论文标题
终止与超级蓝色超级巨人
Terminating a common envelope jets supernova impostor event with a super-Eddington blue supergiant
论文作者
论文摘要
我们进行了一维恒星进化的数值模拟，以构建具有非常低的Envelope质量的蓝色超级恒星模型和10^7lo的Super-deddington LuminiSulys，模仿了一个共同的包膜进化（CEE）的最后阶段，其中中子星星（NS）质量是来自Invelope和Invelope andvelope and启动System System System System Syste Syste Syste Syste。普通的信封喷射超新星（CEJSNE）是CEE瞬态事件，其中NS螺旋在信封内部，然后是红色超级巨星（RSG）恒星的核心，并发射为瞬态事件提供动力的喷气机。如果NS（或黑洞）未进入RSG的核心，则事件是CEJSN-IMPOSTOR。我们建议在某些情况下，CEJSN-IMPOSTOR事件可能以如此持续数年到几年的蓝色超级巨人的阶段结束。蓝色超级巨人的半径约为数百个太阳半径。我们使用简单的处方将喷气机能量沉积到信封中。我们发现，在CEE末端，信封质量的预期增生速率使喷气机的功率正如我们假设的10^7lo一样。这样的低质量信封可能是RSG信封的终结，或者可能是大规模后备的重建信封。我们对CEJSN-IMPOSTOR事件终止的蓝色超级巨人的研究增加了Cejsne和Cejsn-Impostors可能形成的丰富瞬变。
We conducted one-dimensional stellar evolutionary numerical simulations to build blue supergiant stellar models with a very low-envelope mass and a super-Eddington luminosity of 10^7Lo that mimic the last phase of a common envelope evolution (CEE) where a neutron star (NS) accretes mass from the envelope and launches jets that power the system. Common envelope jets supernovae (CEJSNe) are CEE transient events where a NS spirals-in inside the envelope and then the core of a red supergiant (RSG) star accretes mass and launches jets that power the transient event. In case that the NS (or black hole) does not enter the core of the RSG the event is a CEJSN-impostor. We propose that in some cases a CEJSN-impostor event might end with such a phase of a blue supergiant lasting for several years to few tens of years. The radius of the blue supergiant is about tens to few hundreds solar radii. We use a simple prescription to deposit the jets energy into the envelope. We find that the expected accretion rate of envelope mass onto the NS at the end of the CEE allows the power of the jets to be as we assume, 10^7Lo. Such a low-mass envelope might be the end of the RSG envelope, or might be a rebuilt envelope from mass fallback. Our study of a blue supergiant at the termination of a CEJSN-impostor event adds to the rich variety of transients that CEJSNe and CEJSN-impostors might form.
