Results 131 to 140 of about 2,636,463 (178)
Exploring the Evolution of a Dwarf Spheroidal Galaxy with SPH Simulations. II. AGN Feedback
The Astrophysical JournalWe investigate active galactic nucleus (AGN) feedback from an intermediate-mass black hole at the center of a dwarf spheroidal galaxy, by performing isolated galaxy simulations using a modified version of the GADGET-3 code. We consider Leo II (PGC 34176)
Roberto Hazenfratz +3 more
doaj +1 more source
, 2011 This intermediate report on the STELLAR Delphi study closes the gap between the first deliverable on the Delphi study D1.3 (Spada et al. 2010) which was published in July 2010 and the second and final deliverable D1.6 which is planned for January 2012 ...
Spada, Hans +2 more
core +2 more sources
Stellar Evolution with Radiative Feedback in AGN Disks
The Astrophysical JournalStars embedded in the inner parsec region of an active galactic nucleus (AGN) experience extreme accretion conditions that significantly alter their evolution.
Zheng-Hao Xu +2 more
doaj +1 more source
The properties of the ISM in disc galaxies with stellar feedback
, 2011 We perform calculations of isolated disc galaxies to investigate how the properties of the ISM, the nature of molecular clouds, and the global star formation rate depend on the level of stellar feedback. We adopt a simple physical model, which includes a galactic potential, a standard cooling and heating prescription of the ISM, and self gravity of the
Dobbs, C. L. +2 more
openaire +2 more sources
The Astrophysical JournalWith new atomic-hydrogen (H i ) observations of FAST Extended Atlas of Selected Targets Survey (FEASTS), we present the first statistical comparison of H i morphology between observations and cosmological simulations, focusing on low-column-density (∼10 ^
Xuchen Lin +4 more
doaj +1 more source
Investigating the Impact of Supernova Feedback on Satellites in Elliptical Galaxies
The Astrophysical JournalWe investigate the influence of supernova (SN) feedback on the satellites of elliptical host galaxies using hydrodynamic simulations. Utilizing a modified version of the GADGET-3 code, we perform cosmological zoom-in simulations of 11 elliptical galaxies
Sumi Kim +6 more
doaj +1 more source
How stellar feedback simultaneously regulates star formation and drives outflows
, 2017 Stellar-feedback-driven outflows are thought to be a crucial process in galaxy formation, but our physical understanding of them is still rudimentary. I will present an analytical model for how stellar feedback simultaneously regulates star formation and
Hayward, Christopher C. (5366752) +1 more
core +1 more source
The Astrophysical JournalObservations indicate that early-type galaxies exhibit varying slopes in the relation between their central stellar surface density and stellar mass (Σ _1 – M _⋆ ).
Fazeel Mahmood Khan +4 more
doaj +1 more source
The nature and origin of disky elliptical galaxies [PDF]
, 2002 The observational trend that disky elliptical galaxies exhibit younger luminosity- weighted ages than boxy ellipticals is investigated. The presence of a possible young stellar disk embedded in these galaxies is explored by comparing kinematics derived ...
McDermid, Richard Morgan
core
Testable Predictions of Outside-in Age Gradients in Dwarf Galaxies of All Types
The Astrophysical JournalWe use a sample of 73 simulated satellite and central dwarf galaxies spanning a stellar mass range of 10 ^5.3 –10 ^9.1 M _⊙ to investigate the origin of their stellar age gradients.
Claire L. Riggs +6 more
doaj +1 more source