Results 141 to 150 of about 8,827 (222)

SUPERMASSIVE BLACK HOLE AT THE GALACTIC CENTER

New Results and Actual Problems in Particle & Astroparticle Physics and Cosmology, 2014
We derive an analytical expression of a shadow size as a function of a charge in the Reissner - Nordstr?m (RN) metric. Using the derived expression we consider shadows for negative tidal charges and charges corresponding to naked singularities q=Q2/M2>1, where Q and M are black hole charge and mass, respectively.
openaire   +2 more sources

Formation of Supermassive Black Hole Seeds in the First Galaxies [PDF]

, 2019
Frontier observations of quasars at redshifts z > 6 suggest the existence of supermassive black holes of masses 1,000,000,000 solar masses when the Universe was less than a billion years old.
Becerra, Fernando
core  

The contribution of supermassive black holes in stripped nuclei to the supermassive black hole population of UCDs and galaxy clusters [PDF]

We use the hydrodynamic EAGLE simulation to predict the numbers and masses of supermassive black holes in remnant nuclei of disrupted galaxies (stripped nuclei) and compare these to confirmed measurements of black holes in observed ultra-compact dwarf ...
Mayes, Rebecca, Drinkwater, Michael, Pfeffer, Joel, Baumgardt, Holger   +3 more
core   +2 more sources

Charged and magnetized particle motion around a static black hole in the Starobinsky–Bel–Robinson gravity

European Physical Journal C: Particles and Fields
In this work we focus on the effects of Starobinsky–Bel–Robinson (SBR) gravity parameter and external magnetic field on the motion of charged test particles and magnetic dipoles moving around a black hole in the selected gravity theory.
Akbar Davlataliev, Bakhtiyor Narzilloev, Ibrar Hussain, Ahmadjon Abdujabbarov, Bobomurat Ahmedov   +4 more
doaj   +1 more source

Follow the Mass—A Concordance Picture of Tidal Disruption Events

The Astrophysical Journal
Three recent global simulations of tidal disruption events (TDEs) have produced, using different numerical techniques and parameters, very similar pictures of their dynamics.
Julian Krolik, Tsvi Piran, Taeho Ryu
doaj   +1 more source

High-speed molecular cloudlets around the Galactic center's supermassive black hole. [PDF]

Astron Astrophys, 2018
Goicoechea JR, Pety J, Chapillon E, Cernicharo J, Gerin M, Herrera C, Requena-Torres MA, Santa-Maria MG.   +7 more
europepmc   +1 more source

Constraints on tidal charge of the supermassive black hole at the Galactic Center with trajectories of bright stars. [PDF]

Eur Phys J C Part Fields, 2018
Zakharov AF.
europepmc   +1 more source

Optical discovery of a relativistic jet from the tidal disruption of a star by a supermassive black hole

, 2022
Andreoni I, Coughlin M, Perley D, Yao Y, Lu W, Cenko S, Kumar H, Anand S, Ho A, Kasliwal M, Postigo AdU, Sagués-Carracedo A, Schulze S, Kulkarni S, Sollerman J, Tanvir N, Rest A, Ahumada T, Anupama G, Auchettl K, Barway S, Bellm E, Bhalerao V, Bloom J, Bremer M, Bulla M, Burns E, Campana S, Chandra P, Charalampopoulos P, Cooke J, D'Elia V, Das K, Dobie D, Fernández JA, Freeburn J, Fremling C, Gezari S, Graham M, Hammerstein E, Izzo L, Kann DA, Kaplan D, Karambelkar V, Kool E, Krips M, Laher R, Leloudas G, Levan A, Lundquist M, Mahabal A, Medford M, Miller M, Moller A, Mooley K, Nayana A, Nir G, Pang P, Paraskeva E, Perley R, Petitpas G, Pursiainen M, Ravi V, Ridden-Harper R, Riddle R, Rigault M, Rodriguez A, Rusholme B, Sharma Y, Smith I, Somalwar J, Thöne C, Valdes F, Roestel Jv, Vergani S, Wang Q, Zhang J.   +76 more
europepmc   +1 more source

The habitability of the Milky Way during the active phase of its central supermassive black hole. [PDF]

Sci Rep, 2017
Balbi A, Tombesi F.
europepmc   +1 more source

Detection of Gravitational Wave Emission by Supermassive Black Hole Binaries Through Tidal Disruption Flares. [PDF]

Sci Rep, 2016
Hayasaki K, Loeb A.
europepmc   +1 more source