2002/05/25 by B. Uyanıker, B. Uyaniker, W. Reich +4 · 35 citations
Physics and Astronomy · #Astro and Planetary Science #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Confusion #Equator #Gamma-ray bursts and supernovae #Loop (graph theory) #Milky Way #Neutron star #Physics #Pulsar #Stars #Supernova #Supernova remnant #Telescope #astro-ph
paper · pdf · doi:10.1051/0004-6361:20020787
published in Astronomy and Astrophysics 389(2), L61-L64 (EDP Sciences) · 4 pages, 2 figures, Astron. Astrophys., accepted
arxiv created 2002/05/25 · openalex publication_date 2002/06/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The Cygnus Loop is classified as a middle-aged supernova remnant (SNR) located below the Galactic equator () and 770 pc away from us. Its large size and little confusion with Galactic emission makes it an ideal test ground for evolutionary and structural theories of SNRs. New radio continuum mapping of the Cygnus Loop at 2695 MHz with the Effelsberg 100-m telescope provides indications that the Cygnus Loop consists of two separate SNRs. Combining this result with data from the literature we argue that a secondary SNR exists in the south with a recently detected neutron star close to its center. Two interacting SNRs seem to be the best explanation to account for the Cygnus Loop observations at all wavelengths.