Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/24843
DC Field | Value | Language |
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dc.contributor.author | Ackermann, M. | en_US |
dc.contributor.author | Ajello, M. | en_US |
dc.contributor.author | Baldini, L. | en_US |
dc.contributor.author | Ballet, J. | en_US |
dc.contributor.author | Barbiellini, G. | en_US |
dc.contributor.author | Bastieri, D. | en_US |
dc.contributor.author | Bellazzini, R. | en_US |
dc.contributor.author | Bissaldi, E. | en_US |
dc.contributor.author | Blandford, R. D. | en_US |
dc.contributor.author | Bloom, E. D. | en_US |
dc.contributor.author | Bonino, R. | en_US |
dc.contributor.author | Fermi LAT Collaboration | en_US |
dc.contributor.author | Bruel, P. | en_US |
dc.contributor.author | Buehler, R. | en_US |
dc.contributor.author | Buson, S. | en_US |
dc.contributor.author | Caliandro, G. A. | en_US |
dc.contributor.author | Cameron, R. A. | en_US |
dc.contributor.author | Caragiulo, M. | en_US |
dc.contributor.author | CARAVEO, PATRIZIA | en_US |
dc.contributor.author | Cavazzuti, E. | en_US |
dc.contributor.author | Cecchi, C. | en_US |
dc.contributor.author | de Palma, F. | en_US |
dc.contributor.author | Charles, E. | en_US |
dc.contributor.author | Chekhtman, A. | en_US |
dc.contributor.author | Cheung, C. C. | en_US |
dc.contributor.author | Chiaro, G. | en_US |
dc.contributor.author | Ciprini, S. | en_US |
dc.contributor.author | Cohen, J. M. | en_US |
dc.contributor.author | Cohen-Tanugi, J. | en_US |
dc.contributor.author | Costanza, F. | en_US |
dc.contributor.author | Cutini, S. | en_US |
dc.contributor.author | D'AMMANDO, FILIPPO | en_US |
dc.contributor.author | Desiante, R. | en_US |
dc.contributor.author | Davis, D. S. | en_US |
dc.contributor.author | de Angelis, A. | en_US |
dc.contributor.author | Digel, S. W. | en_US |
dc.contributor.author | Di Lalla, N. | en_US |
dc.contributor.author | Di Mauro, M. | en_US |
dc.contributor.author | Di Venere, L. | en_US |
dc.contributor.author | Favuzzi, C. | en_US |
dc.contributor.author | Fegan, S. J. | en_US |
dc.contributor.author | Ferrara, E. C. | en_US |
dc.contributor.author | Focke, W. B. | en_US |
dc.contributor.author | Guiriec, S. | en_US |
dc.contributor.author | Fukazawa, Y. | en_US |
dc.contributor.author | Funk, S. | en_US |
dc.contributor.author | Fusco, P. | en_US |
dc.contributor.author | Gargano, F. | en_US |
dc.contributor.author | Gasparrini, D. | en_US |
dc.contributor.author | Georganopoulos, M. | en_US |
dc.contributor.author | Giglietto, N. | en_US |
dc.contributor.author | Giordano, F. | en_US |
dc.contributor.author | GIROLETTI, MARCELLO | en_US |
dc.contributor.author | Godfrey, G. | en_US |
dc.contributor.author | Hays, E. | en_US |
dc.contributor.author | Green, D. | en_US |
dc.contributor.author | Grenier, I. A. | en_US |
dc.contributor.author | Hewitt, J. W. | en_US |
dc.contributor.author | Hill, A. B. | en_US |
dc.contributor.author | Jogler, T. | en_US |
dc.contributor.author | Jóhannesson, G. | en_US |
dc.contributor.author | Kensei, S. | en_US |
dc.contributor.author | Kuss, M. | en_US |
dc.contributor.author | Larsson, S. | en_US |
dc.contributor.author | Latronico, L. | en_US |
dc.contributor.author | Michelson, P. F. | en_US |
dc.contributor.author | Li, J. | en_US |
dc.contributor.author | Li, L. | en_US |
dc.contributor.author | Longo, F. | en_US |
dc.contributor.author | Loparco, F. | en_US |
dc.contributor.author | Lubrano, P. | en_US |
dc.contributor.author | Magill, J. D. | en_US |
dc.contributor.author | Maldera, S. | en_US |
dc.contributor.author | Manfreda, A. | en_US |
dc.contributor.author | Mayer, M. | en_US |
dc.contributor.author | Mazziotta, M. N. | en_US |
dc.contributor.author | Mitthumsiri, W. | en_US |
dc.contributor.author | McConville, W. | en_US |
dc.contributor.author | McEnery, J. E. | en_US |
dc.contributor.author | Mizuno, T. | en_US |
dc.contributor.author | Monzani, M. E. | en_US |
dc.contributor.author | Morselli, A. | en_US |
dc.contributor.author | Moskalenko, I. V. | en_US |
dc.contributor.author | Murgia, S. | en_US |
dc.contributor.author | Negro, M. | en_US |
dc.contributor.author | Nuss, E. | en_US |
dc.contributor.author | Ohno, M. | en_US |
dc.contributor.author | Razzano, M. | en_US |
