, France4 aut |
| 700 | 1 | a Bradascio, F.u Univ Paris Saclay, France4 aut |
| 700 | 1 | a Brose, R.u Dublin Inst Adv Studies, Ireland4 aut |
| 700 | 1 | a Brun, F.u Univ Paris Saclay, France4 aut |
| 700 | 1 | a Bulik, T.u Univ Warsaw, Poland4 aut |
| 700 | 1 | a Burger-Scheidlin, C.u Dublin Inst Adv Studies, Ireland4 aut |
| 700 | 1 | a Cangemi, F.u Sorbonne Univ, France4 aut |
| 700 | 1 | a Caroff, S.u Sorbonne Univ, France4 aut |
| 700 | 1 | a Casanova, S.u Inst Fizyki Jdrowej PAN, Poland4 aut |
| 700 | 1 | a Cerruti, M.u Univ Paris, France4 aut |
| 700 | 1 | a Chand, T.u North West Univ, South Africa4 aut |
| 700 | 1 | a Chandra, S.u North West Univ, South Africa4 aut |
| 700 | 1 | a Chen, A.u Univ Witwatersrand, South Africa4 aut |
| 700 | 1 | a Chibueze, O.u North West Univ, South Africa4 aut |
| 700 | 1 | a Cristofari, P.u Univ Paris, France4 aut |
| 700 | 1 | a Mbarubucyeye, J. Damasceneu DESY, Germany4 aut |
| 700 | 1 | a Djannati-Atai, A.u Univ Paris, France4 aut |
| 700 | 1 | a Ernenwein, J-Pu Aix Marseille Univ, France4 aut |
| 700 | 1 | a Feijen, K.u Univ Adelaide, Australia4 aut |
| 700 | 1 | a de Clairfontaine, G. Fichetu Univ Paris, France4 aut |
| 700 | 1 | a Fontaine, G.u Ecole Polytech, France4 aut |
| 700 | 1 | a Funk, S.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Gabici, S.u Univ Paris, France4 aut |
| 700 | 1 | a Gallant, Y. A.u Univ Montpellier, France4 aut |
| 700 | 1 | a Ghafourizadeh, S.u Heidelberg Univ, Germany4 aut |
| 700 | 1 | a Giavitto, G.u DESY, Germany4 aut |
| 700 | 1 | a Giunti, L.u Univ Paris, France;Univ Paris Saclay, France4 aut |
| 700 | 1 | a Glawion, D.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Glicenstein, J. F.u Univ Paris Saclay, France4 aut |
| 700 | 1 | a Goswami, P.u North West Univ, South Africa4 aut |
| 700 | 1 | a Grondin, M-Hu Univ Bordeaux, France4 aut |
| 700 | 1 | a Haerer, L. K.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Haupt, M.u DESY, Germany4 aut |
| 700 | 1 | a Hinton, J. A.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Horbe, M.u Univ Oxford, UK4 aut |
| 700 | 1 | a Hofmann, W.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Holch, T. L.u DESY, Germany4 aut |
| 700 | 1 | a Holler, M.u Leopold Franzens Univ Innsbruck, Austria4 aut |
| 700 | 1 | a Horns, D.u Univ Hamburg, Germany4 aut |
| 700 | 1 | a Jamrozy, M.u Uniwersytet Jagiellonski, Poland4 aut |
| 700 | 1 | a Joshi, Vu Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Jung-Richardt, Iu Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Kasai, E.u Univ Namibia, Namibia4 aut |
| 700 | 1 | a Katarzynski, K.u Nicolaus Copernicus Univ, Poland4 aut |
| 700 | 1 | a Katz, U.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Khelifi, B.u Univ Paris, France4 aut |
| 700 | 1 | a Komin, Nuu Univ Witwatersrand, South Africa4 aut |
| 700 | 1 | a Kosack, K.u Univ Paris Saclay, France4 aut |
| 700 | 1 | a Kostunin, D.u DESY, Germany4 aut |
| 700 | 1 | a Kukec Mezek, Gasperu Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE)4 aut0 (Swepub:lnu)gakuaa |
| 700 | 1 | a Lang, R. G.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Le Stum, S.u Aix Marseille Univ, France4 aut |
| 700 | 1 | a Lemiere, A.u Univ Paris, France4 aut |
