Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Chris Nixon"'
Autor:
Jussi Harmanen, Łukasz Wyrzykowski, Paul C. Hewett, J. E. Pringle, Peter G. Jonker, Thomas Wevers, Chris Nixon, Z. Kostrzewa-Rutkowska, Giacomo Cannizzaro, Francesca Onori, Seppo Mattila, Erkki Kankare, Morgan Fraser, Barry McKernan, K. E. S. Ford
Publikováno v:
BASE-Bielefeld Academic Search Engine
Monthly Notices of the Royal Astronomical Society, 493, 1, pp. 477-495
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 493(1), 477-495
Monthly Notices of the Royal Astronomical Society, 493, 477-495
Monthly Notices of the Royal Astronomical Society, 493, 1, pp. 477-495
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 493(1), 477-495
Monthly Notices of the Royal Astronomical Society, 493, 477-495
We present the results of a multi-wavelength follow up campaign for the luminous nuclear transient Gaia16aax, which was first identified in January 2016. The transient is spatially consistent with the nucleus of an active galaxy at z=0.25, hosting a
Publikováno v:
New Astronomy. 70:7-11
We use well-established observational evidence to draw conclusions about the fundamental nature of the viscosity in accretion discs. To do this, we first summarise the observational evidence for the value of the dimensionless accretion disc viscosity
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 481(2), 1832-1838. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 481(2), 1832-1838
Monthly Notices of the Royal Astronomical Society, 481(2), 1832-1838
Blueshifted absorption lines in the X-ray spectra of AGN show that ultra-fast outflows with typical velocities $v \sim 0.1c$ are a common feature of these luminous objects. Such powerful AGN winds offer an explanation of the observed M-$\sigma$ relat
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 480(4), 4732-4737. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 480(4), 4732-4737
Monthly Notices of the Royal Astronomical Society, 480(4), 4732-4737
A circumbinary disc around a pair of merging stellar-mass black holes may be shocked and heated during the recoil of the merged hole, causing a near-simultaneous electromagnetic counterpart to the gravitational wave event. The shocks occur around the
We present long-duration numerical simulations of the tidal disruption of stars modelled with accurate stellar structures and spanning a range of pericentre distances, corresponding to cases where the stars are partially and completely disrupted. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c207db519dc830dd4fedf5cca887a6e
Synchrotron-emitting, nonthermal filaments (NTFs) have been observed near the Galactic center for nearly four decades, yet their physical origin remains unclear. Here we investigate the possibility that NTFs are produced by the destruction of molecul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47d6d7aa9f3e2d3376245d0a0c4f99dc
http://arxiv.org/abs/2010.13790
http://arxiv.org/abs/2010.13790
Autor:
Chris Nixon, J. E. Pringle
In order to provide an explanation for the unexpected radial brightness distribution of the steady accretion discs seen in nova-like variables, Nixon & Pringle (2019) proposed that the accretion energy is redistributed outwards by means of strong, ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d4be42e05884e9826eb40d89c0fc5e9
http://arxiv.org/abs/2003.01726
http://arxiv.org/abs/2003.01726
Autor:
Chris Nixon, S. Doğan
Many accretion discs are thought to be warped. Recent hydrodynamical simulations show that (i) discs can break into distinct planes when the amplitude of an imposed warp is sufficiently high and the viscosity sufficiently low, and that (ii) discs can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edc9f704c315a340b9c05f81a69d53b2
https://hdl.handle.net/11454/62303
https://hdl.handle.net/11454/62303
Autor:
J. E. Pringle, Chris Nixon
Be stars are rapidly rotating B stars with Balmer emission lines that indicate the presence of a Keplerian, rotationally supported, circumstellar gas disc. Current disc models, referred to as "decretion discs", make use of the zero torque inner bound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57a9ca3c15f80daa69986eaf19ef8686
Short gamma-ray bursts are thought to result from the mergers of two neutron stars or a neutron star and stellar mass black hole. The final stages of the merger are generally accompanied by the production of one or more tidal "tails" of ejecta, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49f38be8b2fe8fa5ba5c452ca9719a18
https://doi.org/10.48550/arxiv.2006.03174
https://doi.org/10.48550/arxiv.2006.03174