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Imaging Extragalactic Supernovae

25 Nov 2018, 15:42 UTC
Imaging Extragalactic Supernovae
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Since the Astronomical Telescope for Educational Outreach (ATEO-1) went online back in May 2017, we have since had the chance to image galaxies and galaxy clusters with a 16" f/3.7 astrograph telescope. Besides using the remote robotic telescope for acquiring "pretty" pictures of deep-sky objects such as galaxies, it can also be used as a tool for gathering data for extragalactic supernovae search.Professional astronomers distinguish between two main classes of supernovae. The distinctions have to do with the type of explosion occurring, how it is triggered, the resulting light curve and the atomic elements visible in the spectrum of the supernova. However, for amateur astronomers’ purposes, we can consider two very basic types of a supernova: galactic and extragalactic. Our primary concern is with extragalactic supernovae, as a galactic supernova is far more infrequent an event than even a brilliant comet, solar eclipse, or any of a number of other “rare” astronomical phenomena. In fact, more than a dozen generations have passed without any human witnessing a supernova in our own Milky Way galaxy!ASASSN-16cs/ SN 2016asf - Image Credit: PanSTARRS-1 Image AccessImaging supernovae involve imaging galaxies as mentioned above. There are few other considerations than those normally applied to capturing ...

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