Recycling Matter in the Universe. X-ray observations of SBS1150+599A (PN G135.9+55.9)

摘要：

We present X-ray observations of the close binary nucleus of the planetary nebula SBS1150+599A obtained with the XMM-Newton satellite. Only one component of the binary can be observed in optical-UV. New X-ray observations show that the previously invisible component is a very hot compact star. This finding allows us to deduce rough values for the basic parameters of the binary. With a high probability the total mass of the system exceeds Chandrasekhar limit and makes the SBS1150+599A one of the best candidate for a supernova type Ia progenitor.

关键词： nuclei of planetary nebulae symbiotic stars Supernovae X-ray sources supersoft

作者: Gagik Tovmassian John Tomsick Ralf Napiwotzki Lev Yungelson Grakyna Stasinska Miriam Pena Michael Richer

作者单位: Institute of Astronomy, Universidad Nacional Autonoma de Mexico University California Berkeley, USA University of Hertfordshire, UK Institute of Astronomy, RAS, Russia Observatoire du Meudon, France

会议类型: 国际会议

会议名称: 紧凑型物体的天体物理学国际会议(International Conference on Astrophysics of Compact Objects)

会议地点: 安徽黄山

会议语种:英文

页码: 62-65

在线出版日期: 2007-07-01（万方平台首次上网日期，不代表论文的发表时间）