$ACCR accretion

Latest papers

1. Modelling the 6.7 GHz Methanol Flaring in G358.93-0.03 Using the Maxwell-Bloch Framework astro-ph.SR · 14 Oct · 1 hit

   …using the one-dimensional Maxwell-Bloch framework. The 2019 non-periodic flare, associated with an accretion burst, produced complex single-dish light curves characterized by sharp rises, multiple peaks,…

2. Constrain the Size of Broad Line Region in NGC 1068 Using Sub-millimeter Excess astro-ph.GA · 14 Oct · 1 hit

   Constraining the size of broad-line region (BLR) close to the accretion disk in active galactic nuclei (AGNs) is key to understand the central engine and evolution of AGN.…

3. Search for High-Energy Neutrinos from Infrared Flares astro-ph.HE · 14 Oct · 2 hits

   …has been observed from the gamma-ray blazar TXS 0506+056 and the Seyfert galaxy NGC 1068. This suggests accretion by supermassive black holes as one of the candidate mechanisms of the diffuse neutrino flux.…

4. Microcaustics: Fast GPU-Accelerated Dynamical Microlensing of Time-Dependent Extended Sources astro-ph.GA · 14 Oct · 1 hit

   Gravitational microlensing probes unresolved quasar accretion disc structure and compact objects in lens galaxies and is an important systematic in strong-lens…

5. Emission spectroscopy of KELT-2A b with Gemini-North/IGRINS-2: hints of a stellar C/O ratio and sub-stellar metallicity astro-ph.EP · 14 Oct · 2 hits

   …{this combination of a stellar C/O ratio with a sub-stellar metallicity is difficult to reconcile with gas accretion between the $\rm{H_2O}$ and CO snowlines, which predicts a super-stellar C/O. It instead points to…

6. Large-scale Environmental Dependence of AGN Activity Revealed by JWST Pa$\alpha$ Emitters astro-ph.GA · 14 Oct · 1 hit

   …ratio and a weak negative correlation with the central black hole mass, implying more efficient black hole accretion in dense environments. We construct Pa$\alpha$ luminosity functions (LFs) in AGN environments and…

7. The Contribution of Mergers and Accretion to Dark Matter Halo Assembly: An Excursion Set Theory Approach astro-ph.GA · 13 Oct · 7 hits

   We study the relative contributions of mergers and accretion to the assembly of dark matter haloes within the framework of Excursion Set Theory (EST). We extend…

8. Twisted Pseudodisk and Asymmetric Mass Accretion on the Circumstellar Disk II: Parameter Survey astro-ph.SR · 13 Oct · 5 hits

   …envelope) surrounding the circumstellar disk develops a highly distorted and complex morphology. Gas accretion from the envelope proceeds through discrete, channel-like flows, producing asymmetric streams…