Results 101 to 110 of about 1,399 (188)
Enhanced Star Formation and Black Hole Accretion Rates in Galaxy Mergers in IllustrisTNG50
The Astrophysical JournalMany theoretical and observational studies have suggested that galaxy mergers may trigger enhanced star formation or active galactic nucleus activity.
Aimee L. Schechter +8 more
doaj +1 more source
The visible environment of gas-accreting galaxies
, 1999 We studied the environment of a sample of galaxies in which the presence of polar rings or the presence of gas- and stars- counterrotation is observed. These galaxies are believed to have accreted this material, now in peculiar motion, from their environment.
Bettoni, D., Galletta, G., Prada, F.
openaire +2 more sources
FAST Reveals the Extended H i Halo and Accretion Signatures of NGC 2683
The Astrophysical JournalWe present the results of our recent H i observations conducted on the edge-on galaxy NGC 2683 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST).
Qian Jiao +7 more
doaj +1 more source
The Astrophysical JournalReconstructing the mass assembly history of the Milky Way relies on obtaining detailed measurements of the properties of many stars in the galaxy, especially in the stellar halo.
Danny Horta +4 more
doaj +1 more source
How Does Feedback Affect the Star Formation Histories of Galaxies?
The Astrophysical JournalStar formation in galaxies is regulated by the interplay of a range of processes that shape the multiphase gas in the interstellar and circumgalactic media.
Kartheik G. Iyer +22 more
doaj +1 more source
Direct Tests of Black Hole Accretion Rate Prescriptions. I. Bondi Accretion at Different Scales
The Astrophysical JournalWe present spatially resolved parsec-scale measurements of nuclear conditions (gas density and kinetic temperature) relevant for black hole accretion rate predictions in the Seyfert 2 galaxy, NGC 1068. We inject these parameters into the prescription for
James Agostino +11 more
doaj +1 more source
The Astrophysical JournalTo facilitate new studies of galaxy-merger-driven fueling of active galactic nuclei (AGNs), we present a catalog of 387 AGNs that we have identified in the final population of over 10,000 z < 0.15 galaxies observed by the Sloan Digital Sky Survey-IV ...
Julia M. Comerford +9 more
doaj +1 more source
Relativistic Jet Motion in the Radio-quiet LINER Galaxy KISSR 872
The Astrophysical JournalWe report superluminal jet motion with an apparent speed of β _app = 1.65 ± 0.57 in the radio-quiet (RQ) low-ionization nuclear emission-line region (LINER) galaxy KISSR 872.
Preeti Kharb +7 more
doaj +1 more source
Ensemble Variability Properties of Active Galactic Nuclei in the SDSS DR17
The Astrophysical JournalWe present the results from a study of ∼9600 broadline-selected active galactic nuclei (AGNs) with host galaxies detected from the Sloan Digital Sky Survey (SDSS) Data Release 17.
Krittapas Chanchaiworawit +1 more
doaj +1 more source
A Deep Chandra View of A2597: Bubbles, Shocks, Cold Fueling, and a Plasma Depletion Layer
The Astrophysical JournalTo examine how active galactic nucleus (AGN) feedback shapes the intracluster medium (ICM) and fuels black hole accretion in the cool-core galaxy cluster A2597, we present deep (∼600 ks) Chandra X-ray observations complemented by archival GMRT radio and ...
Osase Omoruyi +16 more
doaj +1 more source