Zobrazeno 1 - 10
of 175
pro vyhledávání: '"King, Andrew R"'
Autor:
Zubovas, Kastytis, King, Andrew R.
Extremely massive black holes, with masses $M_{\rm BH} > 10^9 M_\odot$, have been observed at ever higher redshifts. These results create ever tighter constraints on the formation and growth mechanisms of early black holes. Here we show that even the
Externí odkaz:
http://arxiv.org/abs/2101.00209
Autor:
Mondal, Samaresh, Belczyński, Krzysztof, Wiktorowicz, Grzegorz, Lasota, Jean-Pierre, King, Andrew R.
We explore the different formation channels of merging double compact objects (DCOs: BH-BH/BH-NS/NS-NS) that went through a ultraluminous X-ray phase (ULX: X-ray sources with apparent luminosity exceeding $10^{39}$ erg s$^{-1}$). There are many evolu
Externí odkaz:
http://arxiv.org/abs/1909.04435
Autor:
Zubovas, Kastytis, King, Andrew R.
Active galactic nuclei (AGN) probably control the growth of their host galaxies via feedback in the form of wide-angle wind-driven outflows. These establish the observed correlations between supermassive black hole (SMBH) masses and host galaxy prope
Externí odkaz:
http://arxiv.org/abs/1908.02630
Autor:
Patruno, Alessandro, Jaodand, Amruta, Kuiper, Lucien, Bult, Peter, Hessels, Jason, Knigge, Christian, King, Andrew R., Wijnands, Rudy, van der Klis, Michiel
The accreting millisecond X-ray pulsar (AMXP) SAX J1808.4-3658, shows a peculiar orbital evolution that proceeds at a much faster pace than predicted by conservative binary evolution models. It is important to identify the underlying mechanism respon
Externí odkaz:
http://arxiv.org/abs/1611.06023
Publikováno v:
Astrophysical Journal Letters, 2015, 801, L4
The disk instability picture gives a plausible explanation for the behavior of soft X-ray transient systems if self-irradiation of the disk is included. We show that there is a simple relation between the peak luminosity (at the start of an outburst)
Externí odkaz:
http://arxiv.org/abs/1502.00103
Autor:
Zubovas, Kastytis, King, Andrew R.
We suggest a common physical origin connecting the fast, highly ionized winds (UFOs) seen in nearby AGN, and the slower and less ionized winds of BAL QSOs. The primary difference is the mass loss rate in the wind, which is ultimately determined by th
Externí odkaz:
http://arxiv.org/abs/1304.1691
Autor:
Zubovas, Kastytis, King, Andrew R.
Galaxies become red and dead when the central supermassive black hole (SMBH) becomes massive enough to drive an outflow beyond the virial radius of the halo. We show that this final SMBH mass is larger than the final SMBH mass in the bulge of a spira
Externí odkaz:
http://arxiv.org/abs/1208.1380
We argue that current observations of $M - \sigma$ relations for galaxies can be used to constrain theories of super-massive black holes (SMBH) feeding. In particular, assuming that SMBH mass is limited only by the feedback on the gas that feeds it,
Externí odkaz:
http://arxiv.org/abs/1203.3450
Autor:
Zubovas, Kastytis, King, Andrew R.
It is widely suspected that AGN activity ultimately sweeps galaxies clear of their gas. We work out the observable properties required to achieve this. Large-scale AGN-driven outflows should have kinetic luminosities $\sim \eta\le/2 \sim 0.05\le$ and
Externí odkaz:
http://arxiv.org/abs/1201.0866
Autor:
Bloom, Joshua S., Giannios, Dimitrios, Metzger, Brian D., Cenko, S. Bradley, Perley, Daniel A., Butler, Nathaniel R., Tanvir, Nial R., Levan, Andrew J., Brien, Paul T. O', Strubbe, Linda E., De Colle, Fabio, Ramirez-Ruiz, Enrico, Lee, William H., Nayakshin, Sergei, Quataert, Eliot, King, Andrew R., Cucchiara, Antonino, Guillochon, James, Bower, Geoffrey C., Fruchter, Andrew S., Morgan, Adam N., van der Horst, Alexander J.
While gas accretion onto some massive black holes (MBHs) at the centers of galaxies actively powers luminous emission, the vast majority of MBHs are considered dormant. Occasionally, a star passing too near a MBH is torn apart by gravitational forces
Externí odkaz:
http://arxiv.org/abs/1104.3257