Publication:
DEEP MORPHOLOGICAL and SPECTRAL STUDY of the SNR RCW 86 with FERMI-LAT

Issued Date

2016-03-10

Resource Type

Article

ISSN

15384357
0004637X

DOI

10.3847/0004-637X/819/2/98

Other identifier(s)

2-s2.0-84960965322

Rights

Mahidol University

Rights Holder(s)

SCOPUS

Bibliographic Citation

Astrophysical Journal. Vol.819, No.2 (2016)

Suggested Citation

M. Ajello, L. Baldini, G. Barbiellini, D. Bastieri, R. Bellazzini, E. Bissaldi, E. D. Bloom, R. Bonino, E. Bottacini, T. J. Brandt, J. Bregeon, P. Bruel, R. Buehler, G. A. Caliandro, R. A. Cameron, M. Caragiulo, E. Cavazzuti, E. Charles, A. Chekhtman, S. Ciprini, J. Cohen-Tanugi, B. Condon, F. Costanza, S. Cutini, F. D'Ammando, F. De Palma, R. Desiante, N. Di Lalla, M. Di Mauro, L. Di Venere, P. S. Drell, G. Dubner, D. Dumora, L. Duvidovich, C. Favuzzi, W. B. Focke, P. Fusco, F. Gargano, D. Gasparrini, E. Giacani, N. Giglietto, T. Glanzman, D. A. Green, I. A. Grenier, S. Guiriec, E. Hays, J. W. Hewitt, A. B. Hill, D. Horan, T. Jogler, G. Jóhannesson, I. Jung-Richardt, S. Kensei, M. Kuss, S. Larsson, L. Latronico, M. Lemoine-Goumard, J. Li, L. Li, F. Longo, F. Loparco, M. N. Lovellette, P. Lubrano, J. Magill, S. Maldera, A. Manfreda, M. Mayer, M. N. Mazziotta, J. E. McEnery, P. F. Michelson, W. Mitthumsiri, T. Mizuno, M. E. Monzani, A. Morselli, I. V. Moskalenko, M. Negro DEEP MORPHOLOGICAL and SPECTRAL STUDY of the SNR RCW 86 with FERMI-LAT. Astrophysical Journal. Vol.819, No.2 (2016). doi:10.3847/0004-637X/819/2/98 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/43604

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Title

DEEP MORPHOLOGICAL and SPECTRAL STUDY of the SNR RCW 86 with FERMI-LAT

Author(s)

M. Ajello
 L. Baldini
 G. Barbiellini
 D. Bastieri
 R. Bellazzini
 E. Bissaldi
 E. D. Bloom
 R. Bonino
 E. Bottacini
 T. J. Brandt
 J. Bregeon
 P. Bruel
 R. Buehler
 G. A. Caliandro
 R. A. Cameron
 M. Caragiulo
 E. Cavazzuti
 E. Charles
 A. Chekhtman
 S. Ciprini
 J. Cohen-Tanugi
 B. Condon
 F. Costanza
 S. Cutini
 F. D'Ammando
 F. De Palma
 R. Desiante
 N. Di Lalla
 M. Di Mauro
 L. Di Venere
 P. S. Drell
 G. Dubner
 D. Dumora
 L. Duvidovich
 C. Favuzzi
 W. B. Focke
 P. Fusco
 F. Gargano
 D. Gasparrini
 E. Giacani
 N. Giglietto
 T. Glanzman
 D. A. Green
 I. A. Grenier
 S. Guiriec
 E. Hays
 J. W. Hewitt
 A. B. Hill
 D. Horan
 T. Jogler
 G. Jóhannesson
 I. Jung-Richardt
 S. Kensei
 M. Kuss
 S. Larsson
 L. Latronico
 M. Lemoine-Goumard
 J. Li
 L. Li
 F. Longo
 F. Loparco
 M. N. Lovellette
 P. Lubrano
 J. Magill
 S. Maldera
 A. Manfreda
 M. Mayer
 M. N. Mazziotta
 J. E. McEnery
 P. F. Michelson
 W. Mitthumsiri
 T. Mizuno
 M. E. Monzani
 A. Morselli
 I. V. Moskalenko
 M. Negro

Other Contributor(s)

Clemson University
 Università di Pisa
 Kavli Institute for Particle Astrophysics and Cosmology
 Istituto Nazionale di Fisica Nucleare, Roma
 Universita degli Studi di Trieste
 Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
 Università degli Studi di Padova
 Istituto Nazionale Di Fisica Nucleare, Sezione di Pisa
 Università degli Studi di Torino
 NASA Goddard Space Flight Center
 Laboratoire Univers et Particules de Montpellier
 Laboratoire Leprince-Ringuet
 Deutsche Elektronen-Synchrotron
 Consorzio Interuniversitario per la Fisica Spaziale (CIFS)
 Università degli Studi di Bari
 Agenzia Spaziale Italiana
 George Mason University, Fairfax Campus
 Centre d'Etudes Nucleaires de Bordeaux Gradignan
 Osservatorio Astronomico di Roma
 Istituto Di Radioastronomia, Bologna
 Alma Mater Studiorum Università di Bologna
 Università degli Studi di Napoli Federico II
 Universita degli Studi di Udine
 Instituto de Astronomia y Fisica del Espacio
 University of Cambridge
 Universite Paris 7- Denis Diderot
 University of North Florida
 University of Southampton
 University Science Institute Reykjavik
 Friedrich-Alexander-Universität Erlangen-Nürnberg
 Hiroshima University
 The Royal Institute of Technology (KTH)
 Oskar Klein Centre for Cosmoparticle Physics
 Universitat Autònoma de Barcelona
 Naval Research Laboratory
 University of Maryland
 Mahidol University
 University of Denver
 Max Planck Institut fur Physik (Werner-Heisenberg-Institut)
 University and Research (MIUR)
 Medizinische Universitat Innsbruck
 NYCB Realtime Computing Inc.

Abstract

© 2016. The American Astronomical Society. All rights reserved. RCW 86 is a young supernova remnant (SNR) showing a shell-type structure at several wavelengths and is thought to be an efficient cosmic-ray (CR) accelerator. Earlier Fermi Large Area Telescope results reported the detection of γ-ray emission coincident with the position of RCW 86 but its origin (leptonic or hadronic) remained unclear due to the poor statistics. Thanks to 6.5 years of data acquired by the Fermi-LAT and the new event reconstruction Pass 8, we report the significant detection of spatially extended emission coming from RCW 86. The spectrum is described by a power-law function with a very hard photon index in the 0.1-500 GeV range and an energy flux above 100 MeV of erg cm-2 s-1. Gathering all the available multiwavelength (MWL) data, we perform a broadband modeling of the nonthermal emission of RCW 86 to constrain parameters of the nearby medium and bring new hints about the origin of the γ-ray emission. For the whole SNR, the modeling favors a leptonic scenario in the framework of a two-zone model with an average magnetic field of 10.2 ±0.7 μG and a limit on the maximum energy injected into protons of 2 ×1049 erg for a density of 1 cm-3. In addition, parameter values are derived for the north-east and south-west (SW) regions of RCW 86, providing the first indication of a higher magnetic field in the SW region.

Keyword(s)

Earth and Planetary Sciences

Availability

URI

https://repository.li.mahidol.ac.th/handle/20.500.14594/43604

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Scopus 2016-2017