OJ 287在黑洞二元模型中预测的2022年圆盘撞击的观测意义

IF 3.2 Q2 ASTRONOMY & ASTROPHYSICS
Galaxies Pub Date : 2023-07-03 DOI:10.3390/galaxies11040082
M. Valtonen, L. Dey, A. Gopakumar, S. Zoła, A. Lähteenmäki, M. Tornikoski, Alok C. Gupta, T. Pursimo, E. Knudstrup, J. Gómez, R. Hudec, Martin Jelínek, J. Štrobl, A. Berdyugin, S. Ciprini, D. Reichart, V. Kouprianov, K. Matsumoto, M. Dróżdż, M. Mugrauer, A. Sadun, M. Zejmo, A. Sillanpää, H. Lehto, K. Nilsson, R. Imazawa, M. Uemura
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引用次数: 1

摘要

我们总结了OJ 287观测活动的结果,该活动在2021/2022观测季节进行。这个季节在双星模型中是特殊的,因为进动双星的主轴恰好位于初级吸积盘的平面上。这导致了2005年和2022年次级黑洞和吸积盘之间几乎相同的成对撞击。2005年,在磁盘撞击35天后,观测到了一种名为“蓝色闪光”的特殊耀斑,这也应该在2022年得到证实。我们确实观察到了类似的闪光,并能够获得其性质的更多细节。我们在扩展云模型的框架中对此进行了描述。此外,我们能够从其光偏振和伽马射线特性中准确地识别出在圆盘交叉时产生的耀斑。这是一个重要的识别,因为它直接证实了轨道模型。此外,我们还看到了只持续了一天的巨大耀斑。我们可以将其理解为当次级黑洞的Roche瓣突然被来自主盘的气体淹没时,次级黑洞的喷流点亮。因此,这可能是我们第一次在OJ 287双星系统中直接观测到次级黑洞。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Observational Implications of OJ 287’s Predicted 2022 Disk Impact in the Black Hole Binary Model
We present a summary of the results of the OJ 287 observational campaign, which was carried out during the 2021/2022 observational season. This season is special in the binary model because the major axis of the precessing binary happens to lie almost exactly in the plane of the accretion disc of the primary. This leads to pairs of almost identical impacts between the secondary black hole and the accretion disk in 2005 and 2022. In 2005, a special flare called “blue flash” was observed 35 days after the disk impact, which should have also been verifiable in 2022. We did observe a similar flash and were able to obtain more details of its properties. We describe this in the framework of expanding cloud models. In addition, we were able to identify the flare arising exactly at the time of the disc crossing from its photo-polarimetric and gamma-ray properties. This is an important identification, as it directly confirms the orbit model. Moreover, we saw a huge flare that lasted only one day. We may understand this as the lighting up of the jet of the secondary black hole when its Roche lobe is suddenly flooded by the gas from the primary disk. Therefore, this may be the first time we directly observed the secondary black hole in the OJ 287 binary system.
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来源期刊
Galaxies
Galaxies Physics and Astronomy-Astronomy and Astrophysics
CiteScore
4.90
自引率
12.00%
发文量
100
审稿时长
11 weeks
期刊介绍: Es una revista internacional de acceso abierto revisada por pares que proporciona un foro avanzado para estudios relacionados con astronomía, astrofísica y cosmología. Areas temáticas Astronomía Astrofísica Cosmología Astronomía observacional: radio, infrarrojo, óptico, rayos X, neutrino, etc. Ciencia planetaria Equipos y tecnologías de astronomía. Ingeniería Aeroespacial Análisis de datos astronómicos. Astroquímica y Astrobiología. Arqueoastronomía Historia de la astronomía y cosmología. Problemas filosóficos en cosmología.
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