Optical spectrum of the blazar PKS 0447-439
收藏B2FIND2026-03-19 收录
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https://b2find.eudat.eu/dataset/ddb5af71-9d42-5cda-b591-80f2fb451a64
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PKS 0447-439 is one of the BL Lacertae objects that have been detected at very high energy. There has been a recent report of a lower limit of z>=1.246 for the redshift of...
