Results 1 to 10 of about 352 (180)

Investigating the Impact of Metallicity on Star Formation in the Outer Galaxy. I. VLT/KMOS Survey of Young Stellar Objects in Canis Major

open access: yesThe Astrophysical Journal Supplement Series, 2023
The effects of metallicity on the evolution of protoplanetary disks may be studied in the outer Galaxy where the metallicity is lower than in the solar neighborhood.
Dominika Itrich   +11 more
doaj   +1 more source

Similar Signatures of Coplanar Gas Inflow and Disk Warps in Galactic Gas Kinematic Maps

open access: yesThe Astrophysical Journal, 2023
Hydrodynamic simulations suggest that galactic gas disks form when coplanar gas spirals into the inner regions of the disk. We recently presented a simple modified accretion disk model of viscous galactic disks in which star formation is fed by a radial ...
Enci Wang, Simon J. Lilly
doaj   +1 more source

Radiation Transport Two-temperature GRMHD Simulations of Warped Accretion Disks

open access: yesThe Astrophysical Journal Letters, 2023
In many black hole (BH) systems, the accretion disk is expected to be misaligned with respect to the BH spin axis. If the scale height of the disk is much smaller than the misalignment angle, the spin of the BH can tear the disk into multiple ...
M. T. P. Liska   +4 more
doaj   +1 more source

Hidden Imprints of Minor Merging in Early-Type Galaxies: Inner Polar Rings and Inclined Large-Scale Gaseous Disks In S0s

open access: yesGalaxies, 2015
I discuss my latest observational data and ideas about decoupled gaseous subsystems in nearby lenticular galaxies. As an extreme case of inclined gaseous disks, I demonstrate a sample of inner polar disks, derive their incidence, about 10% among the ...
Olga Sil’chenko
doaj   +1 more source

Gas Accretion Can Drive Turbulence in Galaxies

open access: yesThe Astrophysical Journal, 2023
The driving of turbulence in galaxies is deeply connected with the physics of feedback, star formation, outflows, accretion, and radial transport in disks.
John C. Forbes   +13 more
doaj   +1 more source

The Decoupling of Binaries from Their Circumbinary Disks

open access: yesThe Astrophysical Journal Letters, 2023
We have investigated, both analytically and numerically, accreting supermassive black hole binaries as they inspiral due to gravitational radiation to elucidate the decoupling of binaries from their disks and inform future multimessenger observations of ...
Alexander J. Dittmann   +2 more
doaj   +1 more source

Magnetized Accretion Disks with Outflows for Changing-look AGNs

open access: yesThe Astrophysical Journal, 2023
Changing-look active galactic nuclei (CL-AGNs) challenge the standard accretion theory, owing to their rapid variability. Recent numerical simulations have shown that, for the sub-Eddington accretion case, the disk is magnetic pressure–dominated ...
Wen-Biao Wu, Wei-Min Gu
doaj   +1 more source

Core-collapse Supernova Explosions in Active Galactic Nucleus Accretion Disks

open access: yesThe Astrophysical Journal, 2023
Astrophysical events that occur in active galactic nucleus (AGN) disks are believed to differ significantly from the ordinary in the interstellar medium.
Fu-Lin Li   +6 more
doaj   +1 more source

Preserving evidence integrity in full file system extractions: Assessing hash inconsistencies and potential solutions

open access: yesJournal of Forensic Sciences, EarlyView.
Abstract Smartphone manufacturers' enhanced privacy and security measures, such as File‐Based Encryption (FBE), have disrupted traditional data extraction techniques, necessitating the adoption of Full File System Extraction (FFS). FFS requires booting a smartphone, decrypting its UserData partition, and accessing files individually, a process that ...
Sanghyun Yoo, Yunji Park, Doowon Jeong
wiley   +1 more source

Dual-disk galaxies and thermal states of circumgalactic medium

open access: yesThe Open Journal of Astrophysics
Disk galaxies often have dual-disk structures composed of thin disks and thick disks. Recent observations reveal that such duality is ubiquitous across broad galaxy mass and cosmic time.
Masafumi Noguchi
doaj   +1 more source

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