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Generation of X-ray radiation in the inner regions of accretion disks around black holes, neutron stars, and white dwarfs

† , ‡ , § 
Astro Space Centre, Lebedev Physical Institute, Russian Academy of Sciences, ul. Profsoyuznaya 84/32, Moscow, 117997, Russian Federation

The most important temporal and spectral characteristics of X-ray radiation arising near black holes, neutron stars, and white dwarfs in the presence of matter accreting from the disk that surrounds the compact object are reviewed. It is shown how these characteristics are related to the physical parameters of these systems. A key characteristic of X-ray radiation is photon index Γ, defined as the slope of the emission spectrum in the energy range of 0.5—500 keV. If the compact object of a binary is a black hole, the X-ray radiation features saturation of the photon index (with increasing accretion rate), its value is ranging from 2 to 3. A correlation between Γ and the quasi-periodic oscillation frequency, νQPO, is revealed in these systems, which can be employed to independently determine the black hole mass using scaling method. The developed model of radiation transfer is now the basis of a scaling method which provides an independent estimate of mass also in the case of a supermassive black hole. The generated X-ray spectrum can be presented in a wide energy range as a combination of thermal, Comptonized, and Gaussian components that describe the emission lines. A model of radiative transfer in the vicinity of black holes and neutron stars can also explain the properties of the X-ray emission when the compact object is a white dwarf. The example of four dwarf novae, U Gem, SS Cyg, VW Hyi, and SS Aur, is used to show that the continuum of the X-ray spectrum of nonmagnetic cataclysmic variables can be described as a result of the Comptonization of soft photons on hot electrons of the accretion cloud that surrounds the white dwarf.

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Fulltext is also available at DOI: 10.3367/UFNe.2022.11.039272
Keywords: accretion, accretion disk, nonthermal radiation mechanism
PACS: 97.80.Jp
DOI: 10.3367/UFNe.2022.11.039272
URL: https://ufn.ru/en/articles/2023/9/b/
001112661900002
2-s2.0-85182871146
2023PhyU...66..885T
Citation: Titarchuk L G, Mikheeva E V, Lukash V N "Generation of X-ray radiation in the inner regions of accretion disks around black holes, neutron stars, and white dwarfs" Phys. Usp. 66 885–913 (2023)
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Received: 26th, April 2022, revised: 6th, October 2022, 10th, November 2022

Оригинал: Титарчук Л Г, Михеева Е В, Лукаш В Н «Формирование рентгеновского излучения во внутренних областях аккреционных дисков вокруг чёрных дыр, нейтронных звёзд и белых карликов» УФН 193 940–970 (2023); DOI: 10.3367/UFNr.2022.11.039272

References (90) ↓ Similar articles (20)