dc.contributor.author | Ohsugi, T. | en_US |
dc.contributor.author | Orienti, M. | en_US |
dc.contributor.author | Orlando, E. | en_US |
dc.contributor.author | Ormes, J. F. | en_US |
dc.contributor.author | Paneque, D. | en_US |
dc.contributor.author | Perkins, J. S. | en_US |
dc.contributor.author | Pesce-Rollins, M. | en_US |
dc.contributor.author | Piron, F. | en_US |
dc.contributor.author | Pivato, G. | en_US |
dc.contributor.author | Porter, T. A. | en_US |
dc.contributor.author | Reimer, A. | en_US |
dc.contributor.author | Rainò, S. | en_US |
dc.contributor.author | Rando, R. | en_US |
dc.contributor.author | Reimer, O. | en_US |
dc.contributor.author | Schmid, J. | en_US |
dc.contributor.author | Sgrò, C. | en_US |
dc.contributor.author | Simone, D. | en_US |
dc.contributor.author | Siskind, E. J. | en_US |
dc.contributor.author | Spada, F. | en_US |
dc.contributor.author | Spandre, G. | en_US |
dc.contributor.author | Spinelli, P. | en_US |
dc.contributor.author | Brandt, T. J. | en_US |
dc.contributor.author | Stawarz, Ł. | en_US |
dc.contributor.author | Takahashi, H. | en_US |
dc.contributor.author | Thayer, J. B. | en_US |
dc.contributor.author | Thompson, D. J. | en_US |
dc.contributor.author | Torres, D. F. | en_US |
dc.contributor.author | Tosti, G. | en_US |
dc.contributor.author | Troja, E. | en_US |
dc.contributor.author | Vianello, G. | en_US |
dc.contributor.author | Wood, K. S. | en_US |
dc.contributor.author | Wood, M. | en_US |
dc.contributor.author | Bregeon, J. | en_US |
dc.contributor.author | Zimmer, S. | en_US |
dc.date.accessioned | 2020-05-14T16:46:13Z | - |
dc.date.available | 2020-05-14T16:46:13Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/24843 | - |
dc.description.abstract | We report the Fermi Large Area Telescope detection of extended γ-ray emission from the lobes of the radio galaxy Fornax A using 6.1 years of Pass 8 data. After Centaurus A, this is now the second example of an extended γ-ray source attributed to a radio galaxy. Both an extended flat disk morphology and a morphology following the extended radio lobes were preferred over a point-source description, and the core contribution was constrained to be < 14% of the total γ-ray flux. A preferred alignment of the γ-ray elongation with the radio lobes was demonstrated by rotating the radio lobes template. We found no significant evidence for variability on ∼0.5 year timescales. Taken together, these results strongly suggest a lobe origin for the γ-rays. With the extended nature of the > 100 MeV γ-ray emission established, we model the source broadband emission considering currently available total lobe radio and millimeter flux measurements, as well as X-ray detections attributed to inverse Compton (IC) emission off the cosmic microwave background (CMB). Unlike the Centaurus A case, we find that a leptonic model involving IC scattering of CMB and extragalactic background light (EBL) photons underpredicts the γ-ray fluxes by factors of about ∼2-3, depending on the EBL model adopted. An additional γ-ray spectral component is thus required, and could be due to hadronic emission arising from proton-proton collisions of cosmic rays with thermal plasma within the radio lobes. | en_US |
dc.language.iso | eng | en_US |
dc.title | Fermi Large Area Telescope Detection of Extended Gamma-Ray Emission from the Radio Galaxy Fornax A | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/826/1/1 | en_US |
dc.identifier.scopus | 2-s2.0-84979233553 | en_US |
dc.identifier.isi | 000381962200001 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/826/1/1 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 826 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 1 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016ApJ...826....1A | en_US |
dc.relation.ercsector | Scienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.orcid | 0000-0003-2478-8018 | - |
crisitem.author.orcid | 0000-0001-7618-7527 | - |
crisitem.author.orcid | 0000-0002-8657-8852 | - |
crisitem.author.orcid | 0000-0003-4470-7094 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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Ackermann_2016_ApJ_826_1.pdf | PDF editoriale | 1.04 MB | Adobe PDF | View/Open |
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