Results 121 to 130 of about 132,127 (279)
Testing General Relativity with the Reflection Spectrum of the Supermassive Black Hole in 1H0707-495. [PDF]
Physical Review Letters, 2017 Recently, we have extended the x-ray reflection model relxill to test the spacetime metric in the strong gravitational field of astrophysical black holes.
Z. Cao +4 more
semanticscholar +1 more source
M87 Supermassive Black Hole Review
International Journal of Science and Research (IJSR), 2021 M87 is a giant elliptical galaxy in the Virgo cluster of galaxies. The radio source has a core which coincides with the nucleus of the galaxy and a jet of emission which is detected from radio to X-ray bands. A supermassive black hole is assumed to be at the centre of M87 which sends out relativistic particles in the form jets along its axis of ...
openaire +2 more sources
Evolution of black hole shadow in the presence of ultralight bosons
Physics Letters B, 2020 Kerr black holes coupled to quantized bosonic fields display a special version of the Hawking effect, governed by the superradiance condition. This leads to rapid growth of boson cloud through spontaneous creation, leading to slowing down of the black ...
Rittick Roy, Urjit A. Yajnik
doaj +1 more source
A highly magnetized twin-jet base pinpoints a supermassive black hole [PDF]
, 2016 Supermassive black holes (SMBH) are essential for the production of jets in radio-loud active galactic nuclei (AGN). Theoretical models based on (Blandford & Znajek 1977, MNRAS, 179, 433) extract the rotational energy from a Kerr black hole, which could ...
A. Baczko +20 more
semanticscholar +1 more source
On the location of the supermassive black hole in CTA 102 [PDF]
Astronomy & Astrophysics, 2015 Relativistic jets in active galactic nuclei represent one of the most powerful phenomena in the Universe. They form in the surroundings of the supermassive black holes as a by-product of accretion onto the central black hole in active galaxies. The flow in the jets propagates at velocities close to the speed of light.
J. Anton Zensus +6 more
openaire +6 more sources
European Physical Journal C: Particles and FieldsWe investigate the strong gravitational lensing effects of various supermassive compact objects for the static and spherically symmetric hairy black hole by gravitational decoupling.
G. Mustafa, S. K. Maurya
doaj +1 more source
Dynamics around supermassive black holes [PDF]
, 2011 Invited talk. To appear in "2007 STScI Spring Symposium: Black Holes", eds. M. Livio & A. M. Koekemoer.
A. Gualandris, D. Merritt
openaire +3 more sources
The Astrophysical Journal LettersQuasiperiodic oscillations (QPOs) are very common in black hole accretion systems that are seen from the modulations in luminosity. Many supermassive black hole sources (e.g., RE J1034+396, 1H 0707-495, MCG-6-30-15, 1ES 1927+654, Sgr A*) have been ...
Indu K. Dihingia, Yosuke Mizuno
doaj +1 more source
Selection bias in dynamically measured supermassive black hole samples: consequences for pulsar timing arrays [PDF]
, 2016 Supermassive black hole–host galaxy relations are key to the computation of the expected gravitational wave background (GWB) in the pulsar timing array (PTA) frequency band.
A. Sesana +3 more
semanticscholar +1 more source
Galaxies, 2019 In this review a summary is given on recent theoretical work, on understanding accreting supermassive black hole binaries in the gravitational wave (GW)-driven regime. A particular focus is given to theoretical predictions of properties of disks and jets
Roman Gold
doaj +1 more source