Long-term photometry for 4 O-rich PPne
收藏B2FIND2026-03-19 收录
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We present new light curves covering 14-19years of observations of four bright proto-planetary nebulae (PPNs), all oxygen-rich and of F spectral type. They each display cyclical...
本研究报道了4颗明亮原行星状星云(proto-planetary nebulae, PPNs)14至19年的观测新光变曲线,这些天体均为富氧且属于F光谱型,且均表现出周期性……



