Image of a black hole illuminated by a parabolic screen

Capa

Citar

Texto integral

Acesso aberto Acesso aberto
Acesso é fechado Acesso está concedido
Acesso é fechado Somente assinantes

Resumo

A model of an illuminating black hole surface (“parabolic screen”) is proposed. This allows to avoid in a natural way the appearance of edge effects related with photons moving along the screen plane. The temperature distribution along the radius corresponds to the corresponding distribution for a relativistic disk (Novikov-Thorne disk). It is shown that the structure of the formed black hole shadow essentially differs from the case when the source of photons is a distant screen, since in the considered model the photons, subjected to strong gravitational lensing of the black hole, are emitted by the “backward” side of screen, which would not be visible in the absence of the black hole. In the thin screen approximation, shadow images are constructed for the Schwarzschild black hole in the cases when the angle between the symmetry axis of the illuminating screen and the direction to the observer is equal to 5, 30, 30 and 80 angular degrees, similar images for the Kerr black hole are constructed for the cases of 60 and 80 angular degrees.

Palavras-chave

Texto integral

Acesso é fechado

Sobre autores

E. Mikheeva

Astrospace Center of P. N. Lebedev Physical Institute of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: helen@asc.rssi.ru
Rússia, Moscow

S. Repin

Astrospace Center of P. N. Lebedev Physical Institute of the Russian Academy of Sciences

Email: sergerepin1@gmail.com
Rússia, Moscow

V. Lukash

Astrospace Center of P. N. Lebedev Physical Institute of the Russian Academy of Sciences

Email: lukash@asc.rssi.ru
Rússia, Moscow

Bibliografia

  1. K. Akiyama, A. Alberdi, W. Alef, K. Asada, et al., Astrophys. J. Letters 875(1), id. L4 (2019).
  2. K. Akiyama, A. Alberdi, W. Alef, J. C. Algaba, et al., Astrophys. J. Letters 930(2), id. L₁2 (2022).
  3. Е. В. Михеева, С. В. Репин, В. Н. Лукаш, Астрон. журн. 97, 555 (2020).
  4. M. D. Johnson, A. Lupsasca, A. Strominger, G. N. Wong, et al., Science Advances 6(12), eaaz1310 (2020), arXiv:1907.04329 [astro-ph].
  5. А. Ф. Захаров, С. В. Репин, Астрон. журн. 76, 803 (1999).
  6. А. Ф. Захаров, Астрон. журн. 68, 58 (1991).
  7. A. F. Zakharov, Monthly Not. Roy. Astron. Soc. 269, 283 (1994).
  8. J. P. Luminet, Astron. and Astrophys. 75, 228 (1979).
  9. В. И. Докучаев, Н. О. Назарова, Успехи физ. наук 190, 627 (2020).
  10. В. И. Докучаев, Н. О. Назарова, ЖЭТФ 155, 677 (2019).
  11. I. D. Novikov and K. S. Thorne, Black holes (Les astres occlus), edited by C. DeWitt and B. DeWitt (N.Y.: Gordon and Breach, 1973), p. 343.
  12. G. H. George, J. Royal Astron. Soc. Canada 84, 28 (1990).
  13. A. E. Broderick and A. Loeb, Astrophys. J. 697, 1164 (2009).
  14. V. I. Dokuchaev and N. O. Nazarova, Universe 6, 154 (2020).
  15. V. I. Dokuchaev and N. O. Nazarova, General Relativ. and Gravit. 53, id. 83 (2021).

Arquivos suplementares

Arquivos suplementares
Ação
1. JATS XML
2. Fig. 1. Schematic of the radiating screen in the vicinity of the black hole. The black hole is located at the origin of coordinates, the dark gray zone corresponds to the region of space limited by the orbits of photons in the minimum stable orbit for the case of a Schwarzschild black hole.

Baixar (66KB)
3. Fig. 2. Shadow of a Schwarzschild black hole. The angle between the axis of symmetry of the screen and the direction to the observer is 5°.

Baixar (302KB)
4. Fig. 3. Shadow of a Schwarzschild black hole. The angle between the axis of symmetry of the screen and the direction to the observer is 30°.

Baixar (310KB)
5. Fig. 4. Shadow of a Schwarzschild black hole. The angle between the axis of symmetry of the screen and the direction to the observer is 60°.

Baixar (296KB)
6. Fig. 5. Shadow of a Schwarzschild black hole. The angle between the axis of symmetry of the screen and the direction to the observer is 80°.

Baixar (286KB)
7. Fig. 6. Shadow of the Kerr black hole. The angle between the axis of rotation of the black hole and the direction to the observer is 60°.

Baixar (295KB)
8. Fig. 7. Shadow of the Kerr black hole. The angle between the axis of rotation of the black hole and the direction to the observer is 80°.

Baixar (294KB)

Declaração de direitos autorais © The Russian Academy of Sciences, 2024

Este site utiliza cookies

Ao continuar usando nosso site, você concorda com o procedimento de cookies que mantêm o site funcionando normalmente.

Informação sobre cookies