onr:"swepub:oai:DiVA.org:kth-192747"
Search: onr:"swepub:oai:DiVA.org:kth-192747" > FERMI LARGE AREA TE...
- 1 of 1
- Previous record
- Next record
- To hitlist
FERMI LARGE AREA TELESCOPE DETECTION OF EXTENDED GAMMA-RAY EMISSION FROM THE RADIO GALAXY FORNAX A
- Ackermann, M. (author)
- Ajello, M. (author)
- Baldini, L. (author)
- show more...
- Ballet, J. (author)
- Barbiellini, G. (author)
- Bastieri, D. (author)
- Bellazzini, R. (author)
- Bissaldi, E. (author)
- Blandford, R. D. (author)
- Bloom, E. D. (author)
- Bonino, R. (author)
- Brandt, T. J. (author)
- Bregeon, J. (author)
- Bruel, P. (author)
- Buehler, R. (author)
- Buson, S. (author)
- Caliandro, G. A. (author)
- Cameron, R. A. (author)
- Caragiulo, M. (author)
- Caraveo, P. A. (author)
- Cavazzuti, E. (author)
- Cecchi, C. (author)
- Charles, E. (author)
- Chekhtman, A. (author)
- Cheung, C. C. (author)
- Chiaro, G. (author)
- Ciprini, S. (author)
- Cohen, J. M. (author)
- Cohen-Tanugi, J. (author)
- Costanza, F. (author)
- Cutini, S. (author)
- D'Ammando, F. (author)
- Davis, D. S. (author)
- de Angelis, A. (author)
- de Palma, F. (author)
- Desiante, R. (author)
- Digel, S. W. (author)
- Di Lalla, N. (author)
- Di Mauro, M. (author)
- Di Venere, L. (author)
- Favuzzi, C. (author)
- Fegan, S. J. (author)
- Ferrara, E. C. (author)
- Focke, W. B. (author)
- Fukazawa, Y. (author)
- Funk, S. (author)
- Fusco, P. (author)
- Gargano, F. (author)
- Gasparrini, D. (author)
- Georganopoulos, M. (author)
- Giglietto, N. (author)
- Giordano, F. (author)
- Giroletti, M. (author)
- Godfrey, G. (author)
- Green, D. (author)
- Grenier, I. A. (author)
- Guiriec, S. (author)
- Hays, E. (author)
- Hewitt, J. W. (author)
- Hill, A. B. (author)
- Jogler, T. (author)
- Johnnesson, G. (author)
- Kensei, S. (author)
- Kuss, M. (author)
- Latronico, L. (author)
- Li, J. (author)
- Li, L. (author)
- Longo, F. (author)
- Loparco, F. (author)
- Lubrano, P. (author)
- Magill, J. D. (author)
- Maldera, S. (author)
- Manfreda, A. (author)
- Mayer, M. (author)
- Mazziotta, M. N. (author)
- McConville, W. (author)
- McEnery, J. E. (author)
- Michelson, P. F. (author)
- Mitthumsiri, W. (author)
- Mizuno, T. (author)
- Monzani, M. E. (author)
- Morselli, A. (author)
- Moskalenko, I. V. (author)
- Murgia, S. (author)
- Negro, M. (author)
- Nuss, E. (author)
- Ohno, M. (author)
- Ohsugi, T. (author)
- Orienti, M. (author)
- Orlando, E. (author)
- Ormes, J. F. (author)
- Paneque, D. (author)
- Perkins, J. S. (author)
- Pesce-Rollins, M. (author)
- Piron, F. (author)
- Pivato, G. (author)
- Porter, T. A. (author)
- Raino, S. (author)
- Rando, R. (author)
- Razzano, M. (author)
- Reimer, A. (author)
- Reimer, O. (author)
- Schmid, J. (author)
- Sgro, C. (author)
- Simone, D. (author)
- Siskind, E. J. (author)
- Spada, F. (author)
- Spandre, G. (author)
- Spinelli, P. (author)
- Stawarz, L. (author)
- Takahashi, H. (author)
- Thayer, J. B. (author)
- Thompson, D. J. (author)
- Torres, D. F. (author)
- Tosti, G. (author)
- Troja, E. (author)
- Vianello, G. (author)
- Wood, K. S. (author)
- Wood, M. (author)
- Zimmer, S. (author)
- show less...
