OBSERVATION OF SUPERNOVA REMNANT IC 443 WITH THE FERMI LARGE AREA TELESCOPE

2010/02/10 by A. A. Abdo, M. Ackermann, M. Ajello +97 · 3 voices · 240 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmic ray #Crab Nebula #Dark Matter and Cosmic Phenomena #Fermi Gamma-ray Space Telescope #Galactic plane #Galaxy #Gamma ray #Gamma-ray bursts and supernovae #Interstellar medium #MAGIC (telescope) #Physics #Pulsar #Pulsar wind nebula #Spitzer Space Telescope #Supernova #Supernova remnant #Telescope #astro-ph.HE

paper · pdf · doi:10.1088/0004-637x/712/1/459

published in The Astrophysical Journal 712(1), 459-468 (IOP Publishing) · To appear in The Astrophysical Journal v712 (March 2010)

arxiv created 2010/02/10 · openalex publication_date 2010/03/03 · arxiv updated 2015/05/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

ABSTRACT We report observation of the supernova remnant (SNR) IC 443 (G189.1+3.0) with the Fermi Gamma-ray Space Telescope Large Area Telescope (LAT) in the energy band between 200 MeV and 50 GeV. IC 443 is a shell-type SNR with mixed morphology located off the outer Galactic plane where high-energy emission has been detected in the X-ray, GeV and TeV gamma-ray bands. Past observations suggest IC 443 has been interacting with surrounding interstellar matter. Proximity between dense shocked molecular clouds and GeV–TeV gamma-ray emission regions detected by EGRET , MAGIC , and VERITAS suggests an interpretation that cosmic-ray (CR) particles are accelerated by the SNR. With the high gamma-ray statistics and broad energy coverage provided by the LAT, we accurately characterize the gamma-ray emission produced by the CRs accelerated at IC 443. The emission region is extended in the energy band with θ 68 = 0.°27 ± 0.°01(stat) ± 0.°03(sys) for an assumed two-dimensional Gaussian profile and overlaps almost completely with the extended source region of VERITAS . Its centroid is displaced significantly from the known pulsar wind nebula (PWN) which suggests the PWN is not the major contributor in the present energy band. The observed spectrum changes its power-law slope continuously and continues smoothly to the MAGIC and VERITAS data points. The combined gamma-ray spectrum (200 MeV < E < 2 TeV) is reproduced well by decays of neutral pions produced by a broken power-law proton spectrum with a break around 70 GeV.

Cited by

• New identification of the mixed-morphology supernova remnant G298.6−0.0 with possible gamma-ray association
• Multiwavelength study of non-thermal emission in the Swift J1834.9-0846/W41 region
• Supernova remnants: the X-ray perspective
• Analysis of the Supernova Remnant IC 443 using H.E.S.S. Data
• Fermi Large Area Telescope Fourth Source Catalog
• Fermi Large Area Telescope Second Source Catalog
• Search for Extended Sources in the Galactic Plane Using Six Years of Fermi-Large Area Telescope Pass 8 Data above 10 GeV
• Alfvén wave amplification and self-containment of cosmic rays escaping from a supernova remnant
• AKARINEAR-INFRARED SPECTRAL OBSERVATIONS OF SHOCKED H2GAS OF THE SUPERNOVA REMNANT IC 443
• Understanding hadronic gamma-ray emission from supernova remnants
• Diffusion of cosmic rays in a multiphase interstellar medium swept-up by a supernova remnant blast wave
• Revisiting SNR Puppis A with Seven Years of Fermi Large Area Telescope Observations
• Recent developments in cosmic ray physics
• RECOMBINING PLASMA IN THE GAMMA-RAY-EMITTING MIXED-MORPHOLOGY SUPERNOVA REMNANT 3C 391
• On particle acceleration and transport in plasmas in the Galaxy: theory and observations
• NuSTAR Detection of a Hard X-Ray Source in the Supernova Remnant-molecular Cloud Interaction Site of IC 443
• THE FERMI LARGE AREA TELESCOPE ON ORBIT: EVENT CLASSIFICATION, INSTRUMENT RESPONSE FUNCTIONS, AND CALIBRATION
• A view of supernova remnant CTB 37A with the Fermi Gamma-ray Space Telescope

Discussions

• APOD: 2026 February 27 - Sharpless 249 and the Jellyfish Nebula [lemmy, 40 points, 0 comments]
• APOD: 2026 February 27 - Sharpless 249 and the Jellyfish Nebula [lemmy, 28 points, 1 comments]
• its cousin in astrophysical waters the Crab Nebula supernova remnant, the Jellyfish Nebula is known to harbor a neutron star, the ultradense remnant of the collapsed stellar core. An emission nebula c [bsky, 9 points, 1 comments]

Related

• Observation of the Supernova Remnant IC 443 with VERITAS
• Analysis of the Supernova Remnant IC 443 using H.E.S.S. Data
• The TeV Morphology of the Interacting Supernova Remnant IC 443
• Evidence of cosmic-ray acceleration up to sub-PeV energies in the supernova remnant IC 443
• Fermi-LAT detection of the supernova remnant G312.4-0.4 in the vicinity of 4FGL J1409.1-6121e