Results 141 to 150 of about 675,630 (383)

What Are S0 Galaxies?

open access: yes, 2009
The data collected in the Shapley-Ames catalog of bright galaxies show that lenticular (S0) galaxies are typically about a magnitude fainter than both elliptical (E) and early spiral (Sa) galaxies.
Hubble   +5 more
core   +1 more source

EMERGE – an empirical model for the formation of galaxies since z ∼ 10 [PDF]

open access: yes, 2017
We present EMERGE, an Empirical ModEl for the foRmation of GalaxiEs, describing the evolution of individual galaxies in large volumes from z similar to 10 to the present day.
B. Moster, T. Naab, S. White
semanticscholar   +1 more source

Galaxies and subhaloes in ΛCDM galaxy clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
6 pages, 2 figures, accepted for publication in Monthly Notices Letters.
G. De Lucia   +3 more
openaire   +4 more sources

Artificial Intelligences: A Bridge Toward Diverse Intelligence and Humanity's Future

open access: yesAdvanced Intelligent Systems, EarlyView.
Many discussions of artificial intelligence fail to address deeper questions being raised by advances in developmental biology, neuroscience, bioengineering, and philosophy of mind. Novel beings, including technologically and biologically augmented humans, engineered life forms, hybrots, and others, require tools of the emerging field of diverse ...
Michael Levin
wiley   +1 more source

NIR Luminosity Function of Galaxies in Close Major-Merger Pairs and Mass Dependence of Merger Rate

open access: yes, 2003
A sample of close major-merger pairs (projected separation ${\rm 5 \leq r \leq 20 h^{-1}}$ kpc, ${\rm K_s}$ band magnitude difference $\delta {\rm K_s} \leq 1$ mag) is selected from the matched 2MASS-2dFGRS catalog of Cole et al. (2001).
C. K. Xu   +4 more
core   +2 more sources

COSMIC REIONIZATION AND EARLY STAR-FORMING GALAXIES: A JOINT ANALYSIS OF NEW CONSTRAINTS FROM PLANCK AND THE HUBBLE SPACE TELESCOPE [PDF]

open access: yes, 2015
We discuss new constraints on the epoch of cosmic reionization and test the assumption that most of the ionizing photons responsible arose from high-redshift star-forming galaxies.
B. Robertson   +3 more
semanticscholar   +1 more source

Parametric Design of Continuum Robots Using Interlocking Ball Joints

open access: yesAdvanced Intelligent Systems, EarlyView.
Herein, a parametric design methodology is introduced for producing a wide variety of modular ball joint‐based continuum robots. It is demonstrate by designing a magnetically actuated continuum robot for cardiac ablations. The methodology is released as an open‐source computer‐assisted design extension that automatically designs continuum robots based ...
Alexandre Mesot   +5 more
wiley   +1 more source

Investigation of the Stellar Population of Several Polar Ring Galaxies

open access: yesGalaxies, 2016
We present results of our investigation of two multi-spin galaxies which were taken from the catalog of polar ring galaxies. All of them possess nucleus-like knots.
Liliya Shalyapina   +4 more
doaj   +1 more source

The V_c-sigma_c relation in high and low surface brightness galaxies

open access: yes, 2004
We investigate the relation between the asymptotic circular velocity, V_c, and the central stellar velocity dispersion, sigma_c, in galaxies. We consider a new sample of high surface brightness spiral galaxies (HSB), low surface brightness spiral ...
Bertola, F.   +5 more
core   +1 more source

RECONCILING DWARF GALAXIES WITH ΛCDM COSMOLOGY: SIMULATING A REALISTIC POPULATION OF SATELLITES AROUND A MILKY WAY–MASS GALAXY [PDF]

open access: yes, 2016
Low-mass “dwarf” galaxies represent the most significant challenges to the cold dark matter (CDM) model of cosmological structure formation. Because these faint galaxies are (best) observed within the Local Group (LG) of the Milky Way (MW) and Andromeda (
A. Wetzel   +5 more
semanticscholar   +1 more source

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