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A shared accretion instability for black holes and neutron stars

Vincentelli, Federico M. (author)
Villanova University,University of Southampton,Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
Neilsen, Joseph (author)
Villanova University
Tetarenko, Alexandra J. (author)
Texas Tech University,Texas Tech University at Lubbock
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Cavecchi, Y. (author)
Universitat Politecnica de Catalunya,Polytechnic University of Catalonia,Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico
Castro Segura, N. (author)
University of Southampton
Del Palacio, Santiago, 1990 (author)
Chalmers tekniska högskola,Chalmers University of Technology
van den Eijnden, J. (author)
University Of Oxford
Vasilopoulos, G. (author)
Yale University
Altamirano, D. (author)
University of Southampton
Armas Padilla, M. (author)
Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
Bailyn, C. D. (author)
Yale University
Belloni, Tomaso (author)
Istituto nazionale di astrofisica (INAF)
Buisson, D. J.K. (author)
University of Southampton
Cúneo, V. A. (author)
Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
Degenaar, N. (author)
Anton Pannekoek Institute for Astronomy
Knigge, C. (author)
University of Southampton
Long, K. S. (author)
Eureka Scientific,Space Telescope Science Institute (STScI)
Jiménez-Ibarra, F. (author)
Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
Milburn, J. (author)
California Institute of Technology (Caltech)
Muñoz Darias, T. (author)
Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
Özbey Arabacı, M. (author)
University of Southampton
Remillard, R. (author)
Massachusetts Institute of Technology (MIT)
Russell, T. (author)
Istituto nazionale di astrofisica (INAF)
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 (creator_code:org_t)
2023-03-01
2023
English.
In: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 615:7950, s. 45-49
Related links:
https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Accretion disks around compact objects are expected to enter an unstable phase at high luminosity1. One instability may occur when the radiation pressure generated by accretion modifies the disk viscosity, resulting in the cyclic depletion and refilling of the inner disk on short timescales2. Such a scenario, however, has only been quantitatively verified for a single stellar-mass black hole3-5. Although there are hints of these cycles in a few isolated cases6-10, their apparent absence in the variable emission of most bright accreting neutron stars and black holes has been a continuing puzzle11. Here we report the presence of the same multiwavelength instability around an accreting neutron star. Moreover, we show that the variability across the electromagnetic spectrum-from radio to X-ray-of both black holes and neutron stars at high accretion rates can be explained consistently if the accretion disks are unstable, producing relativistic ejections during transitions that deplete or refill the inner disk. Such a new association allows us to identify the main physical components responsible for the fast multiwavelength variability of highly accreting compact objects.

Subject headings

NATURVETENSKAP  -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
NATURVETENSKAP  -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)

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