Active Galactic Nucleus Feedback in an Elliptical Galaxy with the Most Updated AGN Physics. II. High Angular Momentum Case [PDF]
Astrophysical Journal, 2017 This is the second paper of our series of works of studying the effects of active galactic nuclei (AGNs) feedback on the cosmological evolution of an isolated elliptical galaxy by performing two-dimensional hydrodynamical simulations.
D. Yoon +5 more
semanticscholar +1 more source
Chemie Ingenieur Technik, EarlyView., 2023 Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley +1 more source
Analysis of the escape in systems with four exit channels
Mathematical Methods in the Applied Sciences, Volume 46, Issue 1, Page 1032-1044, 15 January 2023., 2023 In this paper, we have performed a numerical investigation of the escape of a particle from two different dynamical systems with the same number of exit channels. We have chosen specific values of the parameters of the systems so that the openings of the potential well in both systems are approximately of the same size.
Juan F. Navarro +2 more
wiley +1 more source
Active Galactic Nucleus Feedback in an Elliptical Galaxy with the Most Updated AGN Physics. I. Low Angular Momentum Case [PDF]
, 2017 We investigate the effects of AGN feedback on the cosmological evolution of an isolated elliptical galaxy by performing two-dimensional high-resolution hydrodynamical numerical simulations. The inner boundary of the simulation is chosen so that the Bondi
F. Yuan +5 more
semanticscholar +1 more source
THE DRAGONFLY NEARBY GALAXIES SURVEY. II. ULTRA-DIFFUSE GALAXIES NEAR THE ELLIPTICAL GALAXY NGC 5485 [PDF]
, 2016 We present the unexpected discovery of four ultra-diffuse galaxies (UDGs) in a group environment. We recently identified seven extremely low surface brightness galaxies in the vicinity of the spiral galaxy M101, using data from the Dragonfly Telephoto ...
A. Merritt +6 more
semanticscholar +1 more source
Discovery of Ram-pressure Stripped Gas around an Elliptical Galaxy in Abell 2670 [PDF]
, 2017 Studies of cluster galaxies are increasingly finding galaxies with spectacular one-sided tails of gas and young stars, suggestive of intense ram-pressure stripping. These so-called “jellyfish” galaxies typically have late-type morphology.
Y. Sheen +9 more
semanticscholar +1 more source
High-resolution ALMA observations of SDP.81. I. The innermost mass profile of the lensing elliptical galaxy probed by 30 milli-arcsecond images [PDF]
, 2015 We report the detailed modeling of the mass profile of a z = 0.2999 massive elliptical galaxy using 30 milli-arcsecond resolution 1 mm Atacama Large Millimeter/submillimeter Array (ALMA) images of the galaxy–galaxy lensing system SDP.81.
Y. Tamura +5 more
semanticscholar +1 more source
A giant elliptical galaxy with a lightweight initial mass function [PDF]
, 2013 We present new observations of the closest known strong-lensing galaxy, the σ ≈ 330 km s− 1 giant elliptical ESO325−G004, made with the ESO Very Large Telescope.
Russell J. Smith, J. Lucey
semanticscholar +1 more source
THE ElIXr GALAXY SURVEY. II. BARYONS AND DARK MATTER IN AN ISOLATED ELLIPTICAL GALAXY [PDF]
, 2012 The Elliptical Isolated X-ray (ElIXr) Galaxy Survey is a volume-limited (
P. Humphrey +3 more
semanticscholar +1 more source
Hoag’s Object: evidence for cold accretion on to an elliptical galaxy [PDF]
, 2011 We present new photometric and spectroscopic observations of the famous Hoag’s Object, a peculiar ring galaxy with a central roundish core. The nature of Hoag’s Object is still under controversy. Previous studies demonstrated that a major accretion event
I. Finkelman +3 more
semanticscholar +1 more source