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1ES 1927+654

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1ES 1927+654
塞弗特星系1ES 1927+654
观测资料（J2000 曆元）
赤经19h 27m
赤纬+65° 4′ ″
距离2.7亿光年
特征
类型II型塞弗特星系
其他具有活跃星系核和特殊X射线瞬变现象
參見：星系、星系列表

1ES 1927+654是一个位于天龙座的2型塞弗特星系[1]，距离地球约2.7亿光年，其中心有一个活跃星系核（AGN）[2][3][4][5]。该星系外观相对普通，但其核心由超大质量黑洞供能，是其X射线闪光的来源。

该星系核的亮度和振荡行为不可预测，因而成为光学、射电、紫外和X射线波段特别观测的研究对象。多篇分析其异常特征的科学论文对吸积盘和黑洞环境的传统理论提出了挑战[6][7][8][9][10][11]。

“1ES 1927+654”是爱因斯坦快速巡天（Einstein Slew Survey）的一个星表编号，这项X波段巡天由爱因斯坦卫星实施，结果于1992年首次发布。

发现

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1ES 1927+654因其不可预测的行为而引起天文学家关注。其突变特性使其成为全球X射线、光学和射电观测站多波段联合观测的目标[12][13][2][14]。

该天体最早在爱因斯坦快速巡天观测中被编录，根据其发射线特征被归类为塞弗特星系[15]。

2017年监测到其亮度剧烈增加，星系紫外波段亮度增强了约40倍，引发了后续对成因的研究[8]。2018年X射线和紫外望远镜的详细观测显示，活跃星系核的吸积盘发生了部分或整体瓦解[14]。其准周期振荡（QPO）周期在两年内从18分钟缩短至7.1分钟，展现出独特的演变特征[16]。未来计划通过X射线和引力波观测验证可能的解释[16] 。

