论文标题

冒名顶替者揭示了:SN 2016JBU是末端爆炸

The impostor revealed: SN 2016jbu was a terminal explosion

论文作者

Brennan, S. J., Elias-Rosa, N., Fraser, M., Van Dyk, S. D., Lyman, J. D.

论文摘要

在这封信中,我们介绍了相互作用瞬态的哈勃太空望远镜SN 2016JBU的最新观察结果, +5年。我们没有发现SN 2016JBU发生任何额外爆发的证据,现在的光源已大大低于2016年初的祖细胞幅度。与最近对SN 2009IP和SN 2015BH的最近观察结果相似,SN 2016JBU在过去2年中并没有实现重大变化,这表明缺乏在上面的粉尘形式。我们发现SN 2016JBU的褪色速度比放射性镍所期望的要慢,但比SN 2009IP的衰减更快。后期光曲线显示出非线性的下降,随后发生了重新夸张事件,该事件发生在峰值亮度后8个月发生$ \ sim,这表明CSM相互作用继续主导SN 2016JBU。尽管我们的光学观察结果与幸存的,热的,灰尘的恒星合理地一致,但这将需要令人难以置信的大灰尘质量。这些新的观察结果表明,SN 2016JBU是一个真正的,尽管很奇怪,超新星,我们讨论了幸存的二元伴侣的合理性。

In this letter, we present recent observations from the Hubble Space Telescope of the interacting transient, SN 2016jbu, at +5 years. We find no evidence for any additional outburst from SN 2016jbu, and the optical source has now faded significantly below the progenitor magnitudes from early 2016. Similar to recent observations of SN 2009ip and SN 2015bh, SN 2016jbu has not undergone a significant change in colour over the past 2 years, suggesting that there is a lack of on-going dust formation. We find SN 2016jbu is fading slower than that expected from radioactive nickel, but faster than the decay of SN 2009ip. The late time light curve displays a non-linear decline and follows on from a re-brightening event that occurred $\sim$8 months after peak brightness, suggesting CSM interaction continues to dominate SN 2016jbu. While our optical observations are plausibly consistent with a surviving, hot, dust-enshrouded star, this would require an implausibly large dust mass. These new observations suggest that SN 2016jbu is a genuine, albeit strange, supernova, and we discuss the plausibility of a surviving binary companion.

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