作者: P., Jr. Shull
DOI: 10.1086/161559
关键词: Astronomy 、 Shock wave 、 Astronomical spectroscopy 、 Spectrograph 、 Physics 、 Large Magellanic Cloud 、 Supernova remnant 、 Interstellar medium 、 Spectral line 、 Astrophysics 、 Supernova 、 Space and Planetary Science 、 Astronomy and Astrophysics
摘要: The present investigation of N49, which is located in the Large Magellanic Cloud (LMC), makes use an analysis optical emission-line profiles. Echelle spectrograph observations indicate large-scale kinematic and structural properties N49. It found that this supernova remnant (SNR) evolving a clumpy interstellar medium (ISM), probably as many other remnants are. very high resolution spectra show three kinds spectral feature, called broad bands, narrow spikes. shown N49 can be regarded product explosion heterogeneous medium. heterogeneity indicated low-speed high-speed systems shocked material