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Puppis A Supernova Remnant

links.ifttt.com/wf/click?upn=jGHDfwvrKDxaofcg5GVulsriiakl-2BLZD-2FEOsEk05Cts-3D_ZK9XMfi1BLECKI0Cqx7-2FPc-2FHGjieojwgjC-2B2xBKvDh5QAbIxj6Vqhdvg-2FdUTFVfwzqXvpsQbSYFL97GmMVflBJmex7Vb1YE9KmiOMGV-2F6v2... of a massive star, supernova remnant Puppis A is blasting into the surrounding interstellar medium about 7,000 light-years away. At that distance, links.ifttt.com/wf/click?upn=jGHDfwvrKDxaofcg5GVultm3bMa6svA1ZSDf9MVfPZU-3D_ZK9XMfi1BLECKI0Cqx7-2FPc-2FHGjieojwgjC-2B2xBKvDh5QAbIxj6Vqhdvg-2FdUTFVfwzqXvpsQbSYFL97GmMVflBJmex7Vb1YE9KmiOMGV-2F6v0ZPmG... based on broadband and narrowband optical image data is about 60 light-years across. As the supernova remnant (upper right) expands into its clumpy, non-uniform surroundings, shocked filaments of oxygen atoms glow in green-blue hues. Hydrogen and nitrogen are in red. Light from the initial supernova itself, triggered by the collapse of the massive ap961114.html, would have reached Earth about 3,700 years ago. The Puppis A remnant is actually seen through outlying emission from the closer but more ancient ap150101.html, near the crowded plane of our Milky Way galaxy. Still glowing across the electromagnetic spectrum Puppis A remains one of the brightest sources links.ifttt.com/wf/click?upn=jGHDfwvrKDxaofcg5GVuluNIamgFzuS3ljdAzTEKbGo-3D_ZK9XMfi1BLECKI0Cqx7-2FPc-2FHGjieojwgjC-2B2xBKvDh5QAbIxj6Vqhdvg-2FdUTFVfwzqXvpsQbSYFL97GmMVflBJmex7Vb1YE9KmiOMGV-2F6v00idg....

 

September 29, 2017

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This entry was posted on Friday, September 29th, 2017 at 7:39 am and is filed under 科学. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.




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