2020年的研究表明，极端变光现象可能与黑洞周围磁场失稳有关。这对黑洞吸积模型提出了挑战，并启发了有关活跃星系核爆发的新理论[17]。

2023-2024年间，甚长基线干涉测量观测到了黑洞附近形成的等离子体喷流[18]。

图像展

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参考资料

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  1. ^ Cao, Xinwu; You, Bei; Wei, Xing, An accretion disc with magnetic outflows triggered by a sudden mass accretion event in changing-look active galactic nucleus 1ES 1927+654, Monthly Notices of the Royal Astronomical Society, 2023-10-14, 526 (2): 2331, Bibcode:2023MNRAS.526.2331C, arXiv:2309.10610 可免费查阅, doi:10.1093/mnras/stad2877 可免费查阅 
  2. ^ 2.0 2.1 Reddy, Francis. Magnetic Flip Drives Flare-Up of Monster Black Hole. NASA Scientific Visualization Studio. May 5, 2022. 
  3. ^ Fauzia, Miriam. A Black Hole Flipping Its Magnetic Field Might Help Us to Find More: This is unexpected.. Daily Beast (New York). 2022-05-06. 
  4. ^ Zabludoff, Ann; Arcavi, Iair; La Massa, Stephanie; Perets, Hagai B.; Trakhtenbrot, Benny; Zauderer, B. Ashley; Auchettl, Katie; Dai, Jane L.; Decker French, K.; Hung, Tiara; Kara, Erin; Lodato, Giuseppe; Maksym, W. Peter; Qin, Yujing; Ramirez-Ruiz, Enrico; Roth, Nathaniel; Runnoe, Jessie C.; Wevers, Thomas. Distinguishing Tidal Disruption Events from Impostors. Springer Space Science Reviews. 2021. arXiv:2103.12150v2 可免费查阅. doi:10.48550/arXiv.2103.12150. 
  5. ^ Ghosh, Ritesh; Laha, Sibasish; Meyer, Eileen; Roychowdhury, Agniva; Yang, Xiaolong; Acosta–Pulido, J. A.; Rakshit, Suvendu; Pandey, Shivangi; González, Josefa Becerra; Behar, Ehud; Gallo, Luigi C.; Panessa, Francesca; Bianchi, Stefano; La Franca, Fabio; Scepi, Nicolas; Begelman, Mitchell C.; Longinotti, Anna Lia; Lusso, Elisabeta; Oates, Samantha; Nicholl, Matt; Cenko, S. Bradley; O'Connor, Brendan; Hammerstein, Erica; Jose, Jincen; Gabányi, Krisztina Éva; Ricci, Federica; Chattopadhyay, Sabyasachi. A Reemerging Bright Soft X-Ray State of the Changing-look Active Galactic Nucleus 1ES 1927+654: A Multiwavelength View. The Astrophysical Journal. 2023, 955 (1): 3. Bibcode:2023ApJ...955....3G. arXiv:2308.03602 可免费查阅. doi:10.3847/1538-4357/aced92 可免费查阅. 
  6. ^ Boller, Th.; Voges, W.; Dennefeld, M.; Lehmann, I.; Predehl, P.; Burwitz, V.; Perlman, E.; Gallo, L.; Papadakis, I. E.; Anderson, S. 1ES 1927+654: Persistent and rapid X-ray variability in an AGN with low intrinsic neutral X-ray absorption and narrow optical emission lines. Astronomy & Astrophysics. 2003, 397 (2): 557–564. Bibcode:2003A&A...397..557B. arXiv:astro-ph/0210369 可免费查阅. doi:10.1051/0004-6361:20021520. 
  7. ^ Gallo, L. C.; MacMackin, C.; Vasudevan, R.; Cackett, E. M.; Fabian, A. C.; Panessa, F. 1ES 1927+654: a bare Seyfert 2. Monthly Notices of the Royal Astronomical Society. July 1, 2013, 433 (1): 421–433. Bibcode:2013MNRAS.433..421G. arXiv:1304.7155 可免费查阅. doi:10.1093/mnras/stt735 可免费查阅. 
  8. ^ 8.0 8.1 Trakhtenbrot, Benny; Arcavi, Iair; MacLeod, Chelsea L.; Ricci, Claudio; Kara, Erin; Graham, Melissa L.; Stern, Daniel; Harrison, Fiona A.; Burke, Jamison; Hiramatsu, Daichi; Hosseinzadeh, Griffin; Howell, D. Andrew; Smartt, Stephen J.; Rest, Armin; Prieto, Jose L.; Shappee, Benjamin J.; Holoien, Thomas W. -S.; Bersier, David; Filippenko, Alexei V.; Brink, Thomas G.; Zheng, WeiKang; Li, Ruancun; Remillard, Ronald A.; Loewenstein, Michael. 1ES 1927+654: An AGN Caught Changing Look on a Timescale of Months. The Astrophysical Journal. September 1, 2019, 883 (1): 94. Bibcode:2019ApJ...883...94T. arXiv:1903.11084 可免费查阅. doi:10.3847/1538-4357/ab39e4 可免费查阅. 
  9. ^ Evolution of various aspects of the X-ray spectrum of 1ES 1927+654 from... | Download Scientific Diagram. ResearchGate.net. [2025-02-27]. （原始内容存档于2025-01-14）. 
