Results 21 to 30 of about 2,094,644 (376)
Orbital evolution of satellite galaxies in self-interacting dark matter models [PDF]
Physical Review D, 2021 Dark matter self interactions can leave distinctive signatures on the properties of satellite galaxies around Milky Way--like hosts through their impact on tidal stripping, ram pressure, and gravothermal collapse.
O. Slone +3 more
semanticscholar +1 more source
Shapes of Milky-Way-mass galaxies with Self-Interacting Dark Matter [PDF]
Monthly notices of the Royal Astronomical Society, 2021 Self-interacting dark matter (SIDM) models offer one way to reconcile inconsistencies between observations and predictions from collisionless cold dark matter (CDM) models on dwarf-galaxy scales. In order to incorporate the effects of both baryonic and
Drona Vargya +6 more
semanticscholar +1 more source
Velocity-dependent self-interacting dark matter from groups and clusters of galaxies [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We probe the self-interactions of dark matter with relaxed galaxy groups and clusters using observational data from strong and weak lensing and stellar kinematics.
L. Sagunski +4 more
semanticscholar +1 more source
The SEDs of interacting galaxies [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractThe evolution of galaxies is greatly influenced by their interactions. As part of a program to study interacting galaxies, we have measured and modeled the spectral energy distributions (SEDs) from the ultraviolet (UV) to the far-infrared (FIR).
Elisabete da Cunha +10 more
openaire +4 more sources
INTERACTIONS OF GALAXIES IN THE GALAXY CLUSTER ENVIRONMENT [PDF]
The Astrophysical Journal, 2009 We study the dependence of galaxy properties on the clustercentric radius and the environment attributed to the nearest neighbor galaxy using the SDSS galaxies associated with the Abell galaxy clusters. We find that there exists a characteristic scale where the properties of galaxies suddenly start to depend on the clustercentric radius at fixed ...
Changbom Park, Ho Seong Hwang
openaire +3 more sources
Interacting galaxies on FIRE-2: the connection between enhanced star formation and interstellar gas content [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We present a comprehensive suite of high-resolution (parsec-scale), idealised (non-cosmological) galaxy merger simulations (24 runs, stellar mass ratio ~2.5:1) to investigate the connection between interaction-induced star formation and the evolution of ...
J. Moreno +10 more
semanticscholar +1 more source
A diversity of starburst-triggering mechanisms in interacting galaxies and their signatures in CO emission [PDF]
Astronomy & Astrophysics, 2019 The physical origin of enhanced star formation activity in interacting galaxies remains an open question. Knowing whether starbursts are triggered by an increase in the quantity of dense gas or an increase in the star formation efficiency therein would ...
F. Renaud +7 more
semanticscholar +1 more source
Active galactic nuclei and galaxy interactions [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 We perform a statistical analysis of AGN host characteristics and nuclear activity for AGNs in pairs and without companions. Our study concerns a sample of AGNs derived from the SDSS-DR4 data by Kauffmann et al (2003) and pair galaxies obtained from the same data set by Alonso et al. (2006).
Alonso, M. Sol +3 more
openaire +5 more sources
Constraining velocity-dependent self-interacting dark matter with the Milky Way’s dwarf spheroidal galaxies [PDF]
, 2020 The observed anti-correlation between the central dark matter (DM) densities of the bright Milky Way (MW) dwarf spheroidal galaxies (dSphs) and their orbital pericenter distances poses a potential signature of self-interacting dark matter (SIDM). In this
Camila A Correa
semanticscholar +1 more source
Testing the Radio-selection Method of Dual Active Galactic Nuclei in the Stripe 82 Field
The Astrophysical Journal, 2023 We test the merger-induced dual active galactic nuclei (dAGNs) paradigm using a sample of 35 radio galaxy pairs from the Sloan Digital Sky Survey Stripe 82 field.
Arran C. Gross +5 more
doaj +1 more source