Setembro 2022 vol. 8 num. 1 - As Astrocientistas - I Encontro Brasileiro de Meninas e Mulheres da Astrofísica, Gravitação e Cosmologia

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Análogos gravitacionais, absorção e estados ligados

Gravitational analogs, absorption and bound states

Benone, Carolina ;

Artigo completo:

Analogias nos ajudam a entender sistemas a partir de modelos já compreendidos. No caso da relatividade geral, os modelos análogos surgiram como forma de trazer para o laboratório objetos astrofísicos, como buracos negros. Neste trabalho revisamos alguns modelos análogos à relatividade geral envolvendo fluidos e discutimos certos fenômenos que ocorrem na vizinhança de buracos negros a partir destes.

Artigo completo:

Analogies help us understand systems from already understood models. In the case of general relativity, analog models emerged as a way of bringing astrophysical objects such as black holes into the laboratory. In this work we review some models analogous to general relativity involving fluids and we discuss certain phenomena that occur in the vicinity of black holes from these.

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Palavras-chave: Modelos análogos, Buraco acústico girante, Absorção, Estados ligados,

Palavras-chave: Analog models, Rotating acoustic hole, Absorption, Bound states,

DOI: 10.5151/astrocientistas2021-5

Referências bibliográficas
  • [1] F. W. Dyson, A. S. Eddington, and C. Davidson. A Determination of the Deflection of Light by the Sun’s Gravitational Field, from Observations Made at the Total Eclipse of May 29, 1919. Phil. Trans. Roy. Soc. Lond. A, 220:291–333, 1920.
  • [2] B. P. Abbott et al. Observation of Gravitational Waves from a Binary Black Hole Merger. Phys. Rev. Lett., 116(6):061102, 2016.
  • [3] R. Abbott et al. GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run. 11 2021.
  • [4] S. W. Hawking. Black hole explosions. Nature, 248:30–31, 197
  • [5] Bernard J. Carr and S. W. Hawking. Black holes in the early Universe. Mon. Not. Roy. Astron. Soc., 168:399–415, 1974.
  • [6] W. G. Unruh. Experimental black hole evaporation. Phys. Rev. Lett., 46:1351–1353, 1981.
  • [7] Soumen Basak and Parthasarathi Majumdar. ‘Superresonance’ from a rotating acoustic black hole. Class. Quant. Grav., 20:3907–3914, 2003.
  • [8] Sam R. Dolan, Ednilton S. Oliveira, and Luis C. B. Crispino. Scattering of sound waves by a canonical acoustic hole. Phys. Rev. D, 79:064014, 2009.
  • [9] Sam R. Dolan and Ednilton S. Oliveira. Scattering by a draining bathtub vortex. Phys. Rev. D, 87(12):124038, 2013.
  • [10] Carolina L. Benone, Luis C. B. Crispino, Carlos Herdeiro, and Eugen Radu. Acoustic clouds: standing sound waves around a black hole analogue. Phys. Rev. D, 91(10):104038, 2015.
  • [11] Carolina L. Benone, Luís C. B. Crispino, Carlos A. R. Herdeiro, and Eugen Radu. Stationary bound states of massless scalar fields around black holes and black hole analogues. Int. J. Mod. Phys. D, 24(09):1542018, 2015.
  • [12] Carlos Barcelo, Stefano Liberati, and Matt Visser. Analog models for FRW cosmologies. Int. J. Mod. Phys. D, 12:1641– 1650, 2003.
  • [13] S. Eckel, A. Kumar, T. Jacobson, I. B. Spielman, and G. K. Campbell. A rapidly expanding Bose-Einstein condensate: an expanding universe in the lab. Phys. Rev. X, 8(2):021021, 2018.
  • [14] Matt Visser. Acoustic black holes: Horizons, ergospheres, and Hawking radiation. Class. Quant. Grav., 15:1767–1791, 1998.
  • [15] Ralf Schutzhold and William G. Unruh. Gravity wave analogs of black holes. Phys. Rev. D, 66:044019, 2002.
  • [16] Ednilton S. Oliveira, Sam R. Dolan, and Luis C. B. Crispino. Absorption of planar waves in a draining bathtub. Phys. Rev. D, 81:124013, 2010.
  • [17] Leandro A. Oliveira, Carolina L. Benone, Amanda L. Almeida, and Luís C. B. Crispino. Analytical investigation of wave absorption by a rotating black hole analogue. Int. J. Mod. Phys. D, 29(11):2041018, 2020.
  • [18] H. S. Vieira and V. B. Bezerra. Acoustic black holes: massless scalar field analytic solutions and analogue Hawking radiation. Gen. Rel. Grav., 48(7):88, 2016. [Erratum: Gen.Rel.Grav. 51, 51 (2019)].
  • [19] Theo Torres, Sam Patrick, Antonin Coutant, Mauricio Richartz, Edmund W. Tedford, and Silke Weinfurtner. Observation of superradiance in a vortex flow. Nature Phys., 13:833–836, 2017.
  • [20] Vitor Cardoso, Antonin Coutant, Mauricio Richartz, and Silke Weinfurtner. Detecting Rotational Superradiance in Fluid Laboratories. Phys. Rev. Lett., 117(27):271101, 2016.
  • [21] Carolina L. Benone, Luís Crispino, C. B., Carlos A. R. Herdeiro, and Maurício Richartz. Synchronized stationary clouds in a static fluid. Phys. Lett. B, 786:442–447, 2018.
Como citar:

Benone, Carolina; "Análogos gravitacionais, absorção e estados ligados", p. 37-43 . In: Anais do I Encontro Brasileiro de Meninas e Mulheres da Astrofísica, Gravitação e Cosmologia - As Astrocientistas. São Paulo: Blucher, 2022.
ISSN 2358-2359, DOI 10.5151/astrocientistas2021-5

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