稀有的系外行星“凤凰”是一颗位于红巨星附近的热海王星，与预期相反，它保留了大气层。 Rare exoplanet "Phoenix", a hot Neptune near a red giant, retains an atmosphere contrary to expectations.

一颗绰号为“凤凰”的罕见系外行星引起了科学家们的极大兴趣，因为它在受到附近红巨星强烈辐射的情况下仍能保留大气层。 A rare exoplanet, nicknamed "Phoenix", has intrigued scientists due to its ability to retain an atmosphere despite the intense radiation from its nearby red giant host star. 这颗被称为“热海王星”的行星本应被剥离大气层，但它却保留了蓬松的大气层，这对现有的行星在极端环境下衰老和死亡的理论提出了挑战。 Dubbed a "hot Neptune", the planet should have been stripped of its atmosphere, yet it has managed to retain a puffy atmosphere, challenging existing theories about how planets age and die in extreme environments. 该研究结果发表在《天文学杂志》上。 The findings were published in The Astronomical Journal.