The supermassive black hole
Suppressing star formation in quiescent galaxies with supermassive black hole winds
... a supermassive black hole 5–7 , an un- known mechanism must remove or heat subsequently accreted gas from stellar mass loss 8 or mergers that would otherwise cool to form stars 9, 10 ...a ...
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A Highly Magnetized Twin-Jet Base Pinpoints a Supermassive Black Hole
... symmetry in our new higher frequency and higher resolution image strongly suggests the true center of activity to be located inside the central feature, which then represents the unresolved emission of both jet cores and ...
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EHT Constraint on the Ultralight Scalar Hair of the M87 Supermassive Black Hole
... field black hole equilibrium state—a black hole with synchronised ...massive black holes, such as the one at the centre of the M87 supergiant elliptic galaxy, the hairy black ...
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Testing the relativistic Doppler boost hypothesis for supermassive black hole binary candidates
... Supermassive black hole binaries (SMBHBs) should be common in galactic nuclei as a result of frequent galaxy mergers. Recently, a large sample of sub-parsec SMBHB candidates was identified as bright ...
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Testing General Relativity with the Reflection Spectrum of the Supermassive Black Hole in 1H0707-495
... The supermassive black hole in the Narrow Line Seyfert 1 galaxy 1H0707-495 looks to be a quite promising source for testing the Kerr metric using x-ray reflection spectros- ...the black ...
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First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
... region, black holes are expected to reveal a dark shadow caused by gravitational light bending and photon capture at the event ...the supermassive black hole candidate in the center of the ...
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A population of short-period variable quasars from PTF as supermassive black hole binary candidates
... 5 Spitzer Science Center, California Institute of Technology, Pasadena, CA 91125, USA Accepted 2016 July 22. Received 2016 July 21; in original form 2016 April 5 A B S T R A C T Supermassive black ...
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Discovery of a Luminous Radio Transient 460 pc from the Central Supermassive Black Hole in Cygnus A
... Massive Black Hole Models Because Cygnus A-2 is clearly separate from the nucleus that powers the Cygnus A jets, it cannot be related to the primary supermassive black hole in this ...
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Luminosity and stellar mass functions of discs and spheroids in the SDSS and the supermassive black hole mass function
... a supermassive black hole (SMBH) at their centre whose mass is proportional to the lu- minosity of the spheroid or bulge (Kormendy & Richstone 1995; Magorrian et ...
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NuSTAR reveals the extreme properties of the super-Eddington accreting supermassive black hole in PG 1247+267
... ABSTRACT PG1247+267 is one of the most luminous known quasars at z ∼ 2 and is a strongly super-Eddington accreting supermassive black hole (SMBH) candidate. We obtained NuSTAR data of this intriguing ...
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The NANOGrav 11 yr Data Set: Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries
... Potential GW sources in the PTA band include supermassive black hole binaries ( SMBHBs; see Sesana et al. 2004; Sesana 2013; Burke-Spolaor et al. 2018 ) , primordial GWs ( Grishchuk 2005; Lasky et ...
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European Pulsar Timing Array limits on continuous gravitational waves from individual supermassive black hole binaries
... inspiralling supermassive black hole binaries (SMBHBs), formed following the frequent galaxy mergers occur- ring in the Universe (Begelman, Blandford & Rees ...
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Selection bias in dynamically measured supermassive black hole samples: its consequences and the quest for the most fundamental relation
... binary supermassive black hole population so as to shift the gravitational wave spectral energy distribution out of the observing window of pulsar timing ...
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Supermassive black holes : the local supermassive black hole mass function
... the black hole and since the black hole can only increase their mass with time, they believed that some inactive galaxies of the nearby galaxies should still host a a very massive black ...
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Modeling AGN outbursts from supermassive black hole binaries
... nuclear supermassive black holes (SMBHs) should form bound ...nuclear black hole activity, it is plausible that such binaries would lie in gas-rich environments and power active galactic ...
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Aspects of Supermassive Black Hole Growth in Nearby Active Galactic Nuclei
... Left : the narrow component of the emission lines orig- inates from ionized gas rotating (long-dashed arrow) and inflowing (short- dashed blue and red arrows) in the plane of the galaxy [r] ...
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An Accreting Supermassive Black Hole Irradiating Molecular Gas in NGC 2110
... ABSTRACT The impact of Active Galactic Nuclei (AGN) on star formation has implications for our understanding of the relationships between supermassive black holes and their galaxies, as well as for the ...
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Relativistic Radiative Hydrodynamics Calculation of Accretion Flow into Supermassive Black Hole
... of black holes in their natural setting. Candidate black holes are found in binary systems, with mass M ∼ 10 M ¯ , and in the nuclei of galaxies, with M ∼ 10 6 to 10 10 M ¯ ...about black hole ...
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Probing the inner regions of supermassive black hole accretion disks and jets
... episodic accretion events. This may be able to put constraints on the episodic nature of the AGN phenomenon in which galaxies periodically go through AGN states when large reservoirs of gas fall in towards the ...
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Testing the relativistic Doppler boost hypothesis for supermassive black hole binary candidates
... • For 68 SMBHB candidates identified as quasars with periodic variability, based on their optical/UV light curves and optical spectra, we calculated the UV spectral slopes that would be [r] ...
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