Results 31 to 40 of about 208,581 (197)

Boosted Tidal Disruption by Massive Black Hole Binaries During Galaxy Mergers FROM The View of N-Body Simulation [PDF]

open access: yes, 2016
Supermassive black hole binaries (SMBHBs) are productions of the hierarchical galaxy formation model. There are many close connections between central SMBH and its host galaxy because the former plays very important roles on the formation and evolution ...
Berczik, Peter   +3 more
core   +3 more sources

Large Scale Structure in Dark Matter and Galaxies [PDF]

open access: yes, 2009
Galaxy evolution and AGN growth in the early universe are believed to be strongly driven by merging (hierarchical growth) and galaxy dynamical interactions.
Scoville, Nick
core   +1 more source

Galaxy Evolution from Deep Galaxy Counts [PDF]

open access: yesSymposium - International Astronomical Union, 1995
We present deep galaxy number counts and colours of K – band selected galaxy surveys. We argue that primeval galaxies are present within the survey data, but have remained unidentified. There are few objects with the colours of an L∗ elliptical galaxy at a redshift of z ≈ 1, in contradiction to standard luminosity evolution models.
openaire   +1 more source

Parallelization, Special Hardware and Post-Newtonian Dynamics in Direct N - Body Simulations [PDF]

open access: yes, 2008
The formation and evolution of supermassive black hole (SMBH) binaries during and after galaxy mergers is an important ingredient for our understanding of galaxy formation and evolution in a cosmological context, e.g.
A. Ahmad   +34 more
core   +1 more source

A Simple Technique for Predicting High-Redshift Galaxy Evolution

open access: yes, 2015
We show that the ratio of galaxies' specific star formation rates (SSFRs) to their host halos' specific mass accretion rates (SMARs) strongly constrains how the galaxies' stellar masses, specific star formation rates, and host halo masses evolve over ...
Behroozi, Peter S., Silk, Joseph
core   +2 more sources

Comparison of the Chemical Compositions between the Bright and Faint Red Clumps for the Metal-poor and Metal-rich Populations in the Milky Way Bulge

open access: yesThe Astrophysical Journal
We examined the double red clump (RC) observed in the Galactic bulge, interpreted as a difference in distance (“X-shaped bulge scenario”) or in chemical composition (“multiple population scenario”).
Seungsoo Hong   +2 more
doaj   +1 more source

Where giants dwell: Probing the environments of early massive quiescent galaxies

open access: yesAstronomy & Astrophysics
We investigated the environments of massive quiescent galaxies at 3 ≲ z ≲ 5 using the GAlaxy Evolution and Assembly (GAEA) theoretical model. We selected galaxies with stellar mass above 1010.8 M⊙ and specific star formation rates below 0.3 × t−1 ...
De Lucia Gabriella   +3 more
doaj   +1 more source

Galaxy peculiar velocities and evolution-bias [PDF]

open access: yes, 2007
Galaxy bias can be split into two components: a formation-bias based on the locations of galaxy creation, and an evolution-bias that details their subsequent evolution. In this letter we consider evolution-bias in the peaks model.
Percival, Will J., Schaefer, Bjoern M.
core   +2 more sources

Living with Neighbors. V. Better-aligned Spiral+Spiral Galaxy Pairs Show Stronger Star Formation

open access: yesThe Astrophysical Journal
Enhanced star formation (SF) with star-forming neighboring galaxies bolsters the hydrodynamical contributions during paired interactions. Although the relative spin orientation between interacting galaxies can influence this effect, it has not been ...
Woong-Bae G. Zee   +3 more
doaj   +1 more source

MRC B0319-454: Probing the large-scale structure with a giant radio galaxy

open access: yes, 2008
We present an investigation of the relationships between the radio properties of a giant radio galaxy MRC B0319-454 and the surrounding galaxy distribution with the aim of examining the influence of intergalactic gas and gravity associated with the large-
Begelman   +51 more
core   +1 more source

Home - About - Disclaimer - Privacy