  10. ^ Masterson, Megan; Kara, Erin; Ricci, Claudio; García, Javier A.; Fabian, Andrew C.; Pinto, Ciro; Kosec, Peter; Remillard, Ronald A.; Loewenstein, Michael; Trakhtenbrot, Benny; Arcavi, Iair. Evolution of a Relativistic Outflow and X-Ray Corona in the Extreme Changing-look AGN 1ES 1927+654 (pdf). The Astrophysical Journal. 20 July 2022, 934 (35): 35. Bibcode:2022ApJ...934...35M. arXiv:2206.05140 可免费查阅. doi:10.3847/1538-4357/ac76c0 可免费查阅 –通过ResearchGate.net. 
  11. ^ Chu, Jennifer. X-ray flashes from a nearby supermassive black hole accelerate mysteriously. MIT News. 2025-01-13 [2025-01-15]. （原始内容存档于2025-01-19） （英语）. 
  12. ^ Ricci, C.; Loewenstein, M.; Kara, E.; Remillard, R.; Trakhtenbrot, B.; Arcavi, I.; Gendreau, K. C.; Arzoumanian, Z.; Fabian, A. C.; Li, R.; Ho, L. C.; MacLeod, C. L.; Cackett, E.; Altamirano, D.; Gandhi, P.; Kosec, P.; Pasham, D.; Steiner, J.; Chan, C.-H. The 450 Day X-Ray Monitoring of the Changing-look AGN 1ES 1927+654. The Astrophysical Journal Supplement Series. 10 February 2021, 255 (1): 7. Bibcode:2021ApJS..255....7R. arXiv:2102.05666 可免费查阅. doi:10.3847/1538-4365/abe94b 可免费查阅. 
  13. ^ Trakhtenbrot, Benny; Arcavi, Iair; MacLeod, Chelsea L.; Ricci, Claudio; Kara, Erin; Graham, Melissa L.; Stern, Daniel; Harrison, Fiona A.; Burke, Jamison; Hiramatsu, Daichi; Hosseinzadeh, Griffin; Howell, D. Andrew; Smartt, Stephen J.; Rest, Armin; Prieto, Jose L.; Shappee, Benjamin J.; Holoien, Thomas W.-S.; Bersier, David; Filippenko, Alexei V.; Brink, Thomas G.; Zheng, WeiKang; Li, Ruancun; Remillard, Ronald A.; Loewenstein, Michael. 1ES 1927+654: An AGN Caught Changing Look on a Timescale of Months. The Astrophysical Journal. August 6, 2019, 883 (1): 94. Bibcode:2019ApJ...883...94T. arXiv:1903.11084 可免费查阅. doi:10.3847/1538-4357/ab39e4 可免费查阅. 
  14. ^ 14.0 14.1 Laha, Sibasish; Meyer, Eileen; Roychowdhury, Agniva; Becerra González, Josefa; Acosta-Pulido, J. A.; Thapa, Aditya; Ghosh, Ritesh; Behar, Ehud; Gallo, Luigi C.; Kriss, Gerard A.; Panessa, Francesca; Bianchi, Stefano; La Franca, Fabio; Scepi, Nicolas; Begelman, Mitchell C.; Longinotti, Anna Lia; Lusso, Elisabeta; Oates, Samantha; Nicholl, Matt; Cenko, S. Bradley. A Radio, Optical, UV, and X-Ray View of the Enigmatic Changing-look Active Galactic Nucleus 1ES 1927+654 from Its Pre- to Postflare States. The Astrophysical Journal. 14 March 2022, 931 (1): 5. Bibcode:2022ApJ...931....5L. arXiv:2203.07446 可免费查阅. doi:10.3847/1538-4357/ac63aa 可免费查阅. 
  15. ^ Perlman, E. S.; Stocke, J. T.; Schachter, J. F.; Elvis, M.; Ellingson, E.; Urry, C. M. The Einstein Slew Survey Sample of BL Lacertae Objects. Astrophysical Journal Supplement. 1996, 104: 251–268. Bibcode:1996ApJS..104..251P. doi:10.1086/192300. 
  16. ^ 16.0 16.1 Masterson, Megan; Kara, Erin; Panagiotou, Christos; Alston, William N.; Chakraborty, Joheen; Burdge, Kevin; Ricci, Claudio; Laha, Sibasish; Arcavi, Iair; Arcodia, Riccardo; Cenko, S. Bradley; Fabian, Andrew C.; A. García, Javier; Giustini, Margherita; Ingram, Adam; Kosec, Peter; Loewenstein, Michael; Meyer, Eileen T.; Miniutti, Giovanni; Pinto, Ciro; Remillard, Ronald A.; Sadaula, Dev R.; Shuvo, Onic I.; Trakhtenbrot, Benny; Wang, Jingyi. Millihertz oscillations near the innermost orbit of a supermassive black hole. Nature. 2025, 638 (8050): 370–375 [2025-02-06]. Bibcode:2025Natur.638..370M. PMID 39910305. arXiv:2501.01581 可免费查阅. doi:10.1038/s41586-024-08385-x. （原始内容存档于2025-02-17）. 
  17. ^ Scepi, Nicolas; Begelman, Mitchell C; Dexter, Jason. Magnetic flux inversion in a peculiar changing look AGN. Monthly Notices of the Royal Astronomical Society - Letters. 9 January 2021, 502 (1, February 2021): L50–L54. arXiv:2011.01954 可免费查阅. doi:10.1093/mnrasl/slab002 可免费查阅 –通过Oup.com. 
  18. ^ Malewar, Amit. Real-time formation of black hole jets observed for the first time. Tech Explorist. January 17, 2025 [6 February 2025]. 
检索自“https://zh.wikipedia.org/w/index.php?title=1ES_1927%2B654&oldid=86259751”