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1ES 1927+654

維基百科，自由的百科全書
1ES 1927+654
塞弗特星系1ES 1927+654
觀測資料（J2000 曆元）
赤經19h 27m
赤緯+65° 4′ ″
距離2.7億光年
特徵
類型II型塞弗特星系
其他具有活躍星系核和特殊X射線瞬變現象
參見：星系、星系列表

1ES 1927+654是一個位於天龍座的2型塞弗特星系[1]，距離地球約2.7億光年，其中心有一個活躍星系核（AGN）[2][3][4][5]。該星系外觀相對普通，但其核心由超大質量黑洞供能，是其X射線閃光的來源。

該星系核的亮度和振盪行為不可預測，因而成為光學、射電、紫外和X射線波段特別觀測的研究對象。多篇分析其異常特徵的科學論文對吸積盤和黑洞環境的傳統理論提出了挑戰[6][7][8][9][10][11]。

「1ES 1927+654」是愛因斯坦快速巡天（Einstein Slew Survey）的一個星表編號，這項X波段巡天由愛因斯坦衛星實施，結果於1992年首次發布。

發現

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1ES 1927+654因其不可預測的行為而引起天文學家關注。其突變特性使其成為全球X射線、光學和射電觀測站多波段聯合觀測的目標[12][13][2][14]。

該天體最早在愛因斯坦快速巡天觀測中被編錄，根據其發射線特徵被歸類為塞弗特星系[15]。

2017年監測到其亮度劇烈增加，星系紫外波段亮度增強了約40倍，引發了後續對成因的研究[8]。2018年X射線和紫外望遠鏡的詳細觀測顯示，活躍星系核的吸積盤發生了部分或整體瓦解[14]。其准周期振盪（QPO）周期在兩年內從18分鐘縮短至7.1分鐘，展現出獨特的演變特徵[16]。未來計劃通過X射線和引力波觀測驗證可能的解釋[16] 。

2020年的研究表明，極端變光現象可能與黑洞周圍磁場失穩有關。這對黑洞吸積模型提出了挑戰，並啟發了有關活躍星系核爆發的新理論[17]。

2023-2024年間，甚長基線干涉測量觀測到了黑洞附近形成的等離子體噴流[18]。

圖像展

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參考資料

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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 可免費查閱, doi:10.1093/mnras/stad2877 可免費查閱 
  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 可免費查閱. 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 可免費查閱. doi:10.3847/1538-4357/aced92 可免費查閱. 
  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 可免費查閱. 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 可免費查閱. doi:10.1093/mnras/stt735 可免費查閱. 
  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 可免費查閱. doi:10.3847/1538-4357/ab39e4 可免費查閱. 
  9. ^ Evolution of various aspects of the X-ray spectrum of 1ES 1927+654 from... | Download Scientific Diagram. ResearchGate.net. [2025-02-27]. （原始內容存檔於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 可免費查閱. doi:10.3847/1538-4357/ac76c0 可免費查閱 –透過ResearchGate.net. 
  11. ^ Chu, Jennifer. X-ray flashes from a nearby supermassive black hole accelerate mysteriously. MIT News. 2025-01-13 [2025-01-15]. （原始內容存檔於2025-01-19） （英語）. 
  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 可免費查閱. doi:10.3847/1538-4365/abe94b 可免費查閱. 
  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 可免費查閱. doi:10.3847/1538-4357/ab39e4 可免費查閱. 
  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 可免費查閱. doi:10.3847/1538-4357/ac63aa 可免費查閱. 
  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 可免費查閱. doi:10.1038/s41586-024-08385-x. （原始內容存檔於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 可免費查閱. doi:10.1093/mnrasl/slab002 可免費查閱 –透過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]. 
取自「https://zh.wikipedia.org/w/index.php?title=1ES_1927%2B654&oldid=86259751」