  1. Titarchuk L, Lapidus I, Muslimov A Astrophys. J. 499 315 (1998)
  2. Patterson J, Raymond J C Astrophys. J. 292 550 (1985)
  3. Patterson J, Raymond J C Astrophys. J. 292 535 (1985)
  4. Williams G A, King A R, Brooker J R E Mon. Not. R. Astron. Soc. 226 725 (1987)
  5. Mukai K Publ. Astron. Soc. Pac. 129 062001 (2017)
  6. Titarchuk L Astrophys. J. 434 570 (1994)
  7. Hua X-M, Titarchuk L Astrophys. J. 449 188 (1995)
  8. Titarchuk L, Lyubarskij Y Astrophys. J. 450 876 (1995)
  9. Farinelli R et al Astrophys. J. 680 602 (2008)
  10. Montanari E, Titarchuk L, Frontera F Astrophys. J. 692 1597 (2009)
  11. Sunyaev R A, Titarchuk L G Astron. Astrophys. 86 121 (1980)
  12. Ivanov P B et al Phys. Usp. 62 423 (2019); Ivanov P B et al Usp. Fiz. Nauk 189 449 (2019)
  13. Shaposhnikov N, Titarchuk L Astrophys. J. 699 453 (2009)
  14. Titarchuk L et al Astron. Astrophys. 633 A73 (2020)
  15. Farinelli R, Titarchuk L Astron. Astrophys. 525 102 (2011)
  16. Seifina E, Titarchuk L Astrophys. J. 738 128 (2011)
  17. Maiolino T et al Astrophys. J. 911 80 (2021)
  18. Titarchuk L, Seifina E, Shrader C Astrophys. J. 789 98 (2014)
  19. Belloni T AIP Conf. Proc. 797 197 (2005)
  20. Remillard R A, McClintock J E Annu. Rev. Astron. Astrophys. 44 49 (2006)
  21. Klein-Wolt M, van der Klis M Astrophys. J. 675 1407 (2008)
  22. Shaposhnikov N, Titarchuk L Astrophys. J. 643 1098 (2006)
  23. Titarchuk L, Fiorito R Astrophys. J. 612 988 (2004)
  24. Shaposhnikov N, Titarchuk L Astrophys. J. 663 445 (2007)
  25. Miller-Jones J C A et al Science 371 1046 (2021)
  26. Dewangan G C, Titarchuk L, Griffiths R E Astrophys. J. 637 L21 (2006)
  27. Dewangan G C, Griffiths R E, Rao A R Astrophys. J. 641 L125 (2006)
  28. Strohmayer T E et al Astrophys. J. 660 580 (2007)
  29. Revnivtsev M, Gilfanov M, Churazov E Astron. Astrophys. 363 1013 (2000)
  30. Titarchuk L, Mastichiadis A, Kylafis N D Astrophys. J. 487 834 (1997)
  31. Dickey J M, Lockman F J Annu. Rev. Astron. Astrophys. 28 215 (1990)
  32. Laurent P, Titarchuk L Astrophys. J. 511 289 (1999)
  33. Shakura N I, Sunyaev R A Astron. Astrophys. 24 337 (1973)
  34. Titarchuk L, Zannias T Astrophys. J. 493 863 (1998)
  35. Laurent P, Titarchuk L Astrophys. J. 727 34 (2011)
  36. Greene J, Bailyn C D, Orosz J A Astrophys. J. 554 1290 (2001)
  37. Hjellming R M, Rupen M P Nature 375 464 (1995)
  38. Muños-Darias T, Casares J, Martínes-Pais I G Mon. Not. R. Astron. Soc. 385 2205 (2008)
  39. Hynes R I et al Astrophys. J. 609 317 (2004)
  40. Orosz J A A Massive Star Odyssey: from Main Sequence to Supernova. Proc. of IAU Symp. No. 212, 24-28 June 2001, Spain (Eds K van der Hucht, A Herrero, C Esteban) (San Francisco: Astron. Soc. of the Pacific, 2003) p. 365
  41. Park S Q et al Astrophys. J. 610 378 (2004)
  42. Orosz J A et al Astrophys. J. 568 845 (2002)
  43. Sánchez-Fernández C et al Astron. Astrophys. 348 L9 (1999)
  44. Sobczak G J et al Astrophys. J. 517 L121 (1999)
  45. Orosz J A et al Astrophys. J. 616 376 (2004)
  46. Homan J et al Mon. Not. R. Astron. Soc. 366 235 (2006)
