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New approaches to SNe Ia progenitors
New Astronomy Reviews ( IF 6 ) Pub Date : 2014-10-01 , DOI: 10.1016/j.newar.2014.08.002 Pilar Ruiz-Lapuente
New Astronomy Reviews ( IF 6 ) Pub Date : 2014-10-01 , DOI: 10.1016/j.newar.2014.08.002 Pilar Ruiz-Lapuente
Although Type Ia supernovae (SNe Ia) are a major tool in cosmology and play a key role in the chemical evolution of galaxies, the nature of their progenitor systems (apart from the fact that they must contain at least one white dwarf, that explodes) remains largely unknown. In the last decade, considerable efforts have been made, both observationally and theoretically, to solve this problem. Observations have, however, revealed a previously unsuspected variety of events, ranging from very underluminous outbursts to clearly overluminous ones, and spanning a range well outside the peak luminosity--decline rate of the light curve relationship, used to make calibrated candles of the SNe Ia. On the theoretical side, new explosion scenarios, such as violent mergings of pairs of white dwarfs, have been explored. We review those recent developments, emphasizing the new observational findings, but also trying to tie them to the different scenarios and explosion mechanisms proposed thus far.
中文翻译:
SNe Ia 祖细胞的新方法
尽管 Ia 型超新星 (SNe Ia) 是宇宙学的主要工具,并在星系的化学演化中发挥关键作用,但它们的祖先系统的性质(除了它们必须包含至少一颗会爆炸的白矮星这一事实之外)在很大程度上仍然未知。在过去的十年中,为了解决这个问题,人们在观察和理论上都做出了相当大的努力。然而,观测已经揭示了以前未曾预料到的各种事件,从非常低亮度的爆发到明显过亮的爆发,并且跨越了一个远远超出峰值光度的范围——光度曲线关系的下降率,用于制作超新星的校准烛光我。在理论方面,已经探索了新的爆炸场景,例如成对的白矮星的猛烈合并。我们回顾了最近的发展,
更新日期:2014-10-01
中文翻译:
SNe Ia 祖细胞的新方法
尽管 Ia 型超新星 (SNe Ia) 是宇宙学的主要工具,并在星系的化学演化中发挥关键作用,但它们的祖先系统的性质(除了它们必须包含至少一颗会爆炸的白矮星这一事实之外)在很大程度上仍然未知。在过去的十年中,为了解决这个问题,人们在观察和理论上都做出了相当大的努力。然而,观测已经揭示了以前未曾预料到的各种事件,从非常低亮度的爆发到明显过亮的爆发,并且跨越了一个远远超出峰值光度的范围——光度曲线关系的下降率,用于制作超新星的校准烛光我。在理论方面,已经探索了新的爆炸场景,例如成对的白矮星的猛烈合并。我们回顾了最近的发展,