Results 81 to 90 of about 97,661 (176)

Spherical Accretion in the Schwarzschild Spacetime in the Newtonian Analogous Construct

The Astrophysical Journal
The velocity-dependent Newtonian analogous potentials (NAPs) corresponding to general relativistic (GR) spacetimes accurately capture most of the relativistic features, including all classical tests of GR, effectively representing spacetime geometries in
Shubhrangshu Ghosh, Souvik Ghose, Kalyanbrata Pal, Arunabha Bhadra, Tapas K. Das   +4 more
doaj   +1 more source

Neutron stars harboring a primordial black hole: Maximum survival time. [PDF]

Phys Rev D, 2021
Baumgarte TW, Shapiro SL.
europepmc   +1 more source

A Streamer Driving Misalignment in the Circumtriple Disk of GW Ori

The Astronomical Journal
GW Ori is a triple stellar system with a disk featuring three misaligned dust rings. We present Atacama Large Millimeter/submillimeter Array molecular line data of CO isotopologues, revealing a streamer feeding the disk in ^12 CO and ^13 CO.
Maria Galloway-Sprietsma, Jaehan Bae, Toni Phillips, Jane Huang, Myriam Benisty, Matthew Porter, Christian Ginski, Andrew Winter   +7 more
doaj   +1 more source

The Efficiency of Mass Accretion and Disc Structure from the Stellar Wind Mass Transfer in Binary Systems

Universe
There have been many research works involving mass transfer in stellar binaries, all of which are limited to certain systems with specific binary parameters.
Bushra Ata Ali, Hastyar Omar Mohammed, Peshwaz Abdulkareem Abdoul   +2 more
doaj   +1 more source

Mass Transfer in Mira-Type Binaries

Open Astronomy, 2012
Detached, symbiotic binaries are generally assumed to interact via Bondi-Hoyle-Littleton (BHL) wind accretion. However, the accretion rates and outflow geometries that result from this mass-transfer mechanism cannot adequately explain the observations of
Mohamed S., Podsiadlowski Ph.
doaj   +1 more source

Accretion onto a small black hole at the center of a neutron star. [PDF]

Phys Rev D, 2021
Richards CB, Baumgarte TW, Shapiro SL.
europepmc   +1 more source

Jets with a Twist: The Emergence of FR0 Jets in a 3D GRMHD Simulation of Zero-angular-momentum Black Hole Accretion

The Astrophysical Journal
Spinning supermassive black holes (BHs) in active galactic nuclei magnetically launch relativistic collimated outflows, or jets. Without angular momentum supply, such jets are thought to perish within 3 orders of magnitude in distance from the BH, well ...
Aretaios Lalakos, Alexander Tchekhovskoy, Omer Bromberg, Ore Gottlieb, Jonatan Jacquemin-Ide, Matthew Liska, Haocheng Zhang   +6 more
doaj   +1 more source

Silicon isotope constraints on terrestrial planet accretion. [PDF]

Nature, 2023
Onyett IJ, Schiller M, Makhatadze GV, Deng Z, Johansen A, Bizzarro M.   +5 more
europepmc   +1 more source

On Disk Formation around Isolated Black Holes via Stream Accretion

The Astrophysical Journal
We investigate accretion onto an isolated black hole from uniform winds. If the winds are directed toward the black hole, then the accretion process can be well described by the classical Bondi–Hoyle–Lyttleton or BHL accretion.
Priyesh Kumar Tripathi, Indranil Chattopadhyay, Raj Kishor Joshi   +2 more
doaj   +1 more source

MESA-QUEST: Tracing the Formation of Direct Collapse Black Hole Seeds via Quasi-stars

The Astrophysical Journal
The origin of the first supermassive black holes (SMBHs) observed at redshifts z ≥ 9 remains one of the most challenging open questions in astrophysics.
Andrew D. Santarelli, Claire B. Campbell, Ebraheem Farag, Earl P. Bellinger, Priyamvada Natarajan, Matthew E. Caplan   +5 more
doaj   +1 more source