Results 81 to 90 of about 55,785 (258)
A Warped Accretion Disk and Wide‐Angle Outflow in the Inner Parsec of the Circinus Galaxy [PDF]
The Astrophysical Journal, 2003 To appear in The Astrophysical Journal (part 1), Volume 590, June 10, 2003.
Greenhill, Lincoln +9 more
openaire +4 more sources
Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events
Astronomische Nachrichten, Volume 347, Issue 5, June 2026.ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay +4 more
wiley +1 more source
GRB 191019A: A Short Gamma-Ray Burst in Disguise from the Disk of an Active Galactic Nucleus
The Astrophysical Journal Letters, 2023 Long and short gamma-ray bursts (GRBs), canonically separated at around 2 s duration, are associated with different progenitors: the collapse of a massive star and the merger of two compact objects, respectively. GRB 191019A was a long GRB ( T _90 ∼ 64 s)
Davide Lazzati +3 more
doaj +1 more source
Universe, 2021 Double-spiral galaxies are common in the Universe. It is known that the logarithmic double spiral is a Maximum Entropy geometry in hyperbolic (flat) spacetime that well represents an idealised spiral galaxy, with its central supermassive black hole (SMBH)
Michael C. Parker, Chris Jeynes
doaj +1 more source
Quantifying the Impact of Relativistic Precession on Tidal Disruption Event Light Curves
Astronomische Nachrichten, Volume 347, Issue 5, June 2026.ABSTRACT The tidal field of a black hole can turn a star into a gas stream whose orbit can precess, especially if the a black hole is rapidly spinning. In this work, we investigate the impact of precession on the light curves of tidal disruption events (TDE).
Diego Calderón +4 more
wiley +1 more source
Towards AMR Simulations of Galaxy Formation [PDF]
, 2010 Numerical simulations present a fundamental building block of our modern theoretical understanding of the Universe. As such the work in this thesis is primarily concerned with understanding fundamental differences that lie between the different ...
MITCHELL, NIGEL,LEWIS +1 more
core
Modified viscosity in accretion disks
, 2017 Aims. Black holes (BHs) surrounded by accretion disks are present in the Universe at different scales of masses, from microquasars up to the active galactic nuclei (AGNs).
Agnieszka Janiuk +3 more
core +1 more source
Accretion relics in the solar neighbourhood : Debris from ωCen's parent galaxy [PDF]
, 2004 We use numerical simulations to investigate the orbital characteristics of tidal debris from satellites whose orbits are dragged into the plane of galact ic disks by dynamical friction before disruption.
A. Meza +3 more
semanticscholar +1 more source
Formation of a Malin 1 analogue in IllustrisTNG by stimulated accretion [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2018 The galaxy Malin 1 contains the largest stellar disk known but the formation mechanism of this structure has been elusive. In this paper, we report a Malin 1 analogue in the 100 Mpc IllustrisTNG simulation and describe its formation history.
Qirong Zhu +15 more
semanticscholar +1 more source
Different Influence of Gas Accretion on the Evolution of Star-forming and Non-star-forming Galaxies
The Astrophysical JournalUsing integral field spectroscopic data from the Mapping Nearby Galaxies at Apache Point Observatory survey, we investigate the spatially resolved properties and empirical relations of a star-forming galaxy and a non-star-forming galaxy hosting ...
Min Bao, Wenlong Zhao, Qirong Yuan
doaj +1 more source