  47. McClintock J E et al Astrophys. J. 698 1398 (2009)
  48. Filippenko A V, Chornock R IAU Circ. 7644 2 (2001)
  49. Zurita C et al Mon. Not. R. Astron. Soc. 334 999 (2002)
  50. Herrero A et al Astron. Astrophys. 297 556 (1995)
  51. Ninkov Z, Walker G A H, Yang S Astrophys. J. 321 425 (1987)
  52. Titarchuk L et al Astrophys. J. 560 L55 (2001)
  53. Titarchuk L, Shaposhnikov N Astrophys. J. 678 1230 (2008)
  54. Laurent P, Titarchuk L Astrophys. J. 656 1056 (2007)
  55. Rybicki G B, Lightman A P Radiative Processes In Astrophysics (New York: Wiley, 1979) p. 46
  56. Titarchuk L, Seifina E Astron. Astrophys. 595 A101 (2016)
  57. Titarchuk L, Seifina E Astron. Astrophys. 585 A94 (2016)
  58. Seifina E, Chekhtman A, Titarchuk L Astron. Astrophys. 613 A48 (2018)
  59. Seifina E, Titarchuk L, Ugolkova L Astron. Astrophys. 619 A21 (2018)
  60. Event Horizon Telescope Collab. Astrophys. J. Lett. 930 12E (2022)
  61. Titarchuk L, Seifina E Mon. Not. R. Astron. Soc. 501 5659 (2021)
  62. Rhoades C E (Jr.), Ruffini R Phys. Rev. Lett. 32 324 (1974)
  63. Seifina E, Titarchuk L, Shaposhnikov N Astrophys. J. 821 23 (2016)
  64. Seifina E et al Astrophys. J. 808 142 (2015)
  65. Seifina E, Titarchuk L, Frontera F Astrophys. J. 766 63 (2013)
  66. Titarchuk L, Seifina E, Frontera F Astrophys. J. 767 160 (2013)
  67. Seifina E, Titarchuk L Astrophys. J. 747 99 (2012)
  68. Di Salvo T et al Astrophys. J. 542 1034 (2000)
  69. Piraino S, Santangelo A, Kaaret P Astron. Astrophys. 360 L35 (2000)
  70. D’Ai A et al Astron. Astrophys. 448 817 (2006)
  71. Ng C et al Astron. Astrophys. 522 A96 (2010)
  72. Egron E et al Astron. Astrophys. 530 A99 (2011)
  73. Di Salvo T et al Astrophys. J. Lett. 649 L91 (2006)
  74. Titarchuk L, Shaposhnikov N Astrophys. J. 724 1147 (2010)
  75. Di Salvo T et al Astrophys. J. 546 1107 (2001)
  76. Zel’dovich Ya B, Shakura N I Sov. Astron. 13 175 (1969); Zel’dovich Ya B, Shakura N I Astron. Zh. 46 225 (1969)
  77. Bisnovatyi-Kogan G S et al Sov. Astron. 24 716 (1980); Bisnovatyi-Kogan G S et al Astron. Zh. 57 1242 (1980)
  78. Titarchuk L, Seifina E Astrophys. J. 706 1463 (2009)
  79. Seifina E, Titarchuk L Astrophys. J. 722 586 (2010)
  80. Soria R et al Mon. Not. R. Astron. Soc. 410 1886 (2011)
  81. Maiolino T et al Astrophys. J. 900 153 (2020)
  82. Sunyaev R A, Titarchuk L G Astron. Astrophys. 143 374 (1985)
  83. Mukai K et al Astrophys. J. Lett. 586 L77 (2003)
  84. Pandel D, Córdova F A, Howell S B Mon. Not. R. Astron. Soc. 346 1231 (2003)
  85. Warner B Cataclysmic Variable Stars (Cambridge Astrophysics Series) Vol. 28 (Cambridge: Cambridge Univ. Press, 1995)
  86. Mauche C W, Raymond J C Astrophys. J. 541 924 (2000)
  87. Lewin W, van der Klis M (Eds) Compact Stellar X-ray Sources (Cambridge Astrophysics Ser.) Vol. 39 (Cambridge: Cambridge Univ. Press, 2006)
  88. D’Amico F et al Astrophys. J. 547 L147 (2001)
  89. D’Aí A et al Astrophys. J. 667 411 (2007)
  90. Maiolino T, D’Amico F, Braga J Astrophys. J. 551 L2 (2013)
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