Planetary nebulae as standard candles. V.
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We identify and measure the [O III] {lambda}5007 fluxes of 486 planetary nebula candidates in six early-type galaxies (NGC 4374, 4382, 4406, 4472, 4486, and 4649) in the core of...
我们对6个早型星系(NGC 4374、4382、4406、4472、4486及4649)核心区域内的486个行星状星云候选体的[O III] λ5007谱线流量进行了识别与测量



