Molecular Shocks and the Gamma-ray Clouds of the W28 Supernova Remnant
| Autor: | Phoebe de Wilt, N. Maxted, Yasuo Fukui, Gavin Rowell, Michael G. Burton, Catherine Braiding, Akiko Kawamura, Andrew Walsh |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
High Energy Astrophysical Phenomena (astro-ph.HE) Molecular cloud Astrophysics::High Energy Astrophysical Phenomena Gamma ray FOS: Physical sciences Cosmic ray Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Interstellar medium Diffusion (business) Supernova remnant Astrophysics - High Energy Astrophysical Phenomena Astrophysics::Galaxy Astrophysics |
| DOI: | 10.48550/arxiv.1610.00865 |
| Popis: | Interstellar medium clouds in the W28 region are emitting gamma-rays and it is likely that the W28 supernova remnant is responsible, making W28 a prime candidate for the study of cosmic-ray acceleration and diffusion. Understanding the influence of both supernova remnant shocks and cosmic rays on local molecular clouds can help to identify multi-wavelength signatures of probable cosmic-ray sources. To this goal, transitions of OH, SiO, NH3, HCO+ and CS have complemented CO in allowing a characterization of the chemically rich environment surrounding W28. This remnant has been an ideal test-bed for techniques that will complement arcminute-scale studies of cosmic-ray source candidates with future GeV-PeV gamma-ray observations. Comment: 6 pages, 3 figures, submitted to the American Institute of Physics Conference Series |
| Databáze: | OpenAIRE |
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