| 700 | 1 | a Lemoine-Goumard, M.u Univ Bordeaux, France4 aut |
| 700 | 1 | a Lenain, J-Pu Sorbonne Univ, France4 aut |
| 700 | 1 | a Leuschner, F.u Univ Tubingen, Germany4 aut |
| 700 | 1 | a Lohse, T.u Humboldt Univ, Germany4 aut |
| 700 | 1 | a Luashvili, A.u Univ Paris, France4 aut |
| 700 | 1 | a Lypova, Iu Heidelberg Univ, Germany4 aut |
| 700 | 1 | a Mackey, J.u Dublin Inst Adv Studies, Ireland4 aut |
| 700 | 1 | a Majumdar, J.u DESY, Germany4 aut |
| 700 | 1 | a Malyshev, D.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Marandon, Vu Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Marchegiani, P.u Univ Witwatersrand, South Africa4 aut |
| 700 | 1 | a Marcowith, A.u Univ Montpellier, France4 aut |
| 700 | 1 | a Marti-Devesa, G.u Leopold Franzens Univ Innsbruck, Austria4 aut |
| 700 | 1 | a Marx, R.u Heidelberg Univ, Germany4 aut |
| 700 | 1 | a Maurin, G.u Univ Savoie Mt Blanc, France4 aut |
| 700 | 1 | a Meyer, M.u Univ Hamburg, Germany4 aut |
| 700 | 1 | a Mitchell, A.u Max Planck Inst Kernphys, Germany;Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Moderski, R.u Polish Acad Sci, Poland4 aut |
| 700 | 1 | a Mohrmann, L.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Montanari, A.u Univ Paris Saclay, France4 aut |
| 700 | 1 | a Moulin, E.u Univ Paris Saclay, France4 aut |
| 700 | 1 | a Muller, J.u Ecole Polytech, France4 aut |
| 700 | 1 | a Murach, T.u DESY, Germany4 aut |
| 700 | 1 | a Nakashima, K.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a de Naurois, M.u Ecole Polytech, France4 aut |
| 700 | 1 | a Nayerhoda, A.u Inst Fizyki Jdrowej PAN, Poland4 aut |
| 700 | 1 | a Niemiec, J.u Inst Fizyki Jdrowej PAN, Poland4 aut |
| 700 | 1 | a Ohm, S.u DESY, Germany4 aut |
| 700 | 1 | a Olivera-Nieto, L.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Wilhelmi, E. de Onau DESY, Germany4 aut |
| 700 | 1 | a Ostrowski, M.u Uniwersytet Jagiellonski, Poland4 aut |
| 700 | 1 | a Panny, S.u Leopold Franzens Univ Innsbruck, Austria4 aut |
| 700 | 1 | a Panter, M.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Parsons, R. D.u Humboldt Univ, Germany4 aut |
| 700 | 1 | a Peron, G.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Prokhorov, D. A.u Univ Amsterdam, Netherlands4 aut |
| 700 | 1 | a Puehlhofer, G.u Univ Tubingen, Germany4 aut |
| 700 | 1 | a Punch, Michaelu Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE),Univ Paris, France4 aut0 (Swepub:lnu)mipuaa |
| 700 | 1 | a Quirrenbach, A.u Heidelberg Univ, Germany4 aut |
| 700 | 1 | a Rauth, R.u Leopold Franzens Univ Innsbruck, Austria4 aut |
| 700 | 1 | a Reichherzer, P.u Univ Paris Saclay, France4 aut |
| 700 | 1 | a Reimer, A.u Leopold Franzens Univ Innsbruck, Austria4 aut |
| 700 | 1 | a Reimer, O.u Leopold Franzens Univ Innsbruck, Austria4 aut |
| 700 | 1 | a Renaud, M.u Univ Montpellier, France4 aut |
| 700 | 1 | a Reville, B.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Rieger, F.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Rowell, G.u Univ Adelaide, Australia4 aut |
| 700 | 1 | a Rudak, B.u Polish Acad Sci, Poland4 aut |
| 700 | 1 | a Ruiz-Velasco, E.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Sahakian, Vu Yerevan Phys Inst, Armenia4 aut |
| 700 | 1 | a Salzmann, H.u Univ Tubingen, Germany4 aut |
