Results 31 to 40 of about 46,211 (288)
The different growth pathways of Brightest Cluster Galaxies and the Intra-Cluster Light
, 2018 We study the growth pathways of Brightest Central Galaxies (BCGs) and Intra-Cluster Light (ICL) by means of a semi-analytic model. We assume that the ICL forms by stellar stripping of satellite galaxies and violent processes during mergers, and implement
Contini, E., Kang, X., Yi, S. K.
core +1 more source
The Astrophysical Journal Letters, 2023 Minor mergers are thought to drive the structural evolution of massive quiescent galaxies; however, existing Hubble Space Telescope (HST) imaging is primarily sensitive to stellar mass ratios ≳1:10.
Katherine A. Suess +19 more
doaj +1 more source
Galactic r-process enrichment by neutron star mergers in cosmological simulations of a Milky Way-mass galaxy [PDF]
, 2014 We quantify the stellar abundances of neutron-rich r-process nuclei in cosmological zoom-in simulations of a Milky Way-mass galaxy from the Feedback In Realistic Environments project. The galaxy is enriched with r-process elements by binary neutron star (
Faucher-Giguere, Claude-Andre +4 more
core +5 more sources
Demographics of Hierarchical Black Hole Mergers in Dense Star Clusters
The Astrophysical Journal, 2023 With about one hundred mergers of binary black holes (BBHs) detected via gravitational waves by the LIGO-Virgo-KAGRA (LVK) Collaboration, our understanding of the darkest objects in the universe has taken unparalleled steps forward.
Giacomo Fragione, Frederic A. Rasio
doaj +1 more source
Formation of Kinematic Subsystems in Stellar Spiral-Spiral Mergers [PDF]
The Astrophysical Journal, 1998 [EN]We show that kinematically peculiar cores may be generated in stellar spiral-spiral mergers. Kinematic segregation appears as the central bulges transport orbital angular momentum inward to the center of the remnant, while the outer parts keep the spin signature of the precursor disks. The peculiar core is composed mostly of bulge material, and its
Balcells, Marc +1 more
openaire +2 more sources
The Astronomical JournalIntermediate-mass black holes (IMBHs) are believed to be the missing link between the supermassive black holes (BHs) found at the centers of massive galaxies and BHs formed through stellar core collapse. One of the proposed mechanisms for their formation
Rujuta A. Purohit +4 more
doaj +1 more source
The Astrophysical Journal Letters, 2023 Extreme emission line galaxies (EELGs), where nebular emissions contribute 30%–40% of the flux in certain photometric bands, are ubiquitous in the early Universe ( z > 6).
Anshu Gupta +9 more
doaj +1 more source
Formation of S0 galaxies through mergers [PDF]
Astronomy & Astrophysics, 2014 Lenticular galaxies (S0s) are more likely to host antitruncated (Type-III) stellar discs than galaxies of later Hubble types. Major mergers are popularly considered too violent mechanisms to form these breaks. We have investigated whether major mergers can result into S0-like remnants with realistic antitruncated stellar discs or not.
Borlaff, Alejandro +8 more
openaire +6 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
Dynamics of Star Cluster Formation: Mergers in Gas-rich Environments
The Astrophysical JournalWe perform high-resolution simulations of forming star clusters as they merge inside giant molecular clouds (GMCs) using hydrodynamics coupled to N -body dynamics to simultaneously model both the gas and stars.
Jeremy Karam, Alison Sills
doaj +1 more source