- (creator_code:org_t)
- Institute of Physics Publishing (IOPP), 2016
- 2016
- English.
- In: Astrophysical Journal. - : Institute of Physics Publishing (IOPP). - 0004-637X .- 1538-4357. ; 826:1
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- We report the Fermi Large Area Telescope detection of extended gamma-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 gamma-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 gamma-ray flux. A preferred alignment of the gamma-ray elongation with the radio lobes was demonstrated by rotating the radio lobes template. We found no significant evidence for variability on similar to 0.5 year timescales. Taken together, these results strongly suggest a lobe origin for the gamma-rays. With the extended nature of the > 100 MeV gamma-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 gamma-ray fluxes by factors of about similar to 2-3, depending on the EBL model adopted. An additional gamma-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.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- galaxies: active
- galaxies: individual (Fornax A)
- galaxies: jets
- gamma rays: galaxies
- radiation mechanisms: non-thermal
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Astrophysical Journal (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Ackermann, M.
- Ajello, M.
- Baldini, L.
- Ballet, J.
- Barbiellini, G.
- Bastieri, D.
- show more...
- Bellazzini, R.
- Bissaldi, E.
- Blandford, R. D.
- Bloom, E. D.
- Bonino, R.
- Brandt, T. J.
- Bregeon, J.
- Bruel, P.
- Buehler, R.
- Buson, S.
- Caliandro, G. A.
- Cameron, R. A.
- Caragiulo, M.
- Caraveo, P. A.
- Cavazzuti, E.
- Cecchi, C.
- Charles, E.
- Chekhtman, A.
- Cheung, C. C.
- Chiaro, G.
- Ciprini, S.
- Cohen, J. M.
- Cohen-Tanugi, J.
- Costanza, F.
- Cutini, S.
- D'Ammando, F.
- Davis, D. S.
- de Angelis, A.
- de Palma, F.
- Desiante, R.
- Digel, S. W.
- Di Lalla, N.
- Di Mauro, M.
- Di Venere, L.
- Favuzzi, C.
- Fegan, S. J.
- Ferrara, E. C.
- Focke, W. B.
- Fukazawa, Y.
- Funk, S.
- Fusco, P.
- Gargano, F.
- Gasparrini, D.
- Georganopoulos, ...
- Giglietto, N.
- Giordano, F.
- Giroletti, M.
- Godfrey, G.
- Green, D.
- Grenier, I. A.
- Guiriec, S.
- Hays, E.
- Hewitt, J. W.
- Hill, A. B.
- Jogler, T.
- Johnnesson, G.
- Kensei, S.
- Kuss, M.
- Larsson, Stefan
- Latronico, L.
- Li, J.
- Li, L.
- Longo, F.
- Loparco, F.
- Lubrano, P.
- Magill, J. D.
- Maldera, S.
- Manfreda, A.
- Mayer, M.
- Mazziotta, M. N.
- McConville, W.
- McEnery, J. E.
- Michelson, P. F.
- Mitthumsiri, W.
- Mizuno, T.
- Monzani, M. E.
- Morselli, A.
- Moskalenko, I. V ...
- Murgia, S.
- Negro, M.
- Nuss, E.
- Ohno, M.
- Ohsugi, T.
- Orienti, M.
- Orlando, E.
- Ormes, J. F.
- Paneque, D.
- Perkins, J. S.
- Pesce-Rollins, M ...
- Piron, F.
- Pivato, G.
- Porter, T. A.
- Raino, S.
- Rando, R.
- Razzano, M.
- Reimer, A.
- Reimer, O.
- Schmid, J.
- Sgro, C.
- Simone, D.
- Siskind, E. J.
- Spada, F.
- Spandre, G.
- Spinelli, P.
- Stawarz, L.
- Takahashi, H.
- Thayer, J. B.
- Thompson, D. J.
- Torres, D. F.
- Tosti, G.
- Troja, E.
- Vianello, G.
- Wood, K. S.
- Wood, M.
- Zimmer, S.
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Astronomy Astrop ...
- Articles in the publication
- Astrophysical Jo ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