| 700 | 1 | a Sanchez, D. A.u Univ Savoie Mt Blanc, France4 aut |
| 700 | 1 | a Santangelo, A.u Univ Tubingen, Germany4 aut |
| 700 | 1 | a Sasaki, M.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Schussler, F.u Univ Paris Saclay, France4 aut |
| 700 | 1 | a Schutte, H. M.u North West Univ, South Africa4 aut |
| 700 | 1 | a Schwanke, U.u Humboldt Univ, Germany4 aut |
| 700 | 1 | a Shapopi, J. N. S.u Univ Namibia, Namibia4 aut |
| 700 | 1 | a Specovius, A.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Steenkamp, R.u Univ Namibia, Namibia4 aut |
| 700 | 1 | a Steinmassl, S.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Steppa, C.u Univ Potsdam, Germany4 aut |
| 700 | 1 | a Sushch, Iu North West Univ, South Africa4 aut |
| 700 | 1 | a Suzuki, H.u Konan Univ, Japan4 aut |
| 700 | 1 | a Takahashi, T.u Univ Tokyo, Japan4 aut |
| 700 | 1 | a Tanaka, T.u Konan Univ, Japan4 aut |
| 700 | 1 | a Terrier, R.u Univ Paris, France4 aut |
| 700 | 1 | a Thorpe-Morgan, C.u Univ Tubingen, Germany4 aut |
| 700 | 1 | a Tsirou, M.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Tsuji, N.u RIKEN, Japan4 aut |
| 700 | 1 | a Tuffs, R.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Unbehaun, T.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a van Eldik, C.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a van Soelen, B.u Univ Free State, South Africa4 aut |
| 700 | 1 | a Vecchi, M.u Univ Amsterdam, Netherlands4 aut |
| 700 | 1 | a Veh, J.u Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Venter, C.u North West Univ, South Africa4 aut |
| 700 | 1 | a Vink, J.u Univ Amsterdam, Netherlands4 aut |
| 700 | 1 | a Wagner, S. J.u Heidelberg Univ, Germany4 aut |
| 700 | 1 | a White, R.u Max Planck Inst Kernphys, Germany4 aut |
| 700 | 1 | a Wierzcholska, A.u Inst Fizyki Jdrowej PAN, Poland4 aut |
| 700 | 1 | a Wong, Y. Wunu Friedrich Alexander Univ Erlangen Nurnberg, Germany4 aut |
| 700 | 1 | a Zacharias, M.u North West Univ, South Africa;Univ Paris, France4 aut |
| 700 | 1 | a Zargaryan, D.u Dublin Inst Adv Studies, Ireland4 aut |
| 700 | 1 | a Zdziarski, A. A.u Polish Acad Sci, Poland4 aut |
| 700 | 1 | a Zhu, S. J.u DESY, Germany4 aut |
| 700 | 1 | a Zouari, S.u Univ Paris, France4 aut |
| 700 | 1 | a Zywucka, N.u North West Univ, South Africa4 aut |
| 700 | 1 | a Blackwell, R.u Univ Adelaide, Australia4 aut |
| 700 | 1 | a Braiding, C.u Univ New South Wales, Australia4 aut |
| 700 | 1 | a Burton, M.u Armagh Observ & Planetarium, UK4 aut |
| 700 | 1 | a Cubuk, K.u Armagh Observ & Planetarium, UK4 aut |
| 700 | 1 | a Filipovic, M.u Western Sydney Univ, Australia4 aut |
| 700 | 1 | a Tothill, N.u Western Sydney Univ, Australia4 aut |
| 700 | 1 | a Wong, G.u Western Sydney Univ, Australia4 aut |
| 710 | 2 | a Dublin Inst Adv Studies, Ireland;Max Planck Inst Kernphys, Germanyb Ecole Polytech, France4 org |
| 773 | 0 | t Astronomy and Astrophysicsd : EPD Sciencesg 666q 666x 0004-6361x 1432-0746 |
| 856 | 4 | u https://doi.org/10.1051/0004-6361/202244323y Fulltext |
| 856 | 4 | u https://lnu.diva-portal.org/smash/get/diva2:1711077/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-117501 |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/202244323 |
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